Author Archives: pragwater

About pragwater

Eric Harmsen is a professor at the University of Puerto Rico-Mayaguez Campus, Dept. of Agricultural and Biosystems Engineering. He teaches courses in agricultural hydrology, agroclimatology and irrigation. His research interests include: Measurement and modeling all components of the hydrologic cycle, remote sensing of water and energy balance in the Tropics, and agroclimatology.

Climate Change 101 for Corrupt Politicians


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Downscaled Climate Data Projections for Puerto Rico Now Available


The Caribbean Landscape Conservation Cooperative (CLCC) has just announced the release of downscaled climate data projections (through 2099) for Puerto Rico.  This is a valuable resource, which will allow scientists from many fields to evaluate climate change impacts in their respective … Continue reading

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PRAGWATER now providing daily reference evapotranspiration for St. John, USVI


Daily reference evapotranspiration (ETo) is now available for St. John (USVI) at the following link: Northern Caribbean ETo .  The link also includes ETo data for St. Thomas, St. Croix, Puerto Rico, Hispaniola and Jamaica. Yesterday’s Reference Evapotranspiration (ETo) for St. … Continue reading

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Challenges of doing research on the UPRM Campus


Recently I initiated a calibration study of two Campbell Scientific weather stations on the University of Puerto Rico-Mayaguez Campus. Calibration of the two stations equipped with older sensors, is being accomplished with a third station with new sensors. Two weeks … Continue reading

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Interviews with Real People Impacted by Climate Change


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¿Cómo llega el arroz puertorriqueño a las bandejas de los comedor…


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Largest glacier break-off ever filmed


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Climate Change 2013: A short overview of where we are at.


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PRAGWATER now providing daily reference evapotranspiration for St. Thomas, USVI


Daily reference evapotranspiration (ETo) is now available for St. Thomas (USVI) at the following link: Northern Caribbean ETo.  The link also includes ETo data for Puerto Rico, St. Croix (USVI), Hispaniola and Jamaica. Yesterday’s Reference Evapotranspiration St. Thomas, USVI The following links … Continue reading

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New Micro Irrigation Book


Sustainable Micro Irrigation Design Systems for Field Crops: Practices and Theory Megh R. Goyal, Mohammad N. Elnesr, Editors http://www.crcpress.com/product/isbn/9781771880992 “I congratulate the editors on the publication of this book on micro irrigation design. Water for food production is clearly one … Continue reading

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