MYD17A2H.006: Aqua Gross Primary Productivity 8-Day Global 500m [deprecated]

AI-generated Key Takeaways

• This MODIS/006/MYD17A2H dataset has been deprecated and replaced by MODIS/061/MYD17A2H.

• It provides Aqua Gross Primary Productivity (GPP) data with an 8-day, 500m resolution, covering the period from 2002-07-04 to 2023-02-18.

• GPP is calculated using the radiation-use efficiency concept and can be used to model terrestrial energy, carbon, water cycles, and vegetation biogeochemistry.

• The dataset includes GPP, Net Photosynthesis (PsnNet), and quality control (Psn_QC) bands.

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

Caution: This dataset has been superseded by MODIS/061/MYD17A2H.

Dataset Availability

2002-07-04T00:00:00Z–2023-02-18T00:00:00Z

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Earth Engine Snippet

ee.ImageCollection("MODIS/006/MYD17A2H")

Cadence

8 Days

Tags

8-day

aqua

global

gpp

modis

myd17a2

nasa

photosynthesis

plant-productivity

productivity

psn

usgs

Description

The MYD17A2H V6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m resolution. 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

Pixel Size
500 meters

Bands

Name	Units	Min	Max	Scale	Pixel Size	Description
Gpp	kg*C/m^2	0	3000	0.0001	meters	Gross primary production
PsnNet	kg*C/m^2	-3000	3000	0.0001	meters	Net photosynthesis; GPP minus the maintenance respiration (MR)
Psn_QC					meters	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/MYD17A2H.006

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('MODIS/006/MYD17A2H')
                  .filter(ee.Filter.date('2018-01-01', '2018-05-01'));
var gpp = dataset.select('Gpp');
var gppVis = {
  min: 0.0,
  max: 600.0,
  palette: ['bbe029', '0a9501', '074b03'],
};
Map.setCenter(6.746, 46.529, 2);
Map.addLayer(gpp, gppVis, 'GPP');

Open in Code Editor

MYD17A2H.006: Aqua Gross Primary Productivity 8-Day Global 500m [deprecated]

The MYD17A2H V6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m resolution. 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 …

MODIS/006/MYD17A2H, 8-day,aqua,global,gpp,modis,nasa,photosynthesis,plant-productivity,productivity,psn,usgs

2002-07-04T00:00:00Z/2023-02-18T00:00:00Z

-90 -180 90 180

Google Earth Engine

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

• https://doi.org/10.5067/MODIS/MYD17A2H.006
• https://doi.org/10.5067/MODIS/MYD17A2H.006