Use of wall to wall moderate and high resolution satellite imagery to monitor forest cover across Europe - The European Commissions science and knowledge service
A new method for extracting seasonality information from time-series of satellite sensor data is presented. The method is based on nonlinear least squares fits of asymmetric Gaussian model functions to the time-series. The smooth model functions are then used for defining key seasonality parameters, such as the number of growing seasons, the beginning and end of the seasons, and the rates of growth and decline. The method is implemented in a computer program TIMESAT and tested on Advanced Very High Resolution Radiometer (AVHRR) normalized difference vegetation index (NDVI) data over Africa. Ancillary cloud data [clouds from AVHRR (CLAVR)] are used as estimates of the uncertainty levels of the data values. Being general in nature, the proposed method can be applied also to new types of satellite-derived time-series data ...
Leaf biochemistry and biophysical parameters are important for simulating soil‐vegetation‐atmosphere exchanges of energy, water, CO2 and ammonia. The accumulation of leaf nitrogen (N) in vegetation canopies is a major component of the ecosystem N balance, and leaf N concentration and leaf area index (LAI) are important determinants of the maximum CO2 uptake by plants and trees. In NEU, high spatial resolution remote sensing data from the SPOT satellite were acquired to prepare maps of leaf N and LAI for 5 European landscapes. Mapping was conducted using the REGFLEC model which is an automatic and image‐based methodology developed for regional chlorophyll (Cab) and LAI estimation (ie. Houborg and Andersen, JARS 3, 2009). REGFLEC combines models for atmospheric correction (6S), canopy reflectance ...
Buy or Rent Post-Launch Calibration of Satellite Sensors as an eTextbook and get instant access. With VitalSource, you can save up to 80% compared to print.
A hybrid satellite communications system provides communications, particularly Internet access, to computer users. The hybrid satellite communications system includes a satellite system and a terrestrial communications system. The satellite system includes two transceivers. The first transceiver receives and transmits a first set of signals received from the terrestrial communications system to a plurality of user units. In reverse fashion, the satellite systems second transceiver receives a second set of signals in a second frequency band from the user units and transmits those signals back to the terrestrial communications system. The first set of signals (downlink signals) are of much higher frequency than the second set of signals (uplink signals). Preferably, the first set of signals are relayed by a Direct Broadcast System (DBS) satellite in a frequency band between 12.2 GHz and 12.9 GHz, while the second set of signals are relayed by a Mobile Satellite System (MSS) satellite operating between 1.0
ADCC is a global leader in serving Geospatial and Information Technology domain to facilitate the professionals with customized solutions for versatile engineering domains. Incorporated in 1998, it has emerged as a premier software solution provider through its alliances with world leaders like Autodesk Inc., ESRI (GIS mapping Solution, Software, Services), Mathworks, Dassault Systemes, Digital Globe - India & Africa (High Resolution Satellite Imageries), Intergraph (Erdas Imaging & LPS Software and extensions) Siemens, & National Instruments (Experiential Engineering Laboratories). ADCC has developed and improvised GIS solutions, to design & to capture, store, manipulate, analyze, manage and present all types of geographical data and has developed domain expertise in the fields of GIS, Remote Sensing, Lidar (Light Detection and Ranging), Photogrammetry, Energy System and solutions, Engineering Design Services, Surveys and Customized Application Development, with requisite human resource of ...
Automating Photogrammetric Processing and Data Fusion of Very High Resolution Satellite Imagery with LIDAR, iFSAR and Maps for Fast, Low-Cost and Precise 3D Urban ...
Read a description of Satellite Communications Systems. This is also known as Satellites Systems, Satellite Systems. Free detailed reports on Satellite Communications Systems are also available.
Gallery of high resolution satellite maps and imagery. Satellite images include WorldView-4, GeoEye-1, WorldView-3, Pleiades satellites maps.
Harmful pollutants such as nitrogen oxides can cause severe lung damage, decrease visibility, and lead to global climate change, among other effects. As many countries try to implement and enforce emission regulations, they require ways to monitor progress and evaluate the best course of action moving forward. The technical solution designed by the capstone team is a small satellite equipped with a high-resolution spectrograph designed to pinpoint the exact locations of increased nitrogen oxide emissions in select cities around the world. The focus of the STS research examines the ways in which governments, industries, and citizens can and should impact emissions in the areas they affect. Specifically, the STS research focuses on improving emission regulation efficacy through personal and public accountability garnered through education and widely available data. This data will come from both currently available satellites and the CubeSat developed by the technical project team to provide deeper ...
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Using radiation measurements obtained by the MetOp satellite, scientists have produced the first complete map of global ammonia emissions - a pollutant of key environmental concern. The map, based on observations throughout 2008, shows inaccuracies in current ammonia inventories and iden…
Desert-based vicarious calibration plays an important role in generating long-term reliable satellite radiances for the visible and near-infrared channels of Advanced Very High Resolution Radiometer (AVHRR). Lacking an onboard calibration device, the AVHRR relies on reflected radiances from a target site, e.g., a large desert, to calibrate its solar reflective channels. While the radiometric characteristics of the desert may be assumed stable, the reflected radiances from the target can occasionally be affected by the presence of clouds, sand-storms, vegetation, and wet surface. These contaminated pixels must be properly identified and removed to ensure calibration performance. This paper describes an algorithm to remove the contaminated pixels from AVHRR measurements taken over the Libyan Desert based on the characteristics of consistent Normalized Difference Vegetation Index (NDVI) land-cover stratification. We first apply a NDVI histogram-determined threshold to screen pixels contaminated ...
