[Dhsvm-users] Re:Dhsvm-users Digest, Vol 77, Issue 3

[caiyangcong]

Thanks a lot. Now I use the workstation in arcgis to fill my dem. I will try the new version of FILL_SINKS_DHSVM.c.
At 2011-10-05 03:02:04,dhsvm-users-request at mailman2.u.washington.edu wrote:

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>   1. RE: problem about the program FILL_SINKS_DHSVM.c

>      (Bowling, Laura C)

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>----------------------------------------------------------------------

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>Message: 1

>Date: Tue, 4 Oct 2011 14:24:20 -0400

>From: "Bowling, Laura C" <bowling at purdue.edu>

>Subject: RE: [Dhsvm-users] problem about the program

>	FILL_SINKS_DHSVM.c

>To: Ed Salminen <salminen at watershednet.com>,

>	"dhsvm-users at u.washington.edu"	<dhsvm-users at u.washington.edu>

>Message-ID:

>	<18AD986E445FE847B2A80B53E65704EDAFFD3F2CD5 at VPEXCH02.purdue.lcl>

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>I writing against my better judgement...I am the one guilty of writing this sub-standard program in the first place; it was never particularly elegant and can be easily tripped up (but of course it did work for me :)).  At one point I tried to fix it and I don't know what version was posted on-line, you can see if the attached version is any different from what you have.

>

>As Ed said, I created it because in some very specific, small-scale applications I was finding surface water that would not drain properly because DHSVM was using 4 point routing.  These sinks were not recognized by Arc/Info, since they did have outlets when all 8 nearest neighbors were used.  Certainly using the ArcGIS routines as a starting point is your best bet.  I also think Chris's suggestion of using a courser resolution or using a low-pass filter to smooth a noisy DEM could be a reasonable work around.

>

>Best of luck!

>

>Laura Bowling

>

>

>From: dhsvm-users-bounces at mailman2.u.washington.edu [mailto:dhsvm-users-bounces at mailman2.u.washington.edu] On Behalf Of Ed Salminen

>Sent: Tuesday, October 04, 2011 11:49 AM

>To: dhsvm-users at u.washington.edu

>Subject: Re: [Dhsvm-users] problem about the program FILL_SINKS_DHSVM.c

>

>I have never gotten this program to work for me, has anyone been successful in running it?  Are there any alternatives?  I appear to have areas in my DHSVM models where flow is collecting on the surface, and surface storage is building over time.  I assume that this is due to the DEM not being correctly filled

>

>On 10/3/2011 2:24 AM, caiyangcong wrote:

>When reading the FAQ page (http://www.hydro.washington.edu/Lettenmaier/Models/DHSVM/faqs.shtml), I found a program - FILL_SINKS_DHSVM.c. The administor had provided some details about the file of FILL_SINKS_DHSVM.c. It fill sinks in a manner similar to the ArcInfo algorithm, but using only the 4 nearest neighbors. So I tried to use this program to fill my DEM. Running the FILL_SINKS_DHSVM.c. after 4 hours, the screen was just  displaying some words:Search radius can't identify if sink or peak. It has taken two days to fill the DEM using the  FILL_SINKS_DHSVM.c, but still had no result. Can anyone help me?

>

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