ESA WorldCereal Active Cropland 10 m v100

ESA/WorldCereal/2021/MARKERS/v100
Dataset Availability
2020-01-01T00:00:00Z–2021-12-31T23:59:59
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("ESA/WorldCereal/2021/MARKERS/v100")
Tags
agriculture copernicus crop esa global landcover landsat sentinel1-derived sentinel2-derived

Description

The European Space Agency (ESA) WorldCereal Active Cropland 10 m 2021 product suite contains global-scale seasonal active cropland markers. They were generated as part of the ESA-WorldCereal project. The active cropland products indicate whether or not a pixel identified as temporary crops has been actively cultivated during a specific growing season. In order for a pixel to be labeled as “active” during a particular growing season, a full crop growth cycle (sowing, growing, senescence and harvesting) needs to take place within the designated time period. Note that this active marker is not crop-type specific. Any crop grown (slightly) outside the predefined growing seasons will not be flagged as active cropland in any of the seasons covered by the WorldCereal system. The active marker results from running a growing season detection algorithm [1] on the Sentinel-2 derived enhanced vegetation index (EVI). More information on the methodology used to generate these products is described in [2].

This collection contains up to 106 agro-ecological zone (AEZ) images per crop season, where each AEZ has its own seasonality. The seasons for which the active cropland marker is available are described in the list below and were developed in [3] as part of the project.

WorldCereal seasons description:

  • tc-wintercereals: the main cereals season defined in an AEZ
  • tc-springcereals: optional springcereals season, only defined in certain AEZ
  • tc-maize-main: the main maize season defined in an AEZ
  • tc-maize-second: optional second maize season, only defined in certain AEZ

Each product (image) has a binary classification band where value 0 corresponds to inactive cropland and value 100 corresponds to active cropland.

The collection should be filtered using one or more of the following image properties:

  • aez_id, holding the ID of the AEZ to which the image belongs
  • season, describing the season for which the image is valid.

References:

WorldCereal datasets:

Bands

Resolution
10 meters

Bands

Name Min Max Description
classification 0 100

Classification: 0 or 100

Image Properties

Image Properties

Name Type Description
aez_id INT

ID of the agro-ecological zone (AEZ) to which the product belongs.

product STRING

WorldCereal product name.

season STRING

Season for which the product is valid.

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 dataset = ee.ImageCollection('ESA/WorldCereal/2021/MARKERS/v100')

// Filter on AEZ
var aez_46173 = dataset.filter('aez_id == 46173');

// Get the active cropland marker for the different seasons
var activemarker_summerseason = aez_46173.filter('season == "tc-maize-main"');
var activemarker_winterseason = aez_46173.filter('season == "tc-wintercereals"');

// Visualization specifics: red is inactive, green is active cropland
var visualization = {
  bands: ['classification'],
  max: 100,
  palette: ['eb0000', '37e622']
};

// Show active cropland in two major growing seasons in US.
Map.addLayer(activemarker_summerseason, visualization, 'Active cropland tc-maize-main');
Map.addLayer(activemarker_winterseason, visualization, 'Active cropland tc-wintercereals');

Map.setCenter(-98.987, 38.0454, 11)
Open in Code Editor