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【分享】The ETo Calculator 计算蒸散发好软件
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The ETo Calculator，计算蒸散发绝对的优秀！欢迎大家互相探讨! 地址：http://www.rayfile.com/zh-cn/fil ... -b88f-0015c55db73d/ [ Last edited by penghh03 on 2010-9-29 at 11:38 ] |
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3楼2010-10-01 14:13:26
4楼2010-10-01 22:57:08
5楼2010-10-04 10:18:35
谢谢。 6楼2010-10-04 22:12:59
7楼2010-10-06 19:01:04
8楼2010-10-06 19:02:02
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我从网站上复制了一段关于这个软件的介绍，呵呵！有什么问题大家一起来讨论哈，我也是刚刚接触这个软件不久。 ETo Calculator ETo calculator is a software developed by the Land and Water Division of FAO. Its main function is to calculate Reference evapotranspiration (ETo) according to FAO standards. ETo represents the evapotranspiration rate from a reference surface, not short of water. A large uniform grass field is considered worldwide as the reference surface. The reference crop completely covers the soil, is kept short, well watered and is actively growing under optimal agronomic conditions. The ETo calculator assesses ETo from meteorological data by means of the FAO Penman-Monteith equation. This method has been selected by FAO as the reference because it closely approximates grass ETo at the location evaluated, is physically based, and explicitly incorporates both physiological and aerodynamic parameters. The program can handle daily, ten-day and monthly climatic data. The data can be given in a wide variety of units and data specified in commonly used climatic parameters can be processed. When data for some weather variables are missing, procedures are used for estimating missing climatic data from temperature data or from specific climatic conditions according to methodologies outlined in the Irrigation and Drainage Paper No 56.: "Crop Evapotranspiration". Even where the dataset contains only maximum and minimum air temperature, it is still possible to obtain reasonable estimates for ten-day or monthly ETo. By selecting appropriate lower and upper limits for meteorological data, the program applies a quality check when specifying or importing data. Specified and derived climatic data, including ETo, can be exported in text files compatible with AquaCrop or plotted in various ways specified by the user. ETo calculator is meant as a practical tool to help agro-meteorologists, agronomists, and irrigation engineers to carry out standard calculations for ETo, to be later used in crop water use studies. |
9楼2010-10-06 19:03:55
10楼2010-10-06 22:22:22
11楼2015-03-17 21:32:46
12楼2017-12-29 10:10:12
简单回复
yexuqing2楼
2010-09-29 16:07
回复
谢谢分享
