Applications of the ‘expolinear’ equation for crop growth described by Goudriaan and Monteith [Goudriaan, J., Monteith, J.L., 1990. Ann. Bot. 66, 695–701] are restricted by the assumption that absolute and specific growth rates are both constant in time. To overcome this constraint, a second-order differential equation is derived that may either be integrated to yield the expolinear equation or...

abstract in recent years, automatic weather stations have been widely used for recording meteorological data in different time scales. therefore the accurate estimation of eto by combination equations can be evaluated using these set of short time scales data. daily eto can also be calculated by summation of hourly eto values. the purpose of this study is to compare the eto values estimated by ...

Remote sensing can assist in improving the estimation of the geographical distribution of evapotranspiration, and consequently water demand in large cultivated areas for irrigation purposes and sustainable water resources management. In the direction of these objectives, the daily actual evapotranspiration was calculated in this study during the summer season of 2001 over the Thessaly plain in ...

Estimated daily reference crop evapotranspiration (ETo) is normally used to determine the water requirement of crops using the crop factor method. Many ETo estimation methods have been developed for different types of climatic data, and the accuracy of these methods varies with climatic conditions. In this study, pair−wise comparisons were made between daily ETo estimated from eight different E...

Jasmohan S. Bajaj, Phillip B. Hylemon, Jason M. Ridlon, Douglas M. Heuman, Kalyani Daita, Melanie B. White, Pamela Monteith, Nicole A. Noble, Masoumeh Sikaroodi, and Patrick M. Gillevet Division of Gastroenterology, Hepatology and Nutrition; Department of Microbiology, Virginia Commonwealth University and McGuire Veterans Affairs Medical Center, Richmond, Virginia; and Microbiome Analysis Cente...

It is often necessary to find a simpler method in different climatic regions to calculate reference crop evapotranspiration (ETo) since the application of the FAO-56 Penman-Monteith method is often restricted due to the unavailability of a comprehensive weather dataset. Seven ETo methods, namely the standard FAO-56 Penman-Monteith, the FAO-24 Radiation, FAO-24 Blaney Criddle, 1985 Hargreaves, P...

In this study latent heat flux (λE) measurements made at 65 boreal and arctic eddy-covariance (EC) sites were analyses by using the Penman-Monteith equation. Sites were stratified into nine different ecosystem types: harvested and burnt forest areas, pine forests, spruce or fir forests, Douglas-fir forests, broadleaf deciduous forests, larch forests, wetlands, tundra and natural grasslands. The...