MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 0.05Deg CMG V041




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MODIS/Terra Land Surface Temperature/Emissivity Daily L3 Global 0.05Deg CMG V041

Entry ID: MOD11C141

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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 0.05Deg CMG (Short name: MOD11C1) is configured on a 0.05º latitude/longitude climate modeling grid (CMG).

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 L3 Global CMG (Short name: MOD11C1) products incorporate 0.05º (5600 meters at the equator) pixels, which are derived from the MOD11B1 daily global 5 km grid product, and stored in a 0.05º geographic CMG. They are produced daily using the day/night LST algorithm, which extracts average temperatures (in Kelvin) and applies them to a pair of MODIS daytime and nighttime observations. This method yields 1 K accuracy for materials with known emissivities. The six thermal Band emissivities are estimated through a classification-based look-up table (LUT). Prior to reprojecting the MOD11C1, cloud-contaminated LSTs (daytime and nighttime) are removed by a double-screening method. Further details are available in Wan et al. (2002).

The V41 MOD11C1 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 emissivities for Bands 20, 22, 23, 29, 31, and 32.

The V41 Terra/MODIS LST/E products, including MOD11C1, are validated to Stage-2 with well-defined uncertainties over a range of representative conditions. Further details regarding MODIS land product validation for the LST/E products are available from the MODIS land team validation site.

The V41 MOD11C1 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 Global
Image Dimensions 3600 x 7200 (Rows/Columns)
Map Projection Latitude/Longitude Grid
File Size (Average) 47.5 MB
Data Format HDF-EOS
Number of Science Data Sets (SDS) 15

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.

Link: GET DATA > ECHO

Description: Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.

Link: VIEW PROJECT HOME PAGE

Description: The Land Processes Distributed Active Archive Center (LP DAAC) home page contains information about the LP DAAC, its products, and its services. The Web site also provides access to NASA's next generation Earth Science discovery tool (Reverb), which is a Web-based search, browse and order interface for a variety of EOS data sets.

Link: VIEW PROJECT HOME PAGE

Description: The MODIS Land home page is maintained through NASA's Goddard Space Flight Center and documents various aspects of the land portion of the MODIS program.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 62.0

S: 20.0

E: -90.0

W: 130.0

Data Set Citation

Dataset Originator/Creator: R. D'Arrigo, E. Mashig, D. Frank, R. Wilson, and G. Jacoby

Dataset Title: Temperature Variability over the Past Millennium Inferred from Northwestern Alaska Tree Rings

Dataset Publisher: IAI

Issue Identification: IAI-ScientificArticles-CRN_003_Darrigo_SEWRW

Parent DIF

This data set description is a member of a collection. The collection is described in
IAIDIS266

Temporal Coverage

Start Date: 0978-01-01

Stop Date: 2001-12-31

Paleo Temporal Coverage

Paleo Start Date: 1000 ybp
Paleo Stop Date: 0 ybp
Chrono Unit:

PHANEROZOIC > CENOZOIC > QUATERNARY > HOLOCENE

Location Keywords

OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN

GEOGRAPHIC REGION > ARCTIC

GEOGRAPHIC REGION > POLAR

CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA > ALASKA

Science Keywords

ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE

PALEOCLIMATE > LAND RECORDS > TREE RINGS

PALEOCLIMATE > PALEOCLIMATE RECONSTRUCTIONS > AIR TEMPERATURE RECONSTRUCTION

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

GEOSCIENTIFIC INFORMATION

Project

ESIP > Earth Science Information Partners Program

IAI-DIS > Inter-American Institute for Global Change Research

CRN > Collaborative Research Network Program (IAI)

Ancillary Keywords

IAI-Science-Publications

reconstructed temperature

Data Set Progress

COMPLETE

Originating Center

Data Center

Inter-American Institute for Global Change Research, Data and Information System

Data Center URL: http://disbr1.iai.int/

Data Center Personnel
Name: LUIS MARCELO ACHITE Phone: (55-12) 3945-6868 Fax: (55-12) 3941-4410 Email: lmachite at dir.iai.int Contact Address: Inter-American Institute for Global Change Research- IAI Avenida dos Astronautas, 1758, Jardim da Granja City: Sao Jose dos Campos Province or State: Sao Paulo Postal Code: 12227-010 Country: BRAZIL