Interactive labs
Sample-size and accuracy calculators that reproduce the workshop spreadsheets, plus explorers for indices, decision trees and embeddings.
Map Bhutan's forests for ART-TREES
A free, hands-on course in Google Earth Engine, from cloud-free satellite composites to land-cover maps and area estimates with 90% confidence intervals, built for Bhutan's HFLD reporting.
Five days, one workflow
Section titled “Five days, one workflow”Day 1 · Earth Engine foundationsThe Code Editor, JavaScript, image collections, filters and reducers.
Day 2 · CompositesCloud and shadow masking, terrain correction, indices and seasonal composites for Bhutan.
Day 3 · ClassificationCovariates and Random Forest probability layers (primitives).
Day 4 · Land cover & embeddingsRLCMS assemblage, AlphaEarth satellite embeddings and Collect Earth Online.
Day 5 · Accuracy & areaStratified sampling, confusion matrices and area-adjusted estimates with uncertainty.
CapstoneMap a Dzongkhag, sample it, interpret it, and report accuracy and adjusted areas.
Built to be used
Section titled “Built to be used”Copy, run, adapt
Every exercise has a tested Earth Engine script in JavaScript and a Python (geemap) version.
Current standard
Requirements are cited from ART TREES 3.0 (June 2026), with notes where TREES 2.0 differs.
Adapted, with permission, from the Bhutan ART-TREES HFLD Readiness Training (May 2026) by Ate Poortinga and Samuel, Conservation International. Credits