MODIS/Aqua Land Surface Temperature/Emissivity 5-Min L2 Swath 1km V041Entry ID: MYD11_L241
Abstract: The MODIS/Aqua version-041 (V41) products use a modified version-4 (V4) LST algorithm and version-5 (V5) data inputs. The V41 products primarily address underestimation problems in the V5 Climate Modeling Grid (CMG) products. Recent validation activities reveal that the V5 CMG products underestimate LSTs up to 6K especially in desert and semi-arid regions. The production date for this collection ... starts from MODIS/Aqua data acquisition date 2007-001. This beginning date is driven by the availability of the MODIS V5 data inputs (level-1B radiance data, geolocation data, cloud mask, atmospheric profiles, and land and snow cover data).
The MODIS/Aqua V41 level-2 LST/E data (Short name: MYD11_L2) incorporate 1-km pixels, which are produced daily at 5-minute increments using the generalized split-window LST algorithm. This algorithm is optimally used to separate ranges of atmospheric column water vapor and lower boundary air surface temperatures into tractable sub-ranges. The surface emissivities in bands 31 and 32 are estimated from land cover types.
The V41 MYD11_L2 data set comprises swath data obtained in 5-minute sensor collection periods, and includes the following Science Data Set (SDS) layers: LST, quality control assessment, error estimates, bands 31 and 32 emissivities, zenith angle of the pixel view, observation time, and the geographic coordinates for every five scan lines and samples. Produced daily, MYD11_L2 is an unprojected level-2 data set, which provides the input for the level-3 products.
The V41 Aqua/MODIS LST/E products, including MYD11_L2 are validated to Stage-1. Further details regarding MODIS land product validation for the LST/E products is available from the following URL: http://landval.gsfc.nasa.gov/ProductStatus.php?ProductID=MYD11
The V41 MYD11_L2 product’s acquisition range started January 1, 2007 (2007-001) and will continue until the V6 reprocessing completes in late 2010. The V41 LST products from 2007-001 will remain consistent with similar products from V4, and hence are amenable to combine them in a time series analysis. Users should exercise caution, and not mix the V4.x (i.e., V4 and V41) and V5 LST products in their analysis.
V041 Data Set Characteristics:
Area: ~2330 km x 2000 km lat/long
Image Dimensions: 2030 x 1354 rows/columns
File Size: ~26 MB
Resolution: 1000 meters
Projection: None (swath data)
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 9
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Data Set Citation
Dataset Originator/Creator: Land Processes Distributed Active Archive Center (LP DAAC)
Dataset Title: MODIS/Aqua Land Surface Temperature/Emissivity 5-Min L2 Swath 1km V041
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: U.S. Geological SurveyOnline Resource: https://lpdaac.usgs.gov
Start Date: 2007-01-01
Latitude Resolution: 1 km
Longitude Resolution: 1 km
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Quality For more information on potential sensor-related anomalies, consult the following URL: http://landweb.nascom.nasa.gov/cgi-bin/QA_WWW/newPage.cgi?fileName=...
Access Constraints None
Use Constraints None
Data Set Progress
Distribution Media: HTTP
Distribution Size: ~6 MB compressed (V005)
Distribution Format: HDF-EOS
Role: TECHNICAL CONTACT
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
LP DAAC User Services U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center 47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Moderate Resolution Imaging Spectroradiometer (MODIS) publications written by the MODIS Science Team: [available online at http://modis.gsfc.nasa.gov/sci_team/pubs/]
National Aeronautics and Space Administration, 2000, MODIS data products catalog (EOS AM platform): [Greenbelt, Maryland], Goddard Space Flight Center, http://modis.gsfc.nasa.gov/data/dataprod/index.php.
National Aeronautics and Space Administration, 2000, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 256 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/sites/default/files/publications/data_p...].
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2010-06-21
Last DIF Revision Date: 2013-11-27