MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 6km SIN Grid V006
The MOD11B1 Version 6 product provides daily per pixel Land Surface Temperature and Emissivity (LST&E) in a 1,200 by 1,200 kilometer (km) tile with a pixel size of 5,600 meters (m). Each MOD11B1 granule consists of the following layers for daytime and nighttime observations: LSTs, quality control assessments, observation times, view zenith angles, number of clear-sky observations, and emissivities from bands 20, 22, 23, 29, 31, and 32 (bands 31 and 32 are daytime only) along with the percentage of land in the tile. Unique to the MOD11B products are additional day and night LST layers generated from band 31 of the corresponding 1 km (MOD11_L2) (https://doi.org/10.5067/MODIS/MOD11_L2.006) swath product aggregated to the 6 km grid. Improvements/Changes from Previous Versions * Removed cloud-contaminated LSTs from Level 2 and Level 3 LST products. * Updated the coefficient look-up table (LUT) for the split-window algorithm with comprehensive regression analysis of Moderate Resolution Imaging Spectroradiometer (MODIS) simulation data in bands 31 and 32 over wide ranges of surface and atmospheric conditions, especially extending the upper boundary for (LST – Ts-air) in arid and semi-arid regions. Increased the overlap between various sub-ranges to reduce the sensitivity of the algorithm to uncertainties in the input data (i.e., column water vapor and air surface temperature from MOD07). * Made minor adjustments in the classification-based surface emissivity values, especially for bare soil and rocks land cover types. * Tuned the day/night algorithm by adjusting weights to improve performance in desert regions where the incorporated split-window algorithm may not work well. * Generated new gridded LST&E products with a 6 km spatial resolution for 8-day (MOD11B2) (https://doi.org/10.5067/MODIS/MOD11B2.006) and monthly (MOD11B3) (https://doi.org/10.5067/MODIS/MOD11B3.006) intervals in response to user community requests.
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| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Archive: HDF-EOSDistribution: HDF-EOS |
| Temporal Extent: | Platform(s): | Terra | |
| Data Center(s): | LP DAAC | Instrument(s): | MODIS |
| Version: | 006 | ||
- USER'S GUIDE: https://lpdaac.usgs.gov/documents/118/MOD11_User_Guide_V6.pdf, The technical information in the User's Guide enables users to interpret and use the data products.
- ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD): https://lpdaac.usgs.gov/documents/119/MOD11_ATBD.pdf, The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products.
- GENERAL DOCUMENTATION: https://ladsweb.modaps.eosdis.nasa.gov/filespec/MODIS/6/MOD11B1, The File Specification provides a description of the product file including Scientific Data Sets and their attributes.
Collection Information
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Purpose
Science Research -
Version Description
Collection Version 6 Processing and Reprocessing -
DOI
10.5067/MODIS/MOD11B1.006
https://doi.org
- Search for granules from this collection
Data Identification
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Processing Level
3
Sensor Measurements
- Quality
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Collection Progress
Active
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Access Constraints
None
Data Dates
| Creation | |
| Last Revision |
Related URLs
Other Descriptive Keywords
Additional Attributes
- Name: HORIZONTALTILENUMBER INT Description: Horizontal tile number of a grid, which increases from left to right.
- Name: N_GRAN_POINTERS INT Description: Total number of input granule files used to create this tile; number of elements in the InputGranulePointer archive metadata field.
- Name: QAFRACTIONGOODQUALITY FLOAT Description: Fraction of pixels with good quality of product
- Name: QAFRACTIONNOTPRODUCEDCLOUD FLOAT Description: Fraction of pixels without product due to cloud
- Name: QAFRACTIONNOTPRODUCEDOTHER FLOAT Description: Fraction of pixels without product due to reasons other than cloud
- Name: QAFRACTIONOTHERQUALITY FLOAT Description: Fraction of pixels with not so good quality of product
- Name: QAPERCENTGOODQUALITY INT Description: Percent of pixels with good quality
- Name: QAPERCENTNOTPRODUCEDCLOUD INT Description: Percent of pixels under cloud
- Name: QAPERCENTNOTPRODUCEDOTHER INT Description: Percent of pixels not produced due to some reason other than cloud
- Name: QAPERCENTOTHERQUALITY INT Description: Percent of pixels with not so good quality
- Name: VERTICALTILENUMBER INT Description: Vertical tile number of a grid, which increases from top to bottom.
- Name: TileID INT Description: MODIS Land tile identification number which represents a geographical area on the surface of the Earth bounded by latitude and longitude coordinates.
- Name: PROCESSVERSION STRING Description: Version of the process software that generated the product.
- Name: CLOUD_CONTAMINATED_LST_SCREENED STRING Description: Indicator of whether cloud-contaminated Land Surface Temperature values are screened off.
- Name: identifier_product_doi STRING Description: Digital object identifier that uniquely identifies this data product
- Name: identifier_product_doi_authority STRING Description: URL of the digital object identifier resolving authority
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
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| Terra |
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No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | MODIS Sinusoidal Tiling System | CARTESIAN | GEODETIC |
Resolution and Coordinate System
Tiling Identification Systems
| System Name | Coordinate 1 Min | Coordinate 1 Max | Coordinate 2 Min | Coordinate 2 Max |
|---|---|---|---|---|
| MODIS Tile SIN | 0.0 | 35.0 | 0.0 | 17.0 |
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
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LP DAAC
ARCHIVERLand Processes Distributed Active Archive Center
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U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
Sioux Falls, South Dakota 57198
M-F, 8 a.m. to 4 p.m. Central Time
605-594-6116
866-573-3222
Contact DetailsLP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/
- Home Page
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NASA/GSFC/SED/ESD/TISL/MODAPS
PROCESSORMODIS Adaptive Processing System, Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
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NASA/GSFC Code 922
GREENBELT, Maryland 20771
301-614-5515
Contact DetailsContact for data content concerns
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Data Contacts
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LP DAAC User Services
User ServicesLP DAAC User Services
LP DAAC-
U.S. Geological Survey, Earth Resources Observation and Science (EROS) Center
Sioux Falls, South Dakota 57198
M-F, 8 a.m. to 4 p.m. Central Time
605-594-6116
866-573-3222
Contact DetailsLP DAAC User Services is the point of contact for answering questions concerning data products, data access, and online applications.
The LP DAAC website provides detailed information on discovery, distribution, access, and support of land data products.
https://lpdaac.usgs.gov/
- Home Page
-
Archive And Distribution Information
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Format: HDF-EOS
Format Type: Native
Average File Size: 0.21 MB
Total Collection File Size Begin Date: 2000-02-24T00:00:00.000Z
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Format: HDF-EOS
Format Type: Native
Media: https
Average File Size: 0.21 MB
Total Collection File Size Begin Date: 2000-02-24T00:00:00.000Z