Le système de classification WorldCereal de l'Agence spatiale européenne (ESA) vise à générer des produits dans le mois suivant la fin d'une saison de croissance spécifique. En raison de la nature dynamique de ces saisons de croissance à travers le monde, une stratification mondiale en zones agro-écologiques (ZAE) a été effectuée sur la base des calendriers agricoles mondiaux créés dans le cadre du projet [1]. La collection d'entités de ce jeu de données contient les 106 zones agroécologiques pour lesquelles les produits WorldCereal ont été générés. Chaque AEZ possède des calendriers de culture uniques, décrits en fonction du début et de la fin de la saison. Le SOS et l'EOS sont indiqués en jour de l'année (DOY). Pour en savoir plus sur la stratification des zones agro-écologiques et la génération de produits WorldCereal, consultez [2].
Propriétés des AEZ :
aez_id : identifiant unique de chaque AEZ. Les produits WorldCereal peuvent être filtrés en fonction de cet ID.
aez_groupid : l'ID de groupe combine plusieurs AEZ uniques en un groupe en fonction de la similarité du calendrier des cultures.
tc-annual_sos : SOS de la saison tc-annual (jour de l'année)
tc-annual_eos : fin de la saison tc-annual (jour de l'année)
tc-wintercereals_sos: SOS of the tc-wintercereals season (DOY)
tc-wintercereals_eos: EOS de la saison tc-wintercereals (jour de l'année)
tc-springcereals_sos: SOS de la saison tc-springcereals (DOY)
tc-springcereals_eos: EOS de la saison tc-springcereals (jour de l'année)
tc-maize-main_sos: SOS de la saison tc-maize-main (DOY)
tc-maize-main_eos: EOS de la saison tc-maize-main (jour de l'année)
tc-maize-second_sos: SOS of the tc-maize-second season (DOY)
tc-maize-second_eos : fin de la deuxième saison de maïs (jour de l'année)
Les valeurs manquantes de SOS et EOS indiquent l'absence de la saison de croissance respective dans une ZAE particulière.
Van Tricht, K., Degerickx, J., Gilliams, S., Zanaga, D., Battude, M., Grosu,
A., Brombacher, J., Lesiv, M., Bayas, J. C. L., Karanam, S., Fritz, S.,
Becker-Reshef, I., Franch, B., Mollà-Bononad, B., Boogaard, H., Pratihast,
A. K., et Szantoi, Z.: WorldCereal : un système Open Source dynamique pour la cartographie saisonnière et reproductible des cultures et de l'irrigation à l'échelle mondiale, Earth Syst. Sci. Data Discuss. [preprint],
doi:10.5194/essd-2023-184, en cours d'examen, 2023.,
Le système de classification WorldCereal de l'Agence spatiale européenne (ESA) vise à générer des produits dans un délai d'un mois après la fin d'une saison de croissance donnée. En raison de la nature dynamique de ces saisons de croissance à travers le monde, une stratification mondiale en zones agro-écologiques (ZAE) a été effectuée sur la base des calendriers agricoles mondiaux…
[null,null,[],[[["\u003cp\u003eThe ESA WorldCereal dataset provides a global stratification into 106 Agro-Ecological Zones (AEZs) based on crop calendars.\u003c/p\u003e\n"],["\u003cp\u003eEach AEZ is characterized by unique start and end dates for growing seasons of various crops like maize and cereals.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset enables the generation of crop and irrigation maps within one month after the end of a growing season.\u003c/p\u003e\n"],["\u003cp\u003eIt includes information on the start and end of season (SOS and EOS) in day of year (DOY) for different crop types within each AEZ.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is available for the period between 2020-01-01 and 2022-01-01 and is accessible through Google Earth Engine.