[Parameters: Topic='OCEANS', Term='SEA ICE', Variable_Level_1='ICE EXTENT']
Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH)Entry ID: G02186
Abstract: The Multisensor Analyzed Sea Ice Extent Northern Hemisphere (MASIE-NH) products provide measurements of daily sea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection. Products include an ASCII text file of sea ice extent values in square km over the entire Northern Hemisphere with 16 separate Arctic regions identified, time ... series plots of the 16 regions, and image files that visually show where the sea ice is. The MASIE-NH imagery are provided at a nominal 4 km resolution. The input data comes from the 4 km Interactive Multisensor Snow and Ice Mapping System (IMS) snow and ice product produced by the National Ice Center (NIC). NIC utilizes visible imagery, passive microwave data, and NIC weekly analysis products to create their data product. The MASIE-NH products are distributed in a number of formats including ASCII text, GeoTIFF, PNG, shapefiles, and Google Earth files and are available for the previous four weeks (28 days). The most recent days worth of imagery plus the ASCII text data file are provided via the MASIE Web site. An archive of the previous four weeks of imagery can be obtained via FTP. Note: MASIE may look like several other sea ice products distributed at NSIDC and elsewhere, but its source data and intended uses are different. If intended and appropriate uses of the data are not clear after reading the documentation, please contact "mailto:email@example.com" NSIDC User Services.
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Data Set Citation
Dataset Originator/Creator: National Ice Center (NIC) and NSIDC
Dataset Title: Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE-NH)
Dataset Release Date: 2010-12-14
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: National Snow and Ice Data Center (NSIDC)Online Resource: http://nsidc.org/data/g02186.html
Latitude Resolution: 4 km
Longitude Resolution: 4 km
ISO Topic Category
Jones, J. M., and M. Widmann, 2003: Instrument-and tree-ring estimates of the Antarctic Oscillation. J. Climate, 16, 3511-3524.
Marshall, G. J., 2003: Trends in the Southern Annular Mode from observations and reanalyses. J. Climate, 16, 4134-4143.
Jones, J. M., and M. Widmann, 2004: Atmospheric science - Early peak in Antarctic Oscillation index. Nature, 432, 290-291.
Marshall, G. J., 2007: Half-century seasonal relationships between the Southern Annular Mode and Antarctic temperatures. Int. J. Climatol., 27, 373-383.
Visbeck, M., 2009: A station-based Southern Annular Mode index from 1884 to 2005. J. Climate, 22, 940-950.
Jones, J. M., R. L. Fogt, M. Widmann, G. J. Marshall, P. D. Jones, and M. Visbeck, 2009: Historical SAM Variability. Part I: Century length seasonal reconstructions. J. Climate, in press.
Fogt, R. L., J. Perlwitz, A. J. Monaghan, D. H. Bromwich, J. M. Jones, and G. J. Marshall, 2009: Historical SAM Variability. Part II: 20th century variability and trends from reconstructions, observations, and the IPCC AR4 Models. J. Climate, revised.
Creation and Review Dates
DIF Creation Date: 2010-10-14
Last DIF Revision Date: 2012-02-15