A satellite communications system includes a plurality of feeder link antennas, a primary satellite, and an auxiliary satellite. The feeder link antennas are substantially co-located relative to one another. The primary satellite is configured to receive information over a plurality of return service links from radioterminals, to communicate a first portion of the information over at least one return feeder link directly to a first one of the feeder link antennas, and to communicate a second portion of the information over at least one inter-satellite link. The auxiliary satellite is spaced apart from the primary satellite, and configured to receive the second portion of the information from the primary satellite via the at least one inter-satellite link, and to communicate the second portion of the information across at least one return feeder link to a second one of the feeder link antennas.
Based on Mark Chartrands highly successful seminar series, this book is a comprehensive introduction to satellite communications covering a broad sweep of regulatory, standards, economics, business, operational, and technical subjects. The text is easily readable, highly entertaining, and truly geared for the nontechnical. Dr. Chartrand employs his unique ability gained over two decades of teaching to explain complex technical and satellite applications to professionals in marketing, finance, law, public relations, and journalism, as well as personnel in ancillary fields and members of the public who wish to better understand the satellite industry.,br, ,br, Dr. Mark Chartrand is THE single best educator, lecturer and satellite personality in the United States, if not the world.... This is a must-read book. ,br,--David Bross, Via Satellite Magazine,br,Softcover version of PM128 ...
Changes in the spatial distributions of vegetation across the globe are routinely monitored by satellite remote sensing, in which the reflectance spectra over land surface areas are measured with spatial and temporal resolutions that depend on the satellite instrumentation. The use of multiple synchronized satellite sensors permits long-term monitoring with high spatial and temporal resolutions. However, differences in the spatial resolution of images collected by different sensors can introduce systematic biases, called scaling effects, into the biophysical retrievals. This study investigates the mechanism by which the scaling effects distort normalized difference vegetation index (NDVI). This study focused on the monotonicity of the area-averaged NDVI as a function of the spatial resolution. A monotonic relationship was proved analytically by using the resolution transform model proposed in this study in combination with a two-endmember linear mixture model. The monotonicity allowed the inherent
As can be seen, most models exhibit large biases as much as 50 deg. C! - in feedback-inferred climate sensitivity, the result of low biases in the regression-diagnosed feedback parameters. Only 5 of the 18 IPCC AR4 models have errors in regression-inferred sensitivity less than 1 deg. C, and that is after beating down some noise with ten 5-year periods from each model! We cant do that with only 10 years of satellite data.. Now, note that as long as such large inferred climate sensitivities (50+ deg.!?) can be claimed to be supported by the satellite data, the IPCC can continue to warn that catastrophic global warming is a real possibility. The real reason why such biases exist, however, is addressed in greater depth in our new paper, (Spencer and Braswell, 2010). The low bias in diagnosed feedback (and thus high bias in climate sensitivity) is related to the extent to which time-varying radiative forcing, mostly due to clouds, contaminates the radiative feedback signal responding to temperature ...
Daytime satellite images, like this one of the border between rich and poor neighborhoods in Nairobi, do a better job of predicting poverty than images taken at night. You can fix the worlds problems only if you know where they are. Thats why tracking poverty in Africa, for example, is critical for the United Nations, which launched a global poverty campaign last year. But gathering the data on the ground can be dangerous, slow, and expensive. Now, a study using satellite images and machine learning reveals an alternative: mapping poverty from space. High-powered cameras on satellites are constantly snapping photos of Earth, and scientists have wondered whether poverty can be detected just by analyzing the images. The first attempts to do that relied on images of the planet at night ...
download Introduction to Satellite Communication (Artech House Space of this multi-step is residential to recipients fields; services. &: well judge your publications and know any clear monitors before bestselling. localize conversion to dynamics, support, and providers.
Find all books from Ilcev, Stojce Dimov - Global Mobile Satellite Communications. At find-more-books.com you can find used, antique and new books, COMPARE results and immediately PURCHASE your selection at the best price. 9781402027840
This study assesses polar stratospheric nitrous oxide (N(2)O) and methane (CH(4)) data from the Improved Limb Atmospheric Spectrometer-II (ILAS-II) on board the Advanced Earth Observing Satellite-II (ADEOS-II) retrieved by the Version 1.4 retrieval algorithm. The data were measured between January and October 2003. Vertical profiles of ILAS-II volume mixing ratio (VMR) data are compared with data from two balloon-borne instruments, the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS-B) and the MkIV instrument, as well as with two satellite sensors, the Odin Sub-Millimetre Radiometer (SMR) for N(2)O and the Halogen Occultation Experiment (HALOE) for CH(4). Relative percentage differences between the ILAS-II and balloon/satellite data and their median values are calculated in 10-ppbv-wide bins for N(2)O (from 0 to 400 ppbv) and in 0.05-ppmv-wide bins for CH(4) (from 0 to 2 ppmv) in order to assess systematic differences between the ILAS-II and balloon/satellite data. According to this
Earth Imaging Journal is a bimonthly magazine covering a range of earth observation and geospatial technologies and applications.
Comparative analysis of SPOT, Landsat, MODIS, and AVHRR normalized di﫿erence vegetation index data on the estimation of leaf area index in a mixed grassland ...
Starting from the Commercial Space Act of 1998 established in the United States, usage of satellite image in the private enterprises began, led by the launch of IKONOS-1, an optical image satellite with high resolution below 1m, attempted by GeoEye Inc. in 1999. It can be said that space business utilizing Earth observation data started in the Heisei period.. In Europe, free satellite data platform Copernicus Programme was established. This provided a wide range of options to available free Earth observation satellite data, for the only data available was LandSat program operated by the United States until then.. It is fairly recent that Keyhole Earthview (an original service of Google Earth) was released, and that attempt of providing users satellite data and satellite data analysis platform together began.. Moreover, many startups have been founded in the Heisei period.. There are DigitalGlobe which owns many high-resolution optical satellites, Planet which operates more than 350 ...
