Arctic Sea Ice Below Normal
Skip Navigation Linksweather.gov 
NOAA logo - Click to go to the NOAA homepage National Weather Service Forecast Office   NWS logo - Click to go to the NWS homepage
Go to NWS State College, PA Home
 

Local forecast by
"City, ST" or zip code
Arctic Sea Ice Below Normal

The extent of arctic sea ice is much below normal for this time of year and recent trends indicate the sea ice is disappearing at a much faster rate than expected. The images below are from the NCEP MMAB Sea Ice Analysis Page which show the observed arctic sea ice coverage as of October 23. The image below that is the normal arctic sea ice coverage for October also available from the NCEP MMAB site . The climatology of ice cover spans 1901 to 1990 for the northern hemisphere.

These two images when compared and contrasted through the animated image below reveal much below normal arctic sea ice coverage over the Arctic for this time of year. In fact the current Arctic sea ice cover is less now than it normally is during the height of summer.

A comparison was done between the extent of arctic sea ice currently observed and the extent of ice cover for the same time last year. Current observations indicate the ice coverage is lagging behind from what was observed last year.

Finally a graph at the bottom shows the arctic sea ice loss trends between observations from 1979-2007 and IPCC model forecasts. The current trend during the past few years is sharply downward at an accelerated rate compared to computer model forecasts indicating the arctic sea ice loss rate is progressing at a more rapid pace. For more information on the loss of arctic sea and projected forecasts see this link to the University Corporation for Atmospheric Research. .

Observed Arctic Sea Ice Coverage as of Oct 23, 2007 ice coverage key
Observed Arctic Sea Ice Coverage as of Oct 23, 2007

Normal Arctic Sea Ice Coverage for the end of October ice coverage key
Normal Arctic Sea Ice Coverage for the end of October

Comparison of Normal Arctic Sea Ice with Current Observation ice coverage key

Comparison of Normal Arctic Sea Ice with Current Observation

Sea Ice Coverage Oct 23, 2007
Sea Ice Coverage Oct 23, 2006
 
current ice coverage ice coverage last year ice coverage key

 

Comparison of Arctic Sea Ice on Oct 23, 2007 with Sea Ice Coverage Oct 23, 2006

Arctic Sea Ice Loss Trend Comparison between Observation and IPCC Model Forecasts
Arctic Sea Ice Loss Trend Comparison between Observation and IPCC Model Forecasts


 
Local Climate, Water & Weather Topics:
Forecasts, Current Hazards, Current Conditions, Water Resources, Radar, Satellite, Climate,
Weather Safety, Wireless/PDAs, Feature Articles,

US Dept of Commerce
NOAA National Weather Service
Central Pennsylvania Weather Forecast Office
328 Innovation Blvd, Suite 330
State College, Pennsylvania 16803
(814)231-2408
Page Author: 
Page Last Modified: 29 October 2007 13:07:38 UTC
Disclaimer
 
Credits
 
Glossary
Privacy Policy
 
About Our Organization
 
Career Opportunities