National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format

Metadata Updated: February 3, 2017

The U.S. National Ice Center (NIC) is an inter-agency sea ice analysis and forecasting center comprised of the Department of Commerce/NOAA, the Department of Defense/U.S. Navy, and the Department of Homeland Security/U.S. Coast Guard components. Since 1972, NIC has produced Arctic and Antarctic sea ice charts. This data set is comprised of 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 2007; 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 the entire period of record as well as for 10-year and 5-year periods. These climatologies and the charts from which they are derived are provided in the 25-km Equal-Area Scalable Earth Grid (EASE-Grid) binary (.bin) format. The climatologies are also available in ArcGIS geodatabases (.mdb), and GIF format browse files (.gif) are also provided.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 at the end of this documentation), but it lacks the consistency of some passive microwave time series.

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Dates

Metadata Date August 13, 2015
Metadata Created Date September 26, 2015
Metadata Updated Date February 3, 2017
Reference Date(s) January 1, 2006 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date August 13, 2015
Metadata Created Date September 26, 2015
Metadata Updated Date February 3, 2017
Reference Date(s) January 1, 2006 (publication)
Responsible Party (Principal Investigator); University of Colorado at Boulder (Principal Investigator); National Snow and Ice Data Center (Principal Investigator, Point of Contact)
Contact Email
Access Constraints Access Constraints : none, Use Constraints : none
Bbox East Long 180
Bbox North Lat 90
Bbox South Lat 45
Bbox West Long -180
Coupled Resource
Frequency Of Update asNeeded
Guid noaa.ncei.nsidc.G02172
Harvest Object Id 54e8d2cd-509b-46eb-bb18-3802ddbc6707
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence
Metadata Language
Metadata Type geospatial
Progress underDevelopment
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 19720101
Temporal Extent End 20071231

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