MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V041Entry ID: MOD11A141
Abstract: The MODIS/Terra 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 with MODIS/Terra data acquisition from 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/Terra V41 LST/E Daily L3 Global 1 km Grid (Short name: MOD11A1) products incorporate 1 km pixels, which are produced daily 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 Terra/MOD11A1 products are projected in a Sinusoidal grid by mapping the level-2 LST product (MOD11_L2) on 1 km (precisely 0.928 km) grids. The MOD11A1 product comprises the following Science Data Set (SDS) layers for daytime and nighttime observations: LSTs, quality control assessments, observation times, view zenith angles, clear sky coverages, and bands 31 and 32 emissivities from land cover types.
The V41 MODIS LST/E products, including MOD11A1, are validated to Stage-2. Further details regarding MODIS land product validation for the LST/E products are available from the MODIS land team validation site referenced under the "Related URLs" section.
The V41 MOD11A1 product’s acquisition range started January 1, 2007 (2007-001) and will continue until the V6 reprocessing completes. The 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: ~1100 x 1100 km
Image Dimensions: 1200 x 1200 rows/columns
File Size: ~2.2 MB
Resolution: ~1 kilometer
Data Format: HDF-EOS
Science Data Sets (SDS HDF Layers): 12
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Data Set Citation
Dataset Originator/Creator: Land Processes Distributed Active Archive Center (LP DAAC)
Dataset Title: MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V041
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: U.S. Geological Survey
Version: V041Online Resource: https://lpdaac.usgs.gov/
Start Date: 2007-01-03
Latitude Resolution: 1000 meters
Longitude Resolution: 1000 meters
Horizontal Resolution Range: 500 meters - < 1 km
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: V005: 2.1 MB; V041: 2.2 MB; V004: 24 MB
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, revised 2004, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 261 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: 2010-06-10
Last DIF Revision Date: 2013-11-27