MOD16A2.006: Terra Net Evapotranspiration 8-Day Global 500m [deprecated]

Caution: This dataset has been superseded by MODIS/061/MOD16A2.

Dataset Availability

2001-01-01T00:00:00Z–2023-02-02T00:00:00Z

Dataset Provider

NASA LP DAAC at the USGS EROS Center

Earth Engine Snippet

ee.ImageCollection("MODIS/006/MOD16A2")

Cadence

8 Days

Tags

8-day

evapotranspiration

global

mod16a2

modis

nasa

water-vapor

Description

The MOD16A2 Version 6 Evapotranspiration/Latent Heat Flux product is an 8-day composite product produced at 500 meter pixel resolution. The algorithm used for the MOD16 data product collection is based on the logic of the Penman-Monteith equation, which includes inputs of daily meteorological reanalysis data along with MODIS remotely sensed data products such as vegetation property dynamics, albedo, and land cover.

The pixel values for the two Evapotranspiration layers (ET & PET) are the sum of all eight days within the composite period. The pixel values for the two Latent Heat layers (LE & PLE) are the average of all eight days within the composite period. Note that the last 8-day period of each year is a 5 or 6-day composite period, depending on the year.

According to the "Layers" section of the dataset docs, the class assignment in fill values 32761 through 32767 might be inaccurate. They are not included in the EE assets.

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
ET	kg/m^2/8day	-32767	32700	0.1	meters	Total evapotranspiration
LE	J/m^2/day	-32767	32700	10000	meters	Average latent heat flux
PET	kg/m^2/8day	-32767	32700	0.1	meters	Total potential evapotranspiration
PLE	J/m^2/day	-32767	32700	10000	meters	Average potential latent heat flux
ET_QC					meters	Evapotranspiration quality control flags
Bitmask for ET_QC Bit 0: MODLAND_QC bits 0: Good quality (main algorithm with or without saturation) 1: Other quality (back-up algorithm or fill values) 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: SCF_QC 5-level confidence quality score 0: Main (RT) method used, best result possible (no saturation) 1: Main (RT) method used with saturation. Good, very usable 2: Main (RT) method failed due to bad geometry, empirical algorithm used 3: Main (RT) method failed due to problems other than geometry, empirical algorithm used 4: Pixel not produced at all, value couldn't be retrieved (possible reasons: bad L1B data, unusable MOD09GA data)

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/MOD16A2.006

Explore with Earth Engine

Important: Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please register for Earth Engine access.

Code Editor (JavaScript)

var dataset = ee.ImageCollection('MODIS/006/MOD16A2')
                  .filter(ee.Filter.date('2018-01-01', '2018-05-01'));
var evapotranspiration = dataset.select('ET');
var evapotranspirationVis = {
  min: 0,
  max: 300,
  palette: [
    'ffffff', 'fcd163', '99b718', '66a000', '3e8601', '207401', '056201',
    '004c00', '011301'
  ],
};
Map.setCenter(6.746, 46.529, 2);
Map.addLayer(evapotranspiration, evapotranspirationVis, 'Evapotranspiration');

Open in Code Editor

MOD16A2.006: Terra Net Evapotranspiration 8-Day Global 500m [deprecated]

The MOD16A2 Version 6 Evapotranspiration/Latent Heat Flux product is an 8-day composite product produced at 500 meter pixel resolution. The algorithm used for the MOD16 data product collection is based on the logic of the Penman-Monteith equation, which includes inputs of daily meteorological reanalysis data along with MODIS remotely sensed …

MODIS/006/MOD16A2, 8-day,evapotranspiration,global,mod16a2,modis,nasa,water-vapor

2001-01-01T00:00:00Z/2023-02-02T00:00:00Z

-90 -180 90 180

Google Earth Engine

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

• https://doi.org/10.5067/MODIS/MOD16A2.006
• https://doi.org/10.5067/MODIS/MOD16A2.006