Abstract. The Sun is the fundamental energy sources of the Earths climate and therefore its variations can contribute to natural climate variations. In the present work we study the variability of ice winter severity index in the Baltic Sea since the 15th century and its possible connection with solar activity, based in a new method for finding and measuring amplitude-phase cross-frequency coupling in time series with a low signal/noise ratio, we suggests that the ice winter severity index in the Baltic Sea is modulated by solar activity and solar motion in several frequency bands during the last 500 yrs. According to our model a strong coupling between the decadal periodicity in the ice winter severity index time series and the secular periodicity of solar activity is present. We found that the ice winter severity index is strongly modulated by solar activity at the decadal periodicity. We also found that the 180 year periodicity of the Barycentre motion modulates the amplitudes of the decadal ...
As well known the influence on Earth is not determined by the solar radiation parameters but is determined by parameters of absorbed radiation. Therefore the correlation mechanism of solar activity and seismic activity has not been fully defined. First-ever, on the bursts of solar activity, reacts ionosphere. The results of the study [19] show some unusual perturbations observed in 1-25 days before and 2-3 days after the main shock of every earthquake indicating a clear seismo-ionospheric link and may be used as earthquake precursors. Such subionospheric plasma irregularities have been observed by satellites prior to seismic activity electric and magnetic field perturbations in the upper ionosphere [20]. The final results showed that the ionospheric vertical total electron content around the epicenter of earthquake in China (May 12, 2008), increased obviously 9 days before the earthquake, decreased significantly 6 days before the earthquake and increased strikingly 3 days before the earthquake. ...
After 18 years and nearly three complete orbits around the sun, Ulysses, the interplanetary space probe that provided scientists with a more complete understanding of the solar wind and the solar activity cycle, was turned off. Nathan Schwadron, an associate professor of astronomy, can discuss the space probes solar wind observations, which led scientists to […]. ...
Sunspots and active regions are two of the many manifestations of the solar magnetic field. This field plays an important role in causing phenomena such as coronal mass ejections, flares, and coronal heating. Therefore, it is important to study the origin of sunspots and active regions and determine the underlying mechanism which creates them. It is believed that flux tubes rising from the bottom of the convection zone can create sunspots. However, there are still unanswered questions about this model. In particular, flux tubes are expected to expand as they rise, hence their strength weakens and some sort of reamplification mechanism must complement this model to match the observational properties of sunspots. To compensate for the absence of such an amplification mechanism, the field strength of the flux tubes, when at the bot- tom of the convection zone, must be far stronger than present dynamo models can explain.. In the last few years, there has been significant progress toward a new model ...
Sunspot activity is more intense now than at any point in the last 8,000 years, according to researchers at the Max Planck Institute in Germany. The solar scientists have constructed an 11,000 years record of solar activity based on tree ring data, and discovered that the last 70 years have been particularly spot-filled.. However, the results should not cause alarm, the scientists say, because 8,000 years ago there was a period of similar intensity, suggesting that the sun naturally cycles through more and less busy times. Sami Solanki, the scientist who led the research, says the sun will probably calm down again in the next few decades.. To track solar activity using trees, the researchers had to go looking for the presence of particular isotopes, like carbon14 and beryllium-10, that are formed in the atmosphere when cosmic rays - radiation from deep space - impact the planet. The sun deflects much of the cosmic radiation that would otherwise smash into the planet, but when solar activity is ...
The largest sunspot of the decade has shown up on the Sun. You can see the sunspot in the upper, right hand part of the Sun. Though it doesnt look like much, this area is equivalent to the surface area of 14 Earths!. Already, flares and coronal mass ejections (CMEs) have shot from this sunspot. These flares and CMEs released March 28th-29th are headed towards Earth. This means there may be increased auroral activity and possibly even radio or power blackouts this weekend!. Stay tuned to Spaceweather.com for updates ...
How to Get Rid of Sunspots. Sunspots appear as flat, brown spots on your skin and are caused by direct, prolonged exposure to ultraviolet (UV) rays. The spots can appear at any age and are usually not harmful. Sunspots affect people with...