If we can track the source of turbidity, we can better understand why turbidity is changing. And if the source is human-related, we can try to manage that human activity, says Frank Muller-Karger, a study co-author from the University of South Florida. Satellites previously have observed turbidity in the open ocean by monitoring how much light is reflected and absorbed by the water. The technique has not had much success in observing turbidity along the coast, however. Thats because shallow coastal waters and Earths atmosphere serve up complicated optical properties that make it difficult for researchers to determine which colors in a satellite image are related to turbidity, which to shallow bottom waters, and which to the atmosphere. Now with advances in satellite sensors combined with developments in how the data are analyzed, Chen and colleagues show it is possible to monitor turbidity of coastal waters via satellite. The traditional methods of monitoring coastal water quality require ...
Drift+Noise: supporting ice navigation and polar research with high resolution satellite images; 24 hours a day, 365 days a year.
Improvement of satellite sensor characteristics motivates the development of new techniques for satellite image classification. Spatial information seems to be critical in classification processes, especially for heterogeneous and complex landscapes such as those observed in the Mediterranean basin. In our study, a spectral classification method of a LANDSAT-5 TM imagery that uses several binomial logistic regression models was developed, evaluated and compared to the familiar parametric maximum likelihood algorithm. The classification approach based on logistic regression modelling was extended to a contextual one by using autocovariates to consider spatial dependencies of every pixel with its neighbours. Finally, the maximum likelihood algorithm was upgraded to contextual by considering typicality, a measure which indicates the strength of class membership. The use of logistic regression for broad-scale land cover classification presented higher overall accuracy (75.61%), although not statistically
One-eyed Orbital Snake writes Interesting essay in the NYT magazine (free login, yadda yadda) on commercial 1m resolution satellite photos, with the Sept. 24 launch of Space Images Ikonos. Not much new, but well written and all in one place. References Clarkes 2061, Brins Transparent Society...
The temperature at the surface of the ocean (SST : sea surface temperature) is an important physical property that can be measured quite easily from Earth Observation satellites. SST has a strong influence on the exchange of heat, momentum, water and gases between the ocean and the atmosphere. Knowledge of the geographical distribution of SST and its variation with time is therefore essential for predicting the dynamical behaviour of the atmosphere and the ocean. SST is also an important indicator of climate and climate change, giving us a finger on the pulse of the planet itself.. The large volume of data acquired from twenty years of satellite observations of SST has given scientists a uniquely detailed view of the changing physical characteristics of the surface of the oceans, sampled at a rate impossible to achieve with only ship based observations. Today the entire planet is observed at least once a day by various satellite sensors. Demands are increasing to frequently update measurements ...
Purchase Classifying Explosion Prone Areas for the Petroleum, Chemical and Related Industries - 1st Edition. Print Book & E-Book. ISBN 9780815513667, 9780815516446
A novel methodology base on multi-feature object-oriented MRF(MFOMRF) is proposed in order to obtain precise segmentation of high resolution satellite imag
20 April 2017, Rome - Measuring how efficiently water is used in agriculture, particularly in water-scarce countries, is going high-tech with the help of a new tool developed by FAO. The WaPOR open-access database has gone live, tapping satellite data to help farmers achieve more reliable agricultural yields and allowing for the optimization of irrigation systems. WaPOR was presented this week during a high-level partners meeting for FAOs Coping with water scarcity in agriculture: a global framework for action in a changing climate. It allows for fine-grained analysis of water utilised through farming systems, generating empirical evidence about how it can be most productively used. Worldwide water utilization - the majority of which is used by agriculture - has outpaced the rate of population growth for most of the last century and some regions are close to breaching viable limits. Water use continues to surge at the same time that climate change - with increasing droughts and extreme weather ...
Sea Levels on the Rise, as Satellite Data Tells. Photo: xqakdwrs/Shutterstock Global sea level rise is not cruising along at a steady 3 mm per year, its accelerating a little every year, like a
Aerosols are the tiny suspended particles in the atmosphere playing a major role in influencing the net radiation budget of the earth. The aerosols also affect cloud microphysics and those with land origin, possibly reduce the monsoon rainfall. Dynamic and diverse nature of the aerosols varies according to different locations. The aerosols originating due to desert dust, rural atmospheric situations, urban pollutants and marine areas have wide variations and display specific characteristics. Routine monitoring of aerosol events and their subsequent dispersal pattern are important in order to understand their role in climatic process. Hence, it is very important to study the aerosols and their retrieval strategy from the ocean colour remote sensing sensors. The satellite sensors provide platform for making observations covering large area as also their short-term and frequent repetivity. Ocean-colour sensors e.g. CZCS, SeaWiFS, MODIS, POLDAR, Oceansat-1 & 2 OCM have been used to study aerosols, apart
This paper describes the third part of a series of investigations to develop algorithms for simultaneous retrieval of aerosol parameters and surface spectral reflectance from GEOstationary Trace gas and Aerosol Sensor Optimization (GEO-TASO) instrument. Since the algorithm is designed for future hyperspectral and geostationary satellite sensors, such as Tropospheric Emissions: Monitoring of Pollution (TEMPO), it is applied to GEO-TASO data measured over the same area by different flights as part of the Korea-United Stated Air Quality Study (KORUS-AQ) field campaign in 2016. While GEO-TASO has a spectral sampling interval of ~0.28 nm in the visible, its data is thinned through a band selection approach with consideration of atmospheric transmittance and different surface types, which yields 20 common spectral bands to be used by the algorithm. The algorithm starts with 4 common principal components (PCs) for surface spectral reflectance extracted from various spectral libraries; constraints of ...
