Topic: Cloud-gap-filled global maps of essential biophysical variables processed from the TOA Sentinel-3 catalogue in Google Earth Engine

When: December 13th, 2023: 15:30 – 16:30 CET (16:30-17:30 EET)

Presenter: David Kovacs- (University of Valencia)

I am David Kovacs from Hungary. I have done my bachelors in the UK at the University of Southampton in Aerospace Engineering. Because I love satellites and everything geo-astrophysics, I wanted to specialize in this field therefore I came to Valencia to do my Masters in Remote Sensing. I have joined the research groups of Jochem Verrelst, where I conduct research with him amongst many others with Katja Berger as well. I am currently working with Sentinel-3 OLCI data thus I will be presenting our global biophysical products at the Sentinel-3 Validation Meeting. 


We explored Sentinel-3 (S3) top-of-atmosphere OLCI data with hybrid retrieval models produced with ARTMO to inter four essential key variables: LCC, LAI, FAPAR, FVC. Models were trained based on SCOPE-6SV and Gaussian Process Regression algorithms were used to retrieve global vegetation maps for the year 2019. Results were correlated against MODIS LAI/FPAR products over different land covers. Uncertainty and correlation maps were created as well and will be discussed during the seminar. 



Topic: Applications of thermal infrared imagery in the study of Earth’s ecosystems

When: March 15th, 2023: 10:00 – 11:00 AM

Presenter: Dr. Kerry Cawse-Nicholson

Dr. Kerry Cawse-Nicholson is a scientist at the NASA Jet Propulsion Laboratory. She serves as the assistant Section Manager for Earth Science at JPL, the ECOSTRESS science lead, and the co-lead of the SBG algorithms working group. Her research interests include the study of biodiversity, wildfires, and drought, as well as uncertainty quantification and the mathematical optimization of spectroscopic mission design.


ECOSTRESS is a thermal radiometer mounted on the International Space Station and designed to study plant response to heat and water stress. With 5 thermal infrared channels, it also serves as a pathfinder for future thermal missions such as the Surface Biology and Geology (SBG) thermal instrument. Here we show several examples of ECOSTRESS science and applications, ranging from the original goal of studying plant water stress, to other enabled applications such as urban heat, volcanic eruptions, and wildfire studies. We also discuss how this work has led to the design of the upcoming SBG mission.

Click here to join: https://umbc.webex.com/meet/PetyaUMBC