MOD17A2H.061: Terra Gross Primary Productivity 8-Day Global 500m

Dataset Availability

2021-01-01T00:00:00Z–2024-11-24T00:00:00Z

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Earth Engine Snippet

ee.ImageCollection("MODIS/061/MOD17A2H")

Tags

8-day global gpp modis nasa photosynthesis productivity psn terra usgs

mod17a2

Description

The MOD17A2H V6.1 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m pixel size. The product is based on the radiation-use efficiency concept and can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation.

Documentation:

• User's Guide

• Algorithm Theoretical Basis Document (ATBD)

• General Documentation

Bands

Resolution
500 meters

Bands

Name	Units	Min	Max	Scale	Description
Gpp	kg*C/m^2	0	3000	0.0001	Gross primary production
PsnNet	kg*C/m^2	-3000	3000	0.0001	Net photosynthesis; GPP minus the maintenance respiration (MR)
Psn_QC					Quality control bits
Bitmask for Psn_QC Bit 0: MODLAND QC bits 0: Good quality 1: Other quality Bit 1: Sensor 0: Terra 1: Aqua Bit 2: Dead detector 0: Detectors apparently fine for up to 50% of channels 1, 2 1: Dead detectors caused >50% adjacent detector retrieval Bits 3-4: Cloud state 0: Significant clouds NOT present (clear) 1: Significant clouds WERE present 2: Mixed cloud present on pixel 3: Cloud state not defined, assumed clear Bits 5-7: 5-level confidence quality score 0: Very best possible 1: Good, very usable, but not the best 2: Substandard due to geometry problems - use with caution 3: Substandard due to other than geometry problems - use with caution 4: Couldn't retrieve pixel (NOT PRODUCED AT ALL - non-terrestrial biome) 7: Fill Value

Terms of Use

Terms of Use

MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.

Citations

Citations:

• Please visit LP DAAC 'Citing Our Data' page for information on citing LP DAAC datasets.

DOIs

• https://doi.org/10.5067/MODIS/MOD17A2H.061

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('MODIS/061/MOD17A2H')
                  .filter(ee.Filter.date('2021-01-01', '2021-05-01'));

var gpp = dataset.select('Gpp');
var gppVis = {
  min: 0,
  max: 600,
  palette: ['bbe029', '0a9501', '074b03'],
};
Map.setCenter(6.746, 46.529, 2);
Map.addLayer(gpp, gppVis, 'GPP');

Open in Code Editor

MOD17A2H.061: Terra Gross Primary Productivity 8-Day Global 500m

The MOD17A2H V6.1 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m pixel size. The product is based on the radiation-use efficiency concept and can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. Documentation: …

MODIS/061/MOD17A2H, 8-day,global,gpp,modis,nasa,photosynthesis,productivity,psn,terra,usgs

2021-01-01T00:00:00Z/2024-11-24T00:00:00Z

Google Earth Engine

https://developers.google.com/earth-engine/datasets

• https://doi.org/10.5067/MODIS/MOD17A2H.061