Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors, Version 4
Data set id:
NSIDC-0116
DOI: 10.5067/INAWUWO7QH7B
This is the most recent version of these data.
Version Summary
Version Summary
Changes to this version include:
Data are provided in georeferenced netCDF format rather than ASCII and raw binary files
Merge 15 highest-weighted rather than 15 closest input vectors
Improved filtering of SSMI inputs
Each buoy provides one daily motion estimate instead of separate noon and midnight estimates
Monthly ice motion estimates are no longer provided
Data are provided in georeferenced netCDF format rather than ASCII and raw binary files
Merge 15 highest-weighted rather than 15 closest input vectors
Improved filtering of SSMI inputs
Each buoy provides one daily motion estimate instead of separate noon and midnight estimates
Monthly ice motion estimates are no longer provided
Overview
This data set contains daily and weekly sea ice motion vectors, as well as browse images representing the weekly data. Input data sources, derived from AVHRR, AMSRE, SMMR, SSMI, and SSMI/S sensors; IABP buoys; and NCEP/NCAR Reanalysis forecasts, used to generate the daily and weekly sea ice motion estimates are also included. For more recent data, see the Quicklook Arctic Weekly EASE-Grid Sea Ice Motion Vectors data set (https://nsidc.org/data/nsidc-0748).
Parameter(s):
ICE VELOCITYSEA ICE MOTION
Platform(s):
AQUA, BUOYS, DMSP 5D-2/F11, DMSP 5D-2/F13, DMSP 5D-2/F8, DMSP 5D-3/F17, NOAA-11, NOAA-12, NOAA-14, NOAA-9, Nimbus-7
Sensor(s):
AMSR-E, AVHRR, DRIFTING BUOYS, SMMR, SSM/I, SSMIS
Data Format(s):
NetCDF, PNG
Temporal Coverage:
25 October 1978 to 31 December 2023
Temporal Resolution:
- 1 day
Spatial Resolution:
- varies
- 25 km
- varies
- 25 km
Spatial Reference System(s):
NSIDC EASE-Grid North
EPSG:3408
NSIDC EASE-Grid South
EPSG:3409
Spatial Coverage:
N:
90
S:
29.7
E:
180
W:
-180
N:
-37
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
Data Access & Tools
A free NASA Earthdata Login account is required to access these data. Learn More
Documentation
User Guide
General Resources
Sensor and Instrument Information
Help Articles
How to Articles
This article describes how to convert the u (horizontal) and v (vertical) components from the ice motion data set to East and North components on the Earth's surface. Instructions for both the Northern and Southern Hemispheres are described below:
This article describes the actions to perform in order work with NSIDC-0116 in ArcGIS. At the time of writing, this tutorial is relevant for ArcMap10.5 and earlier.
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system. We provide basic command line Wget and curl instructions for HTTPS file system downloads below.