This Google Earth Engine app allows you to compare different pasture datasets, including:
- Global Pasture Watch 2020
- ESA WorldCover v2 2021
- GLAD GLCLU 2020
- GLC FCS 2020
Features:
- Visualize pasture maps from different sources.
- Compare maps side-by-side with opacity control.
- Get information about the classes of each map by clicking on the points.
- Explore example regions around the world.
- Interactive legends for each dataset.
How to use:
- Open the app in Google Earth Engine.
- Select the datasets you want to visualize.
- Adjust the opacity of the layers with the sliders.
- Click on the map to get information about the classes at the selected point.
- Use the "Example regions" dropdown to center the map on different areas of interest.
Data:
- Global Pasture Watch 2020:
projects/gaia-319808/assets/gpw/gpw_grassland_rf-savgol-bthr_c_30m_20200101_20201231_go_epsg-4326_v1 - ESA WorldCover v2 2021:
ESA/WorldCover/v200 - GLAD GLCLU 2020:
projects/glad/GLCLU2020/v2/LCLUC_2020 - GLC FCS 2020:
projects/sat-io/open-datasets/GLC-FCS30D/annual
Code:
The source code of the app is available in this repository. It is organized in different files to facilitate maintenance and reuse:
index.js: Main logic of the app.ui.js: Functions to create the user interface.map.js: Functions to manage the map.data.js: Functions to load and process the data.layers.js: Defines the data layers, their characteristics, and visibility.styles.js: Defines map styles, such as shades of grey and highlighted elements.
Remarks:
- This app was developed in Google Earth Engine.
- You need a Google Earth Engine account to run the app.
Authors:
Tharles de Sousa Andrade - [email protected] | Jairo Matos da Rocha - [email protected] | Maria O'Healy Hunter - [email protected] | Vinícius Vieira Mesquita - [email protected]