http://nsidc.org/arcticseaicenews/
Related: askurCurrent State of Sea Ice Cover | Earth J. C. Comiso, C. L. Parkinson, T. Markus, D. The sea ice cover is one of the key components of the polar climate system. Figure 1: 10-year averages between 1979 and 2018 and yearly averages for 2007, 2012, and 2022 of the daily (a) ice extent and (b) ice area in the Northern Hemisphere and a listing of the extent and area of the current, historical mean, minimum, and maximum values in km2. Figure 2: Color-coded map of the daily sea ice concentration in the Northern Hemisphere for the indicated recent date along with the contours of the 15% edge during the years with the least extent of ice (in red) and the greatest extent of ice (in yellow) during the period from November 1978 to the present. Figure 3. Figure 4: Color-coded animation displaying the last 2 weeks of the daily sea ice concentrations in the Northern Hemisphere. Figure 7. Figure 8: Color-coded animation displaying the last 2 weeks of the daily sea ice concentrations in the Southern Hemisphere. J. Figure 3. Figure 7.
Nouveau record de fonte de glace pour le pôle Nord - Sciences L'Arctique fond et fond même à vue de satellite. Des scientifiques de la NASA et du National Snow Ice Data Center (NSIDC) ont expliqué lundi que la calotte glacière a atteint sa plus petite superficie dimanche dernier. Cela fait déjà 30 ans que des satellites permettent de mesurer la banquise de la mer arctique. Ce 26 août 2012, la calotte glacière ne faisait plus que 4,10 millions de kilomètres carrés. Les données sont surprenantes car les experts expliquaient le record de 2007 par un contexte climatique exceptionnel. Mais ce qui étonne les spécialistes cette année c'est la précocité de ce phénomène. World Glacier Monitoring Service For more than a century, the World Glacier Monitoring Service (WGMS) and its predecessor organizations have been compiling and disseminating standardized data on glacier fluctuations. Thereto, the WGMS annually collects glacier data through its scientific collaboration network that is active in more than 30 countries. More... In close collaboration with the U.S. photo: participants of the WGMS General Assembly 2010 (by F.
Lifestyle changes may combat a dementia that strikes people in their 40s and 50s The first symptom is likely a loss of interest in life and the well-being of others. A person might ignore their spouse or children's feelings, get uncharacteristically frustrated and say or do inappropriate things -- such as laugh at a funeral. Even worse, they'll likely have no idea they have changed. "It's a pretty devastating disease that impacts people in the prime of their lives," said neurologist Kaitlin Casaletto, an assistant professor in the Memory and Aging Center at the University of California, San Francisco. Science has struggled to provide interventions to help these patients. Casaletto and her colleagues followed the activity levels of 105 people with the inherited form of the disease, the first study to do so in this population. "This is an extremely important study providing the strongest evidence yet that lifestyle factors can positively impact brain health, not only for Alzheimer's disease, but frontotemporal lobar dementia as well," said neurologist Dr.
Strong Summer Cyclone Churns Over the Arctic An unusually large, long-lasting, and powerful cyclone was churning over the Arctic in early August 2012. Two smaller systems merged on August 5 to form the storm, which at the time occupied much of the Beaufort-Chukchi Sea and Canadian Basin. On average, Arctic cyclones last about 40 hours; as of August 9, 2012, this storm had lasted more than five days. The Visible Infrared Imaging Radiometer Suite (VIIRS) on Suomi NPP captured this view of the storm on August 7, 2012. Arctic cyclones are more common during the summer than winter; however, summer cyclones tend to be weaker than the storms that batter the region during the winter. The number of cyclones affecting the Arctic appears to be increasing. The cause of the increase is an open question, but climate change may be affecting Arctic cyclones. One way climate change may affect Arctic cyclones is by changing the sea ice and ocean temperature. Further Reading NASA. (2008, October 6). Instrument(s): Suomi NPP - VIIRS
SOTC: Introduction NSIDC's State of the Cryosphere provides an overview of the status of snow, ice, and permafrost as indicators of climate change. This site provides time-series data for Northern Hemisphere snow cover, mountain glacier fluctuations, sea ice extent and concentration, changes in ice shelves, and global sea level. It also provides a snapshot of current permafrost conditions. Image credits clockwise from top left: Formosat image of icebergs © 2008 Dr. Cheng-Chien Liu, National Cheng-Kung University and Dr. An-Ming Wu, National Space Organization, Taiwan; photo of ptarmigan tracks by Andrew Slater, NSIDC; photo of James Ross Island by Rob Bauer, NSIDC; International Space Station astronaut photo of Pared Norte Glacier courtesy NASA. Introduction: Are global temperatures rising? Northern Hemisphere Snow: What satellite sensors are telling us about snow cover Glaciers: Mountain glacier fluctuations Permafrost and Frozen Ground: Insights from a Northern Hemisphere map and field observations
Alzheimer's Found To Be Mostly Genetic: Largest Twin Study Ever Undertaken Confirms Highest Estimates Of Genetic Risk -- ScienceDaily Alzheimer disease has a genetic cause in up to 80 percent of cases, according to a University of Southern California- led study of nearly 12,000 twin pairs. The study appears in the February 2006 issue of Archives of General Psychiatry, a journal of the American Medical Association. Margaret Gatz, professor of psychology in the USC College of Letters, Arts, and Sciences, led an international team of researchers from Göteborg University, Jönköping University and Karolinska Institutet in Sweden, as well as from USC, the University of California at Riverside and the University of South Florida. Past estimates of Alzheimer's risk varied widely, with the highest numbers sometimes greeted with skepticism. "Our finding confirms the higher estimates that have been suggested previously. The study raises doubts about the widely held view that Alzheimer's has two forms: the "familial," with genetic roots, and the "sporadic," with environmental causes.
