Google Earth Engine（GEE）——GEDI L2A Vector Canopy Top Height (Ver

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The Global Ecosystem Dynamics Investigation (GEDI) mission aims to characterize ecosystem structure and dynamics to enable radically improved quantification and understanding of the Earth's carbon cycle and biodiversity. The GEDI instrument, attached to the International Space Station (ISS), collects data globally between 51.6° N and 51.6° S latitudes at the highest resolution and densest sampling of the 3-dimensional structure of the Earth.

GEDI's Level 2A Geolocated Elevation and Height Metrics Product (GEDI02_A) is primarily composed of 100 Relative Height (RH) metrics, which collectively describe the waveform collected by GEDI.

The original GEDI02_A product is a table of point with a spatial resolution (average footprint) of 25 meters. The GEDI L2A Monthly raster data can be found in the image collection LARSE/GEDI/GEDI02_A_002_MONTHLY.

The GEDI L4B biomass data can be found in the image LARSE/GEDI/GEDI04_B_002.

Global ecosystem dynamics survey (GEDI) The task is to characterize the structure and dynamics of the ecosystem , To fundamentally improve the quantification and understanding of the earth's carbon cycle and biodiversity . Attached to the International Space Station (ISS) Of GEDI The instrument is based on the earth 3 The highest resolution and densest sampling of the dimensional structure is collected from the global North latitudes 51.6° To south latitude 51.6° Data between .

GEDI Of 2A Level geolocation elevation and height measurement products (GEDI02_A) Mainly by 100 A relative height (RH) Measurement composition , Together they describe GEDI Collected waveforms .

The original GEDI02_A The product is a spatial resolution （ Average footprint ） by 25 Meter point table .GEDI L2A The monthly grid data can be found in the image set  LARSE/GEDI/GEDI02_A_002_MONTHLY Find .

GEDI L4B Biomass data can be found in images  LARSE/GEDI/GEDI04_B_002 Find .

see also User guide   Learn more .

Dataset Availability

2019-03-25T00:00:00Z - 2023-01-01T00:00:00

Dataset Provider

USFS Laboratory for Applications of Remote Sensing in Ecology (LARSE) NASA GEDI mission, accessed through the USGS LP DAAC

Code ：

var dataset = ee.FeatureCollection('LARSE/GEDI/GEDI02_A_002/GEDI02_A_2021244154857_O15413_04_T05622_02_003_02_V002');dataset = dataset.style({color: 'black',  pointSize: 1});Map.setCenter(-64.88, -31.77, 15);Map.addLayer(dataset);

Terms of use

This data set belongs to the public domain , Can be used and distributed without restrictions . For more information , see also NASA Geoscience data and information policy  .

• LP DAAC - GEDI02_A

Citations:

• GEDI L2A Elevation and Height Metrics Data Global Footprint Level - GEDI02_A Dubayah, R., M. Hofton, J. Blair, J. Armston, H. Tang, S. Luthcke. GEDI L2A Elevation and Height Metrics Data Global Footprint Level V002. 2021, distributed by NASA EOSDIS Land Processes DAAC. Accessed YYYY-MM-DD.

 

 

 

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