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Cryosphere Now: Sea and Freshwater Ice

The most recent floating (sea, lake, and river) ice information is given below. They are generally 1-4 days old. Hover over a thumbnail to get the full image, description, and credits. Important: The products shown on the "Cryosphere Now" pages provide a variety of perspectives on the state of the cryosphere. They are for purposes of illustration and comparison and are not necessarily endorsed by GCW as "authoritative". Note: Some of the products are not available during the summer.

Global:

NOAA Multisensor Snow/Ice Cover

The Global Snow and Ice Cover Map is derived from combined observations of METOP AVHRR, MSG SEVIRI, GOES Imager and DMSP SSMIS. The algorithm is fully automated. This is an experimental product. It is a NOAA/NESDIS product. (Courtesy of Peter Romanov)

Northern Hemisphere:

JAXA-NiPR Ice Extent Tracker

JAXA-NiPR sea ice extent tracker based on AMSR2 ice concentraiton. An interactive version is available on their website.

NSIDC Ice Extent Tracker

Ice Time Series plots are from NSIDC.

JAXA-NiPR Ice Trend

JAXA-NiPR sea ice extent trend for the September minimum. More plots are available from the National Institute of Polar Research (NIPR) Arctic Data archive System (ADS).

APP-x Ice Thickness Tracker

The current (4-day old) sea ice thickness compared to the recent climatology (mean plus/minus one standard deviation) from the AVHRR Polar Pathfinder-Extended (APP-x) product. Area coverage is 70-90oN. This is an experimental product.

APP-x Temperature Tracker

The current (4-day old) surface (skin) temperature compared to the recent climatology (mean plus/minus one standard deviation) from the AVHRR Polar Pathfinder-Extended (APP-x) product. Area coverage is 70-90oN. This is an experimental product.

APP-x Surface Albedo Tracker

The current (4-day old) surface albedo compared to the recent climatology (mean plus/minus one standard deviation) from the AVHRR Polar Pathfinder-Extended (APP-x) product. Area coverage is 70-90oN. This is an experimental product.

 
JAXA-NiPR AMSR2 Snow & Ice

JAXA's composite image product with sea ice concentration, sea surface temperature, and snow depth on land. From AMSR2 data. More plots are available from the National Institute of Polar Research (NIPR) Arctic Data archive System (ADS).

AMSR2 Ice Concentration

The AMSR2 ice concentration data from CIMSS/NOAA.

VIIRS Ice Concentration

This is a daily composite of sea ice concentration from S-NPP VIIRS orbits. It is generally 5 days old. This is a NOAA "enterprise" algorithm; it is not the NOAA operational algorithm distributed through CLASS. It produced by the Cooperative Institute for Meteorological Satellite Studies (CIMSS) and NOAA at the University of Wisconsin-Madison. Caution: There are sometimes issues with the cloud mask that are seen in the ice concentration plots.

NSIDC Ice Extent

This is NSIDC's ice extent product.

MASIE Ice Extent

NSIDC produces MASIE (may-zee) in cooperation with the U.S. National Ice Center (NIC). MASIE relies on data from the Interactive Multisensor Snow and Ice Mapping System (IMS) that runs at the NIC. The IMS product uses several satellite data sources including passive microwave, but it is also based on visual analysis and other data sources and undergoes a form of manual data fusion.

JAXA-NiPR Ice Thickness

JAXA-NiPR sea ice thickness. More information is available on their website.

CryoSat Ice Thickness

28-day composite of sea ice thickness based on CryoSat data from the CryoSat Operational Polar Monitoring (CPOM) group and the European Space Agency (ESA). CPOM's CryoSat sea ice thickness website, with additional information and access to the data, is http://www.cpom.ucl.ac.uk/csopr/seaice.html. 14-day and 2-day composites are also available.

SMOS Ice Thickness

Sea ice thickness from ESA's Soil Moisture Ocean Salinity (SMOS) satellite. Important: The maximum retrievable ice thickness with SMOS is about 1 m. Additional information and data are available from the Universität Hamburg.

OSI SAF Ice Drift

OSI SAF Ice Drift is the low resolution sea ice drift product from the EUMETSAT Ocean & Sea Ice Satellite Application Facility (OSI SAF). It is based on SSMIS and ASCAT data.

JAXA-NiPR Ice Drift

JAXA-NiPR sea ice drift. More information is available on their website.

VIIRS Ice Surface Temperature

This is a daily composite of sea ice surface (skin) temperature (IST) from S-NPP VIIRS orbits. It is generally 5 days old. This is a NOAA "enterprise" algorithm; it is not the NOAA operational algorithm distributed through CLASS. It produced by the Cooperative Institute for Meteorological Satellite Studies (CIMSS) and NOAA at the University of Wisconsin-Madison. Caution: There are sometimes issues with the cloud mask that are seen in the IST plots.

APP-x IST

APP-x is the extended AVHRR Polar Pathfinder. It is a 30+ year product suite of twice-daily composites for the Arctic and Antarctic, updated daily (though a few days old). It is a research product and some parameters are experimental.

APP-x Albedo

APP-x is the extended AVHRR Polar Pathfinder. It is a 30+ year product suite of twice-daily composites for the Arctic and Antarctic, updated daily (though a few days old). It is a research product and some parameters are experimental.

