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Description

MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km Near Real Time (NRT), short name MYD29, contains the following fields: sea ice by reflectance, sea ice by reflectance pixel quality assurance (QA), ice surface temperature (IST), IST pixel QA, sea ice by IST, combined sea ice, latitudes, and longitudes in HDF-EOS format, along with corresponding metadata. Latitude and longitude geolocation fields are at 5 km resolution, while all other fields are at 1 km resolution. The sea ice algorithm uses a Normalized Difference Snow Index (NDSI) modified for sea ice to distinguish sea ice from open ocean, based on reflective and thermal characteristics.

Product Summary

Platforms
Aqua
Instruments
MODIS
Spatial Extent
N: 90 S: -90 E: 180 W: -180
Spatial Resolution
1 Kilometers x 1 Kilometers
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2021-02-07
Data Partner
Land, Atmosphere Near real-time Capability for EOS (LANCE) Moderate Resolution Imaging Spectroradiometer (MODIS) (NASA/GSFC/EOS/ESDIS/LANCE MODIS)
Concept ID
c2007624533-lancemodis
Data State
ACTIVE
Processing Level
2
Published

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

MODIS Science Team. (2021). MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km NRT [Data set]. NASA LANCE MODIS at the MODAPS. https://doi.org/10.5067/MODIS/MYD29.NRT.061 Date Accessed: 2025-07-08

Data Center Citation

LANCEMODIS. 2021. MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km NRT. MODAPS at NASA/GSFC: The Land, Atmosphere Near real-time Capability for EOS (LANCE).

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