Data Summaries: Passive Microwave Sea Ice Products

NSIDC archives and distributes a variety of passive microwave sea ice products. The products are grouped in the following categories:

For sea ice products derived from visible and infrared sensors, or for sea ice field observations and operational charts, refer to:

Passive Microwave Sea Ice Concentrations

Polar Stereographic Sea Ice Projection

Title Spatial Coverage Temporal Coverage Spatial Resolution Temporal Resolution Parameter(s)

AMSR-E/Aqua Daily L3 12.5 km Brightness Temperature, Sea Ice Concentration, & Snow Depth Polar Grids, Version 3 (AE_SI12)

N: 90, S: 30.98, E: 180, W: -180
N: -39.23, S: -90, E: 180, W: -180
2002/06/01 to 2011/10/04 12.5 km 1 day, 5 day Brightness Temperature, Sea Ice Concentration, Snow Depth

AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids, Version 3 (AE_SI25)

N: 90, S: 30.98, E: 180, W: -180
N: -39.23, S: -90, E: 180, W: -180
2002/06/01 to 2011/10/04 25 km 1 day Brightness Temperature, Sea Ice Concentration

Sea Ice Index, Version 2 (G02135)

N: -39.23, S: -90, E: 180, W: -180
N: 90, S: 30.98, E: 180, W: -180
1978/10/26 25 km 1 day Ice Extent, Ice Growth/Melt, Sea Ice Concentration

Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH), Version 1 (G02186)

N: 90, S: 0, E: 180, W: -180 2006/10/01 4 km 1 day Ice Edges, Ice Extent, Ice Growth/Melt

NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 2 (G02202)

N: 89.84, S: 31.1, E: 180, W: -180
N: -39.36, S: -89.84, E: 180, W: -180
1978/10/26 to 2014/12/31 25 km 1 day Sea Ice Concentration

Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations, Version 1 (NSIDC-0007)

N: 90, S: 30, E: 180, W: -180
N: -39, S: -90, E: 180, W: -180
1978/10/25 to 1987/08/20 25 km 2 day Brightness Temperature, Ice Extent, Sea Ice Concentration

Nimbus-5 ESMR Polar Gridded Sea Ice Concentrations, Version 1 (NSIDC-0009)

N: -39.23, S: -90, E: 180, W: -180
N: 90, S: 30.98, E: 180, W: -180
1972/12/13 to 1977/05/11 25 km 1 day, 1 month Sea Ice Concentration

Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 1 (NSIDC-0051)

N: -39.23, S: -90, E: 180, W: -180
N: 90, S: 30.98, E: 180, W: -180
1978/10/26 to 2015/12/31 25 km 1 day, 1 month Sea Ice Concentration

Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS, Version 2 (NSIDC-0079)

N: -39, S: -90, E: 180, W: -180
N: 90, S: 30, E: 180, W: -180
1978/10/26 to 2014/12/31 25 km 1 day, 1 month Sea Ice Concentration

Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations, Version 1 (NSIDC-0081)

N: 90, S: 30.98, E: 180, W: -180
N: -39.23, S: -90, E: 180, W: -180
2015/01/01 to 2016/08/25 25 km 1 day Sea Ice Concentration

EASE-Grid Sea Ice Projection

Title Spatial Coverage Temporal Coverage Spatial Resolution Temporal Resolution Parameter(s)

Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 4 (NISE)

N: 90, S: -90, E: 180, W: -180 1995/05/04 1 day Ice Extent, Sea Ice Concentration, Snow Cover

Other Passive Microwave Sea Ice Products

Title Spatial Coverage Temporal Coverage Spatial Resolution Temporal Resolution Parameter(s)

Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4 (NSIDC-0046)

N: 90, S: 0, E: 180, W: -180 1966/10/03 to 1978/10/23
1978/10/23 to 2015/12/31
25 km 7 day Ice Extent, Snow Cover

Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3 (NSIDC-0105)

N: 90, S: 30, E: 180, W: -180 1979/01/01 to 2012/12/31 25 km 12 month Snow Melt

Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors, Version 3 (NSIDC-0116)

N: -53.2028, S: -90, E: 180, W: -180
N: 90, S: 48.4, E: 180, W: -180
1978/10/25 to 2015/05/31 25 km 1 month, 7 day, 1 day Ice Velocity, Sea Ice Motion

Meltpond2000 Polarimetric Scanning Radiometer Sea Ice Brightness Temperatures, Version 1 (NSIDC-0208)

N: 76.42194, S: 68.96694, E: -63.19694, W: -105.02194 2000/06/26 to 2000/07/06 Brightness Temperature, Ice Temperature

Passive Microwave Sea Ice Trends