In this work, we take advantage of 11 different sunspot group, sunspot, and active region databases to characterize the area and flux distributions of photospheric magnetic structures. We find that, when taken separately, different databases are better fitted by different distributions (as has been reported previously in the literature). However, we find that all our databases can be reconciled by the simple application of a proportionality constant, and that, in reality, different databases are sampling different parts of a composite distribution. This composite distribution is made up by linear combination of Weibull and log-normal distributions-where a pure Weibull (log-normal) characterizes the distribution of structures with fluxes below (above) 10{sup 21}Mx (10{sup 22}Mx). Additionally, we demonstrate that the Weibull distribution shows the expected linear behavior of a power-law distribution (when extended to smaller fluxes), making our results compatible with the results of Parnell et ...
The objective of this study was to assess impacts of air temperature, barometric pressure and geomagnetic activity on hospitalizations with myocardial infarctions and brain strokes. We studied 2,833 myocardial infarctions and 1,096 brain strokes registered in two Moscow hospitals between 1992 and 2005. ….The number of myocardial infarctions decreased with temperature, displayed a U-shaped relationship with pressure and variations in pressure, and increased with geomagnetic activity. The number of strokes increased with temperature, daily temperature range and geomagnetic activity. Detrimental effects on strokes of low pressure and falling pressure were observed. Relative risks of infarctions and strokes during geomagnetic storms were 1.29 (95 % CI 1.19-1.40) and 1.25 (1.10-1.42), respectively. The number of strokes doubled during cold spells. The influence of barometric pressure on hospitalizations was relatively greater than the influence of geomagnetic activity, and the influence of ...
The Sun has a magnetic field that varies across the surface of the Sun. Its polar field is 1-2 gauss (0.0001-0.0002 T), whereas the field is typically 3,000 gauss (0.3 T) in features on the Sun called sunspots and 10-100 gauss (0.001-0.01 T) in solar prominences.[1]. The magnetic field also varies in time and location. The quasi-periodic 11-year solar cycle is the most prominent variation in which the number and size of sunspots waxes and wanes.[16][113][114]. Sunspots are visible as dark patches on the Suns photosphere, and correspond to concentrations of magnetic field where the convective transport of heat is inhibited from the solar interior to the surface. As a result, sunspots are slightly cooler than the surrounding photosphere, and, so, they appear dark. At a typical solar minimum, few sunspots are visible, and occasionally none can be seen at all. Those that do appear are at high solar latitudes. As the solar cycle progresses towards its maximum, sunspots tend form closer to the solar ...
As the Sun enters a period of low solar activity over the next 50 years, new research has calculated the probability of unusually cold winter temperatures occurring in the UK.. Last year, the same group of researchers, from the University of Reading, linked colder winters in Europe to low solar activity and predicted that the Sun is moving into a particularly low period of activity, meaning the UK will experience more cold winters in the future potentially similar to those experienced in the Maunder minimum at the end of the 17th century.. The new research, published today, Tuesday 5 July 2011, in IOP Publishings journal Environmental Research Letters, supports recent suggestions that sunspot activity is waning, and goes further, using the behaviour of the Sun over the last 9300 years to predict the probabilities of future solar changes.. Over the next 50 years, the researchers show that the probability of the Sun returning to Maunder minimum conditions is about 10 per cent, raising the ...
A solar flare is a magnetic storm on the Sun which appears to be a very bright spot and a gaseous surface eruption such as in the above photograph. Solar flares release huge amounts of high-energy particles and gases that are tremendously hot. They are ejected thousands of miles from the surface of the Sun.. According to Mitch Battros - Earth Changes Media, One of the best known prophecies/predictions of our Mayan elders is the message of a changing paradigm of our era. In the words of the Maya, it is said that we are now in a time of change and conflict. The change is coming from the outside in the way of weather, natural phenomena, celestial disturbance (sun flares) and manmade self-inflicted trauma. The conflict comes from the inside in the way of personal challenge, grief, bewilderment, depression, anxiety, and fear. It is said we are at the cross roads. A time of choosing a new path, deciding on a new self and community direction, venturing into the unknown, finding our true ...
