介绍LARS-WG天气发生器

hillside

　　LARS-WG與WGEN是两种主流的天气发生器。如一篇台湾论文《應用LARS-WG與WGEN衍生未來氣候變遷情境
日資料之氣象因子對於嘉南平原稻作風險評估》称，本研究利用兩種常用之天氣衍生器(Weather Generator)：LARS-WG與WGEN，衍生未來日資料時間序列，並使用TCCIP提供1980年至1999年之全台灣統計降尺度5公里解析度網格基期資料與近未來(2020~2039)、遠未來(2080~2099)之統計降尺度三種情境下各GCM模式月資料，衍生A1B、A2、B1氣候變遷情境下所有GCM模式之未來日資料時間序列。本研究依兩種模式衍生資料評估台灣嘉南平原地區之溫度與降雨變化對於未來農糧衝擊，提出統計評估方式與相關建議，以做為台灣地區面臨極端氣候衝擊時的農損風險分析。

　　不知什么原因，LARS-WG的下载主页已无法打开。现提供相关页面信息如下：
http://www.ccva.ac.cn:81/Downscaling_Tools/LARS-e.html
                                                                              China Climate Change Scenarios
中文GETTING STARTED WITH LARS-WG
LARS-WG is a stochastic weather generator developed by Dr. Mikhail Semenov of Rothamsted Research, UK. A stochastic weather generator is a statistical model which is able to simulate daily weather data based on the observed statistical characteristics of weather at a single site. This type of statistical model can:

• generate long time series of weather data (typically precipitation, maximum and minimum temperature and solar radiation) suitable for the assessment of agricultural and hydrological risk;
• provide a means for simulating weather data at locations where no observations have been made, or where the observational record is very short; and
• serve as a computationally-inexpensive tool which can produce high temporal resolution climate change scenario data. This particular model is able to incorporate changes in climate variability as well as changes in mean climate.
  

Where can I get LARS-WG?You can download the software and user manual for free from:
www.rothamsted.bbsrc.ac.uk/mas-models/larswg.php
How do I use LARS-WG?

• Download the software from the LARS-WG web site into a directory of your choice on your computer. To install the software, simply double-click on the UpdateLARSWG.exe file in this directory and follow the instructions in the installation wizard.
  
  
• To start LARS-WG 4.0 for the first time, go to the c:\Program Files\LARSWG directory (or to the appropriate directory if you installed it somewhere else). Here you will find a butterfly icon which you can move to a more convenient location (e.g. the START menu, or to the Desktop) for easier access to the program if you so wish. Double-click on this icon to start LARS-WG 4.0. The following window should appear:
  

http://rss.acs.unt.edu/Rdoc/library/seas/html/lars.html
Read and write data from LARS-WG file formats

topmad

天气发生器  做模型的同学基本都用得到

kongfeng0824

气候模式用到

pengF_T

你好，看过上面的介绍还有些问题请教！  
第一  天气发生器是在在什么软硬件背景下应用的！  操作系统的类型
第二  该软件的安装过程
第三  有什么具体的应用

谢谢楼主

hillside

pengF_T 发表于 2013-12-16 09:59

                               
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你好，看过上面的介绍还有些问题请教！  
第一  天气发生器是在在什么软硬件背景下应用的！  操作系统的类 ...

我没有直接用过，只是介绍。
相信其他有知的网友会给你一些答复。
天气发生器的安装我估计并不复杂，最低配置即可，应当只是一个比较简单的执行程序。你可下载一个看看。
一般说来，水文模拟常用WINDOWS系统，气候模拟多用linux系统，往往需要比较高的计算机配置。

卢姁luxu

多谢，收了

onion5376

好资料，谢谢楼主

余辉

好资料，谢谢楼主

meredithxf

谢谢楼主，收了学习

aixian1988

啥是天气发生器啊