MERIS - Gap Free Leaf Area Index (LAI) - Global

This product consists of global gap free Leaf area index (LAI) time series, based on MERIS full resolution Level 1B data. It is produced as a series of 10-day composites in geographic projection at 300m spatial resolution. The processing chain comprises geometric correction, radiometric correction and pixel identification, LAI calculation with the BEAM MERIS vegetation processor, re-projection to a global grid, and temporal aggregation selecting the measurement closest to the mean value. After the LAI pre-processing we applied time series analysis to fill data gaps and filter outliers using the technique of harmonic analysis in combination with mean annual and multiannual phenological data. Data gaps are caused by clouds, sensor limitations due to the solar zenith angle (less than 10 degrees), topography and intermittent data reception. We applied our technique for the whole period of observation (Jul 2002 - Mar 2012). Validation, was performed using VALERI and BigFoot data.

Citation proposal
German Aerospace Center (DLR). MERIS - Gap Free Leaf Area Index (LAI) - Global. https://gdk.gdi-de.org/geonetwork/srv/api/records/fb4b4be0-a4a3-4dcd-b381-bacde381d3eb

Simple

Date ( Creation ): 2015-01-05T00:00:00

Edition

Identifier: https://geoservice.dlr.de/catalogue/srv/metadata/fb4b4be0-a4a3-4dcd-b381-bacde381d3eb

Presentation form: Digital map

Other citation details: DOI: 10.15489/ak90g1wty909

Status: Completed

Point of contact

German Aerospace Center (DLR)

Author

German Aerospace Center (DLR) - ( )

Maintenance and update frequency: Not planned

GEMET - INSPIRE themes, version 1.0 ( Theme )

Land cover

Spatial scope ( Theme )

Global

Keywords

ENVISAT
MERIS
LAI
Time series analysis
urn:eop:DLR:EOWEB:MERIS-FR-LAI-HA
FEDEO

Use limitation: Nutzungseinschränkungen: Das DLR ist nicht haftbar für Schäden, die sich aus der Nutzung ergeben. / Use Limitations: DLR not liable for damage resulting from use.