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Sea ice data updated daily with one-day lag

Sea ice data updated daily with one-day lag
On September 11, Arctic sea ice reached its likely minimum extent for 2015. The minimum ice extent was the fourth lowest in the satellite record, and reinforces the long-term downward trend in Arctic ice extent. Sea ice extent will now begin its seasonal increase through autumn and winter. In the Antarctic, sea ice extent is average, a substantial contrast with recent years when Antarctic winter extents reached record high levels. Please note that this is a preliminary announcement. Changing winds or late-season melt could still reduce the Arctic ice extent, as happened in 2005 and 2010. Overview of conditions Figure 1. Credit: National Snow and Ice Data CenterHigh-resolution image On September 11, 2015, sea ice extent dropped to 4.41 million square kilometers (1.70 million square miles), the fourth lowest minimum in the satellite record. The minimum extent was reached four days earlier than the 1981 to 2010 average minimum date of September 15. Conditions in context Figure 2a. Figure 2b.

http://nsidc.org/arcticseaicenews/

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Antarctic sea ice expands to record high level; Arctic sea ice shrinks to sixth lowest September 16 record-setting Antarctic sea ice extent (NSIDC) At opposite ends of the world, trends in sea ice coverage are in stark opposition. Arctic sea ice coverage remains depressed, while Antarctic levels have achieved a record high for the second straight year. Due to warming of the Arctic, the depleted state of Arctic sea ice is expected. The Arctic Oscillation and Arctic Weather Patterns The map of sea level pressure for October 1 to 30, 2010, shows a high-pressure system cenetered over the Beaufort and Chukchi sea and Greenland, and low pressure over the Kara and Barents seas. This pattern tends to bring warm air from lower latitudes into the Arctic. —Credit: National Snow and Ice Data Center courtesy NOAA/ESRL PSD The unique geography of the Arctic leads to unique weather patterns that reappear in the region year after year. Some weather patterns, such as cyclones or anticyclones, occur in the Arctic as well as other regions. Other weather patterns, like the Arctic Oscillation, are specific to the Arctic.

Antarctic sea ice is INCREASING: Big freeze breaks records - but scientists claim the rise is caused by global warming Images suggest there is 7.7 million square miles of sea around continentThis is double size of the Antarctic and three times the size of AustraliaFast westerly winds, which go around Antarctica, are now moving southThis is linked to an increase in greenhouse gases and increase in sea iceSeparate study found region's glaciers are melting faster than ever before By Ellie Zolfagharifard for MailOnline Published: 15:16 GMT, 15 September 2014 | Updated: 15:16 GMT, 15 September 2014 Sea ice cover in the Antarctic is now at its highest level since records began. Satellite images show 7.7 million square miles (20 million sq km) of ice surrounding the continent. But rather than disproving global warming, scientists claim that this growth may in fact be caused by it.

Ryan Maue PhD Meteorology Post by Dr. Ryan N. Maue Dr. Judith Curry is quoted in a classic Seth Borenstein AP screed connecting disparate extreme weather events into a tidy AGW-narrative: “Sometimes it seems as if we have weather amnesia.” …Judith Curry of Georgia Tech disagreed, saying that while humans are changing the climate, these extremes have happened before, pointing to the 1950s… she is correct but just who/what is she disagreeing with?

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. Antarctic sea ice continues to grow beyond record coverage Updated Antarctic sea ice is expected to grow into unprecedented territory in the next two weeks, a scientist has said. Last week, sea ice in the south pole covered more than 20 million square kilometres for the first time since records began.

How to Forecast Weather Ever wondered how to forecast the weather without actually using instruments? Check the Clouds: Clouds can tell us a lot about the weather. For example, they can tell us if it’s going to be warmer on a particular night by simply being there. That’s because they prevent heat radiation from escaping. They can also tell you whether there will be rain and whether there will be bad weather in general (when you see clouds moving in opposite directions of each other). Why is Antarctic sea ice at record levels despite global warming? Antarctic ice floes extended further than ever recorded this southern winter, confounding the world’s most-trusted climate models. “It’s not expected,” says Professor John Turner, a climate expert at the British Antarctic Survey. “The world’s best 50 models were run and 95% of them have Antarctic sea ice decreasing over the past 30 years.” The winter ice around the southern continent has been growing relatively constantly since records began in 1979. The US National Snow and Ice Data Centre (NSIDC), which monitors sea ice using satellite data, said this week that the year’s maximum was 1.54m sq km (595,000 sq miles) above the 1981-2010 average.

Explanations MSLP patterns Isobars join points of equal atmospheric pressure. On one side of the isobar pressure is smaller than the isobar value, on the other side greater. A common metaphor is a topographic map with it's lines denoting height: mountains are equal to areas of high pressure, dales equal to lows. Similarly, we can talk about ridges and troughs (or valleys). Wind follows roughly the direction of the isobars so that if you walk along an isobar and the wind is blowing onto the back of your neck, the lower pressure is at your left hand side (in the Northern Hemisphere .. reverse the rule for the Southern Hemisphere) *. WDSS-II: CONUS Multi-Radar Disclaimer: Images on these pages are experimental. Real-time access to these images may not be available at all times (due to data outages, network problems, availability of resources, or at the discretion of the publisher). Use at your own risk. Data are experimental and may expirence any number of problems including being late or not being available at all. Do not use for protection of life or property, or for any commercial use without permission.

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: University Climate Lab across Northern Hemisphere lands. For more daily charts, including the click the map. Snow Extent CDR Update

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