Earth  ID: 4204

Small Multiples of NSIDC North Pole Sea Ice Extent

This is a still image generated from National Snow and Ice Data Center (NSIDC) north pole sea ice extent images. These images are arranged in a grid pattern with the years across the top from 1979 to 2014 and the months running down the image from January to December.

By glancing at the image, the viewer can quickly see the periods during the year when north pole sea ice extent is at minimum and maximum. It is also easy to see how the sea ice has changed over the years. There is no data for December 1987 and January 1988; these dates are left black.


Visualization Credits

Greg Shirah (NASA/GSFC): Lead Animator
Laurence Schuler (ADNET): Project Support
Ian Jones (ADNET): Project Support
Please give credit for this item to:
NASA's Scientific Visualization Studio

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Data Used:
Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data
Data Compilation - NSIDC - 01/1979 through 12/2014
This data set is generated from brightness temperature data derived from the following sensors: the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR), the Defense Meteorological Satellite Program (DMSP) -F8, -F11 and -F13 Special Sensor Microwave/Imagers (SSM/Is), and the DMSP-F17 Special Sensor Microwave Imager/Sounder (SSMIS). The data are provided in the polar stereographic projection at a grid cell size of 25 x 25 km. This product is designed to provide a consistent time series of sea ice concentrations (the fraction, or percentage, of ocean area covered by sea ice) spanning the coverage of several passive microwave instruments. To aid in this goal, sea ice algorithm coefficients are changed to reduce differences in sea ice extent and area as estimated using the SMMR and SSM/I sensors. The data are generated using the NASA Team algorithm developed by the Oceans and Ice Branch, Laboratory for Hydrospheric Processes at NASA Goddard Space Flight Center (GSFC).
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

DLESE >> Cryology
SVS >> Ice
GCMD >> Earth Science >> Cryosphere >> Sea Ice
NASA Science >> Earth

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version