MODIS/Aqua Near Real Time (NRT) Sea Ice Extent 5-Min L2 Swath 1km, Version 005
Entry ID: MYD29_C5_NRT

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Abstract: MODIS/Aqua Near Real Time (NRT) Sea Ice Extent 5-Min L2 Swath 1km (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 ... View entire text
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Description: Near real-time (NRT) data are available from MODAPS for certain Aqua and Terra MODIS L0, L1, L2, L2G, and L3 products. Whereas the standard MODIS forward processing acquires 2-hour L0 files for Aqua and Terra from EDOS within 7-8 hours of real time, LANCE-MODIS acquires session-based L0 files from EDOS and the end of the session is available within 10-30 minutes after real time.
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Caption:  MYD29 Version 4 data, 05 February 2004
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: D. Hall, V. Salomonson
Dataset Title: MODIS/Aqua Near Real Time (NRT) Sea Ice Extent 5-Min L2 Swath 1km, Version 005
Version: 005
Online Resource:
Temporal Coverage
Start Date: 2014-12-13
Stop Date: 2014-12-20
Data Resolution
Temporal Resolution: 5-min
Temporal Resolution Range: 1 minute - < 1 hour
Quality In MYD29 Version 4 (V004) data, the sea ice algorithm uses Aqua/MODIS band 7. Good quality has been observed in the sea ice maps; however, investigation of effects of the switch to band 7 is continuing. The cloud mask product, MYD35_L2, used as input to the MYD29 algorithm also changed to use of band 7. The effect of that change relative to sea ice/cloud discrimination is being investigated. The ... View entire text
Data Set Progress
Data Center
MODIS Adaptive Processing System (MODAPS) Services, Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA Supplemental Info
Data Center URL:
Dataset ID: MYD29

Data Center Personnel
Phone: 1-800-596-8132
Fax: 301-867-2151
Contact Address:
MODAPS User Support Team
Mail Code: 619
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Distribution Media: upon request
Distribution Size: 0.5-6.0
Distribution Format: HDF-EOS
Phone: 301-731-2923
Email: neal.k.devine at
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Earth Science Data and Information System (ESDIS). 1996. EOS ground system (EGS) systems and operations concept. Greenbelt, MD: Goddard Space Flight Center. Hall, D. K., A. B. Tait, G. A. Riggs, and V. V. Salomonson. 1998. Algorithm Theoretical Basis Document (ATBD) for the MODIS Snow-, Lake Ice- and Sea Ice-Mapping Algorithms (Version 4.0). Electronic version is available online at ... View entire text
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-06-26
Last DIF Revision Date: 2014-02-25
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