ESA WorldCereal AEZ v100

ESA/WorldCereal/AEZ/v100
Dataset Availability
2020-01-01T00:00:00Z–2022-01-01T00:00:00Z
Dataset Provider
Earth Engine Snippet
FeatureCollection
ee.FeatureCollection("ESA/WorldCereal/AEZ/v100")
FeatureView
ui.Map.FeatureViewLayer("ESA/WorldCereal/AEZ/v100_FeatureView")

Description

The 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 created within the project [1]. The feature collection in this dataset contains the 106 AEZ for which WorldCereal products were generated. Each AEZ has unique crop calendars, described based on their start of season (SOS) and end of season (EOS). SOS and EOS are given in day of year (DOY). More information on the AEZ stratification and the subsequent WorldCereal product generation is described in [2].

AEZ properties:

  • aez_id: the unique ID of each AEZ. WorldCereal products can be filtered based on this ID
  • aez_groupid: the group ID combines several unique AEZ into a group based on crop calendar similarity.
  • tc-annual_sos: SOS of the tc-annual season (DOY)
  • tc-annual_eos: EOS of the tc-annual season (DOY)
  • tc-wintercereals_sos: SOS of the tc-wintercereals season (DOY)
  • tc-wintercereals_eos: EOS of the tc-wintercereals season (DOY)
  • tc-springcereals_sos: SOS of the tc-springcereals season (DOY)
  • tc-springcereals_eos: EOS of the tc-springcereals season (DOY)
  • tc-maize-main_sos: SOS of the tc-maize-main season (DOY)
  • tc-maize-main_eos: EOS of the tc-maize-main season (DOY)
  • tc-maize-second_sos: SOS of the tc-maize-second season (DOY)
  • tc-maize-second_eos: EOS of the tc-maize-second season (DOY)

Missing values of SOS and EOS indicate the absence of the respective growing season in a particular AEZ.

References:

WorldCereal datasets:

Table Schema

Table Schema

Name Type Description
aez_id INT

The unique ID of an AEZ.
aez_groupid INT

The group ID combines several unique AEZ into a group based on crop calendar similarity.
tc-annual_sos INT

SOS of the tc-annual season (DOY).
tc-annual_eos INT

EOS of the tc-annual season (DOY).
tc-wintercereals_sos INT

SOS of the tc-wintercereals season (DOY).
tc-wintercereals_eos INT

EOS of the tc-wintercereals season (DOY).
tc-springcereals_sos INT

SOS of the tc-springcereals season (DOY).
tc-springcereals_eos INT

EOS of the tc-springcereals season (DOY).
tc-maize-main_sos INT

SOS of the tc-maize-main season (DOY).
tc-maize-main_eos INT

EOS of the tc-maize-main season (DOY).
tc-maize-second_sos INT

SOS of the tc-maize-second season (DOY).
tc-maize-second_eos INT

EOS of the tc-maize-second season (DOY).

Terms of Use

Terms of Use

CC-BY-4.0

Citations

Citations:

  • 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., and Szantoi, Z.: WorldCereal: a dynamic open-source system for global-scale, seasonal, and reproducible crop and irrigation mapping, Earth Syst. Sci. Data Discuss. [preprint], doi:10.5194/essd-2023-184, in review, 2023.,

DOIs

Explore with Earth Engine

Code Editor (JavaScript)

var aez = ee.FeatureCollection('ESA/WorldCereal/AEZ/v100');

// Find the AEZs with multiple growing seasons for maize and cereal.
var twoMaizeAez =
    aez.filter(ee.Filter.notNull(['tc-maize-main_eos', 'tc-maize-second_eos']));
var twoCerealAez = aez.filter(
    ee.Filter.notNull(['tc-wintercereals_eos', 'tc-springcereals_eos']));

Map.addLayer(
    twoMaizeAez.draw('ff0000', 1, 2), {}, 'AEZ with two maize seasons');
Map.addLayer(
    twoCerealAez.draw('0000ff', 1, 2), {}, 'AEZ with two cereal seasons');
Open in Code Editor

Visualize as a FeatureView

A FeatureView is a view-only, accelerated representation of a FeatureCollection. For more details, visit the FeatureView documentation.

Code Editor (JavaScript)

var aezLayer = ui.Map.FeatureViewLayer('ESA/WorldCereal/AEZ/v100_FeatureView');
var visParams = {
  opacity: 0.5,
  lineWidth: 5,
  polygonFillColor: 'red'
};

aezLayer.setVisParams(visParams);
aezLayer.setName('Agro-Ecological Zones');

Map.setCenter(15.5, 35.5, 3);
Map.add(aezLayer);
Open in Code Editor
The 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 …
ESA/WorldCereal/AEZ/v100, agriculture,boundaries,crop,esa,global,table
2020-01-01T00:00:00Z/2022-01-01T00:00:00Z
Google Earth Engine