[Dhsvm-users] Negative value of stream bank height

[safeeq]

Aloha DHSVM users

 

I am getting this -9499.0498 value of stream bank height for one of the main
stream arc located in the middle of watershed. Initially I was trying to
create the stream network by giving the source area but no where I came
close to what actual stream is. Then I converted the stream network shape
file which I obtained from state GIS layer resource site and started using
it. After running the AML scripts I was getting too many -1 value in the
stream network file for destination channel id. When I started exploring why
this is happening then I saw that some of the arcs are not connected in the
shape file that I was using to generate stream coverage. After joining the
arc through topology tool in arcgis I was able to fix the -1 problem but
-9499.0498 are still there. Just to clarify that -9499.0498 was only showing
in one arc so I guess this has nothing to do with -1 problem.  

 

Any idea what could be the possible reason?  I saw in the forum some body
was having similar problem in generating road network. I tried using mask
with -9999 and mask with 0 but there is no difference in the output.

 

Thanks in advance 

 

********************************************************

Mohammad Safeeq 

Graduate Student, Sherman Lab. 242 

1910 East West Rd.Honolulu, HI 96822 USA 

Phone: (808) 956 7518(O),941 9178 (R)

Email: safeeq at hawaii.edu

http://www2.hawaii.edu/~safeeq/

"Leave the World better than you found it, take no more than you need, try
not to harm life or the environment, make amends if you do." Paul Hawken

**********************************************************

 

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