La banquise arctique pourrait complètement disparaître d'ici à quatre ans La fonte des glaces de mer du pôle Nord s'accélère au point qu'elles pourraient avoir totalement disparu, en été, entre 2015 et 2016, selon Peter Wadhams, de l'université de Cambridge. Le Monde.fr | • Mis à jour le | Par Audrey Garric La fonte de la banquise arctique s'accélère au point qu'elle pourrait avoir totalement disparu en été d'ici à quatre ans. Wadhams, qui dirige le département de physique de l'océan polaire à l'université de Cambridge, en Angleterre, a passé de nombreuses années à recueillir des données sur l'épaisseur de la glace grâce aux mesures de sous-marins parcourant l'océan Arctique. Cette année, le retrait des glaces s'annonce bien plus important : la banquise Arctique – la zone de l'océan où au moins 15 % de la surface est glacée – ne s'étend pour l'instant plus que sur 3,4 millions de km2 et elle continue de reculer, comme le montre le suivi quotidien du National Snow and Ice Data Center (NSIDC) américain. "UNE CATASTROPHE MONDIALE" en 2015 OU 2016
Terms and Conditions | Costco Iceland Aðildarkort Aðild er í boði fyrir 18 ára og eldri. Aðildarkortið má aðeins sá nota sem kortið er stílað á. Ljósmynd af meðlimi verður að fylgja svo kortið sé gilt. Ljósmynd er tekin í versluninni. Costco áskilur sér rétt til að neita umsækjanda um aðild. Aðildargjöld Aðildargjald fyrir Fyrirtækjameðlimi er 3.800 kr (m. vsk) og innfalið er ókeypis heimiliskort. Endurnýjun aðildar Aðalmeðlimurinn verður að heimila endurnýjun og allar breytingar, þ.á.m. þegar kortum er bætt við eða sagt upp. Týnd/stolin kort Tilkynna skal týnd eða stolin kort eins fljótt og auðið er við aðildarborðið. Greiðsla Við tökum á móti reiðufé og öllum debet- og kreditkortum. Ýmislegt Meðlimir mega gjarnan koma með börnin sín og bjóða allt að tveimur gestum inn í vöruhúsið en eingöngu meðlimir Costco mega kaupa vörur. Costco ábyrgð Við munum endurgreiða árlegt aðildargjald ykkar ef vöruhúsið stenst ekki fullkomlega væntingar ykkar. „COSTCO“ er skráð vörumerki.
What the Hell is happening to the Arctic Sea Ice? Yet no mention of the arctic cyclone that pushed the sea ice to below predicted levels for this year? I don't blame you as the media didn't pick up on it at all. NASA did catch it, thanks to NSIDC, but they forgot all about it in their second press release. At first they have the story straight: “It seems that this storm has detached a large chunk of ice from the main sea ice pack. However they omit part of the conclusion, pertaining to the cyclone, in the article that was touted all over our mass media: "In 2007, it was actually much warmer," Comiso said. Fun to see what people pick up on and what they neglect to mention. NSIDC did a much better job.
Families sending relatives with dementia to Thailand for care | Society British families are sending elderly relatives with dementia overseas to Thailand in a small but growing trend. Researchers visiting private care homes in Chiang Mai have found eight homes where guests from the UK are living thousands of miles away from their families, because suitable care in their home country was impossible to find or afford. “Thailand already has a long history of medical tourism and it’s now setting itself up as an international hub for dementia care,” said Dr Caleb Johnston, a senior lecturer in human geography at Newcastle University. Some of the facilities are British-run; some are Thai-run but with substantial investment from British citizens; and some are Swiss-run. There are an estimated 850,000 people living with dementia in the UK. In Thailand, in contrast, 1:1 around-the-clock residential care with fully-qualified staff – in award-winning facilities that look like four-star hotels – costs around £750 a week. “So then we moved again to the north of England.
Satellites see Unprecedented Greenland Ice Sheet Melt Extent of surface melt over Greenland's ice sheet on July 8, 2012 (left) and July 12, 2012 (right). Measurements from three satellites showed that on July 8, about 40 percent of the ice sheet had undergone thawing at or near the surface. In just a few days, the melting had dramatically accelerated and an estimated 97 percent of the ice sheet surface had thawed by July 12. July 24, 2012 PASADENA, Calif. - For several days this month, Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations. On average in the summer, about half of the surface of Greenland's ice sheet naturally melts. Researchers have not yet determined whether this extensive melt event will affect the overall volume of ice loss this summer and contribute to sea level rise. "The Greenland ice sheet is a vast area with a varied history of change. Nghiem consulted with Dorothy Hall at NASA's Goddard Space Flight Center in Greenbelt, Md.