Currently, most GOES-10 Imagery are available from April 11, 2003 up to March 02, 2020. There might be a few missing satellite images and/or time periods, most notably July and December of 2003. GOES-12 Imagery are available from April 20, 2004 up to March 02, 2020, and generally does not have any missing periods or images. Another page is under development for images from the higher resolution GOES-17 that displays products beyond March 02, 2020. ...
Currently, most GOES-10 Imagery are available from April 11, 2003 up to March 02, 2020. There might be a few missing satellite images and/or time periods, most notably July and December of 2003. GOES-12 Imagery are available from April 20, 2004 up to March 02, 2020, and generally does not have any missing periods or images. Another page is under development for images from the higher resolution GOES-17 that displays products beyond March 02, 2020. ...
Currently, most GOES-10 Imagery are available from April 11, 2003 up to March 02, 2020. There might be a few missing satellite images and/or time periods, most notably July and December of 2003. GOES-12 Imagery are available from April 20, 2004 up to March 02, 2020, and generally does not have any missing periods or images. Another page is under development for images from the higher resolution GOES-17 that displays products beyond March 02, 2020. ...
What has half a century of Earth Observation taught us? The single biggest revolution is that our planet is always in flux. Like traditional paper maps, an individual satellite acquisition is rapidly outdated. But repeat acquisitions add a time dimension, capturing the dynamic complexity of the Earth system - differences between a wide array of satellite sensors, improving the understanding of how the Earth system works and the impact of human activities.. ...
This graphic by aviation meteorologist Gary Ellrod explains how to identify which pixels in a nighttime satellite image are low stratus (fog), high cirrus (not fog) or clear sky. Three images of the same location at the same time are stacked in a column on the right with a transect line of 480 km from site A to site B. The top picture is from GOES sensor channels 4, sensitive to longwave 10.7 μm infrared energy, and the middle picture is from sensor channel 2 ,sensitive to shortwave 3.9 μm infrared. The bottom image is the result of subtracting the radiant energy value of channel 2 from channel 4. The darkest pixels are high cirrus, the lightest are low stratus fog, and clear sky is a grey shade. The graph on the left shows the radiant energy converted to temperature degrees Kelvin, for each pixel along the transect. At night, when there is no reflected solar radiation to overwhelm the infrared sensors, temperatures from both the shortwave and longwave infrared channels are much lower for ...
Satellite images are being used in many applications like Meteorology, Agriculture, Geology, Forestry, Landscape, Biodiversity, Planning,...
Atalasoft leverages their DotImage toolkit to manipulate color channels for the purpose of image enhancement, in this case satellite images. The article is a tutorial on image enhancement and it includes all source code and test images.; Author: Lou Franco; Updated: 13 Nov 2007; Section: Product Showcase; Chapter: Third Party Products; Updated: 13 Nov 2007
NASA, Environment and Climate Change Canada and collaborating scientific universities found 2005-2014 satellite images were capable of showing 39 sulfur di
A fast-paced tutorial on satellite image geometry.  Mono & stereo collection geometry.  Effects of collection geometry on image quality, perspective and accu…
Even though Bing is on the receiving end of a lot of derision from the tech world when it comes to its search engine there are a growing number of people who have started to take second looks at Microsofts search service and coming away more positive than previously.. To help add some bulk to its service Bing has just released 165 terabytes of new satellite images to its mapping platform, making this the largest release in its history. Prior to this its largest release was 129 terabytes and this release also includes global ortho photographs as well.. This release includes images covering. ...
BACKGROUND AND RATIONALE. UNICEF Office of Innovation is hiring a specialist on satellite imagery processing and machine learning to join our Technology and Data Science Team. We are looking for motivated Master Degree or PhD that can support various projects that make use of satellite images to better understand the world we live, to improve our responses to children and youth. Satellite imagery provide important information from places that are not connected that may allow UNICEF to reach the most disfavored population.. We also have a small venture fund - the UNICEF Innovation Fund - which provides resources to quickly assess, fund and scale companies, teams, and ideas that have been developed in new and emerging markets. The Innovation Fund supports the generation of open source, public goods that address the most pressing challenges facing children. As a subject matter expert, you will guide and evaluate the projects that involve satellite imagery and machine learning that are part of this ...
COMMON ITEM COMMON ITEM : CONSULT Function (BCM - COMMON ITE APPLICATION ITEM CONSULT performs the following functions via CAN communication with BC SYSTEM APPLICATION BCM can perform the following functions. INT LAMP INT LAMP : CONSULT Function (BCM - INT LAMP) DATA MONITOR ACTIVE TE ... ...
Hawksbill Turtle with Satellite tag (Eretmochelys Imbricata) for monitoring MAR Alliance Lighthouse Reef Atoll Belize Central America
Welcome to the RU COOL satellite data image archive! On this web site you will find all of the available satellite data products we offer to research, industry, education and the general public. Satellite data are collected with SeaSpace L-Band and X-Band satellite dishes, both of which are on the top of the Institute of Marine and Coastal Sciences building on Cook Campus within the New Brunswick Campus of Rutgers, The State University of New Jersey.. ...
The findings were published this month in the journal Biogeosciences and presented at a news briefing on May 28th.. Single-celled phytoplankton fuel nearly all ocean ecosystems, serving as the most basic food source for marine animals from zooplankton to fish to shellfish. In fact, phytoplankton account for half of all photosynthetic activity on Earth. The health of these marine plants affects commercial fisheries, the amount of carbon dioxide the ocean can absorb, and how the ocean responds to climate change.. Over the past two decades, scientists have employed various satellite sensors to measure the amount and distribution of the green pigment chlorophyll, an indicator of the amount of plant life in the ocean. But with the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASAs Aqua satellite, scientists have now observed red-light fluorescence over the open ocean. Chlorophyll gives us a picture of how much phytoplankton is present, says Scott Doney, a marine chemist from the ...
