نتایج جستجو برای: modified penman
تعداد نتایج: 251477 فیلتر نتایج به سال:
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...
Given the widespread ecological implications that would accompany any significant change in evaporative demand of the atmosphere, this study investigated spatial and temporal variation in several accepted expressions of potential evaporation (PE). The study focussed on forest regions of North America, with 1 km-resolution spatial coverage and a monthly time step, from 1951–2014. We considered P...
A simplified equation to estimate spatial reference evapotranspiration (ETo_Ts) from remote sensing-based surface temperature (Ts) and local standard meteorological data is suggested. It is based on a parameterization of the meteorological conditions of the first few meters of the atmosphere through two parameters (a and b) which come from a simpler form of the Penman–Monteith equation:
* Supported by USPHS grants Al 04153 and CA OF861 and N-SF grant 6B24FF. t NIH special postdoctoral fellow. + USPHS Career Development Awardee. lPenman, S., K. Scherrer, Y. Becker, and J. E. Darnell, these PROCEEDINGS, 49, 654 (196:3). 2 Penman, S., Y. Becker, and J. E. Darnell, J. Mlol. Biol., 8, 541 (1964). 3 Crick, F. H. C., Progr. Nucleic Acid Res., 1, 164 (1963). 4 Schaffer, F. L., in Cold...
Though most text generators are capable of simply stringing together more than one sentence, they cannot determine which order will ensure a coherent paragraph. A paragraph is coherent when the information in successive sentences follows some pattern of inference or of knowledge with which the hearer is familiar. To signal such inferences, speakers usually use relations that llnk successive sen...
This research focuses on predicting the streamflow of Anai-weir catchment using SWAT (Soil and Water Assessment Tools) Mock models. The studied is approximately 34,024 ha wide. rainfall climatological data were collected from three nearest stations, namely Kandang IV (13.8 km far), Kasang (15.2 Sicincin Stations (11.2 2010 to 2019. first methodology delineate catchment, form a Hydrologic Respon...
کمبود آب یکی از ویژگی های بارز مناطق خشک است. ایران مرکزی یک منطقه کم آب است که در آن اطلاع دقیق از منابع آب، میزان مصرف آن برای مدیران بسیار حائز اهمیت است. منطقه مورد مطالعه در این تحقیق شامل محدوده شهرهای یزد، اشکذر و مناطق اطراف آن می باشد و مساحت آن 726 کیلومتر مربع است. مختصات جغرافیایی این منطقه شامل طول شرقی 64/54 تا 09/54 درجه و عرض شمالی 06/32 تا 73/31 درجه است. خشکی بیش از حد این منط...
In addition, the project has entered into two collaborations that show great promise. The KOMET project at the IPSI Insti tute in West Germany (funded by the German Federal Government) is a new project with goals very similar to our own. In addition to funding some of our work, they are building a systemic grammar of German and are collaborating on our parsing research. The Department of Lingui...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید