Stress on TRanspiration

Sensed from Satellite

Systems

 

The STR3S project has shed light on the link between satellite SIF retrievals and transpiration. The work of the team resulted in several articles exploring ecosystem-to-global scales, and including empirical and mechanistic approaches. We thank BELSPO for the support and hope to continue this line of work. For further questions: Diego.Miralles@ugent.be.

New evidence shows the value of SIF to estimate global transpiration. If combined with temperature, SIF retrievals can be used to monitor transpiration over large scales. Article just published.

Led by François Jonard, this paper discusses the nature of the plant physiological basis of the fluorescence signal and analyses the current literature linking hydrological states and fluxes to SIF.

A new article in Remote Sensing, led by Brianna R. Pagán, indicates the empirical relation between SIF/PAR and transpiration efficiency, and compares satellite retrievals to in situ data and Land Surface Model estimates.

New article published in Hydrology and Earth System Science and led by Wouter H. Maes demonstrates a better performance of simple radiation-based formulations to estimate potential evaporation at FLUXNET sites.

We present recent progress on the use of satellite-based solar induced fluorescence to diagnose water fluxes from ecosystem to global scales at the Transpiration workshop in MPI Jena.

Brianna Pagán is the new awardee of a Horton Research Grant, aiming to promote excellence in hydrology research. In her research she aims to utilise satellite sun-induced fluorescence observations to improve global transpiration retrievals.

One year after the first one, the second steering committee meeting of STR3S takes place at Ghent University. Once again, world-renowned experts and BELSPO representatives will evaluate the project's progress.

In this new article in Agricultural and Forest Meteorology – led by Xiaoliang Lu from the Ecosystems Center (MA, USA) – we show evidence of the potential of sun-induced fluorescence as a diagnostic of ecosystem transpiration.

The article led by Wouter Maes on potential transpiration based on eddy-covariance tower measurements is available at HESSD. This is a first step towards our validation of evaporative stress based on satellite SIF data.

Brianna Pagán successfully presented the results of the STR3S project at the AGU Fall Meeting 2017. The talk was entitled 'Integration of satellite-induced fluorescence and vegetation optical depth to improve the retrieval of land evaporation’.

Today, Diego Miralles gave an invited presentation at the Luxembourg Institute of Science and Technology. During his talk he presented the first results of STR3S, together with an overview of future challenges in hydrology and remote sensing.

Brianna Pagán presented and published in the First International Electronic Conference on the Hydrological Cycle (CHyCle), her work 'Satellite observed solar induced fluorescence to monitor global plant stress’. Article available here.

Brianna Pagán and Diego Miralles presented the results from the STR3S project at the 5th iLEAPS Science Conference: 'Satellite observations of SIF to monitor global transpiration' and 'Sensitivity of global ecosystems to climate anomalies in observations and models’.

After the first few months of work, the first steering committee meeting of STR3S takes place at the Ghent Marriott on 17/02/2017. World-renowned experts and BELSPO representatives will evaluate the project's progress.

Dr. Wouter Maes presents the first results of the STR3S project in Frascati (Italy), during the ESA workshop 'Remote sensing of fluorescence, photosynthesis and vegetation status'. Information about the workshop and Wouter’s presentation: www.flex2017.org.

A kick-off meeting will take place on April 11th. A symposium on ‘Remote sensing of vegetation and hydrology' has been organised for the occasion at Ghent University, with speakers from several institutions. For more information contact Diego Miralles at Diego.Miralles@ugent.be.