Evapotranspiration

Megh R. Goyal, PhD, PE, was born in India. He received his BSc degree in agricultural engineering in 1971 from Punjab Agricultural University, Ludhiana - India; his MSc degree in 1977 and PhD degree in 1979 from the Ohio State University, Columbus; and his master of divinity degree in 2001 from Puerto Rico Evangelical Seminary, Hato Rey, Puerto Rico. Since 1971, he has worked as Soil Conservation Inspector and Research Assistant at Haryana Agricultural University and the Ohio State University; as well as Research Agricultural Engineer at Agricultural Experiment Station of the University of Puerto Rico-Mayaguez Campus (UPRM). At present, he is a retired professor of agricultural and biomedical engineering in the College of Engineering at University of Puerto Rico _ Mayaguez Campus; and Senior Acquisitions Editor for Agriculture and Biomedical Engineering for Apple Academic Press Inc. He was the first agricultural engineer to receive the professional license in agricultural engineering in 1986 from the College of Engineers & Surveyors of Puerto Rico. On September 16, 2005, he was proclaimed as "Father of Irrigation Engineering in Puerto Rico for the 20th Centuryî"by the ASABE _ Puerto Rico Section, for his pioneering work on micro irrigation, evapotranspiration, agroclimatology, and soil and water engineering. During his professional career of 42 years, he has received awards such as Scientist of the Year, Blue Ribbon Extension Award, Research Paper Award, Nolan Mitchell Young Extension Worker Award, Agricultural Engineer of the Year, Citations by Mayors of Juana Diaz and Ponce, Membership Grand Prize for ASAE Campaign, Felix Castro Rodriguez Academic Excellence, RashtryaRatan Award and Bharat Excellence Award and Gold Medal, Domingo Marrero Navarro Prize, Adopted son of Moca, Irrigation Protagonist of UPRM, Man of Drip Irrigation by Mayor of Municipalities of Mayaguez/ Caguas/ Ponce and Senate/ Secretary of Agriculture of ELA _ Puerto Rico. He has authored more than 200 journal articles and textbooks, including Biofluid Dynamics of Human Body Systems and Management of Drip/Trickle or Micro Irrigation by Apple Academic Press Inc. Dr. Eric W. Harmsen received his BSc and MSc degrees in agricultural engineering from Michigan State University and PhD degree from the University of Wisconsin. He holds a professional engineer license. Currently he is currently a professor in the Department of Agricultural and Biosystems Engineering, University of Puerto Rico-Mayaguez Campus. He teaches courses in agricultural hydrology, agroclimatology and irrigation. He was previously Associate Research Editor of the Journal of Soil and Water Conservation (2001-2005) as well as a reviewer for many professional journals. He is a member of the American Society of Agricultural and Biological Engineers (U.S. and Puerto Rico Chapters), the Caribbean Food Crop Society, the Puerto Rico Society of Agricultural Scientists, and Gamma Sigma Delta (Agricultural Honor Society). His research interests include measurement and modeling of all components of the hydrologic cycle; remote sensing of water and energy balance in the tropics; and agroclimatology. Some of Dr. Harmsen's water management related publications and presentation can be found at the following link: http://pragwater.com/selected-publications-and-presentations/

Principles: Historical Evolution of Evapotranspiration Methods. Water Vapor Flux Models for Agriculture. Direct Measurement of Transpiration. Design of Lysimeter for Turfgrass Water Use. Evapotranspiration: Meteorological. Evaporation Estimations with Neural Networks. Pan Evaporation Modeling: Indian Agriculture
Evaporation for Cypress and Pine Forests: Florida, USA.
Applications: Evapotranspiration for Pinelands: New Jersey, USA. Water Management in Citrus. Vegetation Water Demand and Basin Water Availability in Mexico. Turfgrass Deficit Irrigation Practices for Water. Evapotranspiration for Saudi Arabia: Modified Hargreaves Model. ET with Distant Weather Stations: Saudi Arabia. Actual Evapotranspiration using LANDSAT 5 TM in Thailand. Sensor Based Irrigation Scheduling. Snow Budgeting and Water.
Water Management in the Tropics: Historical Overview of Evapotranspiration in Puerto Rico. Reference Evapotranspiration for Colombia. Water Management for Agronomic Crops in Trinidad. Crop Water Stress Index for Common Beans. Temperature versus Elevation Relationships: Evapotranspiration. Generation of Missing Climatic Data: Puerto Rico. Estimation of Pan Evaporation Coefficients. Daily Evapotranspiration Estimations using Satellite Remote Sensing. Vapor Flux Measurement System. Climate Change Impacts on Agricultural Water Resources: 2090. Evapotranspiration using Satellite Remote Sensing for the Tropical Climate. Water Management in Sweet Peppers. Web Based Irrigation Scheduling. Calibration of Pyranometers and Satellite-Derived Solar Radiation.