SVS Animation 3180 - MODIS Daily Global Snow Cover and Sea Ice Surface Temperature as seen in the SIGGRAPH 2005 Electronic Theater

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MODIS Daily Global Snow Cover and Sea Ice Surface Temperature as seen in the SIGGRAPH 2005 Electronic Theater

This animation showing snow cover and sea ice surface temperature in the Northern Hemisphere portrays data collected from daily MODIS satellite images acquired during the winter of 2002-2003. Darkness increases with the onset of autumn, reaching a maximum at the Winter Solstice on December 21st. Thereafter, the circle of darkness shrinks as the period of daylight increases. Daily changes in sea ice are shown as ice surface temperature, which is related to the air temperature and the concentration of the sea ice. Sea ice surface temperatures range from about -40 to -2 degrees Celsius. Here, ice surface temperatures are depicted by colors, described by a color bar shown below. The snow tracks of several winter storms across the United States can be clearly seen. With an albedo of up to 80 percent or more, snow-covered terrain reflects most of the incoming solar radiation back into space, cooling the lower atmosphere. When snow cover melts, the albedo drops suddenly to less than about 30 percent, allowing the ground to absorb more solar radiation, heating the Earth's surface and lower atmosphere. Rapid changes in albedo, resultingfrom snowfall and snow melt, cause significant changes in the regional energy balance. This animation was accepted into the prestigious 2005 SIGGRAPH Electronic Theater, where it was shown during the annual conference from July 31 through August 4, 2005 in Los Angeles, CA. For more information on the data sets used in this visualization, visit NASA's EOS DAAC website.

This animation shows the daily advance and retreat of snow cover, and sea ice surface temperature over the Northern Hemisphere during the winter of 2002-2003. There are two sets of frames available for each resolution (HD 1080i and NTSC). The background frames contain the Earth and data. The overlay frames contain the color bar, time bar, and other text.
Duration: 10809.2 minutes
Available formats:
  1920x1080 (59.94 fps) Frames (Background)
  1920x1080 (59.94 fps) Frames (Overlay)
  720x480 (29.97 fps) Frames (Background)
  720x480 (29.97 fps) Frames (Overlay)
  320x213 JPEG 25 KB
  352x240 (29.97 fps) MPEG-1 64 MB
  720x480 (29.97 fps) MPEG-2 138 MB
  512x288 (29.97 fps) MPEG-1 76 MB
  Audio Track
  320x180 (59.94 fps) MPEG-1 22 GB
  320x180 (59.94 fps) X-FLV 10 MB
How to play our movies

This image shows the snow cover and sea ice surface temperature on March 15, 2003.

Available formats:
  2560 x 1920 TIFF 7 MB
  320 x 240 JPEG 41 KB
  160 x 80 PNG 14 KB
  80 x 40 PNG 4 KB

This color bar used for the sea ice surface temperature shows the water above 0 Celsius as light blue. Temperatures between 0 and -15 Celsius are shown in shades of pink. (Note that sea ice forms below -2 Celsius.) Shades of purple represent sea ice surface temperatures below -15 degrees Celsius and temperatures below -28 degrees Celsius are shown in shades of blue/gray.

Available formats:
640 x 480 TIFF 22 KB
320 x 240 JPEG 7 KB

Animation Number:	3180
Completed:	2005-04-29
Animators:	Cindy Starr (GST) (Lead)
	Greg Shirah (NASA/GSFC)
	Marte Newcombe (GST)
Narrator:	Michael Starobin (HTSI)
Scientists:	Dorothy Hall (NASA/GSFC)
	George Riggs (SSAI)
Writers:	Cindy Starr (GST)
	Dorothy Hall (NASA/GSFC)
	George Riggs (SSAI)
Platforms/Sensors/Data Sets:	Aqua/MODIS
	SeaStar/SeaWiFS
	Terra/MODIS
	Aqua/MODIS/Sea Ice Extent and Ice Surface Temperature Daily L3 Global 4km EASE-Grid Day (MYD29E1D)
	SeaStar/SeaWiFS/Monthly Land Reflectance
	Terra/MODIS/Snow Cover Daily L3 Global 0.05Deg CMG (MOD10C1)
	Terra and Aqua/MODIS/Blue Marble: Next Generation
Data Collected:	2002/07/01 - 2003/05/31
Series:	Modis Daily Snow and Sea Ice Temperature 2002-2003
	Narrated Movies
Keywords: DLESE >> Cryology SVS >> HDTV SVS >> Sea Ice SVS >> Snow Cover GCMD >> EARTH SCIENCE >> Cryosphere >> Sea Ice >> Ice Temperature GCMD >> EARTH SCIENCE >> Cryosphere >> Snow/Ice >> Snow Cover GCMD >> EARTH SCIENCE >> Hydrosphere >> Snow/Ice >> Snow Cover GCMD >> EARTH SCIENCE >> Hydrosphere >> Snow/Ice >> Snow/Ice Temperature
More Information on this topic available at: http://www.siggraph.org/s2005/main.php?f=conference&p=caf&s=et

Full Animation Credits: Directed by Dr. Dorothy K. Hall NASA Goddard Space Flight Center Produced by Dr. Horace G. Mitchell Scientific Visualization Studio NASA Goddard Space Flight Center Music 'Luna D'Espagna' Composed and Performed by Robert Hitz Courtesy of Zederwalt Music Contributors Randall Jones, Global Science and Technology Alex Kekesi, Global Science and Technology Kevin Mahoney, Computer Sciences Corporation Lori Perkins, NASA Stuart Snodgrass, Global Science and Technology Eric Sokolowsky, Global Science and Technology James W. Williams, Global Science and Technology Audio Recording by Fred Kemman, Honeywell Technology Solutions Audio Mixing by Mike Velle, Honeywell Technology Solutions MODIS data courtesy of the MODIS Science Team Dr. Vince Salmonson, Team Lead NASA Goddard Space Flight Center SeaWiFS data courtesy of the SeaWiFS Project and GeoEye NOTE: All SeaWiFS images and data presented on this web site are for research and educational use only. All commercial use of SeaWiFS data must be coordinated with GeoEye (http://www.geoeye.com). Blue Marble MODIS data composite courtesy of the MODIS Science Team and the NASA Earth Observatory Reto Stockli, Science Systems and Applications, Inc.

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