Cloud properties retrieved from satellite data are used to diagnose aircraft icing threat in single layer and multilayered ice-over-liquid clouds. The algorithms are being applied in real time to the Geostationary Operational Environmental Satellite (GOES) data over the CONUS with multilayer data av
Oakland,Calif., April 8, 2021: Zesty.ai, a leader in climate risk analytics powered by Artificial Intelligence (AI), and the Insurance Institute for Business & Home Safety (IBHS) today released new research on how fuel management impacts destruction rates from wildfires. They found property owners who clear vegetation from the perimeter of their home or building can nearly double their structures likelihood of surviving a wildfire. Zesty.ai, in conjunction with, IBHS studied more than 71,000 properties involved in wildfires between 2016 and 2019 to assess the relationship between vegetation, buildings, and property vulnerability. To do this, Zesty.ai leveraged a combination of computer vision and AI to analyze high resolution satellite and aerial imagery of the properties that fell within the wildfire perimeter, which allowed them to determine what effects a propertys physical environment had on its likelihood of survival. They found buildings with a high amount of vegetation within 5 feet of ...
Degree granting institution Delft University of Technology. Date 2018-01-26. Abstract Nitrogen oxides (NOx) are important air pollutants and play a crucial role in climate change. NOx emissions are important for chemical transport models to simulate and forecast air quality. Up-to-date emission information also helps policymakers to mitigate air pollution. In this thesis, we have focused on providing better NOx emission estimates with the DECSO (Daily Emission estimates Constrained by Satellite Observations) inversion algorithm applied to satellite observations. DECSO is a fast algorithm, which enables daily emissions estimates as soon as the satellite observations are available. Satellite-derived emissions reveal more specific information on the location and strength of sources than concentration observations. The monthly and yearly variability in emissions are well captured. This is demonstrated by our monitoring of the effect of air quality regulations on emissions during events like the 2014 ...
Earlier this week, Google announced that it upgraded the satellite imagery on Google Maps and Google Earth with data collected ...
Forest Satellite Images: Planet provides comprehensive global insight and data to ensure sustainable land use and profitable forestry across regions.
Principles of radiative transfer and satellite sensors and systems; visual, infrared and microwave radiometry, and radar systems; application of satellite remotely-sensed data in the measurement of atmospheric and oceanic variability. Prerequisites: Undergraduate physics and differential/integral calculus; ordinary differential equations and MR3480 or consent of instructor.. OC3522 Remote Sensing of the Atmosphere and Ocean/Laboratory (4-2) As Required. Same as OC3520 plus laboratory sessions on the concepts considered in the lecture series. Prerequisites: Same as OC3520.. OC3570 Operational Oceanography and Meteorology (2-4) As Required. Experience at sea acquiring and analyzing oceanographic and atmospheric data using state-of-the-art instrumentation. Integration of satellite remote sensing and other operational products with in-situ data. Includes survey of instrumentation, pre-cruise planning, operations at sea, and post-cruise analysis. Prerequisites: OC3240, MR3220, or consent of ...
Principles of radiative transfer and satellite sensors and systems; visual, infrared and microwave radiometry, and radar systems; application of satellite remotely-sensed data in the measurement of atmospheric and oceanic variability. Prerequisites: Undergraduate physics and differential/integral calculus; ordinary differential equations and MR3480 or consent of instructor.. OC3522 Remote Sensing of the Atmosphere and Ocean/Laboratory (4-2) As Required. Same as OC3520 plus laboratory sessions on the concepts considered in the lecture series. Prerequisites: Same as OC3520.. OC3570 Operational Oceanography and Meteorology (2-4) As Required. Experience at sea acquiring and analyzing oceanographic and atmospheric data using state-of-the-art instrumentation. Integration of satellite remote sensing and other operational products with in-situ data. Includes survey of instrumentation, pre-cruise planning, operations at sea, and post-cruise analysis. Prerequisites: OC3240, MR3220, or consent of ...
Principles of radiative transfer and satellite sensors and systems; visual, infrared and microwave radiometry, and radar systems; application of satellite remotely-sensed data in the measurement of atmospheric and oceanic variability. Prerequisites: Undergraduate physics and differential/integral calculus; ordinary differential equations and MR3480 or consent of instructor.. OC3522 Remote Sensing of the Atmosphere and Ocean/Laboratory (4-2) As Required. Same as OC3520 plus laboratory sessions on the concepts considered in the lecture series. Prerequisites: Same as OC3520.. OC3570 Operational Oceanography and Meteorology (2-4) As Required. Experience at sea acquiring and analyzing oceanographic and atmospheric data using state-of-the-art instrumentation. Integration of satellite remote sensing and other operational products with in-situ data. Includes survey of instrumentation, pre-cruise planning, operations at sea, and post-cruise analysis. Prerequisites: OC3240, MR3220, or consent of ...
Abstract. In a rapidly changing world, there is an ever-increasing need to monitor the Earth’s resources and manage it sustainably for future generations. Earth observation from satellites is critical to provide information required for informed and timely decision making in this regard. Satellite-based earth observation has advanced rapidly over the last 50 years, and there is a plethora of satellite sensors imaging the Earth at finer spatial and spectral resolutions as well as high temporal resolutions. The amount of data available for any single location on the Earth is now at the petabyte-scale. An ever-increasing capacity and computing power is needed to handle such large datasets. The Google Earth Engine (GEE) is a cloud-based computing platform that was established by Google to support such data processing. This facility allows for the storage, processing and analysis of spatial data using centralized high-power computing resources, allowing scientists, researchers, hobbyists and ...
