Jann Paul Mattern
Graduate Student
Department of Oceanography
Dalhousie University
1355 Oxford Street
PO BOX 15000
Halifax, NS, B3H 4R2
Room 3626 LSC
Phone +1 (902) 494 3670
Fax +1 (902) 494 3877
E-mail: me
I am a PhD student interested in applying statistical methods to problems in oceanography.
Current Projects
Sequential data assimilation techniques incorporate measured data into numerical models in order to improve their performance. Currently I'm working on sequential data assimilation for 3D biologial ocean models using satellite data.
Open Source Code (written for my master's thesis)
Sequential data assimilation methods require many model runs with different initial conditions or varying parameters. The 1D biological ocean model I used to test different assimilation implementations is based on GOTM (see www.gotm.net). Starting GOTM with different parameters requires editing one or more files (Fortran namelists) before running the model -- doing this manually is no fun and not feasible for thousands of model runs. So I wrote a rather simple matlab interface which does the job for me.
rungotm is a matlab function that starts GOTM from within matlab. Values for the parameters GOTM uses can be passed to rungotm, there is no need to manually edit the GOTM namelist files. Multiple GOTM runs with different parameter combinations can be performed with one call to rungotm. The output of rungotm is customizable, it can for example be an ID number that leads to the GOTM output.
More information can be found here.