satellite observations; Earth system; carbon cycle; drought; photosynthesis; water cycle; climate modeling; climate change; soil moisture; vegetation water content; terrestrial water storage; ecohydrology; biogeosciences; climatology; biogeochemistry; sun-induced fluorescence; vegetation optical depth; GNSS; GNSS reflectometry
HumphreyVincent, FrankenbergChristian (2022), Continuous ground monitoring of vegetation optical depth and water content with GPS signals, na-na.
Konings Alexandra G., Saatchi Sassan S., Frankenberg Christian, Keller Michael, Leshyk Victor, Anderegg William R. L., Humphrey Vincent, Matheny Ashley M., Trugman Anna, Sack Lawren, Agee Elizabeth, Barnes Mallory L., Binks Oliver, Cawse‐Nicholson Kerry, Christoffersen Bradley O., Entekhabi Dara, Gentine Pierre, Holtzman Nataniel M., Katul Gabriel G., Liu Yanlan, Longo Marcos, Martinez‐Vilalta Jordi, McDowell Nate, Meir Patrick, et al. (2021), Detecting forest response to droughts with global observations of vegetation water content, in Global Change Biology
, 27(23), 6005-6024.
Ghiggi G., Humphrey V., Seneviratne S. I., Gudmundsson L. (2021), G‐RUN ENSEMBLE: A Multi‐Forcing Observation‐Based Global Runoff Reanalysis, in Water Resources Research
, 57(5), e2020WR028.
There are large uncertainties in our understanding of the terrestrial carbon cycle which currently limit our ability to monitor and predict sources and sinks of carbon dioxyde at regional to global scales. Although interactions between the water and the carbon cycles play an important role in regulating carbon uptake by the biosphere, they are still very poorly represented in current Earth system models, partly due to the lack of observational constraints.The overarching goal of this research project is to make use of recent and innovative satellite observations in order to improve our understanding and model representation of the interactions between plant carbon uptake and moisture limitation (through e.g. the sensitivity of photosynthesis to present and future droughts). The proposed research activities will focus on the use and development of water-carbon coupling diagnostics, as a response to the challenge posed by the lack of direct comparability between satellite observations and Earth system model outputs.