The sun goes through a natural solar cycle approximately every 11 years. The cycle is marked by the increase and decrease of sunspots which are visible dark regions on the suns surface and cooler than surroundings. The greatest number of sunspots in any given solar cycle is designated as the solar maximum and the lowest number is referred to as the solar minimum phase. We are currently more than seven years into Solar Cycle 24 and it appears the solar maximum of this cycle was reached in April 2014 during a spike in activity (current location indicated by arrow). Going back to 1755, there have been only a few solar cycles in the previous 23 that have had a lower number of sunspots during its maximum phase. The peak of activity in April 2014 was actually a second peak in solar cycle 24 that surpassed the level of an earlier peak which occurred in March 2012. While many solar cycles are double-peaked, this is the first one in which the second peak in sunspot number was larger than the first ...
Scientists combine various techniques to study space weather. Earth-based and orbiting telescopes constantly observe the Sun in many different wavelengths. Both satellites and ground-based instruments contribute readings of space weather features such as particle densities, magnetic field strengths, and radiation intensities. Scientists develop complex mathematical models based on the laws of physics to predict behaviors of space weather systems. Space physicists have also developed metrics, such as sunspot counts, to quantitatively describe variations in space weather.. Because of the complexity of space weather systems, scientists often use models to try to understand and predict the systems. Some models describe the Sun, others interplanetary space, and still others cover the Earths magnetosphere or its upper atmosphere. Sophisticated computer software crunches the numbers generated by these models so scientists can compare their predictions with observed events. We have only been making ...
At present, the Sun is very active - a surface covered with sunspots, frequent ejections of matter and a stronger solar wind blowing towards Earth. In the meantime, however, radiation exposure at aircraft cruising altitudes has reduced.
The smart money is on the level of solar contribution being somewhere between the two extremes. In other words, both solar activity and industrial gases play a role. There is credible scientific work that ascribes up to a third of current warming to solar influence. Studies show that the Earths temperature mirrored solar activity until the 1980s. Then the number of sunspots stabilised but the temperature continued to rise. In other words, something overtook the Sun as the primary driver of the Earths temperature. That is generally thought to be industrial gases. Now the test can be made. It is time for all sides to put away the rivalry and begin to work together. Observations must be made, experiments performed and all data must be published, not cherry-picked. This golden opportunity to reach consensus must not be squandered. Above all, we must not let any downturn in temperatures be used as an excuse by reluctant nations to wriggle out of pollution controls. Just as certainly as the solar ...
We know enough about the structure of the Sun that we can predict the travel path and travel time of an acoustic wave as it propagates through the interior of the Sun, said Junwei Zhao, a senior research scientist at Stanfords Hansen Experimental Physics Lab. Travel times get perturbed if there are magnetic fields located along the waves travel path. By comparing and measuring millions of pairs and points, researchers are able to pinpoint areas where sunspots are likely to happen. What they have discovered is larger spots rise to the surface faster than smaller ones… a prediction which can be made in approximately 24 hours. For less ominous appearances, lead times increase to up to two days. Researchers have suspected for a long time that sunspot regions are generated in the deep solar interior, but until now the emergence of these regions through the convection zone to the surface had gone undetected, Ilonidis said. We have now successfully detected them four times and tracked them ...
Learn about the causes of sunspots on your skin, including natural home remedies to treat sunspots on your face, hands, arms, and other skin areas.
Susanlacerra.com DA: 16 PA: 50 MOZ Rank: 82. Schumann Resonance & Inspired Energy Schumann Resonance: October 20, 2020 Inspired Energy: Our Hopes and Dreams, I AM the New Earth 2020) by Space Observing System (see No Data video in the Beginners Playlist for more info on Black lines and spaces in the Schumann charts.) - May be hard for some people to think mentally and ...
