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CEOS Cal Val Test Site - La Crau, France - Instrumented Site

Entry ID: CEOS_CalVal_Test_Site-La_Crau-France

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Summary

Abstract: On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols ... and guidelines for these purposes:

Background:

Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities.
Requirement:

Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner.

Instrumented Sites:
La Crau, France is one of eight instrumented sites that are CEOS Reference Test Sites. The CEOS instrumented sites are provisionally being called LANDNET. These instrumented sites are primarily used for field campaigns to obtain radiometric gain, and these sites can serve as a focus for international efforts, facilitating traceability and inter-comparison to evaluate biases of in-flight and future instruments in a harmonized manner. In the longer-term it is anticipated that these sites will all be fully automated and provide surface and atmospheric measurements to the WWW in an autonomous manner reducing some of the cost of a manned campaign, at present three can operate in this manner.

Purpose: To facilitate and coordinate calibration and validation data over the La Crau, France test site.

Related URL

Link: VIEW PROJECT HOME PAGE

Description: Committee on Earth Observation Satellites (CEOS) Working Group on Calibration and Validation (WGCV) Test Sites.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 45.63

S: 41.86

E: 6.49

W: 1.92

Temporal Coverage

Start Date: 1972-08-16

Location Keywords

CONTINENT > EUROPE > WESTERN EUROPE > FRANCE

Science Keywords

LAND SURFACE > LAND TEMPERATURE

LAND SURFACE > LAND USE/LAND COVER

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

IMAGERY/BASE MAPS/EARTH COVER

Platform

ENVISAT > Environmental Satellite

ERS-1 > European Remote Sensing Satellite-1

Instrument

AATSR > Advanced Along-Track Scanning Radiometer

ATSR > Along Track Scanning Radiometer and Microwave Sounder

Project

PAGES > Past Global Changes, IGBP

Ancillary Keywords

lamina

Sediments

Data Set Progress

COMPLETE

Originating Center

NOAA/NCDC

Data Center

World Data Center for Paleoclimatology, Boulder

Data Center URL: http://www.ncdc.noaa.gov/paleo/

Data Center Personnel
Name: WDC/PALEOCLIMATOLOGY, BOULDER Phone: +1 (303) 497-6160 Fax: +1 (303) 497-6513 Email: paleo at noaa.gov Contact Address: World Data Center for Paleoclimatology NOAA/NCDC Code E/GCx3 325 Broadway City: Boulder Province or State: CO Postal Code: 80303 Country: USA

Distribution

Distribution Media: ftp

Distribution Format: text, excel, csv

Fees: none

Personnel

JENNIFER PIKE

Role: INVESTIGATOR

Phone: 44 1703 596477

Fax: +44 1703 593059

Email: jp1 at soc.soton.ac.uk

Contact Address:

Department of Oceanography

University of Southampton

Southampton Oceanography Centre

European Way

City: Southampton

Postal Code: SO14 3ZH

Country: United Kingdom

Publications/References

Pike, J., 1996, High resolution palaeoceanography and palaeoclimatology from late Pleistocene and Holocene laminated sediments, Gulf of California,
Unpublished Ph.D. thesis, University of Southampton, Southampton, UK.

Pike, J. and Kemp, A. E. S. 1997. Early Holocene decadal-scale ocean
variability recorded in Gulf of California laminated sediments.
Paleoceanography 12, 227-238.

Creation and Review Dates

DIF Creation Date: 2006-12-19

Last DIF Revision Date: 2007-03-21

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