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2014 HyspIRI Product Symposium, 4-6, Jun 2014, NASA/GSFC, Greenbelt, Maryland, USA.

1st International Satellite Snow Products Intercomparison workshop (ISSPI), 21-23, July 2014, College Park, Maryland, USA.

2nd ESA DUE GlobTemperature User Consultation Meeting, 25-26th June 2014, Karlsruhe, Germany. Abstract submission deadline, 14 Apr 2014.

2014 Recent Advances in Quantitative Remote Sensing, 22 - 26 Sep 2014, Valencia, Spain. Abstract submission deadline, 28 Feb 2014.

37th CEOS WGCV-36, Frascati, Italy, Feb 17-21, 2014.

GV2M: Global Vegetation Monitoring and Modelling, 3rd - 7th Feb 2014, Palais des Papes, Avignon, France.

7th EARSeL Workshop on Land Ice and Snow, Feb 03 - 06, 2014, Bern, Switzerland.

Land Product Validation & Evolution workshop, Jan 28-30, 2014, Frascati, Italy.

1st LPV Workshop on Fpar, Jan 23-24, 2014 at the European Commission, Ispra, Italy.

9th EARSeL Forest Fire Workshop, Oct 15 - 17, 2013, Coombe Abbey, Warwickshire, UK.

36th CEOS WGCV-36, Shanghai, China, May 13-17, 2013.

Envisat-MERIS 10-Daily composite (EM10) data available, free download via the VITO website, 2010 through March 2012, back dates being processed.

AGU Special Session: Quality Assessment of Satellite-Derived Land Surface Variables, San Francisco, CA, Dec 3-7, 2012.

SMAP Cal/Val Workshop #3 , Oxnard, CA, Nov 14-16, 2012.

WGCV-35/WGISS-34 Joint Meeting, Balanagar, Hyderabad, India, Sep 24-28, 2012.

The 2nd International Workshop on the Validation of Satellite-based Land Surface Phenology Products, Milwaukee, Wisconsin, USA, Sep 14, 2012.

Phenology 2012 Conference, Milwaukee, Wisconsin, USA, Sep 10-13, 2012.

2nd TERRABITES Symposium, ESA-ESRIN, Frascati, Italy, Feb 6-8, 2012.

CEOS WGCV 34th Plenary meeting, Brisbane, Australia, Feb 6-10, 2012.

Special Interest Group - Thermal Remote Sensing , Frascati, Italy, Dec 7-9, 2011.

QA4EO Workshop on Providing Harmonised Quality Information in EO Data by 2015, 18-20 October 2011.

SMAP Applications Workshop #2, Washington, DC, October 12-13, 2011.

iLEAPS 3rd Science Conference, 18-23 September 2011, Garmisch-Partenkirchen, Germany.


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LPV subgroup focus area mailing lists.
Choose a group:
How to use these mailing lists

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WGCV is a standing Working Group of the Committee on Earth Observation Satellites
 
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The mission of the CEOS Land Product Validation (LPV) subgroup is to coordinate the quantitative validation of satellite-derived products. The focus lies on a standardized intercomparison and validation across products from different satellites, algorithms, and agencies.

The sub-group contains 9 Focus Areas, with 2 co-leads responsible for a specific land surface variable (essential climate and biodiversity variables).

Validation Stage - Definition and Current State
Variable
1
Product accuracy is assessed from a small (typically < 30) set of locations and time periods by comparison with in-situ or other suitable reference data. Fapar, Snow Cover, Phenology, Land Surface Temperature, Emissivity, Fire Radiative Power
2

Product accuracy is estimated over a significant set of locations and time periods by comparison with reference in situ or other suitable reference data. Spatial and temporal consistency of the product and consistency with similar products has been evaluated over globally representative locations and time periods. Results are published in the peer-reviewed literature.

Leaf Area Index, Burned Area
3
Uncertainties in the product and its associated structure are well quantified from comparison with reference in situ or other suitable reference data. Uncertainties are characterized in a statistically rigorous way over multiple locations and time periods representing global conditions. Spatial and temporal consistency of the product and with similar products has been evaluated over globally representative locations and periods. Results are published in the peer-reviewed literature.
Land cover, Albedo, Soil Moisture
4
Validation results for stage 3 are systematically updated when new product versions are released and as the time-series expands.
 

To reach validation stage 4, LPV has developed a framework for product intercomparison and validation. It is based on a citable protocol, fiducial reference data, and automated subsetting. Ideally, these parts will be integrated into an online platform where quantitative tests are run, with resulting standardized intercomparison and validation reports for all products used in the validation exercise. The aim is to implement this framework for each variable. Variable-specific information on the status of the implementation is available through the focus area pages.

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Steps to reach stage 4. For each ECV, a corresponding set of documents and fiducial reference data will be generated. Illustrated a few examples for different ECVs. (click for full size image)

LPV is currently in the process of selecting supersites with fully characterized land surfaces and vegetation canopies for the parameterization of 3D radiative transfer models. These sites will serve as testbeds for in situ sampling strategies and product algorithm intercomparison.

Outreach activities of LPV include distribution of validation news through the emailing list (consult corresponding subscription menu on the left of this website) and regularly organizes validation sessions at conferences, such as AGU and EGU (consult corresponding announcement section on this page).

LPV is following international terminology standards for the evaluation of measurement data

LPV focus areas and contacts


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Curator: Jaime Nickeson
NASA Official: Miguel Román
Last Updated: October 28, 2014
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