The solar dynamo is known to be associated with several periodicities, with the nearly 11/22 yr cycle being the most pronounced one. Even though these quasiperiodic variations of solar activity have been attributed to the underlying dynamo action in the Suns interior, a fundamental theoretical description of these cycles is still elusive. Here, we present a new possible direction in understanding the Suns cycles based on resonant nonlinear interactions among magnetohydrodynamic (MHD) Rossby waves. The WKB theory for dispersive waves is applied to magnetohydrodynamic shallow-water equations describing the dynamics of the solar tachocline, and the reduced dynamics of a resonant triad composed of MHD Rossby waves embedded in constant toroidal magnetic field is analyzed. In the conservative case, the wave amplitudes evolve periodically in time, with periods on the order of the dominant solar activity timescale (∼11 yr). In addition, the presence of linear forcings representative of either ...
This means that 2019 has now surpassed the 269 spotless days observed in 2008 - the previous space age record low for spotless days in a calendar year. To find a year with more blank suns, you have to go back to 1913 which had 311 spotless days (or 85%). And looking forward, 2020 is forecast by many to threaten that all-time 1913 record, as the sun sinks ever-further into its next grand solar minimum cycle:. ...
Study examines landfalling tropical cyclones along the eastern Pacific coast between the 16th and 20th centuries and finds the most persistent cycle lasted ~ 12 years and coincided with the ~11-12 year solar cycle. ...
First of all solar activity has been very strong up to year 2005, not year 1985, so that is the first false fact ,that is talked about in this article. Secondly the writer of this article has left out many significant correlations between solar activity and items it effects on earth ,that in turn ,control earths climatic system.. HE NEEDS TO DO MUCH MORE HOMEWROK IN THIS AREA.. Thirdly, the lag times are greater then 10 years, and are more related to the solar magnetic cycle of 22 years, as far as temperature response.. Fourth , the CO2 man made global warming theory is a bunch of BS , and the global models they use to show this theory is correct, have been proven wrong ,on several fronts. WHERE THE MODELS HAVE FAILED(I will mention some). 1. The models said the atmospheric circulation would be evolving into an ever increasing +AO ,the reality is the atmospheric circulation has been evolving into an ever increasing -AO.. 2. DROUGHTS IN AUSTRALIA,reality is floods in Austrialia.. 3. The ...
With the end of 2012 in sight I thought I would give you a quick summary of how the Piers Corbyn Earthquake and Volcano trial went this year. I tried to monitor EQs from a Magnitudes of 6.5+,...
Are you experincing : Nervousness, anxiousness, worrisome, jittery, dizzy, shaky, irritable, lethargic, exhausted, have short term memory problems and heart palpitations, feel nauseous, queasy, and to have prolonged head pressure and headaches?How about: Time and space appear to on a wobble even more erratically than before. We seem to be losing track of time easily.…
The Royal Astronomical Society, encourages and promotes the study of astronomy, solar-system science, geophysics and closely related branches of science. The RAS organizes scientific meetings in Burlington House, its London HQ, and throughout the country, publishes international research and review journals, recognizes outstanding achievements by the award of medals and prizes, maintains an extensive library, supports education through grants and outreach activities and represents UK astronomy nationally and internationally.
CT Bob (11) Pat-Downs (4) CT Bob (5) Deb (2) Entertaining Angels (18) 123Tagged.com (3) 2-4-6-tribromoanisole (4) 2011 (1) 2012 (100) 2013 (1) 350 (1) 501(c) (3) abortion (7) abstention (1) abuse (2) accident (1) Accord (1) acetaminophen (1) ACORN (66) ACORN Democrats (5) ACORN=Working Families Party (24) ACORN=WPC (2) Adam Lanza (2) Adopt-A-Dog (3) Adopt-A-Pet (6) adoptapet.org (10) Adrienne Perry (1) ads (4) AFFCE (1) Affetto (1) Afghanistan (43) aflatoxin (1) Africa (3) agape (19) agnostic (23) agnostics (30) air travel (2) Al Gore (2) Alaska (1) alcohol pads (12) Alex Kaluta (2) Alexa Kaluta (1) Alexa Rose (1) Alexadra Kaluta (1) Alexandra Kaluta (1) Alexandra Kaluta Broadway Bound (2) alfalfa sprouts (2) Alfonso Robinson (1) aliens (2) Allergies (10) Alternative Med (36) Althouse (1) amazing-animations (1) America (8) American Legion (13) amino acids (2) Amish (1) Andrew Breitbart (1) Andrew McDonald (2) Angela Corey (1) Angela Malizia (1) Angelica Nappi (1) Angels (2) animal ...
