NOAA CDR AVHRR NDVI: Normalized Difference Vegetation Index, Version 5

Dataset Availability

1981-06-24T00:00:00Z–2013-12-31T00:00:00Z

Dataset Provider

NOAA

Earth Engine Snippet

ee.ImageCollection("NOAA/CDR/AVHRR/NDVI/V5")

Tags

avhrr cdr daily land ndvi noaa

Description

The NOAA Climate Data Record (CDR) of AVHRR Normalized Difference Vegetation Index (NDVI) contains gridded daily NDVI derived from the NOAA AVHRR Surface Reflectance product. It provides a measurement of surface vegetation coverage activity, gridded at a resolution of 0.05° and computed globally over land surfaces.

Known issues with this dataset include:

• TIMEOFDAY variable contains values that are too large by 1 day

• Latitude values are not correctly associated with the center of the grid cell, error is < 0.002 degrees

• Longitude values are not correctly associated with the center of the grid cell, error is < 0.02 degrees

See technical note from the data provider.

Provider's note: the orbital drift of N-19 (the last NOAA satellite carrying the AVHRR sensor) began to severely degrade the retrieved product quality. Therefore, VIIRS is now the primary sensor being used for these products from 2014-present.

Bands

Resolution
5566 meters

Bands

Name	Units	Min	Max	Scale	Description
NDVI		-9998*	9998*	0.0001	Normalized difference vegetation index
TIMEOFDAY	h	0*	2400*	0.01	Hours since start of day
QA					Quality control bit flags
Bitmask for QA Bit 0: Unused 0: No 1: Yes Bit 1: Pixel is cloudy 0: No 1: Yes Bit 2: Pixel contains cloud shadow 0: No 1: Yes Bit 3: Pixel is over water 0: No 1: Yes Bit 4: Pixel is over sunglint 0: No 1: Yes Bit 5: Pixel is over dense dark vegetation 0: No 1: Yes Bit 6: Pixel is at night (high solar zenith) 0: No 1: Yes Bit 7: Channels 1-5 are valid 0: No 1: Yes Bit 8: Channel 1 value is invalid 0: No 1: Yes Bit 9: Channel 2 value is invalid 0: No 1: Yes Bit 10: Channel 3 value is invalid 0: No 1: Yes Bit 11: Channel 4 value is invalid 0: No 1: Yes Bit 12: Channel 5 value is invalid 0: No 1: Yes Bit 13: RHO3 value is invalid 0: No 1: Yes Bit 14: BRDF correction is invalid 0: No 1: Yes Bit 15: Polar flag, latitude over 60 degrees (land) or 50 degrees (ocean) 0: No 1: Yes

* estimated min or max value

Image Properties

Image Properties

Name	Type	Description
status	STRING	'provisional' or 'permanent'

Terms of Use

Terms of Use

The NOAA CDR Program's official distribution point for CDRs is NOAA's National Climatic Data Center which provides sustained, open access and active data management of the CDR packages and related information in keeping with the United States' open data policies and practices as described in the President's Memorandum on "Open Data Policy" and pursuant to the Executive Order of May 9, 2013, "Making Open and Machine Readable the New Default for Government Information". In line with these policies, the CDR data sets are nonproprietary, publicly available, and no restrictions are placed upon their use. For more information, see the Fair Use of NOAA's CDR Data Sets, Algorithms and Documentation pdf.

Citations

Citations:

• Eric Vermote, Chris Justice, Ivan Csiszar, Jeff Eidenshink, Ranga Myneni, Frederic Baret, Ed Masuoka, Robert Wolfe, Martin Claverie and NOAA CDR Program (2014): NOAA Climate Data Record (CDR) of Normalized Difference Vegetation Index (NDVI), Version 4. [indicate subset used]. NOAA National Climatic Data Center. doi:10.7289/V5PZ56R6

DOIs

• https://doi.org/10.7289/V5PZ56R6

Explore with Earth Engine

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Code Editor (JavaScript)

var dataset = ee.ImageCollection('NOAA/CDR/AVHRR/NDVI/V5')
                  .filter(ee.Filter.date('2018-05-01', '2018-06-01'));
var ndvi = dataset.select('NDVI');
var ndviVis = {
  min: -1000.0,
  max: 5000.0,
  palette: [
    'ffffff', 'ce7e45', 'fcd163', 'c6ca02', '22cc04', '99b718', '207401',
    '012e01'
  ],
};
Map.setCenter(7.71, 17.93, 2);
Map.addLayer(ndvi, ndviVis, 'NDVI');

Open in Code Editor

NOAA CDR AVHRR NDVI: Normalized Difference Vegetation Index, Version 5

The NOAA Climate Data Record (CDR) of AVHRR Normalized Difference Vegetation Index (NDVI) contains gridded daily NDVI derived from the NOAA AVHRR Surface Reflectance product. It provides a measurement of surface vegetation coverage activity, gridded at a resolution of 0.05° and computed globally over land surfaces. Known issues with this …

NOAA/CDR/AVHRR/NDVI/V5, avhrr,cdr,daily,land,ndvi,noaa

1981-06-24T00:00:00Z/2013-12-31T00:00:00Z

Google Earth Engine

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

• https://doi.org/10.7289/V5PZ56R6