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Land Surface Temperature Product Validation Best Practice Protocol Version 1.0 - October, 2017The Global Climate Observing System (GCOS) has specified the need to systematically generate andvalidate Land Surface Temperature (LST) products. This document provides recommendations on goodpractices for the validation of LST products. Internationally accepted definitions of LST, emissivity andassociated quantities are provided to ensure the compatibility across products and reference data sets. Asurvey of current validation capabilities indicates that progress is being made in terms of up-scaling and insitu measurement methods, but there is insufficient standardization with respect to performing andreporting statistically robust comparisons.Four LST validation approaches are identified: (1) Ground-based validation, which involvescomparisons with LST obtained from ground-based radiance measurements; (2) Scene-based intercomparisonof current satellite LST products with a heritage LST products; (3) Radiance-based validation,which is based on radiative transfer calculations for known atmospheric profiles and land surface emissivity;(4) Time series comparisons, which are particularly useful for detecting problems that can occur during aninstrument's life, e.g. calibration drift or unrealistic outliers due to undetected clouds. Finally, the need foran open access facility for performing LST product validation as well as accessing reference LST datasets isidentified.
Document ID
20180006562
Acquisition Source
Goddard Space Flight Center
Document Type
Other
Authors
Guillevic, Pierre
(Maryland Univ. College Park, MD, United States)
Göttsche, Frank
(Karlsruhe Institute of Technology Karlsruhe, Germany)
Nickeson, Jaime
(Science Systems and Applications, Inc. Lanham, MD, United States)
Hulley, Glynn
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ghent, Darren
Yu, Yunyue
Trigo, Isabel
Hook, Simon
Sobrino, José A.
Remedios, John
Román, Miguel
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Camacho, Fernando
(Parc Científic de la Universitat de València València, Spain)
Date Acquired
October 18, 2018
Publication Date
October 1, 2017
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN49948
Funding Number(s)
CONTRACT_GRANT: NNG15HQ01C
CONTRACT_GRANT: NNX17AJ63A
CONTRACT_GRANT: NNN12AA01C
Distribution Limits
Public
Copyright
Use by or on behalf of the US Gov. Permitted.
Keywords
best practice
validation
Land surface temperature
CEOS
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