The tilt angles of sunspot groups are defined, using the Mount Wilson data set. It is shown that groups with tilt angles greater than or less than the average value (≈ 5 deg) show different latitude dependences. This effect is also seen in synoptic magnetic field data defining plages. The fraction of the total sunspot group area that is found in the leading spots is discussed as a parameter that can be useful in studying the dynamics of sunspot groups. This parameter is larger for low tilt angles, and small for extreme tilt angles in either direction. The daily variations of sunspot group tilt angles are discussed. The result that sunspot tilt angles tend to rotate toward the average value is reviewed. It is suggested that at some depth, perhaps 50 Mm, there is a flow relative to the surface that results from a rotation rate faster than the surface rate by about 60 m/sec and a meridional drift that is slower than the surface rate by about 5 m/sec. This results in a slanted relative ...
Context. Sunspot oscillations are one of the most frequently studied wave phenomena in the solar atmosphere. Understanding the basic physical processes responsible for sunspot oscillations requires detailed information about their fine structure. Aims. We aim to reveal the relationship between the fine horizontal and vertical structure, time evolution, and the fine spectral structure of oscillations in a sunspot umbra. Methods. The high spatial and time resolution data obtained with SDO/AIA for the sunspot in active region NOAA 11131 on 08 December 2010 were analysed with the time-distance plot technique and the pixelised wavelet filtering method. Different levels of the sunspot atmosphere were studied from the temperature minimum to the corona. Results. Oscillations in the 3 min band dominate in the umbra. The integrated spectrum of umbral oscillations contains distinct narrowband peaks at 1.9 min, 2.3 min, and 2.8 min. The power significantly varies in time, forming distinct 12?20 min ...
Dopplergram Sunspot Close-Up - March 29, 2010. Heres the press release:. Dwayne C. Brown. Headquarters, Washington. 202-358-1726. [email protected] Susan Hendrix. Goddard Space Flight Center, Greenbelt, Md.. 301-286-7745. [email protected] RELEASE: 10-091. NASAS NEW EYE ON THE SUN DELIVERS STUNNING FIRST IMAGES. WASHINGTON - NASAs recently launched Solar Dynamics Observatory, or SDO, is returning early images that confirm an unprecedented new capability for scientists to better understand our suns dynamic processes. These solar activities affect everything on Earth.. Some of the images from the spacecraft show never-before-seen detail of material streaming outward and away from sunspots. Others show extreme close-ups of activity on the suns surface. The spacecraft also has made the first high-resolution measurements of solar flares in a broad range of extreme ultraviolet wavelengths.. These initial images show a dynamic sun that I had never seen in more than 40 years of ...
Solar variations have significant influence on the Earths space environment and climate via its magnetic field, irradiation and energetic particles. Long-term and reliable historical datasets of solar and stellar activity indices are crucial for understanding the variations and predicting the future solar cycle. Cosmogenic and radionuclides can extend our knowledge of solar variations back to the Holocene. There are a number of important and hot issues relevant to the evolution of solar activity and variability. These include, how to build up longterm consistent datasets, e.g., sunspot number and solar irradiance, how to realistically reconstruct the physics parameters, e.g., interior convection spectrum and photospheric open flux, based on the records, how to understand the relations among different indices, how to model the solar cycles based on the observed data. Furthermore, the progress in the understanding of the stellar variability and activity cycles helps us to understand the solar ...
The cause of this increase perplexed oceanographers because it was too large to be due to terrestrial effects such as changes in the intensity of the geomagnetic field. Although smaller scale increases were regularly interpreted as indications of increases in solar flare activity, they found it difficult to imagine that the Suns flaring activity would rise so high and persist in this active state for so many millennia. Apparently they were not aware of the superwave theory. Nevertheless the data leave one to the inescapable conclusion that this radiocarbon increase was caused by an extreme elevation in the intensity of cosmic ray radiation striking the Earth. This could have been due to the impact of either superwave cosmic rays or solar flare cosmic rays associated with an extended period of high solar activity. At its height, this event was far more severe and prolonged than the super solar proton event that appears to have precipitated the megafaunal extinction at the end of the ice age and ...
