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Description

The NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Combined Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Moderate Resolution Imaging Spectroradiometer (MODIS) Emissivity for Land (CAMEL) dataset provides monthly emissivity at 0.05 degree (~5 kilometer) resolution (CAM5K30EM). The CAM5K30EM data product was created by combining the University of Wisconsin-Madison MODIS Baseline Fit (UWBF) emissivity database and the Jet Propulsion Laboratory ASTER Global Emissivity Dataset Version 4 (GED V4). The two datasets have been integrated to capitalize on the unique strengths of each product's characteristics.

The integration steps include adjustment of ASTER GED Version 3 emissivities for vegetation and snow cover variations to produce ASTER GED Version 4, aggregation of ASTER GED Version 4 emissivities from 100 meter resolution to the UWBF 5 kilometer resolution, merging of the five ASTER spectral emissivities with the UWBF emissivity to create CAMEL at 13 hinge points, and extension of the 13 hinge points to high spectral resolution (HSR) utilizing the Principal Component (PC) regression method. Additional details regarding the methodology are available in the User Guide and Algorithm Theoretical Basis Document (ATBD).

Provided in the CAM5K30EM product are layers for the CAMEL emissivity, ASTER Normalized Difference Vegetation Index (NDVI), snow fraction derived from MODIS (MOD10), latitude, longitude, CAMEL quality, ASTER quality, and the UWBF emissivity quality information.

Known Issues

  • The following granules are missing from the product: January, February, and August of 2000; June and July of 2001; March of 2002; December of 2003; July of 2010; and February of 2016.

Version Description

Version 3 includes new MODIS Terra and Aqua Land Surface Temperature and 3-Band Emissivity (MYD/MOD21) input data in the University of Wisconsin-Madison MODIS Baseline Fit (UWBF) emissivity database and Version 6.1 MODIS Terra and Aqua Land Surface Temperature and Emissivity (MYD/MOD11) data products with the most up-to-date calibration corrections. Additional information on the Version 3 updates is provided in Section 2 of the User Guide and ATBD.

Product Summary

Platforms
Terra ,
Aqua
Instruments
ASTER ,
MODIS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Spatial Resolution
5600 Meters x 5600 Meters
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2000-03-01 to 2024-01-01
Temporal Resolution
1 Month
Data Partner
Land Processes Distributed Active Archive Center (LP DAAC) ,
Cooperative Institute for Meteorological Satellite Studies, Space Science and Engineering Center, University of Wisconsin, Madison (UWI-MAD/SSEC/CIMSS)
Concept ID
C3543139481-LPCLOUD
Data State
COMPLETE
Number of Files/Granules
279
Processing Level
3
Published
Science Keywords
Emissivity ,
Vegetation Index ,
Snow Cover ,
Land Surface Temperature

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Borbas, E., Hook, S., Hulley, G., Loveless, M., & Knuteson, R. (2023). Combined ASTER and MODIS Emissivity database over Land (CAMEL) Emissivity Monthly Global 0.05Deg V003 [Data set]. NASA Land Processes Distributed Active Archive Center. https://doi.org/10.5067/MEASURES/LSTE/CAM5K30EM.003 Date Accessed: 2026-04-30

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
A Deep Learning Approach to Downscaling Microwave Land Surface Waring, Abigail Marie, Ghent, Darren, Moffat, David, Jimenez, Carlos, Remedios, John Emissivity, Vegetation Index, Snow Cover, Emissivity, Vegetation Index, Snow Cover, Land Surface Temperature
Analytic Parameterization of Longwave Optical Properties of Bulk Gim, HyeonJu, Park, Seon Ki Emissivity, Land Surface Temperature, Vegetation Index, Snow Cover, Emissivity, Vegetation Index, Snow Cover
Campaign situational awareness from operational satellite sounding retrievals Esmaili, Rebekah, Barnet, Christopher D. Emissivity, Vegetation Index, Snow Cover, Emissivity, Vegetation Index, Snow Cover, Land Surface Temperature
Regional climate trend analyses for Aqua MODIS land surface temperatures Waring, Abigail Marie, Ghent, Darren, Perry, Mike, Anand, Jasdeep Singh, Veal, Karen L, Remedios, John Emissivity, Vegetation Index, Snow Cover, Emissivity, Vegetation Index, Snow Cover, Land Surface Temperature
Climatology of the Combined ASTER MODIS Emissivity over Land (CAMEL) Version 2 Loveless, Michelle, Borbas, E. Eva, Knuteson, Robert, Cawse-Nicholson, Kerry, Hulley, Glynn, Hook, Simon Emissivity, Vegetation Index, Snow Cover, Land Surface Temperature, Emissivity, Vegetation Index, Snow Cover, Land Use/Land Cover Classification
Multisensor thermal infrared and microwave land surface temperature algorithm intercomparison Perry, Mike, Ghent, Darren J., Jimenez, Carlos, Dodd, Emma M. A., Ermida, Sofia L., Trigo, Isabel F., Veal, Karen L. Emissivity, Vegetation Index, Snow Cover, Emissivity, Vegetation Index, Snow Cover, Land Surface Temperature
Towards a unified and coherent land surface temperature earth system data record from geostationary satellites Pinker, Rachel T., Ma, Yingtao, Chen, Wen, Hulley, Glynn, Borbas, Eva, Islam, Tanvir, Hain, Chris, Cawse-Nicholson, Kerry, Hook, Simon, Basara, Jeff Land Surface Temperature, Emissivity, Vegetation Index, Snow Cover, Emissivity, Vegetation Index, Snow Cover, Terrain Elevation, Topographical Relief Maps, Digital Elevation/Terrain Model (DEM), Normalized Difference Vegetation Index (NDVI)
Dependence of simulation biases at AHI surface-sensitive channels on land surface emissivity over China Zhuge, X., Zou, X., Weng, F., Sun, M. Emissivity, Vegetation Index, Snow Cover, Emissivity, Vegetation Index, Snow Cover, Land Surface Temperature
The Combined ASTER MODIS Emissivity over Land (CAMEL) Part 1: Methodology and High Spectral Resolution Application Borbas, E. Eva, Hulley, Glynn, Feltz, Michelle, Knuteson, Robert, Hook, Simon Emissivity, Vegetation Index, Snow Cover, Emissivity, Vegetation Index, Snow Cover, Land Surface Temperature, Terrain Elevation, Topographical Relief Maps, Digital Elevation/Terrain Model (DEM), Normalized Difference Vegetation Index (NDVI)
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