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ESA Annouces first gathering of the Sentinel-2 Validation Team (S2VT), 8-29 November 2016, at ESRIN, Frascati, Italy.

Remote Sensing of Flourescence, Photosynthesis and Vegetation Status 17-19 January 2017 at ESA-ESRIN, Frascati, Italy.

WorldCover 2017 Conference, 14-16 March, 2017 at ESA/ESRIN. Call for papers, abstract deadline Dec 6, 2016.

Polar and Snow Cover Applications User Requirements Workshop, June 23rd, 2016 in Brussels.

NASA LCLUC Spring Science Team Meeting, April 18th - April 19th, 2016 in Bethesda, MD. .

ESA's Living Planet Symposium 2016, Prague, Czech Republic, May 9-13, 2016.

2nd joint Workshop of the EARSeL Special Interest Group on Land Use & Land Cover and the NASA LCLUC Program, Prague, Czech Republic, May 7-9, 2016.

Global Climate Observation: The Road to the Future, Amsterdam, The Netherlands, Mar 2-4 2016.

AGU 2015, Overview and Status of the CEOS LPV Subgroup , San Francisco, CA, Dec 16 2015.

10th EARSeL Forest Fire Special Interest Group Workshop, Limassol, Cyprus, Nov 2-5 2015.

IGARSS 2015. July 26-31, 2015, Milan, Italy.

2015 LIDAR Workshop, 21-22 July, 2015, Lowell, Massachusetts, USA.

2015 HyspIRI Mission and Products Symposium, June 3-4, 2015, NASA Goddard Space Flight Center.

ISRSE36, Berlin, Germany, 11-15 of May, 2015.

WCGV-39, The 39th Plenary of the Working Group on Calibration & Validation, May 6-8, 2015, Berlin, Germany.

EGU Special Session, Earth observation for monitoring and modeling the global energy, water and carbon cycles over land using model-data integration, April 12-17, 2015, Vienna, Austria.

AGU Special Session IN14A, Assessment of Satellite-Derived Essential Climate Variables in the Terrestrial Domain, Monday Dec 15, 2014, San Francisco, CA, USA.

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.
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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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WGCV

CEOS Cal/Val Portal

 
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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 standardized intercomparison and validation across products from different satellite, algorithms, and agency sources.

The sub-group consists of 9 Focus Areas, with 2 co-leads responsible for each 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
Phenology
LST & 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
Snow Cover
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
Active Fire Detection

4
Validation results for stage 3 are systematically updated when new product versions are released and as the time-series expands.
 

Validation Framework

To reach validation stage 4, LPV has developed a framework for product intercomparison and validation. This framework is based on a citable protocol, fiducial reference data, and automated subsetting. Ideally, each of these parts will be integrated into an online platform where quantitative tests are run, and standardized intercomparison and validation results reported for all products used in the validation exercise. The goal is to implement this framework for each product variable. Information on variable-specific 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 here are examples for a few different ECVs. (click for full size image)

LPV is currently in the process of selecting supersites with fully characterized land surface and vegetation cover 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 focus area email lists (see subscription menu in the left panel of this page) and regularly organized validation sessions at conferences, such as AGU and EGU (see announcements panel at top left).

LPV follows international terminology standards for the evaluation of measurement data

LPV focus areas and contacts
USAGov logo, go to USAGov page

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Curator: Jaime Nickeson
NASA Official: Miguel Román
Last Updated: October 11, 2016
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