نتایج جستجو برای: four daily ncepncar reanalysis data includes specific humidity

تعداد نتایج: 3860665  

Journal: :آب و خاک 0
وستا افضلی مسعودرضا حسامی کرمانی

introduction: the phenomenon of climate change and its consequences is a familiar topic which is associated with natural disasters such as, flooding, hurricane, drought that cause water crisis and irreparable damages. studying this phenomenon is a serious warning regarding the earth’s weather change for a long period of time. materials and methods: in order to understand and survey the impacts ...

Prediction of daily evaporation is a valuable and determinant tool in sustainable agriculture and hydrological issues, especially in the design and management of water resources systems. Therefore, in this study, the ability of artificial intelligence models of multi-layer perceptron (MLP), support vector regression (SVR), and the hybrid model of support vector regression-firefly optimization a...

Journal: :Current Biology 2016
Anders Enjin Emanuela E. Zaharieva Dominic D. Frank Suzan Mansourian Greg S.B. Suh Marco Gallio Marcus C. Stensmyr

Environmental humidity influences the fitness and geographic distribution of all animals [1]. Insects in particular use humidity cues to navigate the environment, and previous work suggests the existence of specific sensory mechanisms to detect favorable humidity ranges [2-5]. Yet, the molecular and cellular basis of humidity sensing (hygrosensation) remains poorly understood. Here we describe ...

Journal: :فیزیک زمین و فضا 0
سیده سمانه ثابت قدم موسسه ژئوفیزیک مسعود خوش سیما پژوهشکده سامانه های ماهواره، پژوهشگاه فضایی ایران فرهنگ احمدی گیوی گروه فیزیک فضا، موسسه ژئوفیزیک دانشکاه تهران

atmospheric visibility is a key factor in everyday life mainly in aviation, industry and surface traffic. it has been defined as the greatest distance at which an observer can just see a black object viewed against the horizon sky which is known as the visual range. furthermore, light extinction which is mostly due to absorption and scattering effects of aerosols in the atmosphere, can be calcu...

2005
Kyu Rang Kim Robert C. Seem Eun Woo Park John W. Zack Roger D. Magarey

Weather data for disease forecasts are usually derived from automated weather stations (AWS) that may be dispersed across a region in an irregular pattern. We have developed an alternative method to simulate local scale, high-resolution weather and plant disease in a grid pattern. The system incorporates a simplified mesoscale boundary layer model, LAWSS, for estimating local conditions such as...

Journal: :Remote Sensing 2022

High-spatiotemporal resolution soil moisture (SM) plays an essential role in optimized irrigation, agricultural droughts, and hydrometeorological model simulations. However, producing high-spatiotemporal seamless products is challenging due to the inability of optical bands penetrate clouds coarse spatiotemporal microwave reanalysis products. To address these issues, this study proposed a frame...

2017
Elias Nkiaka Jon C. Lovett

This paper investigates the potential of using global reanalysis datasets as input for hydrological modelling in the data-scarce Sudano-Sahel region. To achieve this, we used two global atmospheric reanalyses (Climate Forecasting System Reanalysis and European Center for Medium-Range Weather Forecasts (ECMWF) ERA-Interim) datasets and one global meteorological forcing dataset WATCH Forcing Data...

2013
Tomomi Sano Manabu Akahane Hiroaki Sugiura Yasushi Ohkusa Nobuhiko Okabe Tomoaki Imamura

With increasing Internet coverage, the use of a web-based survey for epidemiological study is a possibility. We performed an investigation in Japan in winter 2008 using the web-based daily questionnaire for health (WDQH). The WDQH is a web-based questionnaire survey formulated to obtain information about the daily physical condition of the general public on a real-time basis, in order to study ...

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