MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km, Version 61 (MOD29)
Data set:
MOD29
This is the most recent version of these data.
Version Summary
Version Summary
The C61 science algorithm is the same as the C6 algorithm. Any improvement to the C61 product compared to the C6 product comes from enhancements to the calibration approach used to generate the input products and from updates to the polarization correction used in C61 reprocessing.
Overview
This global Level-2 (L2) product provides daily sea ice extent and ice surface temperature. The data are derived from Level-1B radiances acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) on board the Terra satellite. Each data granule contains 5 minutes of swath data observed at a resolution of 1000 m.
The terms "Version 61" and "Collection 6.1" are used interchangeably in reference to this release of MODIS data.
Parameter(s):
ICE EXTENT
ICE TEMPERATURE
Platform(s):
Terra
Sensor(s):
MODIS
Data Format(s):
HDF-EOS2
Temporal Coverage:
24 February 2000 to present
Temporal Resolution:
5 minute
Spatial Resolution:
1 km
1 km
Spatial Coverage:
N:
90
S:
-90
E:
180
W:
-180
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
Product Specification Documents
Help Articles
How To
Many NSIDC DAAC data sets can be accessed using the NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.
Users have the option to
To convert HDF5 files into binary format you will need to use the h5dump utility, which is part of the HDF5 distribution available from the HDF Group. How you install HDF5 depends on your operating system.
Data subscriptions are available for select NSIDC DAAC data collections. Once signed up, the subscription service automatically sends you new data as they are delivered from active NASA satellite missions.
All 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, using wget or curl. Basic command line instructions are provided in the article below.
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.
NASA Worldview is a map interface that allows users to interactively browse imagery, create visualizations, and download the underlying data.
NASA's Global Imagery Browse Services (GIBS) provides up to date, full resolution imagery for selected NSIDC DAAC data sets.
Getting started
The lag time between observations and availability of MODIS 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.
This short article describes the customization services available for ICESat-2 data using Earthdata Search