Opened 6 years ago

Closed 6 years ago

#156 closed defect (fixed)

Bug - interpolation of SWdown with 'daily' forcing files

Reported by: nvuilsce Owned by: somebody
Priority: major Milestone:
Component: Driver files Version:
Keywords: Cc:


Yiying Chen has detected a bug in the driver of ORCHIDEE, with the interpolation of the shortwave downward radiation when using daily forcing files (ie. One value per day).
This induces an overestimation of the radiation in the Northern Hemisphere and an underestimation in the Southern Hemisphere. Further you are from the equator, the greater the error is. The error also varies with time, with maximal error values in June.
Here below, are the errors on the annual mean swdown flux associated with this bug, in absolute (W m-2) and relative (not expressed as a percentage !) values:

Relative error on SwdownAbsolute error on Swdown
Relative Error Absolute Error

Attachments (2)

abs_err.gif (13.7 KB) - added by nvuilsce 6 years ago.
Absolute error on Swdown
rel_err.gif (13.7 KB) - added by nvuilsce 6 years ago.
Relative error on Swdown

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Change History (3)

Changed 6 years ago by nvuilsce

Absolute error on Swdown

Changed 6 years ago by nvuilsce

Relative error on Swdown

comment:1 Changed 6 years ago by nvuilsce

  • Resolution set to fixed
  • Status changed from new to closed

The bug has been fixed in the trunk, revision r2422.
Change in the code only concerns a line and can be easily implement in any version of ORCHIDEE.

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