Sensitivity of APSIM/ORYZA model due to estimation errors in solar radiation
نویسندگان
چکیده
منابع مشابه
Sensitivity of APSIM/ORYZA model due to estimation errors in solar radiation
Crop models are ideally suited to quantify existing climatic risks. However, they require historic climate data as input. While daily temperature and rainfall data are often available, the lack of observed solar radiation (Rs) data severely limits sitespecific crop modelling. The objective of this study was to estimate Rs based on air temperature solar radiation models and to quantify the propa...
متن کاملAn estimation of biological hazards due to solar radiation.
A spectrum evaluator based on four different dosimeter materials has been employed to estimate the spectral irradiances of solar radiation for exposed humans. The result is used to calculate the biologically effective irradiance using the erythemal action spectrum and a fish melanoma action spectrum. Measurements are made in winter at a sub-tropical site on the chest and shoulder of subjects du...
متن کاملEstimation excess risk cancer due to natural gamma radiation exposure in outdoor areas for residents of Dargaz city in 2016
Background and Objective: Humans are always exposed to ionizing radiation that could potentially have harmful effects. The aim of this study was to evaluate the background gamma dose rate, the estimated annual effective dose, and the excess cancer risk assessment in Dargaz. Materials and Methods: This study was a cross sectional study which was conducted in January- March and July – September ...
متن کاملSolar Radiation Estimation from Rainfall and Temperature Data in Arid and Semi-arid Climates of Iran
Precipitation and air temperature data, only, are often recorded at meteorological stations, with radiation beingmeasured at very few weather stations, especially in developing countries. Therefore there arises a need for suitablemodels to estimate solar radiation for a completion of data sets. This paper is about an evaluation of eight models foran estimation of daily solar radiation (Q) from ...
متن کاملDetermination of parameter estimation errors due to noise and undermodelling
A simple method for determination of the estimation error of physical parameters due to noise and undermodelling is developed. Two or more data sets with same input is required. Examples indicate that the method gives good results for linear and nonlinear models.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bragantia
سال: 2012
ISSN: 1678-4499,0006-8705
DOI: 10.1590/s0006-87052012000400016