Fullers Earth, popularly known as multani mitti, is probably every Indian girls favourite beauty secret. It works like magic even today. Even though multani mitti is popularly known for brightening your skin, it can also help you eradicate sunspots. Try mixing a few tablespoons of multani mitti with Aloe Vera gel and rose water. Apply all over the affected area and let it stay for fifteen to twenty minutes. Wash off with cold water. Try this remedy three to four times a week to see a change. ...
BIG SUNSPOT TURNS TOWARD EARTH: A new and large sunspot is rapidly growing on the solar disk, temporarily arresting the suns plunge into Solar Minimum. Stretching more than 70,000 km from end to end, the active region numbered AR2665 has more than doubled in size in 24 hours. This makes it an easy target for backyard solar telescopes. So far the growing sunspot has not produced any strong flares, but this could change if its rapid growth continues apace and destabilizes the sunspots magnetic field ...
The top of the conveyor belt skims the surface of the sun, sweeping up the magnetic fields of old, dead sunspots. The corpses are dragged down at the poles to a depth of 200,000 km where the suns magnetic dynamo can amplify them. Once the corpses (magnetic knots) are reincarnated (amplified), they become buoyant and float back to the surface. Presto-new sunspots!. All this happens with massive slowness. It takes about 40 years for the belt to complete one loop, says Hathaway. The speed varies anywhere from a 50-year pace (slow) to a 30-year pace (fast).. When the belt is turning fast, it means that lots of magnetic fields are being swept up, and that a future sunspot cycle is going to be intense. This is a basis for forecasting: The belt was turning fast in 1986-1996, says Hathaway. Old magnetic fields swept up then should re-appear as big sunspots in 2010-2011.. Like most experts in the field, Hathaway has confidence in the conveyor belt model and agrees with Dikpati that the next ...
The effects of the suns internal magnetic fields entering and re-entering the surface of the sun result in sunspots. They typically occur in pairs with magnetic fields pointing in opposite...
PRB_Ohio writes The sun is in the middle of a century long solar minimum, and sunspots have been puzzlingly scarce for more than two years. Now, for the first time, solar physicists might understand why. The gist is that there is a jet stream like phenomenon about 7,000km below the surface of th...
It is still somewhat mysterious how Jupiter affects the sunspots, but one hint is offered by those individual months whose stability overrides that of its surroundings thus showing a tendency towards some particular value at that point of the Jovian year. With the 14 Jovian year averages we found two such months: the perihelion month and the month 35 or 1/4 of the Jovian year. With 19 Jovian years we saw a sharp rise from month 28 to month 30 plus the rise during the perihelion. If we look at the individual months we see that the perihelion month 0 is the most stabile month if we count the mid-47 % of the values. The range is only 16 Wolfs or from 35 to 51. The range of the next month or the month 1 is already 45 Wolfs. Almost as narrow as the perihelion, namely 17 Wolfs (from 20 to 37) is the range of the month 107 or -35 months or 1/4 Jovian years before the perihelion. All other months have at least a range of 20 Wolfs the top one being held by month 51, namely 91 Wolfs. Month 51 is just at ...
Visit us to learn more about our Sunspot Sunflower. Big 10-in. blooms top 2-ft. stems. Packed with crunchy seeds for roasting. 80 DAYS....
When you compare moles to sunspots, you will find that they have one worrying similarity. In both skin conditions, there is a risk of them developing into skin cancer.
Laser treatments can fade sunspots, also known as solar lentiginosis or age spots, by destroying pigment-producing melanocytes in the skin. Patients typically require several treatment sessions over...
At Bodyvie, our aestheticians will create a bespoke treatment plan for laser pigment and sunspot removal suited to your unique skin type.
Sunspot is a Hefeweizen style beer brewed by Greenbush Brewing Company in Sawyer, MI. 3.76 average with 222 ratings, reviews and opinions.
Researchers in California say theyve developed a method to catch sunspots in the early stage of development and give as much as two days warning.
