Terrestrial Ecosystems Monitoring Sites (TEMS) Who, what, where International on-line directory of monitoring sites and networks carrying out long-term terrestrial ecosystem monitoring

Contents  Who: – 2040 sites – 1160 contacts – 40 networks  What: 120 measured variables  Where: 130 countries Information

Functions  Terrestrial ecosystems  Active data gathering  Extent of coverage  International interest  Long-term Admission criteria

Site detailed information

 Majority of networks and sites concerned by land cover and more specifically: – FluxNet: Integrating Worldwide CO2 Flux Measurements – FAO-FRA: Forest Resources Assessment, a pan- tropical Remote sensing survey – ILTER: International Long-Term Ecological Research – GLCTS: Global Land Cover Test Sites Land cover monitoring network

Existing and proposed in situ validation projects  Ongoing validation by BIGFOOT of MODIS GPP/NPP datasets  CEOS initiative for global land cover validation methodologies  GOFC-GOLD meeting for GLOBCOVER in situ validation  Ongoing international assessments such as FAO FRA, a pan-tropical Remote sensing survey

Land cover monitoring map

Remote sensing validation with in situ data  TEMS can provide contact points for each site and network involved in land cover in situ observations, such as FLUXNET or ILTER already involved in the GTOS Net Ecosystem Productivity demonstration project (GTOS-NEP)

Validation effort of MODIS products at tower flux sites Ex situ In situ  Provide as-best-as-possible estimates of large- scale GPP, NPP, NEP by synthesizing data from – tower flux networks – remote sensing – meteo networks – BGC models  Indicate where lack of information caused greatest uncertainty

Validation effort of MODIS products at tower flux sites  Provide as-best-as-possible estimates of large- scale GPP, NPP, NEP by synthesizing data from – tower flux networks – remote sensing – meteo networks – BGC models  Indicate where lack of information caused greatest uncertainty

Access to GCMD metadata (1)

Access to GCMD metadata (2)

Access to GCMD metadata (3)

Terrestrial Ecosystems Monitoring Sites (TEMS) Where’s TEMS?

GTOS-NEP project