[Dhsvm-users] Effective LAI July 0.000000

[Keith Adams]

Rich,

Thanks for that corroboration.

I have looked back through results from previous runs, and "Effective 
LAI July" has always been 0.000000

The printf function in CheckOut.c is:
printf("Overstory LAI July %f Effective LAI July %f\n", 
VType[i].LAIMonthly[0][6], l);

The variable "l" ("l for Lima" not "one") is declared at the beginning 
of module, but is not assigned a value till after this printf function.
I suppose that also explains the strange values I have seen in other emails.

Keith.




Rich Gwozdz wrote:


> Keith,

> 

> I'm pretty sure this is just a problem with the variables in the printf 

> function that outputs to the console.  I get the same thing, but 

> sensitivity analysis I have run clearly indicate that LAI is not zero. 

> If you do a search for that console output you should be able to track 

> down the problem.  My guess is that the print statement is being fed the 

> wrong pointer.

> 

> Rich

> 

> _____________________________

> Rich Gwozdz

> Fire and Mountain Ecology Lab

> College of Forest Resources

> University of Washington

> cell: 206-769-6808 office: 206-543-9138

> rgwozdz at u.washington.edu

> 

> 

> 

> Keith Adams wrote:

> 

>> Dear DHSVM Users,

>>

>> I have just completed a run of a model created using DHSVM 2.0.1.

>> In the output to screen I got all effective LAI of zero (or possibly 

>> less than 0.0000005?), as below.

>>

>> ***

>> Vegetation Type: Horticulture on Warkworth Clay

>> 2meter    wind speed fraction of ref level 0.220162

>> Overstory LAI July 4.870000 Effective LAI July 0.000000

>>

>> Vegetation Type: Horticulture on River Flat Clay-Loam

>> 2meter    wind speed fraction of ref level 0.220162

>> Overstory LAI July 4.870000 Effective LAI July 0.000000

>> ***

>>

>>

>> Does anyone know why I am getting "Effective LAI July 0.000000"?

>>

>>

>> I have 9 vegetation types with overstory, and I got the same for all 

>> of them - Effective LAI July 0.000000.

>> The model run seemed to work OK in general, but evapotranspiration is 

>> a bit low.

>>

>> I have searched through the usergroup emails and couldn't find 

>> anything relevant.

>> I did notice that output in one email (16/01/2008) had very large 

>> negative values.

>>

>> Any suggestions would be much appreciated.

>>

>> Regards,

>> Keith Adams.

>> _______________________________________________

>> Dhsvm-users mailing list

>> Dhsvm-users at u.washington.edu

>> http://mailman1.u.washington.edu/mailman/listinfo/dhsvm-users

> 

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-- 
_______________________________________________ 

  Keith Adams,  Ph.D. Candidate
  School of Geography, Geology & Environmental Science
  The University of Auckland		
  Private Bag  92019, Auckland, New Zealand
  location:  room 736, Building 201N, 10 Symonds Street
             (Human Sciences Building, North Wing)
  email:  k.adams at auckland.ac.nz
  phone:  +64-9-373 7599  ext. 88202
  fax:  +64-9-373 7434 [mark Attention: Keith Adams]
  www:  http://www.sges.auckland.ac.nz/postgraduate/phds/students.shtm