Research

Mapping large-scale pantropical forest canopy height by integrating GEDI lidar and TanDEM-X InSAR data

Fusing NASA's GEDI spaceborne lidar with TanDEM-X radar interferometry produces high-resolution pantropical forest canopy height maps at 25 m resolution, overcoming GEDI's 4% spatial sampling limitation to deliver wall-to-wall coverage.

Global blue carbon losses from salt marshes exceed restoration gains

Global salt marsh soils lost 0.52 million tonnes of carbon from 2002 to 2019, with the United States alone accounting for 60% of the loss, meaning restoration gains are failing to keep pace with degradation of mature marshes.

Global high-resolution mapping of seagrass to support conservation

The first global 10 m resolution seagrass maps reveal only 21% of the world's 148,506 km2 of seagrass lies within marine protected areas, with 4% lost in just four years.

Mangrove Species Mapping in Coastal China Using Synthesized Sentinel-2 High-Separability Images

The first national-scale mangrove species map for China, covering nine species at 10 m resolution, achieved 83.8-86.4% accuracy and revealed extensive planting of exotic species in mid-latitude regions where they outcompete native mangroves.

Near Real-Time Monitoring of Tropical Forest Disturbance by Fusion of Landsat, Sentinel-2, and Sentinel-1 Data

A fusion algorithm combining Landsat, Sentinel-2, and Sentinel-1 detects 70% of tropical forest disturbances within 30 days at 91% user accuracy, significantly outperforming any single-sensor approach, with the full implementation publicly available on Google Earth Engine.

Refining land-use-specific carbon emission factors for commodity-driven deforestation monitoring in Colombia

Pasture expansion drives 65% of Colombia's deforestation emissions; cocoa and coffee show high emission factors despite small areas.