UC Santa Barbara · Department of Geography

Photon Informed Ecology Lab

We combine remote sensing and data science to understand terrestrial ecosystems in a changing climate — linking optical signals to the physical and biological processes that drive them, from leaf to globe.

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What we study

Our research is multi-scale in nature and mechanistically links remote sensing observations with biological processes — with a particular emphasis on quantifying carbon and water fluxes.

Remote sensing of photosynthesis

Detecting changes in photosynthesis when changes in structure are decoupled from changes in function.

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Evapotranspiration & water use efficiency

Building and interpreting ET and WUE products to support conservation, fire risk assessment, and water management.

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Proximal remote sensing

Bridging the gap between leaf and plant-scale observations, flux towers, and air- and spaceborne remote sensing.

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Latest from the lab

HyTES-derived lithological and mineral-alteration maps of a geothermal area in Tuscany compared with the regional geological map
September 10, 2026

New Paper: Mapping Lithology and Mineral Alteration with Thermal Infrared Spectroscopy

A new paper co-authored by Dr. Pierrat in the International Journal of Applied Earth Observation and Geoinformation uses thermal infrared spectroscopy to map rock types and hydrothermal alteration in geothermally active areas.

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Three-panel figure showing deforestation trends around the Vale do Javari Indigenous Land
August 21, 2026

New Paper: Spiralling Frontier Threats in Indigenous Amazonia

A new paper co-authored by Dr. Pierrat in Nature Sustainability documents accelerating socio-environmental threats closing in on Indigenous Lands in the Brazilian Amazon.

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Tree-ring site maps and seasonal GPP fraction plots for oak species showing decoupled photosynthesis and growth
August 21, 2026

New Paper: Decoupled Carbon Assimilation and Growth in Oaks

A new paper co-authored by Dr. Pierrat in Science Advances shows oak photosynthesis and wood growth are decoupled across the season, with implications for forest carbon models.

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Join the lab

We recruit graduate students and postdoctoral scholars through the UCSB Geography Department, and welcome new collaborations with researchers, agencies, and non-profits working on ecosystem remote sensing.

See current opportunities