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November 12, 2007
Sea Ice Charts
of the Russian Arctic in Gridded Format, 1933-2006
These data, from the Arctic and Antarctic
Research Institute in St. Petersburg, Russia, are an important
new data source for those studying the role of sea ice in climate
change.
October 2007
Sea Ice Index
In the News
Sea Ice Index graphics and numbers figured
prominently in coverage of this year's record sea ice extent minimum.
The Index Web site had more than 135,000 hits from more than 9000
distinct users in the month of September alone.
The Arctic Ice Dynamics
Joint Experiment (AIDJEX)
AIDJEX was a pioneering experiment that in
the mid 1970s provided answers to emerging questions about how
sea ice moves and changes in response to the influence of ocean
and atmosphere. See the new AIDJEX page for links to a photo gallery,
related material, and to a new retrospective on the experiment
by Norbert Untersteiner, AIDJEX Project Director, 1971-1977.
September 27, 2007
More Online
Glacier Photographs
Today's update to the online collection includes
50 photographs taken between 1890 and 1996. Represented in this
batch are Colorado glacier photographs taken by Junius Henderson,
Oscar A. Randolph, Rudolph Johnson, and Russell Allen. The glaciers
are Andrews, Arapaho, Fair, Isabel, Mills, Saint Vrain and Taylor.
Other photos include a series of Franz Josef Glacier (1951-1964),
and Harry Fielding Reid images of John Muir's cabin taken in 1890.
September 2007
Browse Sea Ice Climatologies More Easily
National Ice
Center Arctic Sea Ice Charts and Climatologies in Gridded Format can
now be easily browsed. Using a using a Web Image Spreadsheet
Tool (WIST), one can quickly compare (visually) different time
periods and products. Click on Browse Images at the top of the
product site to see how it works. Use the drop down menus to
change the number of rows and columns, and the chart products
and time period being displayed.
Sea Ice Index Site Redesigned, GIS Files Available
The Sea Ice Index pages
have been redesigned so that graphs and images are easier to find.
Thumbnails now take users to the Web Image Spreadsheet Tool (WIST),
where one can quickly compare images from different time periods.
GIS compatible files (shapefiles) of monthly ice coverage are now
available as well.
Sea Ice Added to Science on a Sphere
Sea ice animations are now available in the
dataset catalog of NOAA's Science
On a Sphere. Animations of sea ice concentration show the annual
cycle and give some idea of its variability, while a series of
September monthly means from 1987 on highlights the change in the
annual Arctic minimum sea ice extent through time.
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