Die Referenz-Evapotranspiration (RET) ist die Evapotranspiration einer hypothetischen Referenzpflanze und simuliert das Verhalten einer gut bewässerten Grasfläche. Jeder Pixel stellt die tägliche Referenz-Evapotranspiration in Millimetern dar.
Bänder
Pixelgröße 18924 Meter
Bänder
Name
Einheiten
Skalieren
Pixelgröße
Beschreibung
L1_RET_E
mm
0,1
Meter
Referenz-Evapotranspiration (täglich) [mm]
Nutzungsbedingungen
Nutzungsbedingungen
Die Ernährungs- und Landwirtschaftsorganisation der Vereinten Nationen (FAO) ist beauftragt, Informationen zu Ernährung, Lebensmitteln und Landwirtschaft zu sammeln, zu analysieren, zu interpretieren und zu verbreiten. In diesem Zusammenhang veröffentlicht sie eine Reihe von Datenbanken zu Themen, die mit dem Mandat der FAO zusammenhängen, und ermutigt zur Nutzung dieser Datenbanken für wissenschaftliche und Forschungszwecke. Entsprechend den Grundsätzen der Offenheit und des Teilens, die in der Open Data Licensing For Statistical Databases (Offene Datenlizenzierung für statistische Datenbanken) vorgesehen sind, und entsprechend dem Mandat der FAO sind Daten aus dem Water Productivity Open Access Portal (WaPOR) (Offenes Zugangsportal für Wasserproduktivität) als Teil von AQUASTAT – dem globalen Informationssystem der FAO für Wasser und Landwirtschaft – für die Nutzergemeinschaft kostenlos verfügbar.
Zitate
Quellenangaben:
FAO 2018. WaPOR Database Methodology: Level 1. Remote Sensing for Water
Productivity Technical Report: Methodology Series. Rom, FAO. 72 Seiten
Die Referenz-Evapotranspiration (RET) ist die Evapotranspiration einer hypothetischen Referenzpflanze und simuliert das Verhalten einer gut bewässerten Grasfläche. Jeder Pixel stellt die tägliche Referenz-Evapotranspiration in Millimetern dar.
[null,null,[],[[["\u003cp\u003eThe FAO WaPOR dataset provides daily reference evapotranspiration (RET) data from 2009-01-01 to 2023-03-20.\u003c/p\u003e\n"],["\u003cp\u003eRET represents the evapotranspiration from a hypothetical reference crop, simulating a well-watered grass surface.\u003c/p\u003e\n"],["\u003cp\u003eData is available at a 18924 meter resolution and is measured in millimeters (mm).\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is freely available for research and scientific purposes, courtesy of the Food and Agriculture Organization of the United Nations (FAO).\u003c/p\u003e\n"],["\u003cp\u003eUsers can access and analyze the data using Google Earth Engine.\u003c/p\u003e\n"]]],[],null,["# WAPOR Daily Reference Evapotranspiration 2.0\n\nDataset Availability\n: 2009-01-01T00:00:00Z--2023-03-20T00:00:00Z\n\nDataset Provider\n:\n\n\n [FAO UN](https://wapor.apps.fao.org/catalog/WAPOR_2/1/L1_RET_E)\n\nCadence\n: 1 Day\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\nReference evapotranspiration (RET) is defined as the evapotranspiration from a\nhypothetical reference crop and it simulates the behaviour of a well-watered\ngrass surface. Each pixel represents the daily reference evapotranspiration in mm.\n\n### Bands\n\n\n**Pixel Size**\n\n18924 meters\n\n**Bands**\n\n| Name | Units | Scale | Pixel Size | Description |\n|------------|-------|-------|------------|---------------------------------------------|\n| `L1_RET_E` | mm | 0.1 | meters | Reference Evapotranspiration (Daily) \\[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_RET_E');\nvar image = coll.first();\nMap.setCenter(17.5, 20, 3);\nMap.addLayer(image, {min: 0, max: 100});\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/FAO/FAO_WAPOR_2_L1_RET_E) \n[WAPOR Daily Reference Evapotranspiration 2.0](/earth-engine/datasets/catalog/FAO_WAPOR_2_L1_RET_E) \nReference evapotranspiration (RET) is defined as the evapotranspiration from a hypothetical reference crop and it simulates the behaviour of a well-watered grass surface. Each pixel represents the daily reference evapotranspiration in mm. \nFAO/WAPOR/2/L1_RET_E, agriculture,fao,wapor,water,water-vapor \n2009-01-01T00:00:00Z/2023-03-20T00:00:00Z \n-39.9953437 -30.15 40.0044643 65.13 \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_RET_E)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/FAO_WAPOR_2_L1_RET_E)"]]
