L'évapotranspiration et l'interception réelles (ETIa) (dekadaires, en mm/jour) sont la somme de l'évaporation du sol (E), de la transpiration de la canopée (T) et de l'évaporation des précipitations interceptées par les feuilles (I). La valeur de chaque pixel représente l'ETIa quotidien moyen d'une décade donnée.
Bracelets
Taille des pixels 248,2 mètres
Bandes de fréquences
Nom
Unités
Échelle
Taille des pixels
Description
L1_AETI_D
mm
0,1
mètres
Évapotranspiration et interception réelles (décadaires) [mm]
Conditions d'utilisation
Conditions d'utilisation
L'Organisation des Nations Unies pour l'alimentation et l'agriculture (FAO) est chargée de collecter, d'analyser, d'interpréter et de diffuser des informations liées à la nutrition, à l'alimentation et à l'agriculture. À cet égard, elle publie un certain nombre de bases de données sur des sujets liés à son mandat et encourage leur utilisation à des fins scientifiques et de recherche. Conformément aux principes d'ouverture et de partage prévus par la licence Open Data pour les bases de données statistiques et au mandat de la FAO, les données du portail WaPOR (Water Productivity Open Access Portal), qui fait partie d'AQUASTAT, le système mondial d'information de la FAO sur l'eau et l'agriculture, sont disponibles sans frais pour la communauté des utilisateurs.
Citations
Citations :
FAO 2018. Méthodologie de la base de données WaPOR : niveau 1. Remote Sensing for Water
Productivity Technical Report: Methodology Series. Rome, FAO. 72 pages.
FAO 2020. Méthodologie de la base de données WaPOR V2. Remote Sensing for Water
Productivity Technical Report: Methodology Series. Rome, FAO.
https://www.fao.org/3/ca9894en/CA9894EN.pdf
L'évapotranspiration et l'interception réelles (ETIa) (dekadaires, en mm/jour) correspondent à la somme de l'évaporation du sol (E), de la transpiration de la canopée (T) et de l'évaporation des précipitations interceptées par les feuilles (I). La valeur de chaque pixel représente l'ETIa quotidien moyen au cours d'une décade donnée.
[null,null,[],[[["\u003cp\u003eThe FAO WaPOR dataset provides dekadal (10-day) estimates of actual evapotranspiration and interception (ETIa) in mm/day.\u003c/p\u003e\n"],["\u003cp\u003eETIa values represent the combined daily average of soil evaporation, plant transpiration, and interception evaporation by leaves.\u003c/p\u003e\n"],["\u003cp\u003eData is freely available for research and scientific purposes, covering the period from 2009-01-01 to 2023-03-01.\u003c/p\u003e\n"],["\u003cp\u003eSpatial resolution of the dataset is 248.2 meters.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is hosted on Google Earth Engine and can be accessed and analyzed using their platform.\u003c/p\u003e\n"]]],["The dataset, provided by FAO UN, contains actual evapotranspiration and interception (ETIa) data from 2009-01-01 to 2023-03-01, updated every 10 days. This data, measured in mm/day, represents the sum of soil evaporation, canopy transpiration, and rainfall intercepted by leaves. It's available on the Water Productivity Open Access Portal (WaPOR) and Earth Engine, where it is accessible via the snippet `ee.ImageCollection(\"FAO/WAPOR/2/L1_AETI_D\")` and has a 248.2-meter pixel size. The data is freely available for research, and scientific purposes.\n"],null,["# WAPOR Actual Evapotranspiration and Interception 2.0\n\nDataset Availability\n: 2009-01-01T00:00:00Z--2023-03-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [FAO UN](https://wapor.apps.fao.org/catalog/WAPOR_2/1/L1_AETI_D)\n\nCadence\n: 10 Days\n\nTags\n:\n[agriculture](/earth-engine/datasets/tags/agriculture) [fao](/earth-engine/datasets/tags/fao) [wapor](/earth-engine/datasets/tags/wapor) [water](/earth-engine/datasets/tags/water) [water-vapor](/earth-engine/datasets/tags/water-vapor) \n\n#### Description\n\nThe actual evapotranspiration and interception (ETIa) (dekadal, in mm/day)\nis the sum of the soil evaporation (E), canopy transpiration (T), and\nevaporation from rainfall intercepted by leaves (I). The value of each pixel\nrepresents the average daily ETIa in a given dekad.\n\n### Bands\n\n\n**Pixel Size**\n\n248.2 meters\n\n**Bands**\n\n| Name | Units | Scale | Pixel Size | Description |\n|-------------|-------|-------|------------|-------------------------------------------------------------|\n| `L1_AETI_D` | mm | 0.1 | meters | Actual Evapotranspiration and Interception (Dekadal) \\[mm\\] |\n\n### Terms of Use\n\n**Terms of Use**\n\nThe Food and Agriculture Organization of the United Nations (FAO) is\nmandated to collect, analyze, interpret, and disseminate information related\nto nutrition, food, and agriculture. In this regard, it publishes a number\nof databases on topics related to FAO's mandate, and encourages the use of\nthem for scientific and research purposes. Consistent with the principles\nof openness and sharing envisioned under the [Open Data Licensing For\nStatistical Databases](http://www.fao.org/3/ca7570en/ca7570en.pdf), and\nconsistent with the mandate of FAO, data from the [Water Productivity Open\nAccess Portal (WaPOR)](https://wapor.apps.fao.org/home/WAPOR_2/1), as part\nof [AQUASTAT](http://www.fao.org/aquastat/en/) - FAO's Global Information\nSystem on Water and Agriculture, is available free to the user community.\n\n### Citations\n\nCitations:\n\n- FAO 2018. WaPOR Database Methodology: Level 1. Remote Sensing for Water\n Productivity Technical Report: Methodology Series. Rome, FAO. 72 pages.\n- FAO 2020. WaPOR V2 Database Methodology. Remote Sensing for Water\n Productivity Technical Report: Methodology Series. Rome, FAO.\n \u003chttps://www.fao.org/3/ca9894en/CA9894EN.pdf\u003e\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 coll = ee.ImageCollection('FAO/WAPOR/2/L1_AETI_D');\nvar image = coll.first();\nMap.setCenter(17.5, 20, 3);\nMap.addLayer(image, {min: 0, max: 50});\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/FAO/FAO_WAPOR_2_L1_AETI_D) \n[WAPOR Actual Evapotranspiration and Interception 2.0](/earth-engine/datasets/catalog/FAO_WAPOR_2_L1_AETI_D) \nThe actual evapotranspiration and interception (ETIa) (dekadal, in mm/day) is the sum of the soil evaporation (E), canopy transpiration (T), and evaporation from rainfall intercepted by leaves (I). The value of each pixel represents the average daily ETIa in a given dekad. \nFAO/WAPOR/2/L1_AETI_D, agriculture,fao,wapor,water,water-vapor \n2009-01-01T00:00:00Z/2023-03-01T00:00:00Z \n-40.0044644 -30.0044643 40.0044643 65.0044644 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://wapor.apps.fao.org/catalog/WAPOR_2/1/L1_AETI_D)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/FAO_WAPOR_2_L1_AETI_D)"]]
