AQUA
type: Entity
type: Concept
in scheme: https://earth.esa.int/concepts/concept_scheme/platforms

EARTH SCIENCE>LAND SURFACE>LAND USE/LAND COVER>LAND USE/LAND COVER CLASSIFICATION>VEGETATION INDEX
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords

Aqua
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms

MODIS Aqua Vegetation Indices 16-Day L3 Global 250m
type: Dataset
description: The MODIS Aqua MYD13Q1 Version 6.1 product provides Vegetation Index (VI) values at 250 m spatial resolution on a per-pixel basis. The dataset includes two primary vegetation indices: the Normalized Difference Vegetation Index (NDVI), which maintains continuity with NDVI derived from NOAA-AVHRR observations, and the Enhanced Vegetation Index (EVI), which improves sensitivity in regions with high vegetation biomass. The product is generated as a 16-day composite, where the algorithm selects the best available pixel from all acquisitions within the compositing period based on criteria such as low cloud contamination, low view angle, and the highest NDVI/EVI value. In addition to the vegetation index layers and two quality layers, the dataset includes reflectance bands 1 (red), 2 (near-infrared), 3 (blue), and 7 (mid-infrared), as well as four observation layers.
language: EN
modified: 2026-08-08T00:00:00.000Z
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  start date: 2002-07-04T00:00:00.000Z
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keyword: DIF10
keyword: NDVI
keyword: Vegetation Index
keyword: NASA
keyword: aqua
keyword: 250m
keyword: modis
keyword: Vegetation
keyword: EVI
keyword: Global
keyword: MYD13Q1
keyword: Satellite
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was generated by: Activity
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CatalogRecord
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modified: 2026-08-08T01:00:51Z
source: https://fedeo.ceos.org/collections/modis-aqua-myd13q1

MODIS
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments

MODIS
type: Entity
type: Concept
in scheme: https://earth.esa.int/concepts/concept_scheme/instruments

https://fedeo.ceos.org/collections/modis-aqua-myd13q1
type: CatalogRecord
conforms to: ISO19139-2

EARTH SCIENCE>BIOSPHERE>VEGETATION
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords