Daily Photosynthetically Active Radiation (PAR) now available for Puerto Rico

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Daily photosynthetically active radiation (PAR) is now available for Puerto Rico. PAR is estimated from net radiation using a regression equation developed in Florida (pre-fire equation, Sumner, 2001). Click here to access images and data
PAR
Relation between daily values of measured net radiation and photosynthetically active radiation (from Sumner, 2001).

Other daily hydro-climate variables for Puerto Rico

REFERENCE
Sumner, D. M., 2001. Evapotranspiration from a cypress and pine forest subjected to natural fires in Volusia County, Florida, 1998-99. U. S. Geological Survey Water-Resources Investigations Report 01-4245. Washington, D.C.: U.S. Geological Survey.

Teens Create A Way To Use Urine As Fuel

Four African girls have created a generator that produces Electricity for six hours using a single liter of urine as fuel.

Click here to read Forbes article

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NASA Beautifully Observes Photosynthesis From Space (VIDEO)

NASA Beautifully Observes Photosynthesis From Space (VIDEO)

click here

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Course offerings this semester at UPRM: Farm Irrigation and Agroclimatology (TMAG)

I will be offering the following two courses this semester at UPR-Mayaguez. Please click the following links for the course fliers.

TMAG 5017 Agroclimatology

TMAG 4019 Farm Drainage and Irrigation Systems

Please feel free to contact me if you would like additional information about either course.

Eric Harmsen, Professor
University of Puerto Rico
Dept. of Agricultural and Biosystems Engineering
Mayaguez, Puerto Rico 00681
email: harmsen1000@hotmail.com, eric.harmsen@upr.edu
phone: 787-955-5102
websites: http://pragwater.com , http://bahai.org

irrigation

Smart Irrigation

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Teen’s tech promises 20-sec phone charge

Teen’s tech promises 20-sec phone charge

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New Book: Evapotranspiration Principles and Applications for Water Management

I am happy to announce that our new book will be released soon.
PDF Announcement
Web Announcement
Evapotranspiration Cover

Clinton Foundation

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NY to LA for Free: Tesla Plans Dramatic Expansion of Charger Network

NY to LA for Free: Tesla Plans Dramatic Expansion of Charger Networktesla-supercharger-cap-660

Comienza hoy el juicio por la ‘Ley Tito Kayak’ – En 2011 arrestaron a seis por objetar los aerogeneradores

Comienza hoy el juicio por la ‘Ley Tito Kayak’

En 2011 arrestaron a seis por objetar los aerogeneradores

Frente de Rescate Agricola