September Sea Ice Extent, 1979-2012

Compare satellite images of September sea ice extent for the last thirty years for both the Arctic and the Antarctic..

September sea ice extent, 1979-2012 file for Google Earth (KMZ, 410 KB)

Data Source: Sea Ice Index

Sea Ice: Minimum and Maximum Extents

View Arctic and Antarctic sea ice extents from 1979 through present for the months March and September. Note: To see March, click on the March layer in the Google Earth side panel.

Sea ice extents file for Google Earth (KMZ, 374 KB)

Data Source: Sea Ice Index

A Climate Change Tour of Cold Places
View a narrated tour of the snowy and icy regions of the world covering sea ice, glaciers, ice shelves, and permafrost.

Climate Change Tour of Cold Places (KML, 32 KB)

Data Sources and Acknowledgements

Note: This was a collaborative project between NSIDC and the University of Colorado at Boulder School of Education.

Also see: Scientists Answer Student's Questions about the Cryosphere

Wilkins Ice Bridge Collapse, February-April 2009
View a time series of satellite images showing the break up of an ice bridge that was shoring up the Wilkins ice shelf.

Wilkins ice bridge collapse file for Google Earth (KMZ, 547 KB)

Data Source: Moderate Resolution Imaging Spectroradiometer (MODIS)

Snow (MODIS Sensor)
View global, monthly average snow cover each month for one year:

NOTE: Currently, this time series ends with 2009, and the following months are also missing from this time series: June 2001, March 2002, and December 2003.

2009 snow cover (KML, 670 KB)
2008 snow cover (KML, 670 KB)
2007 snow cover (KML, 670 KB)
2006 snow cover (KML, 670 KB)
2005 snow cover (KML, 670 KB)
2004 snow cover (KML, 670 KB)
2003 snow cover (KML, 670 KB)
2002 snow cover (KML, 670 KB)
2001 snow cover (KML, 670 KB)
2000 snow cover (KML, 670 KB)

Data Source: MODIS/Terra Snow Cover Monthly L3 Global 0.05Deg CMG, Version 5

Glaciers and Climate Change
View glacier photograph pairs showing how some glaciers have changed over time

Glaciers and climate change file for Google Earth (KML, 48 KB)

Data Source: Glacier Photograph Collection

Changes in Glaciers, the Larsen B Ice Shelf, and Arctic Sea Ice Extent
View photographs showing long-term changes in glaciers; watch the disintegration of the Larsen B ice shelf; and view Arctic and Antarctic sea ice extents from 1979 through present

Glaciers, ice shelves, and sea ice file for Google Earth (KML, 8 KB)

Data Sources: Glacier Photograph Collection; Sea Ice Index; Animation of Larsen B breakup

Glaciers
View photographs of more than 10,000 glaciers, 1880s to present

Glaciers and permafrost file for Google Earth (KML, 5.2 KB)

Data Source: Glacier Photograph Collection; Circum-Arctic Map of Permafrost and Ground-Ice Conditions

Note:.On October 1, 2007 we added more than 1,200 Greenland glaciers and several Franz Josef, New Zealand glaciers. Prior users may download the new file to get the updates.

Glaciers: GLIMS ASTER Glacier Footprints
View approximately 150,000 ASTER browse images over regions of the world where glaciers exist (from 2000-present)

GLIMS ASTER glacier footprints file (KMZ, 4 KB)

Data Source: GLIMS Glacier Database; Terra ASTER Metadata Inventory, EROS

Greenland Annual Surface Melt, 1979 - 2007
View the extent and frequency of surface melt for the Greenland ice sheet

Greenland melt file for Google Earth (KMZ, 404 KB)

Data Source: Greenland Ice Sheet Melt Characteristics Derived from Passive Microwave Data

Icebergs: IceTrek Iceberg Tracks
Explore the lifecycle of drifting Antarctic icebergs, and view photos from instruments riding on the bergs

IceTrek iceberg tracks file (KMZ, 6.7 MB)

Data Source: IceTrek Web site

Ice Shelves: Breakup of the Larsen B Ice Shelf
Watch the disintegration of the Larsen B ice shelf in 2002, as captured in MODIS satellite images

Larsen B ice shelf file for Google Earth (KMZ, 3 MB)

Data Source: Animation of Larsen B breakup

Permafrost, Ground Ice
View permafrost and ground ice types and extents in the Northern Hemisphere

Glaciers and permafrost file for Google Earth (KML, 8 KB)

Data Source: Circum-Arctic Map of Permafrost and Ground-Ice Conditions

Sea Ice: Daily Concentration, July - September 2007
View daily sea ice concentration for the two months leading up to the record Arctic sea ice minimum extent in September 2007

NISE daily sea ice concentration, July 16 - September 16, 2007 file (KMZ, 612 KB)

Data Source: Near-Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent (NISE)

Sea Ice: Nordic Seas Ice Edge
View changes in the sea ice edge in the Nordic Seas, from 1967 to 2002, for the months March through August.

Nordic Seas ice edge (KML, 892 KB)

Data Source: March through August Ice Edge Positions in the Nordic Seas, 1750-2002

Antarctic Glaciological Data Center Field Data
Locate and link to Antarctic images and data sets from the Antarctic Glaciological Data Center (AGDC)

Antarctic data file for Google Earth (KMZ, 11 KB)

Data Source: NSIDC Antarctic Glaciological Data Center