The Suomi-NPP spacecraft went into safe mode on 8/3/21 while executing a planned re-enabling of the star trackers as part of the Star Catalog loads. All of the instruments, including VIIRS, were recovered on 8/4/2021, but the VIIRS science team has determined that the data from 8/3/21 through 9/13/21 need to be reprocessed. That reprocessing is currently in progress.
Data Set ID: 

VIIRS/NPP Sea Ice Cover 6-Min L2 Swath 375 m, Version 1

This data set reports the location of sea ice cover derived from radiance data acquired by the Visible Infrared Imager Radiometer Suite (VIIRS). Following the approach used by MODIS, Sea Ice is detected using the Normalized Difference Snow Index. The VIIRS instrument flies onboard the Suomi National Polar-orbiting Partnership (NPP) satellite.

This is the most recent version of these data.

Version Summary: 

New data set

COMPREHENSIVE Level of Service

Data: Data integrity and usability verified; data customization services available for select data

Documentation: Key metadata and comprehensive user guide available

User Support: Assistance with data access and usage; guidance on use of data in tools and data customization services

See All Level of Service Details

Data Format(s):
  • NetCDF
Spatial Coverage:
N: 90, 
S: -90, 
E: 180, 
W: -180
Spatial Resolution:
  • 375 m x 375 m
Temporal Coverage:
  • 19 January 2012
Temporal Resolution6 minuteMetadata XML:View Metadata Record
Data Contributor(s):Mark Tschudi, George Riggs, Dorothy Hall, Miguel Román

Geographic Coverage

Other Access Options

Other Access Options


As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Tschudi, M., G. Riggs, D. K. Hall, and M. O. Román. 2017. VIIRS/NPP Sea Ice Cover 6-Min L2 Swath 375 m, Version 1. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: [Date Accessed].

It appears your Web browser is not configured to display PDF files. Download adobe Acrobat or click here to download the PDF file.


What data subsetting, reformatting, and reprojection services are available for VIIRS data?
The following table describes the data subsetting, reformatting, and reprojection services that are currently available for VIIRS data via the NASA Earthdata Search tool. Short Name Title Parameter Subsetting Spatial Subsetting  *... read more
How does VIIRS snow and sea ice data compare to MODIS
Data products from VIIRS are created to be similar to MODIS data products to ensure the continuity needed for the development of snow and sea ice climate records beyond the life expectancy of MODIS. The temporal resolution and spatial extent are identical in MODIS and VIIRS. A benefit of VIIRS snow... read more
Missing and delayed VIIRS data
The lag time between observations and availability of VIIRS products is only a few days. Lag time may be extended due to satellite maneuvers and extra quality assurance required for the geolocation data after the maneuver. The... read more

How To

Search, order, and customize NSIDC DAAC data with NASA Earthdata Search
NASA Earthdata Search is a map-based interface where a user can search for Earth science data, filter results based on spatial and temporal constraints, and order data with customizations including re-formatting, re-projecting, and spatial and parameter subsetting. Thousands of Earth science data... read more
Filter and order from a data set web page
Many NSIDC data set web pages provide the ability to search and filter data with spatial and temporal contstraints using a map-based interface. This article outlines how to order NSIDC DAAC data using advanced searching and filtering.  Step 1: Go to a data set web page This article will use the... read more
NSIDC DAAC Data Subscription Requests
Data subscriptions are available for select NSIDC DAAC data collections (found below). Our subscription service automatically sends you new data as they are delivered from active NASA satellite missions. The service cannot be applied to past data already archived at NSIDC. This service is... read more