从多个水库灌溉在斯瓦特+ -地球科学堆栈交换江南电子竞技平台江南体育网页版 最近30从www.hoelymoley.com 2023 - 07 - 10 - t12:36:05z //www.hoelymoley.com/feeds/question/24298 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/24298 2 从多个水库灌溉在斯瓦特+ 日本米酒 //www.hoelymoley.com/users/27593 2022 - 09 - 08 - t14:03:42z 2022 - 10 - 04 - t18:05:52z < p >我在斯瓦特+应用与多个水库用于灌溉面积。我也有很多HRUs代表流域不同作物类型。问题是,斯瓦特+分配一个水库灌溉特定HRU <强> < / >强类型。然而,现实情况是,我有相同类型HRUs(遍布排水)从不同的水库灌溉。我需要每个HRU分配正确的水库。< / p > < p >我试图手动创建一个管理计划为每个HRU但这是乏味的如果一个人有数百HRUs从不同的水库灌溉。谁能协助一个更快的方法来做呢? < / p > //www.hoelymoley.com/questions/24298/-/24394 # 24394 1 答案由JG_enviro从多个水库灌溉在斯瓦特+ JG_enviro //www.hoelymoley.com/users/27371 2022 - 10 - 04 - t18:05:52z 2022 - 10 - 04 - t18:05:52z < p > 100%不清楚的问题。我假设这个问题的部分原因是,你有很多相同的区域土地覆盖类型在同一subcatchment,但不同地区的植被类型需要不同的水库灌溉。< / p > < p >如果这是问题,一种方法可以建立模型与不同土地覆盖类型编码的不同区域不同水库灌溉。For example, if your initial land cover map has areas mapped as wheat fields, but you know which fields are specifically irrigated from three different reservoirs, you could make a land cover map that has wheat01, wheat02, and wheat03 as different "cover classes", despite them all actually being wheat. This will mean they will be different HRU types in your model set up.

To bring this into SWAT+: each of these areas would need a different grid code number in the land cover input raster, you would need to make a differently named entry for each one in the 'plant' parameter table, and then your land cover lookup table would need to link each to these different entries in the plant parameter table. In this example, if its all wheat, and you are happy with the default wheat parameters in SWAT+, you can just copy the wheat parameter row and paste it three times at the end of the table and give these new names and codes like wheat01, wheat02, wheat03.

A hitch in this approach could come in automated calibration, if you are doing that. In this process, each wheat cover "subtype" (wheat01, wheat02, wheat03 for the areas irrigated by reservoirs 1,2,&3) would be treated as if it was an independent cover type. This means their parameter values may be changed in different ways to one another in calibration, whereas you probably want their vegetation parameters to be consistent across the three as they are all wheat... This may take some manual calibration intervention to resolve - i.e. setting the wheat01,wheat02,wheat03 parameters to be the same in the end.

Also if you have many many reservoirs, there is still work to be done on linking each HRU to the right reservoir. Doing this in the text files rather than the SWAT+ Editor interface would likely faster and you could automate the process using an R or Python code. If you modify the text files outside of the Editor interface you cannot "write tables" in the Editor before running the model (if you run it from the Editor) because this will actually undo the changes you've made.

Baidu
map