1
vote
1answer
129 views

Determining Pixel-by-pixel Catchments in ArcHydro

I used ArcHYDRO to prepare HydroDEM (5m) without sinks, Flow direction (FDR) raster, flow accumulation raster (FAC). As I understand FAC, value of pixel shows number of pixels that contribute to this ...
3
votes
1answer
632 views

How to know if flow accumulation map reflects true catchment areas?

I have calculated flow accumulation (img file) using this DEM (img file), which is 0.5 degree resolution, using arcmap. I am wondering if the cell accumulation value can directly be translated into ...
1
vote
0answers
26 views

Can I burn stream network into DEM using DEM layer only? [duplicate]

Possible Duplicate: How to ‘burn’ a stream network into a DEM layer in ArcGIS 10? I am doing hydrology modelling and I want to calculate the run-off. In order to do that,the model which I ...
3
votes
2answers
888 views

Determine direction of rivers, which villages lie upstream and which downstream

I want to determine which villages lie upstream and which villages lie downstream big cities built on the side of rivers in Indonesia. I have the .shp file of villages and cities, the .shp file of all ...
0
votes
1answer
1k views

How to find Q in m3/sec from a raster having Q in mm for hydro power calculation

I am having a raster file with runoff depth Q in mm which was obtained from SCS method. I want to calculate hydro power potential at any location on my DEM. In the formula Q is in m3/s but we are ...