Articles | Volume 20, issue 9
https://doi.org/10.5194/bg-20-1789-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-1789-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 May 2023
Research article |
| 16 May 2023
| 16 May 2023
Continuous ground monitoring of vegetation optical depth and water content with GPS signals
Vincent Humphrey
CORRESPONDING AUTHOR
Division of Geological and Planetary Sciences, California Institute of
Technology, Pasadena, CA, USA
Department of Geography, University of Zürich, Zurich,
Switzerland
Christian Frankenberg
Division of Geological and Planetary Sciences, California Institute of
Technology, Pasadena, CA, USA
Jet Propulsion Laboratory, California Institute of Technology,
Pasadena, CA, USA
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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.
Microwave satellites can be used to monitor how vegetation biomass changes over time or how...
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