Articles | Volume 20, issue 9
Research article
16 May 2023
Research article |  | 16 May 2023

Continuous ground monitoring of vegetation optical depth and water content with GPS signals

Vincent Humphrey and Christian Frankenberg

Data sets

GNSS measurements at a pair of sites (clear-sky and forested) used to calculate GNSS-VOD Vincent Humphrey

Short summary
Microwave satellites can be used to monitor how vegetation biomass changes over time or how droughts affect the world's forests. However, such satellite data are still difficult to validate and interpret because of a lack of comparable field observations. Here, we present a remote sensing technique that uses the Global Navigation Satellite System (GNSS) as a makeshift radar, making it possible to observe canopy transmissivity at any existing environmental research site in a cost-efficient way.
Final-revised paper