mheberger
commented
10 months ago Two thoughts on this:
(1) You can use my web app at https://mghydro.com/watersheds. I added the MERIT-Basins "coastal catchments" layer to the dataset used by the app.
(2) BUT! These are very small watersheds in urbanized areas. You may not get good results using MERIT-Hydro data, which are fairly coarse resolution (3 arcsecond). This data is meant more for use in large-scale hydrology, not local applications.
Your choices are to do a manual delineation with topo maps (if you only have 3 points, should be fairly quick), or use higher-resolution elevation data, e.g. I found this via a quick Google search: https://open.canada.ca/data/en/dataset/957782bf-847c-4644-a757-e383c0057995
There's a decent list of software for this on Wikipedia: https://en.wikipedia.org/wiki/Watershed_delineation#Software_for_watershed_delineation
On Wed, Dec 13, 2023 at 5:28 PM kokubadejo @.***> wrote:
I'm trying to run the delineation on a batch of points, and some of them are outside the merit basins. I tried using the buffered merit basins but I run into a nan error cause it's outside of the catchment basins, so there's no terminal_comid for it. Is there a fix for this? What would you recommend I do so they are delineated?
Some of such points are: {'id': 217697, 'lat': 49.348897, 'lng': -124.428403} {'id': 217808, 'lat': 49.23117, 'lng': -123.97092} {'id': 217714, 'lat': 50.6102, 'lng': -127.2367}
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I'm trying to run the delineation on a batch of points, and some of them are outside the merit basins. I tried using the buffered merit basins but I run into a nan error cause it's outside of the catchment basins, so there's no terminal_comid for it. Is there a fix for this? What would you recommend I do so they are delineated?
Some of such points are: {'id': 217697, 'lat': 49.348897, 'lng': -124.428403} {'id': 217808, 'lat': 49.23117, 'lng': -123.97092} {'id': 217714, 'lat': 50.6102, 'lng': -127.2367}