G02156
IMS Daily Northern Hemisphere Snow and Ice Analysis at 4 km and 24 km Resolution
NOAA/NESDIS/OSDPD/SSD
IMS Daily Northern Hemisphere Snow and Ice Analysis at 4 km and 24 km Resolution
2004-12-01
Boulder, Colorado USA
NSIDC: National Snow and Ice Data Center
http://nsidc.org/data/g02156.html
http://dx.doi.org/10.7265/N52R3PMC
Investigator
Unknown
NOAA/NESDI
Technical Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199 x
1 303 492-2468 x
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
EARTH SCIENCE
Cryosphere
Sea Ice
Sea Ice Concentration
EARTH SCIENCE
Cryosphere
Snow/Ice
Ice Extent
EARTH SCIENCE
Cryosphere
Snow/Ice
Snow Cover
EARTH SCIENCE
Oceans
Sea Ice
Sea Ice Concentration
EARTH SCIENCE
Terrestrial Hydrosphere
Snow/Ice
Ice Extent
EARTH SCIENCE
Terrestrial Hydrosphere
Snow/Ice
Snow Cover
Climatology/Meteorology/Atmosphere
Oceans
IMS
Interactive Multisensor Snow and Ice Mapping System
NOAA
NOAA SSD snow products
Northern Hemisphere
Numerical Weather Prediction
AVHRR
Advanced Very High Resolution Radiometer
GOES I-M IMAGER
SSM/I
Special Sensor Microwave/Imager
DMSP
Defense Meteorological Satellite Program
GEOSTATIONARY SATELLITES
NOAA POES
NOAA Polar Orbiting Environmental Satellites
SATELLITES
1997-02-01
in work
0
90
-180
180
GEOGRAPHIC REGION
NORTHERN HEMISPHERE
1 day
The quality of the snow and ice cover charts will depend on the availability of clear sky imagery, the georegistration of that imagery, the quality of other input data sources, and the experience of the analyst. Regions covered by cloud during the 24-hour analysis period are generally mapped as persistence, taking lower resolution passive microwave data and surface observations into account where possible. Sub-grid scale features may not be detected.
English
NSIDC_NOAA
NSIDC
National Snow and Ice Data Center
http://nsidc.org
Data Center Contact
NSIDC
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
NSIDC_NOAA
NSIDC National Oceanic and Atmospheric Administration
http://nsidc.org/noaa/
Data Center Contact
NSIDC NOAA
User Services
nsidc@nsidc.org
1 303 492-6199
1 303 492-2468
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
FTP
36913 KB
GeoTIFF
FTP
20 - 60 KB
ASCII Text
GIF
Armstrong, R.L. and M.J. Brodzik. 2002. Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent Version 2. Boulder, CO, USA: National Snow and Ice Data Center. CD-ROM.
National Operational Hydrologic Remote Sensing Center. 2004. SNODAS Data Products at NSIDC. Boulder, CO: National Snow and Ice Data Center. Digital media.
Ramsey, B. H., 1995. An Overview of NOAA/NESDISs Interactive Multisensor Snow and Ice Mapping System. Proceedings of 1995 First Moderate Resolution Imaging Spectrometer (MODIS) Workshop, Greenbelt, MD, National Aeronautics and Space Administration Conference Publication 3318: 23-27.
Ramsey, B. H., 1998. The Interactive Multisensor Snow and Ice Mapping System. Hydrological Processes. Vol. 12: 1537-1546.
Robinson, D.A. 2000. Weekly Northern Hemisphere snow maps: 1966-1999. 12th Conference on Applied Climatology, Asheville, NC, American Meteorological Society. 12-15.
Robinson, D.A. and A. Frei. 2000. Seasonal variability of northern hemisphere snow extent using visible satellite data. Professional Geographer 51: 307-314.
Robinson, D.A., J.D. Tarpley and B. Ramsay. 1999. Transition from NOAA weekly to daily hemispheric snow charts. Proceedings of the 10th Symposium on Global Change, Dallas, TX, American Meteorological Society. 487-490.
The National Environmental Satellite, Data, and Information Service (NESDIS), part of the National Oceanic and Atmospheric Administration (NOAA), has an extensive history of monitoring snow and ice coverage. Accurate monitoring of global snow and ice cover is a key component in the study of climate and global change as well as daily weather forecasting. By inspecting environmental satellite imagery, analysts from the Satellite Analysis Branch (SAB) at the Office of Satellite Data Processing and Distribution (OSDPD), Satellite Services Division (SSD), created a Northern Hemisphere snow and ice map from November 1966 until the National Ice Center (NIC) took over production in 2008. Initially, the product was produced with a nominal spatial resolution of 190 km and a temporal resolution of seven days. In 1997, the Interactive Multisensor Snow and Ice Mapping System (IMS) became operational, giving the satellite analysts improved access to imagery and drawing tools. Since the inception of IMS, the charts have been produced daily at a nominal resolution of 24 km (1024 x 1024 grid). Beginning in February 2004, further improvements in computer speed and imagery resolution allowed for the production of a higher resolution daily product with a nominal resolution of 4 km (6144 x 6144 grid). NSIDC archives and distributes the 24-km and the 4-km IMS product in ASCII text format from February 1997 to present and February 2004 to present, respectively. NSIDC also distributes browse images in GIF format and latitude and longitude grids for these products. In June 2006, NSIDC started distributing 4-km GeoTIFF files for use with GIS applications.
Note: The IMS product is considered operational, but NIC does not guarantee availability or timely delivery of data via the NIC Web server, and NSIDC does not guarantee availability of this product via the NSIDC Web server. These servers should not be used to support operational observation, forecasting, emergency, or disaster mitigation operations, either public or private. Users with real-time operational needs should visit the <a href="http://www.natice.noaa.gov/">NIC Web site</a> and contact the National Ice Center Liaison to request access to the operational server.
VIEW PROJECT HOME PAGE
http://www.ssd.noaa.gov/PS/SNOW/
NOAA SSD Snow Products
VIEW PROJECT HOME PAGE
http://nsidc.org/data/seaice/
Sea Ice Products at NSIDC
VIEW RELATED INFORMATION
http://nsidc.org/data/g01962.html
Environmental Working Group Joint U.S.-Russian Arctic Sea Ice Atlas
VIEW RELATED INFORMATION
http://nsidc.org/data/g01962.html
Environmental Working Group Joint US-Russian Sea Ice Atlas
VIEW RELATED INFORMATION
http://nsidc.org/data/nsidc-0046.html
Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent Version 2
VIEW RELATED INFORMATION
http://nsidc.org/data/g02158.html
Snow Data Assimilation System (SNODAS) Data Products at NSIDC
VIEW RELATED INFORMATION
http://nsidc.org/data/g02158.html
Snow Data Assimilation System (SNODAS) Data Products at SNOw Data Assimilation System (SNODAS)Data Products at NSIDC
VIEW RELATED INFORMATION
http://nsidc.org/data/g02168.html
Timing and Statistics of Autumn and Spring Annual Snow Cover for the Northern Hemisphere
CEOS IDN DIF
9.7
2004-12-01
2013-03-07
Added DOI