Arctic/Greenland/Cryosphere

| Note: Missing graphics may be due to temporary server maintenance (or the occasional gov. shutdown). |

| Note: USN servers have been moved. OSS is retargeting data locations (Sep. Oct. 2013)

CRYOSPHERE

Arctic Trends

Arctic Ice Extent (areas with at least 15% ice coverage) [updates daily]

Source: National Snow & Ice Data Center

Graph: http://nsidc.org/data/seaice_index/images/daily_images/N_stddev_timeseries.png

Arctic Ice Extent [updates monthly]

Source: http://nsidc.org/data/seaice_index/

Ice Concentration Anomalies [updates monthly]

Source: http://nsidc.org/data/seaice_index/

Arctic Sea Ice Volume

Source: Polar Science Center - Arctic Sea Ice Volume Page

Image: http://psc.apl.washington.edu/wordpress/wp-content/uploads/schweiger/ice_volume/BPIOMASIceVolumeAnomalyCurrentV2.png

Movies and snapshots of the 1/12° Global HYCOM

SSH
Last 30 days (gif) Last 12 months (gif) Yearly movies 2012 2011 2010 2009 Snapshot archive

SST
Last 30 days (gif) Last 12 months (gif) Yearly movies 2012 2011 2010 2009 Snapshot archive

SSS
Last 30 days (gif) Last 12 months (gif) Yearly movies 2012 2011 2010 2009 Snapshot archive

Source: http://www7320.nrlssc.navy.mil/GLBhycom1-12/arctic.html

Sea Surface Temperature

Source: http://www7320.nrlssc.navy.mil/hycomARC/arctic.html

Tomorrow's Ice Concentration Forecast [updates daily]

Source: http://www7320.nrlssc.navy.mil/pips2/

Source: http://www.arctic.noaa.gov/gallery_np.html

Greenland

Daily Melt

Source: http://nsidc.org/greenland-today/

Snow Cover

Note: Global warming is increasing the moisture content of the atmosphere due to warmer oceans. This could manifest as an increase in snow extent. The warmer atmospheric temperatures altering season lengths should melt the snow faster in the spring. The data does indicate this to be true. We will add to this section if direct attribution studies are conducted.

Fall Northern Hemisphere Snow Extent

Image: Spring Northern Hemisphere Snow Extent

Arctic Oscillation [updates monthly]

Source: National Climate Data Center

Image: http://www1.ncdc.noaa.gov/pub/data/cmb/teleconnections/ao-5-pg.gif

Arctic Oscillation - Observed & GFS Forecasts

Source: http://www.cpc.noaa.gov/products/precip/CWlink/daily_ao_index/teleconnections.shtml

Arctic Oscillation - Observed & ENSM Forecasts

Source: http://www.cpc.noaa.gov/products/precip/CWlink/daily_ao_index/teleconnections.shtml

Arctic Oscillation Since 1950

Source: Arctic Oscillation (AO) - Period of Record Time series

Links

• http://www.arctic.noaa.gov/reportcard/