\u003c/p\u003e\n"]]],["The ESA WorldCereal dataset, provided by the ESA WorldCereal Consortium, spans from 2020-01-01 to 2022-01-01. It offers a feature collection of 106 Agro-Ecological Zones (AEZs) with unique crop calendars. Each AEZ includes start and end of season (SOS/EOS) data, identified by properties like `aez_id`, `aez_groupid` and different seasonal indicators. Data is accessible via Earth Engine, using specific code snippets, for global crop and agricultural analysis.\n"],null,["# ESA WorldCereal AEZ v100\n\nDataset Availability\n: 2020-01-01T00:00:00Z--2022-01-01T00:00:00Z\n\nDataset Provider\n:\n\n\n [ESA WorldCereal Consortium](https://esa-worldcereal.org/en)\n\nTags\n:\n[agriculture](/earth-engine/datasets/tags/agriculture) [boundaries](/earth-engine/datasets/tags/boundaries) [crop](/earth-engine/datasets/tags/crop) [esa](/earth-engine/datasets/tags/esa) [global](/earth-engine/datasets/tags/global) [table](/earth-engine/datasets/tags/table) \n\n#### Description\n\nThe [European Space Agency (ESA) WorldCereal](https://esa-worldcereal.org/)\nclassification system aims for product generation within one month after the\nend of a particular growing season. Due to the dynamic nature of these\ngrowing seasons across the globe, a global stratification into\nAgro-Ecological Zones (AEZ) was performed based on the global crop calendars\ncreated within the project \\[1\\]. The feature collection in this dataset\ncontains the 106 AEZ for which WorldCereal products were generated. Each AEZ\nhas unique crop calendars, described based on their start of season (SOS)\nand end of season (EOS). SOS and EOS are given in day of year (DOY). More\ninformation on the AEZ stratification and the subsequent WorldCereal product\ngeneration is described in \\[2\\].\n\nAEZ properties:\n\n- aez_id: the unique ID of each AEZ. WorldCereal products can be filtered based on this ID\n- aez_groupid: the group ID combines several unique AEZ into a group based on crop calendar similarity.\n- tc-annual_sos: SOS of the tc-annual season (DOY)\n- tc-annual_eos: EOS of the tc-annual season (DOY)\n- tc-wintercereals_sos: SOS of the tc-wintercereals season (DOY)\n- tc-wintercereals_eos: EOS of the tc-wintercereals season (DOY)\n- tc-springcereals_sos: SOS of the tc-springcereals season (DOY)\n- tc-springcereals_eos: EOS of the tc-springcereals season (DOY)\n- tc-maize-main_sos: SOS of the tc-maize-main season (DOY)\n- tc-maize-main_eos: EOS of the tc-maize-main season (DOY)\n- tc-maize-second_sos: SOS of the tc-maize-second season (DOY)\n- tc-maize-second_eos: EOS of the tc-maize-second season (DOY)\n\nMissing values of SOS and EOS indicate the absence of the respective growing\nseason in a particular AEZ.\n\nReferences:\n\n- \\[1\\] [WorldCereal global seasonality paper](https://doi.org/10.1080/15481603.2022.2079273)\n- \\[2\\] [WorldCereal methodology and products paper](https://doi.org/10.5194/essd-2023-184)\n\nWorldCereal datasets:\n\n- Version 100 for year 2021\n - [ESA/WorldCereal/AEZ/v100](/earth-engine/datasets/catalog/ESA_WorldCereal_AEZ_v100)\n - [ESA/WorldCereal/2021/MODELS/v100](/earth-engine/datasets/catalog/ESA_WorldCereal_2021_MODELS_v100)\n - [ESA/WorldCereal/2021/MARKERS/v100](/earth-engine/datasets/catalog/ESA_WorldCereal_2021_MARKERS_v100)\n\n### Table Schema\n\n**Table Schema**\n\n| Name | Type | Description |\n|----------------------|------|------------------------------------------------------------------------------------------|\n| aez_id | INT | The unique ID of an AEZ. |\n| aez_groupid | INT | The group ID combines several unique AEZ into a group based on crop calendar similarity. |\n| tc-annual_sos | INT | SOS of the tc-annual season (DOY). |\n| tc-annual_eos | INT | EOS of the tc-annual season (DOY). |\n| tc-wintercereals_sos | INT | SOS of the tc-wintercereals season (DOY). |\n| tc-wintercereals_eos | INT | EOS of the tc-wintercereals season (DOY). |\n| tc-springcereals_sos | INT | SOS of the tc-springcereals season (DOY). |\n| tc-springcereals_eos | INT | EOS of the tc-springcereals season (DOY). |\n| tc-maize-main_sos | INT | SOS of the tc-maize-main season (DOY). |\n| tc-maize-main_eos | INT | EOS of the tc-maize-main season (DOY). |\n| tc-maize-second_sos | INT | SOS of the tc-maize-second season (DOY). |\n| tc-maize-second_eos | INT | EOS of the tc-maize-second season (DOY). |\n\n### Terms of Use\n\n**Terms of Use**\n\n[CC-BY-4.0](https://spdx.org/licenses/CC-BY-4.0.html)\n\n### Citations\n\nCitations:\n\n- Van Tricht, K., Degerickx, J., Gilliams, S., Zanaga, D., Battude, M., Grosu,\n A., Brombacher, J., Lesiv, M., Bayas, J. C. L., Karanam, S., Fritz, S.,\n Becker-Reshef, I., Franch, B., Mollà-Bononad, B., Boogaard, H., Pratihast,\n A. K., and Szantoi, Z.: WorldCereal: a dynamic open-source system for\n global-scale, seasonal, and reproducible crop and irrigation mapping, Earth\n Syst. Sci. Data Discuss. \\[preprint\\],\n [doi:10.5194/essd-2023-184](https://doi.org/10.5194/essd-2023-184), in\n review, 2023.,\n\n### DOIs\n\n- \u003chttps://doi.org/10.5194/essd-2023-184\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 aez = ee.FeatureCollection('ESA/WorldCereal/AEZ/v100');\n\n// Find the AEZs with multiple growing seasons for maize and cereal.\nvar twoMaizeAez =\n aez.filter(ee.Filter.notNull(['tc-maize-main_eos', 'tc-maize-second_eos']));\nvar twoCerealAez = aez.filter(\n ee.Filter.notNull(['tc-wintercereals_eos', 'tc-springcereals_eos']));\n\nMap.addLayer(\n twoMaizeAez.draw('ff0000', 1, 2), {}, 'AEZ with two maize seasons');\nMap.addLayer(\n twoCerealAez.draw('0000ff', 1, 2), {}, 'AEZ with two cereal seasons');\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/ESA/ESA_WorldCereal_AEZ_v100)\n\n### Visualize as a FeatureView\n\n\nA `FeatureView` is a view-only, accelerated representation of a\n`FeatureCollection`. For more details, visit the\n[`FeatureView` documentation.](/earth-engine/guides/featureview_overview)\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 aezLayer = ui.Map.FeatureViewLayer('ESA/WorldCereal/AEZ/v100_FeatureView');\nvar visParams = {\n opacity: 0.5,\n lineWidth: 5,\n polygonFillColor: 'red'\n};\n\naezLayer.setVisParams(visParams);\naezLayer.setName('Agro-Ecological Zones');\n\nMap.setCenter(15.5, 35.5, 3);\nMap.add(aezLayer);\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/ESA/ESA_WorldCereal_AEZ_v100_FeatureView) \n[ESA WorldCereal AEZ v100](/earth-engine/datasets/catalog/ESA_WorldCereal_AEZ_v100) \nThe European Space Agency (ESA) WorldCereal classification system aims for product generation within one month after the end of a particular growing season. Due to the dynamic nature of these growing seasons across the globe, a global stratification into Agro-Ecological Zones (AEZ) was performed based on the global crop calendars ... \nESA/WorldCereal/AEZ/v100, agriculture,boundaries,crop,esa,global,table \n2020-01-01T00:00:00Z/2022-01-01T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5194/essd-2023-184](https://doi.org/https://esa-worldcereal.org/en)\n- [https://doi.org/10.5194/essd-2023-184](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/ESA_WorldCereal_AEZ_v100)"]]
