Global Change Master Directory (GCMD)

Data Sets

Services / Tools

Ancillary Descriptions

Are you using a browser that doesn't support JavaScript or have you disabled JavaScript?

If you have disabled JavaScript, you must re-enable JavaScript to use this page.
Or you can view this record using the Text Only Format.

MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V041

Entry ID: MOD11A141

[ Get Data ]
[ Update this Record ]

Summary

Abstract: The MODIS/Terra Land Surface Temperature and Emissivity (LST/E) products provide per-pixel temperature and emissivity values in a sequence of swath-based to grid-based global products. The MODIS/Terra LST/E Daily L3 Global 1 km Grid product (Short name: MOD11A1), is tile-based and gridded in the Sinusoidal projection, and produced daily at 1 km spatial resolution.

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.

The V41 MOD11A1 product’s acquisition range started January 1, 2007 (2007-001) and will continue until the V6 reprocessing completes in 2011. 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.

Data Set Characteristics
Area ~1100 km x 1100 km (Latitude/Longitude)
Image Dimensions 1200 x 1200 (Rows/Columns)
Map Projection Sinusoidal
File Size (Average) 2.2 MB
Data Format HDF-EOS
Number of Science Data Sets (SDS) 12

Related URL

Link: GET DATA > ON-LINE ARCHIVE

Description: The Data Pool (On-line Archive) provides access to all MODIS products, and a rolling archive of the ASTER level-1B products that cover the U.S. and its Territories.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 81.0

S: -81.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: Land Processes Distributed Active Archive Center

Dataset Title: MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V041

Dataset Release Date: 2009

Dataset Release Place: Sioux Falls, South Dakota, USA

Dataset Publisher: U.S. Geological Survey

Data Presentation Form: Remote Sensing Image

Temporal Coverage

Start Date: 2007-01-01

Location Keywords

GEOGRAPHIC REGION > GLOBAL

Data Resolution

Latitude Resolution: 1000 m
Longitude Resolution: 1000 m
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree

Science Keywords

LAND SURFACE > LAND TEMPERATURE > LAND SURFACE TEMPERATURE

LAND SURFACE > SURFACE RADIATIVE PROPERTIES > EMISSIVITY

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

GEOSCIENTIFIC INFORMATION

Platform

TERRA > Earth Observing System, TERRA (AM-1)

Instrument

MODIS > Moderate-Resolution Imaging Spectroradiometer

Project

EOSDIS > Earth Observing System Data Information System

ESIP > Earth Science Information Partners Program

CWIC > CEOS WGISS Integrated Catalog

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

Ancillary Keywords

IMAGERY

DAAC

Data Set Progress

IN WORK

Originating Center

USGS/EROS

Data Center

Land Processes Distributed Active Archive Center

Data Center URL: https://lpdaac.usgs.gov/

Data Center Personnel
Name: LP DAAC USER SERVICES Phone: (Toll Free) (866) 573-3222 Phone: (605) 594-6116 Fax: (605) 594-6963 Email: LPDAAC at usgs.gov Contact Address: 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 Country: USA