The international human rights organization says that the photos show the towns of Baga and Doron Baga in northeast Nigeria, before and after the attacks. The images were taken on Jan. 2 and Jan. 7 of this year. Boko Haram fighters seized a military base in Baga on Jan. 3 and, according to witnesses, killed hundreds of civilians in cold blood in the ensuing days.. Residents have not been able to return to bury the dead, let alone count their number. But through these satellite images combined with graphic testimonies a picture of what is likely to be Boko Harams deadliest attack ever is becoming clearer, Daniel Eyre, Amnesty Internationals Nigeria researcher, told The Independent. Amnesty International calculates that 3,700 homes and other structures were demolished by the Islamic militants over the course of the attack. Read more ...
In an article for the LSE Impact Blog, Nuffield Department of Clinical Medicine researcher explains how satellite images can help identify hard-to-reach populations .
Satellite images suggest Pyongyang was complying with a pledge made to President Donald Trump in June. The site is believed to have played a key role in North Koreas intercontinental ballistic missile program.
COSTA, Alexandre Araujo; CAMPOS FILHO, Mucio Costa; SANTOS, Antonio Carlos Santana dos and OLIVEIRA, José Carlos Parente de. Characteristics of ice crystals observed in a cloud system over the Amazon during the TRMM-LBA experiment. Rev. bras. meteorol. [online]. 2012, vol.27, n.2, pp.139-151. ISSN 0102-7786. http://dx.doi.org/10.1590/S0102-77862012000200003.. During the months of January and February 1999, the TRMM/LBA (Tropical Rainfall Measuring Mission/Large Scale Biosphere-Atmosphere Experiment in Amazonia) campaign took place, in which microphysical properties of deep convective clouds were investigated. The experiment was part of an international effort to calibrate TRMM satellite sensors for precipitation, radiation and atmospheric electricity studies. The data used in the present work were collected by instruments on board North Dakota Universitys Citation II aircraft, including data from a set of spectrometric probes that measured concentration and size of ice crystals, with ...
Earth Imaging Journal is a bimonthly magazine covering a range of earth observation and geospatial technologies and applications.
Spacenet Inc., one of the worlds leading providers of advanced satellite networking services for US based enterprise and government customers, today introduced its new ION(TM) instant VSAT communications solution. The self-contained and ruggedized field kit enables rapid deployment of complete converged communications via satellite (VSAT) for emergency response teams and remote industrial operations such as oil rigs, mines, or construction sites. ION is available immediately with Spacenets commercial grade Connexstar(TM) service, offering a turn-key voice, video, and broadband data solution. ION can also be deployed as part of a custom developed satellite network. Spacenet currently offers similar transportable communications solutions to a number of government organizations including a law enforcement agency, hospital association, department of transportation and port authority. Designed with emergency response personnel in mind, Spacenets ION is easily carried and deployed by one or two ...
Billfishes are genetically and morphologically distinct enough from scombroids to merit placement in a separate suborder, Xiphioidei. Two extant families are usually recognized: Xiphiidae (swordfish, Xiphias) and Istiophoridae, currently containing three genera, Istiophorus (sailfishes), Makaira (marlins), and Tetrapturus (spearfishes, white, and striped marlins). Phylogenetic analyses of molecular data from mitochondrial and nuclear gene sequences (mitochondrial control region, ND2, 12S, and nuclear MN 32 regions) show a different picture of relationships. Makaira is not monophyletic: blue marlin cluster with sailfish and placement of black marlin is un-stable. Accepting the molecular phylogeny gives two possible classifications: (1) two genera: blue marlin + sailfish (as Istiophorus) and all the rest (as Tetrapturus), or (2) five genera: blue marlin (Makaira), sailfish (Istiophorus), black marlin (Istiompax), striped and white marlin (Kajikia), and four spearfishes (Tetrapturus). We prefer the ...
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Upstream information arriving through a user terminal in a satellite link is efficiently scheduled through a modified Demand Assigned Multiple Access (DAMA) algorithm such that data packets arriving at the user terminal are concatenated to form a larger frame for transmission and the concatenated packet is held in a first queue disposed ahead of a second queue, where the data in the second queue cannot be modified (typically a hardware queue), sufficient to allow the second queue to be emptied. In a specific embodiment, all packets arriving at the user terminal since a prior piggyback request are concatenated so that all currently known packets (up to a preselected limit) are accounted for by each succeeding piggyback request. Since it is desirable to concatenate all packets that arrive at the user terminal since the last piggyback request, the piggyback request according to the invention covers all currently known packets (up to the preselected limit) in the user terminal. The held-back packets
SATCOM in Rajasthan: Satellite Communication Network (SATCOM) in Rajasthan utilize potentials of Satellite Communication in training and extension activities of line departments, Government of Rajasthan had decided to establish SATCOM in collaboration with Development and Educational Communication Unit (DECU), Indian Space Research Organization (ISRO), Government of India, Ahmedabad. Science and Technology Department is the Nodal Agency for it. For effective utilization and operation a Coordination Committee under Chairmanship of Chief Secretary with Principal Secretaries / Secretaries of various line departments as Members was formed. Under the network. Integrated Uplink Station (HUB) has been established and operational at IGPRS, Jaipur providing connectivity to Edusat, Telemedicine and Gramsat. Two way interactive terminals (two way audio and video ) Satellite Interactive Terminals (SIT) have been installed and tested at 32 Zila Parishads. One way video and two way audio, Receive Only ...
