Precipitation is a common climatic variable used in many GIS modeling processes

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How to calculate runoff in Rainfall Analysis?

I have 30 years daily rainfall data. How can i calculate the mean monthly runoff, minimum monthly runoff and maximum monthly runoff with the available rainfall data using GIS? I would like to use ...
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creating precipitation grid

I am trying to create a precipitation grid for my meteorologic model. The problem is that, I do not know what are the things I should have for me to create the grid. Can anyone tell me what are the ...
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Open-source tools for run-off depth calculation

I am working on modeling surface run-off (in ArcGIS 10.2) due to a rain event (e.g., 5 year rain for a duration of 30 mins.) over an approx. area of 30 km2 for which I have a DEM and necessary soil as ...
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57 views

Calculate amount of rainfall per grid

I have precipitation measurement data of some points. I calculate the spatial distribution of rainfall using thiessen polygon method with ArcGIS. This shows amount of total rainfall on polygons. How ...
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96 views

Determining average rainfall for cumulative watershed, where only sub-watersheds defined?

I have a polygon layer with sub-catchments (sub-watersheds) and a grid of rainfall. I have used the Zonal Stats as a table to calculate the average rainfall for each sub-catchment, but I now need to ...
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615 views

SCS curve numbers for rainfall-runoff model using ArcHydro

I'm trying to assign curve numbers to one of my subbasins using ArcHydro (subbasin parameter from raster) following a tutorial as you can see here: when I turn to the step after generating my own ...
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Interpolation using GDAL

I am looking for some hints here. There is a shape file with point data of rainfall sampled at a regular grid, and there is a shape file with point data of soil attributes sampled at a regular grip ...
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71 views

Depth of run-off water

I am working on modeling surface run-off due to a rain event (e.g., 5 year rain for a duration of 30 mins.) over an approx. area of 30 km2 for which I have a DEM and necessary soil as well as ...