The flare came from a sunspot cluster called Active Region 1302; amateur astronomer Alan Friedman got a fantastic shot of them just the other day, seen here (click to ensolarnate).. There are vast energies stored in the magnetic field lines piercing those spots. Those lines get tangled up, and can suddenly snap, releasing that energy as an intense burst of light as well as a blast of subatomic particles (for details on this, read this earlier post on how sunspots make solar flares).. That region is pretty feisty, and the odds of us getting more flares from those spots are pretty good. The Suns rotation is currently taking them toward the center of the disk, where a good sized explosion is then directed toward us, and particle waves from the blast can then interact more efficiently with our magnetic field. We may be getting aurorae from them, and if things go well thats all well get! A big blast can damage satellites, and even put astronauts on the ISS at risk. We on the ground are pretty ...
Good morning folks. Here is an updated look at the visible solar disk on Thursday. Solar activity during the past 24 hours was low with only minor C-Class activity detected, including a C3.5 flare from just beyond the southeast limb at 09:47 UTC (March 5). Region 2292 looks to be in a state of decay as it approaches the west limb. Region 2293 is stable and non threatening. No Earth directed coronal mass ejections were observed during the past day. A potential active region just off the east limb produced a moderate M1.2 solar flare on Thursday peaking at 18:11 UTC. We will get a better look during the next 24 hours. Attached image courtesy of the Solar Dynamics Observatory (SDO) using the 131 angstroms channel. ...
There is more than enough evidence that human sources are the main cause of global warming to conclude that strong action is needed to reduce greenhouse gas emissions but one alternative explanation for the warming that has not been completely ruled out is known as the cosmic ray hypothesis. According to this explanation solar activity has an effect on cosmic rays which reduces cloudiness, thereby resulting in more sunlight reaching the surface of the earth which leads to increased warming. Science Daily reports that Peter Adams and Jeff Pierce, scientists from Carnegie Mellon University and Dalhousie University (Halifax, Canada), respectively, developed a computer model to test this hypothesis and reported in Geophysical Research Letters that there were not enough changes in the concentrations of particles affecting clouds to make any difference in the climate. Adams told Science Daily that he expects the results of the computer simulation to be challenged but thinks the results will ...
Abstract of paper by S. Fred Singer). The Direct and Indirect Climate Effects of Stratospheric Ozone Changes. Changes in solar activity produce well-recognized changes in stratospheric ozone through changes in solar extreme UV (EUV) radiation. Observations show a 2 to 3 percent variation of total ozone during the solar cycle, outside of the tropical belt. (Angell) The maximum occurs near the peak of the sunspot cycle; amplitude increases with latitude, from near zero in the tropical zone. Stratospheric ozone produces a positive radiative forcing, which is a large fraction of the forcing from GH gases. (Tett et al 1996) Thus, the direct climate effects of the ozone solar-cycle variation should amplify the solar-cycle changes in solar irradiance.. We also discuss the indirect effects of ozone changes on the terrestrial climate: 1) Changes in ozone can affect tropospheric circulation (Haigh). We suggest that this may lead to changes in cloudiness and /or the vertical distribution of water vapor, ...
Solar activity fluctuates in a rhythm of about eleven years, which is reflected among other things in the frequency of sunspots. A complete magnetic period lasts 22 years. Scientists have long been puzzling over what causes this cycle. It must be related to the conditions beneath the skin of our star: A layer of hot plasma - electrically-conductive gas - extends from the surface to 200,000 kilometers below. The plasma within this convection zone is constantly in motion. A team of scientists from the Max Planck Institute for Solar System Research, the University of Gottingen and New York University Abu Dhabi has now succeeded in drawing the most comprehensive picture of the plasma flows in nort-south-direction to date. The researchers have found a remarkably simple flow geometry: the plasma describes a single turnover in each solar hemisphere, which lasts for about 22 years. In addition, the flow in the direction of the equator at the bottom of the convection zone causes spots to form closer ...
Average daily sunspot number dropped from 24 during the previous seven days, to 5.6 in the current reporting week, February 15-21. That average is so low because no sunspots have been seen since February 17, and no new sunspot regions were observed since February 4. Average daily solar flux dropped to 70.1 in the current ...