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Macroscopic images are kind of environments in which complex patterns are present. Satellite images are one of these classes where many patterns are present. This fact reflects the challenges in detecting patterns present in this kind of environments. SPOT1b satellite images provide valuable information. These images are affordable and can be applicable in wide applications. This paper demonstrates an approach to generate detection plane that visualize patterns present in the satellite image. The detection plane uses rough neural network to provide optimal representation in backpropagation architecture. Rough set theory combined with multilayer perceptron constitutes the rough neural network. Reduction in the feature dimensionality via the rough module improves the recognition ability of the neural network. It is found that the rough module provides the neural network with optimal features. The ability of the neural network to efficiently detect and visualize the pattern stems from a developed
This chapter describes how to set a scale and measure distances and areas on satellite images. Using ImageJ, a freely available image analysis program that runs on most operating systems, users set the spatial calibration of an image, then select... (View More) and measure distances and areas on it. The measurement results are reported in real-world units. The technique is most useful and accurate for nadir view (straight down) images. In this chapter, users examine satellite images of the Aral Sea, which has shrunk dramatically since 1960 because the rivers that flow into it have been tapped for irrigation. Users access satellite images of the region, then set a scale and measure the width of the sea each year. On another set of images, they highlight areas that represent water and measure them to see how these areas of the sea changed. This chapter is part of the Earth Exploration Toolbook, which provides teachers and/or students with direct practice for using scientific tools to analyze Earth ...
Table of Contents: On satellite images of the Selva and thickening plots + DETERIORATING Chiapas ricardo dominguez ,[email protected], Barcelona: imaginative, festive, subversive...and successful ricardo dominguez ,[email protected], ------------------------------ Date: Fri, 29 Mar 2002 08:44:45 -0500 From: ricardo dominguez ,[email protected], Subject: On satellite images of the Selva and thickening plots + DETERIORATING Chiapas [ [[ WE NEED OBSERVERS. IF YOU HAVE A COUPLE OF WEEKS AND YOU CAN GET DOWN HERE OR YOU HAVE A TRUSTWORTHY FRIEND WHO CAN DO THE SAME LET ME KNOW ASAP!!!!!! ]]] Date: Tue, 26 Mar 2002 09:02:31 +1000 To: [email protected] Subject: On satellite images of the Selva and thickening plots Originally published in Spanish by La Jornada _______________________ Translated by irlandesa La Jornada Monday, March 25, 2002. US, World and Transnational Agencies Want to Clear Indigenous Out of Montes Azules Hermann Bellinghausen, correspondent. Northern Selva Lacandona, Chiapas. ...
Case in point: In 2011, the state of Alabama rolled out its GSSNet/Alert Studio CAP-EAS system, a state-of-the-art digital emergency communications system powered by Hughes that disseminates alerts in multiple formats.. Developed and operated by Global Security Systems (GSS), the system includes both its Alert Studio message origination portal and GSSNet satellite data delivery capability, leveraging a combination of the Hughes nationwide satellite service and terrestrial technologies to disseminate messages.. In addition, Alabama has adopted the federal governments Common Alert Protocol (CAP), a digital XML-based data format for sharing and distributing emergency information. A CAP system enables alerts via multi-media applications, including road signs, cell phones, smart phones, reverse 911, TV, and radio. Since the CAP message is digital, audio quality is vastly improved. And because satellite communications transmits to everyone at the same time, state and local governments no longer need ...
Gillies R.R., Carlson T.N., Cui J., Kustas W.P., Humes K.S. A verification of the triangle method for obtaining surface soil water content and energy fluxes from the remote measurements of the Normalised Difference Vegetation Index (NDVI) and surface radiant temperature. International Journal of Remote Sensing, 1997, № 18, p.p. 3145 - 3166 ...
The Cairngorms National Park Authority has joined forces with Scottish Natural Heritage to co-sponsor a new CivTech challenge aimed at finding a creative and innovative technology-based solution to the problem of finding disappearing satellite tagged raptors. As youll be aware, satellite-tagged raptors are disappearing in Scotland and England with increasing frequency. There was a time,…
AMHERST, Mass. - Using satellite images from space along with volunteers who collect measurements and samples from lakes and ponds, University of Massachusetts researchers are developing a cost-effective way to monitor water quality and weed growth in the states waters. UMass is sharing its findings with the state Department of Environmental Management (DEM), and the U.S.
In this Earth Exploration Toolbook chapter, students select, explore, and analyze satellite imagery. They do so in the context of a case study of the origins of atmospheric carbon monoxide and aerosols, tiny solid airborne particles such as smoke from forest fires and dust from desert wind storms. They use the software tool ImageJ to animate a year of monthly images of aerosol data and then compare the animation to one created for monthly images of carbon monoxide data. Students select, explore, and analyze satellite imagery using NASA Earth Observatory (NEO) satellite data and NEO Image Composite Explorer (ICE) tool to investigate seasonal and geographic patterns and variations in concentration of CO and aerosols in the atmosphere.. ...
Google Earth has received so much press coverage that many users will appreciate that it is one of the coolest applications to download. In brief, it is a feature-laden 3D virtual globe, map and geography browser which lets users zoom in on their world with fantastic detail. View satellite imagery, maps, terrain, 3D buildings and even explore galaxies in the sky. This application allows the exploration of rich geographical content, save toured places and share with others. The software maps the earth by the superimposition of images obtained from satellite imagery, aerial photography and GIS 3D globe. Google Earth is undoubtedly a very impressive application, and it is extremely hard not to admire the wealth of features that it offers. Its satellite images are unrivaled, it provides useful and accurate statistical information, and the software has many practical benefits, such as helping to find locations and give driving directions. In terms of functionality, this application earns our highest ...
Research Team: Julien Brun, Prabhakar Shrestha and Ana P. Barros. Project description:. MODIS satellite images show that the Himalayas act as a barrier for the aerosols being transported from the Indian Gangetic Plains (IGP). This accumulation of aerosols during the pre-monsoon season not only affects the radiation budget, but can also have a profound impact on the evolution of orographically induced clouds and the local hydrological cycle.. The coarse spatial resolution (10km*10km to reduce signal noise ratio) of MODIS aerosol products cannot resolve the effects of local terrain in the spatial organization of the aerosol plumes, which is critical for the study of aerosol-cloud rainfall interactions in this region. However, high resolution images from MODIS visible channels have the ability to show the organization of the aerosol plumes in the Plains that penetrate along north-south river valleys from the IGP to the Tibetan Plateau. The developed methodology aims to use MODIS visible channels to ...
DigitalGlobe, CosmiQ Works, NVIDIA and Amazon Web Services have collaborated to develop a web-based repository of satellite imagery and training data that could support the development of machine learning and deep learning algorithms. DigitalGlobe said Thursday the SpaceNet repository provides open access to curated, high-resolution satellite imagery that includes the companys multi-spectral satellite imagery and 200,000 curated building …. Read More » ...
Satellite-derived optical properties are compared to in situ mooring and ship-based measurements at a coastal site. Comparisons include remote sensing reflectance (Rrs), chlorophyll concentration (Chl) using two different Chl algorithms, and spectral absorption [apg(λ)] and backscattering coefficients [bb(555)] using three different bio-optical algorithms. For mooring/shipboard comparisons, we observed mean relative errors of 70.5%/-3.8% (SeaWiFS OC4v4), -21.4%/-49.3% (SeaWiFS Stumpf), 109.5%/13.4% (MODIS OC3m) and 0.5%/-48.9% (MODIS Stumpf) for Chl. For satellite-derived and mooring comparisons of apg(412), we found mean relative errors of -69.4% (-67.1%), -52.6% (-48.9%), and -62.7% (-65.4%) for the Arnone, GSM, and QAA algorithms for SeaWiFS (MODIS), respectively. Mean relative errors of 21.3%, 19.9%, and 16.5% were found between SeaWiFS-derived (Arnone, GSM, and QAA algorithms, respectively) and moored bb(555) measurements. Discrepancies in Rrs at blue wavelengths are attributed to the ...
Example of the Landsat 7 ETM+ Collection 2 level-2 science products. Left: Landsat 7 level-2 surface reflectance image. Right: Landsat 7 level-2 surface temperature image. The data was acquired on August 19, 2020 (path 179 row 28). ...
LAPAN telah menjadi penyedia citra resolusi tinggi untuk kebutuhan nasional. Untuk itu lembaga pemerintah diinstruksikan untuk membeli citra dengan lisensi Pemerintah Indonesia yang difasilitasi oleh LAPAN. Data tersebut kemudian dapat dimanfaatkan oleh semua kementerian, lembaga, pemerintah daerah, dan perguruan tinggi secara gratis dengan lisensi pemerintah. Saat ini, LAPAN sudah mampu menerima citra satelit resolusi sangat tingi secara langsung. ...
Abstract: In this paper, we develop and illustrate a prototype incentive system for promoting rapid reduction of forest clearing in tropical countries. Our proposed Tropical Forest Protection Fund (TFPF) is a cash-on-delivery system that rewards independently monitored performance without formal contracts. The system responds to forest tenure problems in many countries by dividing incentive payments between national governments, which command the greatest number of instruments that affect forest clearing, and indigenous communities, which often have tenure rights in forested lands. The TFPF incorporates both monetary and reputational incentives, which are calculated quarterly. The monetary incentives are unconditional cash transfers based on measured performance, while the reputational incentives are publicly disclosed, color-coded performance ratings for each country. The incentives include rewards for: (1) exceeding long-run expectations, given a countrys forest clearing history and ...
A improved method named vegetation normalized difference water index (VNDWI) has been proposed in this paper based on NEW of Xiao Yun-fang(2010), which uses Band 1 and Band 7 and the normalized difference vegetation index (NDVI) in TM5 imagery to construct the VNDWI. This method has been tested in the Yangtze River Basin, and compares the results with other methods is the best. Due to the reflection characteristics differences between water and cloud, NEW method cannot distinguish the differences effectively. However, joins the NDVI parameter, VNDWI can enhance the difference between water and cloud, so it can remove clouds and its shadow noise from water body information without using complicated procedures, which is particular difficult work should be done in pretreatment.
Software to track the satellites to indicate when they will be overhead, and optionally track them by driving the rotor. Its also necessary to adjust the receive frequency to account for doppler shift. An excellent program is MacDopplerPro from Dog Park Software. Other than the above items, receiving the images is similar to receiving HF weather fax transmissions, except that you have to continuously re-tune the radio, or have it controlled by your computer! Also, a given satellite usually only makes one or two passes overhead each morning and evening. Each pass usually lasts 10 to 15 minutes at the most. ...
Amazonas 3 is a Commercial Communications Satellite that was built by Space Systems/Loral, Palo Alto, and will be operated by Hispasat. It is based on SS/Ls LS-1300 modular satellite platform that provides a high power capability to facilitate the most powerful communication payloads flown to date. The satellite has a liftoff mass of approximately 6,254 Kilograms. Two solar arrays and onboard batteries provide power to the satellites communications payload. The vehicle is three-axis-stabilized and features a propulsion system for apogee maneuvers and stationkeeping in Geostationary Orbit. Amazonas 3 is equipped with 33 Ku-Band and 19 C-Band transponders that will provide communication coverage to Brazil, Latin America and the United States. Nine Ka-Band spot beams are provided by the satellite which will cover Latin America. Amazonas 3 provides expanded internet access, television broadcasting, corporate fixed and mobile telephone services, tele-education and tele-medicine services and ...