ΤΗΛΕΠΙΣΚΟΠΗΣΗ - ΘΕΩΡΙΑ (ΤΠ-6003)

Global Ecosystems Dynamics Investigation (GEDI ) is a NASA-run Earth Ventures Instrument (EVI) mission. GEDI uses laser-based technology to produce elevation profiles of the Earth’s forests and link this to habitat quality. 

Focused on tropical and temperate forests from its vantage point on the ISS, GEDI uses lidar to provide the first global, high-resolution observations of forest vertical structure. GEDI addresses three, core science questions:

1) What is the above-ground carbon balance of the land surface?

2) What role will the land surface play in mitigating atmospheric CO₂ in the coming decades?

3) How does ecosystem structure affect habitat quality and biodiversity?

Answering these questions is critical for understanding the future path of global climate change and the Earth's biodiversity.

GEDI has four science objectives that address its core questions:

• Quantify the distribution of above-ground carbon at fine spatial resolution

• Quantify the changes in carbon resulting from disturbance and subsequent recovery

• Quantify the spatial and temporal distribution of forest structure and its relationship to habitat quality and biodiversity

• Quantify the sequestration potential of forests through time under changing land use and climate.

GEDI L3 Gridded Land Surface Metrics, Version 2

Dataset provides Global Ecosystem Dynamics Investigation (GEDI) Level 3 (L3) gridded mean canopy height, standard deviation of canopy height, mean ground elevation, standard deviation of ground elevation, and counts of laser footprints per 1-km x 1-km grid cells globally within -52 and 52 degrees latitude.

Global Biomass Map

The output will consist of a global dataset of spatially explicit estimates of forest AGB, together with estimates of its accuracy

This website provides maps of forest growing stock volume and above-ground biomass derived from Earth Observation data in the framework of ESA's GlobBiomass project.

Data download

The AGB and GSV datasets are provided in the form of 40° x 40° tiles. In the overview map below, links are provided that allow for downloading AGB and GSV maps for individual tiles.