org.nsidc:G02172
National Ice Center, Florence Fetterer and Charles Fowler
20060101
National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format
N/A
Boulder, Colorado USA
National Snow and Ice Data Center (NSIDC)
http://nsidc.org/data/g02172.html
The U.S. National Ice Center (NIC) is an inter-agency sea ice analysis and forecasting center comprised of Dept. of Commerce/NOAA, Dept. of Defense/U.S. Navy, and Dept. of Homeland Security/U.S. Coast Guard components. Since 1972, NIC has produced Arctic and Antarctic sea ice charts. This data set is an Arctic sea ice concentration climatology derived from the NIC weekly or biweekly operational ice chart time series. The charts used in the climatology are from 1972 through 2004, and the monthly climatology products are median, maximum, minimum, first quartile, and third quartile concentrations, as well as frequency of occurrence of ice at any concentration for 33 year, 10 year, and 5 year periods. These climatologies and the charts from which they are derived are provided in 25 km EASE-Grid (gridded binary). Ice extent can be derived from concentration by summing the number of equal area EASE-Grid cells. GIF browse files are also provided. The climatologies are also made available in a Geographical Information System (GIS) compatible format.
NIC charts are produced through the analyses of available in situ, remote sensing, and model data sources. They are generated primarily for mission planning and safety of navigation. NIC charts generally show more ice than do passive microwave derived sea ice concentrations, particularly in the summer when passive microwave algorithms tend to underestimate ice concentration. The record of sea ice concentration from the NIC series is believed to be more accurate than that from passive microwave sensors, especially from the mid-1990s on (see references in the documentation), but it lacks the consistency of some passive microwave time series.
scientific research
National Ice Center, Florence Fetterer and Charles Fowler
20060101
National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format
Boulder, Colorado USA
National Snow and Ice Data Center (NSIDC)
http://nsidc.org/data/docs/noaa/g02172_nic_charts_climo_grid/index.html
1972
2004
publication date
Unknown
-180
180
90
45
NASA Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
NASA Global Change Master Directory (GCMD) Instrument Keywords
AVHRR > Advanced Very High Resolution Radiometer
OLS > Operational Linescan System
SAR > Synthetic Aperture Radar
SCATTEROMETERS
SMMR > Scanning Multichannel Microwave Radiometer
SSM/I > Special Sensor Microwave/Imager
VISUAL OBSERVATIONS
NASA Global Change Master Directory (GCMD) Platform Keywords
AIRCRAFT
MODELS
SATELLITES
SHIPS
ISO 19115 Topic Categories
environment
oceans
None
Arctic Sea Ice
Sea Ice
Sea Ice Concentration
Sea Ice Stage Of Development
Sea Ice Variability
NASA Global Change Master Directory (GCMD) Location Keywords
Geographic Region > Arctic
Ocean > Arctic Ocean
2
NASA Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
NASA Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
None
None
NSIDC User Services
mailing
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
(303) 492-6199
(303) 492-2468
nsidc@nsidc.org
National Oceanic and Atmospheric Administration
NSIDC NOAA USER SERVICES
mailing
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
+1 (303) 492-6199
+1 (303) 492-2468
nsidc@nsidc.org
G02172
NSIDC cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NSIDC makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
binary
ftp://sidads.colorado.edu/pub/DATASETS/NOAA/G02172/
None
20070822
NSIDC NOAA USER SERVICES
National Oceanic and Atmospheric Administration
mailing
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder
CO
80309-0449
USA
+1 (303) 492-6199
+1 (303) 492-2468
nsidc@nsidc.org
FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata
FGDC-STD-012-2002