El NDVI de GIMMS se genera a partir de varios sensores AVHRR de la NOAA para una cuadrícula global de latitud y longitud de 1/12 de grado. La versión más reciente del conjunto de datos del NDVI de GIMMS se llama NDVI3g (NDVI de GIMMS de tercera generación a partir de sensores AVHRR).
Bandas
Tamaño de píxel 9277 metros
Bandas
Nombre
Mín.
Máx.
Tamaño de los píxeles
Descripción
ndvi
-1
1
metros
NDVI
qa
metros
Marca de QA
Máscara de bits para qa
Bits 0 a 2: Valores de la marca de QA
1: Buena relación calidad-precio
2: Buen precio
3: NDVI recuperado de la interpolación spline
4: NDVI recuperado de la interpolación de spline, posiblemente nieve
5: NDVI recuperado del perfil estacional promedio
6: NDVI recuperado del perfil estacional promedio, posiblemente nieve
El NDVI de GIMMS se genera a partir de varios sensores AVHRR de la NOAA para una cuadrícula global de latitud y longitud de 1/12 de grado. La versión más reciente del conjunto de datos del NDVI de GIMMS se denomina NDVI3g (NDVI de GIMMS de tercera generación a partir de sensores AVHRR).
[null,null,[],[[["\u003cp\u003eThe NASA/GIMMS/3GV0 dataset provides Normalized Difference Vegetation Index (NDVI) data derived from NOAA's AVHRR sensors.\u003c/p\u003e\n"],["\u003cp\u003eIt offers global coverage at a 1/12-degree spatial resolution, spanning from July 1981 to December 2013.\u003c/p\u003e\n"],["\u003cp\u003eThis third-generation GIMMS NDVI dataset (NDVI3g) is publicly available and can be used without restrictions.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset includes NDVI and quality assurance (QA) bands, with the NDVI values ranging from -1 to 1.\u003c/p\u003e\n"],["\u003cp\u003eUsers can access and analyze this dataset using Google Earth Engine.\u003c/p\u003e\n"]]],[],null,["# GIMMS NDVI From AVHRR Sensors (3rd Generation)\n\nDataset Availability\n: 1981-07-01T00:00:00Z--2013-12-16T00:00:00Z\n\nDataset Provider\n:\n\n\n [NASA/NOAA](https://nex.nasa.gov/nex/projects/1349/)\n\nCadence\n: 15 Days\n\nTags\n:\n [avhrr](/earth-engine/datasets/tags/avhrr) [nasa](/earth-engine/datasets/tags/nasa) [ndvi](/earth-engine/datasets/tags/ndvi) [noaa](/earth-engine/datasets/tags/noaa) [vegetation](/earth-engine/datasets/tags/vegetation) [vegetation-indices](/earth-engine/datasets/tags/vegetation-indices) \ngimms \n\n#### Description\n\nGIMMS NDVI is generated from several NOAA's AVHRR sensors for a global\n1/12-degree lat/lon grid. The latest version of the GIMMS NDVI dataset\nis named NDVI3g (third generation GIMMS NDVI from AVHRR sensors).\n\n### Bands\n\n\n**Pixel Size**\n\n9277 meters\n\n**Bands**\n\n| Name | Min | Max | Pixel Size | Description |\n|--------|-----|-----|------------|-------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `ndvi` | -1 | 1 | meters | NDVI |\n| `qa` | | | meters | QA flag |\n| Bitmask for qa - Bits 0-2: QA flag values - 1: Good value - 2: Good value - 3: NDVI retrieved from spline interpolation - 4: NDVI retrieved from spline interpolation, possibly snow - 5: NDVI retrieved from average seasonal profile - 6: NDVI retrieved from average seasonal profile, possibly snow - 7: Missing data ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n### Terms of Use\n\n**Terms of Use**\n\nThis dataset is in the public domain and is available\nwithout restriction on use and distribution. See [NASA's\nEarth Science Data \\& Information Policy](https://www.earthdata.nasa.gov/engage/open-data-services-and-software/data-and-information-policy)\nfor additional information.\n\n### Explore with Earth Engine\n\n| **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.](https://console.cloud.google.com/earth-engine)\n\n### Code Editor (JavaScript)\n\n```javascript\nvar dataset = ee.ImageCollection('NASA/GIMMS/3GV0')\n .filter(ee.Filter.date('2013-06-01', '2013-12-31'));\nvar ndvi = dataset.select('ndvi');\nvar ndviVis = {\n min: -1.0,\n max: 1.0,\n palette: ['000000', 'f5f5f5', '119701'],\n};\nMap.setCenter(-88.6, 26.4, 1);\nMap.addLayer(ndvi, ndviVis, 'NDVI');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_GIMMS_3GV0) \n[GIMMS NDVI From AVHRR Sensors (3rd Generation)](/earth-engine/datasets/catalog/NASA_GIMMS_3GV0) \nGIMMS NDVI is generated from several NOAA's AVHRR sensors for a global 1/12-degree lat/lon grid. The latest version of the GIMMS NDVI dataset is named NDVI3g (third generation GIMMS NDVI from AVHRR sensors). \nNASA/GIMMS/3GV0, avhrr,nasa,ndvi,noaa,vegetation,vegetation-indices \n1981-07-01T00:00:00Z/2013-12-16T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://nex.nasa.gov/nex/projects/1349/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_GIMMS_3GV0)"]]
