[Dhsvm-users] an error: Root not bracketed in RootBrent():
RootBrent: y = 37, x = 473
k.adams at auckland.ac.nz
Thu Feb 9 20:21:15 PST 2012
Gooday Caiyangcong and other users,
I thing the RootBrent message indicates that an intermediated result during the computer run has gone outside the expected range.
In an email of 5 Jun 2006, Laura Bowling wrote:
"Your problem in RootBrent indicates an instability in the energy balance calculations, so the actual problem is probably occurring much early in the model. I recommend checking all of your input time series carefully to look for any out of range values. (Like temperatures of -200 or precipitation of -999.)"
A search of the User Group archives might find other references to this problem.
Hope this helps.
Keith N. Adams, Research Fellow
School of Environment, The University of Auckland
Postal: Private Bag 92019, Victoria Street West, Auckland 1142, NEW ZEALAND
Email: k.adams at auckland.ac.nz<mailto:k.adams at auckland.ac.nz>
Phone: +64 9 373 7599 ext. 83886 Direct: +64 9 923 3886
Physical: Room 437, Building 201N (HSB), 10 Symonds Street
From: dhsvm-users-bounces at mailman2.u.washington.edu [dhsvm-users-bounces at mailman2.u.washington.edu] on behalf of caiyangcong [onion-20062006 at 163.com]
Sent: Friday, 10 February 2012 4:48 p.m.
To: dhsvm-users at u.washington.edu
Subject: [Dhsvm-users] an error: Root not bracketed in RootBrent(): RootBrent: y = 37, x = 473
Dear DHSVM users,
When running the DHSVM, I am having the following error:
Initializing dump procedures
Initializing snow map
Restoring model state
! changing LAI, albedo and diffuse transmission parameters
&nb! sp; Root not bracketed in RootBrent(): RootBrent: y = 37, x = 473
I have been trapped by this error for months, but still could't find a solition to it. Did anyone give me some tips. I would hightly appreciate any comment on this. Thank you!!
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