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Who we are

With research staff from more than 60 countries, and offices across the globe, IFPRI provides research-based policy solutions to sustainably reduce poverty and end hunger and malnutrition in developing countries.

Liangzhi You

Liangzhi You is a Senior Research Fellow and theme leader in the Foresight and Policy Modeling Unit, based in Washington, DC. His research focuses on climate resilience, spatial data and analytics, agroecosystems, and agricultural science policy. Gridded crop production data of the world (SPAM) and the agricultural technology evaluation model (DREAM) are among his research contributions. 

Where we work

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Where we work

IFPRI currently has more than 600 employees working in over 80 countries with a wide range of local, national, and international partners.

Better Measures of Land Surface Temperatures and Solar-Induced Chlorophyll Fluorescence (SIF) to Improve Monitoring for Drought-Stressed Crops and Crop Productivity

Co-organized by Cornell University and the Food Security Portal of IFPRI

July 20, 2021

  • 10:00 – 11:30 am (America/New_York)
  • 4:00 – 5:30 pm (Europe/Amsterdam)
  • 7:30 – 9:00 pm (Asia/Kolkata)

Weather and climate shocks (such as droughts, floods, and heat waves) can imperil climate-sensitive agricultural systems in food-insecure regions, threatening the livelihoods and nutritional status of vulnerable populations in these areas. Satellite remote sensing offers an inexpensive, timely solution to monitor conditions on the Earth’s surface and has become increasingly used to generate data used in decision-making by private and public actors. In this webinar, we discuss recent advances in two satellite products, land surface temperature (LST) and solar-induced chlorophyll fluorescence (SIF), that can significantly improve monitoring for drought-stressed crops and crop productivity. The spatial and temporal variation traceable through LST is critical for identifying the governing land-atmosphere interactions that affect crop growth. Similarly, SIF presents an optical signal of plants’ photosynthetic machinery, thus providing direct functional information about photosynthesis. The recent advent of satellite SIF remote sensing holds great promise for near-real-time crop growth monitoring.

This webinar is the first of a two-part webinar to present new data and findings from ongoing research under the United States Agency for International Development (USAID)-funded project “Harnessing Big Data and Machine Learning to Feed the Future”, based at Cornell University. Researchers and analysts from operational agencies are invited to join these events for a presentation and discussion of key principles, data sources, methods, and applications.