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

Dataset Availability: 2021-01-01T00:00:00Z–2024-12-02T00:00:00Z
Dataset Provider: NASA LP DAAC at the USGS EROS Center
Earth Engine Snippet: ee.ImageCollection("MODIS/061/MOD17A2H")

Cadence: 8 Days
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:

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

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

DOIs

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

Explore with Earth Engine

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

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

2021-01-01T00:00:00Z/2024-12-02T00:00:00Z

Google Earth Engine

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

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