MOD16A2: MODIS Global Terrestrial Evapotranspiration 8-Day Global 1km

MODIS/NTSG/MOD16A2/105
Dataset Availability
2000-01-01T00:00:00 - 2014-12-31T00:00:00
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("MODIS/NTSG/MOD16A2/105")
Tags
evapotranspiration modis mod16a2 8-day global

Description

The MOD16A2 V105 product provides information about 8-day global terrestrial evapotranspiration at 1km pixel resolution. Evapotranspiration (ET) is the sum of evaporation and plant transpiration from the Earth's surface to the atmosphere. With long-term ET data, the effects of changes in climate, land use, and ecosystems disturbances can be quantified.

The MOD16A2 product is produced by the Numerical Terradynamic Simulation Group NTSG, University of Montana (UMT) in conjunction with NASA Earth Observing System. For more details about the algorithm used see the algorithm theoretical basis document.

*The period of coverage is 8 days with the exception of the last period at the end of the year which is either 5 or 6 days. ET/PET units are 0.1mm/5-day for December 27-31 of 2001, 2002, 2003, 2005, 2006, 2007, 2009, 2010, and 0.1mm/6-day for December 26-31 of 2000, 2004, 2008 (leap years). **For some pixels in African rainforest, the MODIS albedo data from MCD43B2/MCD43B3 have no cloud-free data throughout an entire year. As a result, pixels for that year in all data bands are masked out.

Bands

Resolution
1000 meters

Bands

Name Units Min Max Scale Description
ET kg/m^2 -5* 453* 0.1

Evapotranspiration, aggregated for period of coverage.*

LE J/m^2/day -20* 1671* 0.0001

Latent heat flux, averaged daily over the period of coverage.*

PET kg/m^2 -8* 793* 0.1

Potential evapotranspiration, aggregated for period of coverage.*

PLE J/m^2/day -40* 3174* 0.0001

Potential Latent Heat Flux, averaged daily over the period ofcoverage.*

ET_QC

ET quality control.

* estimated min or max value

Image Properties

Image Properties

Name Type Description
days_of_coverage DOUBLE

Number of days covered by each image since the period of coverage for the last asset of the year can be of varying length

Terms of Use

Terms of Use

All NTSG data distributed through this site has no restrictions on subsequent use, sale, or redistribution.

Citations

Citations:
  • Qiaozhen Mu, Maosheng Zhao, Steven W. Running and Numerical Terradynamic Simulation Group (2014): MODIS Global Terrestrial Evapotranspiration (ET) Product MOD16A2 Collection 5.

Explore in Earth Engine

var dataset = ee.ImageCollection('MODIS/NTSG/MOD16A2/105')
                  .filter(ee.Filter.date('2014-04-01', '2014-06-01'));
var evapotranspiration = dataset.select('ET');
var evapotranspirationVis = {
  min: 0.0,
  max: 300.0,
  palette:
      ['a50000', 'ff4f1a', 'f1e342', 'c7ef1f', '05fff3', '1707ff', 'd90bff'],
};
Map.setCenter(6.746, 46.529, 2);
Map.addLayer(evapotranspiration, evapotranspirationVis, 'Evapotranspiration');

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