See also:

Southern Hemisphere:

JAXA-NiPR Ice Extent Tracker

JAXA-NiPR sea ice extent tracker based on AMSR2 ice concentraiton. An interactive version is available on their website.

NSIDC Ice Extent Tracker

Ice Time Series plots are from NSIDC.

JAXA-NiPR Ice Trend

JAXA-NiPR sea ice extent trend for the February minimum. More plots are available from the National Institute of Polar Research (NIPR) Arctic Data archive System (ADS).

APP-x Ice Thickness Tracker

The current (4-day old) sea ice thickness compared to the recent climatology (mean plus/minus one standard deviation) from the AVHRR Polar Pathfinder-Extended (APP-x) product. Area coverage is 65-70oS. This is an experimental product.

APP-x Temperature Tracker

The current (4-day old) surface (skin) temperature compared to the recent climatology (mean plus/minus one standard deviation) from the AVHRR Polar Pathfinder-Extended (APP-x) product. Area coverage is 65-90oS, which includes both sea ice and the ice sheet. This is an experimental product.

AARI/NIC/NMI Ice Concentration

Sea ice total concentration and icebergs from the integrated sea ice analysis for Antarctic waters by AARI/NIC/NMI (Arctic and Antarctic Research Institute, Russian Federation/National Ice Center, USA/Norwegian Meteorological Institute) (full resolution image here).

AARI/NIC/NMI Devel. Stages

Sea ice stages of development and icebergs from the integrated sea ice analysis for Antarctic waters by AARI/NIC/NMI (Arctic and Antarctic Research Institute, Russian Federation/National Ice Center, USA/Norwegian Meteorological Institute) (full resolution image here).

AARI/NIC/NMI Ice Chart

Antarctic Peninsula Sea ice chart from the AArctic and Antarctic Research Institute (AARI, Russian Federation)/National Ice Center (NIC, USA)/Norwegian Meteorological Institute (NMI) integrated sea ice analysis for Antarctic waters.

NSIDC Ice Extent

This is NSIDC's ice extent product.

JAXA AMSR2 Snow & Ice

JAXA's composite image product with sea ice concentration, sea surface temperature, and snow depth on land. From AMSR2 data. More plots are available from the National Institute of Polar Research (NIPR) Arctic Data archive System (ADS).

AMSR2 Ice Concentration

The AMSR2 ice concentration data are from CIMSS/NOAA.

VIIRS Ice Concentration

This is a daily composite of sea ice concentration from S-NPP VIIRS orbits. It is generally 5 days old. This is a NOAA "enterprise" algorithm; it is not the NOAA operational algorithm distributed through CLASS. It produced by the Cooperative Institute for Meteorological Satellite Studies (CIMSS) and NOAA at the University of Wisconsin-Madison. Caution: There are sometimes issues with the cloud mask that are seen in the ice concentration plots.

JAXA-NiPR Ice Drift

JAXA-NiPR sea ice drift. More information is available on their website.

Argentina SHN Ice Concentration Forecast


Ice concentration anomaly forecasts from the Argentina Naval Hydrographic Service (Servicio de Hidrografía Naval). More information is available on their website.

VIIRS Ice Surface Temperature

This is a daily composite of sea ice surface (skin) temperature (IST) from S-NPP VIIRS orbits. It is generally 5 days old. This is a NOAA "enterprise" algorithm; it is not the NOAA operational algorithm distributed through CLASS. It produced by the Cooperative Institute for Meteorological Satellite Studies (CIMSS) and NOAA at the University of Wisconsin-Madison. Caution: There are sometimes issues with the cloud mask that are seen in the IST plots.

See also:

Regional Products:

ASIP Alaska Ice Concentration

Ice concentration for the Alaska region from the NOAA/NWS Alaska Sea Ice Program (ASIP). More information is available on their website.

ASIP Alaska Ice Concentration

Ice concentration in the Cook Inlet of Alaska from the NOAA/NWS Alaska Sea Ice Program (ASIP). More information is available on their website.

ASIP Alaska Ice Concentration

5-day sea ice forecast map of the Alaska region from the NOAA/NWS Alaska Sea Ice Program (ASIP). More information is available on their website.

Great Lakes Ice, West

Great Lakes ice chart, western portion, a product of the North American Ice Service (NAIS) obtained from the National Ice Center (NIC). These products are constructed by NIC analysts using various imagery sources with resolutions down to 50 meters per pixel. Imagery sources include but are not limited to ENVISAT, DMSP OLS, AVHRR, and RADARSAT. NIC ice analysts provide the necessary value-added interpretation of these imagery sources to properly identify the extent of the ice edge contours.

Great Lakes Ice, East

Great Lakes ice chart, eastern portion, , a product of the North American Ice Service (NAIS) obtained from the National Ice Center (NIC). These products are constructed by NIC analysts using various imagery sources with resolutions down to 50 meters per pixel. Imagery sources include but are not limited to ENVISAT, DMSP OLS, AVHRR, and RADARSAT. NIC ice analysts provide the necessary value-added interpretation of these imagery sources to properly identify the extent of the ice edge contours.

Other Resources: