Progress Report July 2012 I. Coupled Physical-Biological modeling in SABGOM (SABGOM-BIO, carbon...
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Transcript of Progress Report July 2012 I. Coupled Physical-Biological modeling in SABGOM (SABGOM-BIO, carbon...
Progress ReportJuly 2012
I. Coupled Physical-Biological modeling inSABGOM (SABGOM-BIO, carbon component);
II. Coupled Sediment Transport Modeling inBohai Sea, Yellow Sea, and East China Sea,(BYESED)
Problems and Possible Fix
• Simulated pCO2 is generally higher than observations; Simulated pCO2 is in better agreement with observations during winter (Dec, Jan) than other seasons (Aug, Oct);
• Possible solutions
CPP: conservative alkalinity
River Input: turn on/off DIC alkalinity inputs
Atmospheric CO2 concentration
BYESED
• Coupled wave-ocean-sediment transport modeling (COAWST)
• ~50 year hindcast (1958-2006)
• Realistic forcings (atmospheric, ocean, & river input)
• Model stops after 8 yrs simulation (1958-1966 or 1966-1974);• Solution- memory issue?- Reduce history
file output variables;
• Other difficulties: 1.5T external disk for omglnx6 and omglnx9 signaled on/off frequently
Problems and Possible Fix
July-16 Progress Report
• BYESED (East China Sea sediment transport)1) Try to run COAWST on RENCI, failed– COAWST
support NETCDF 3.X; RENCI only have 4.X;2) Try to run uncoupled (SWAN/ROMS independently)— Results are different from coupled even no wave-
current interaction is activated– SWAN read UV/Zeta from ROMS from time to time
3) Try to run coupled case, increase SWAN step (10min – 20 min) and reduce SWAN-ROMS coummunication (4-hourly to daily): 64 processors on He2, will take < 10 days for an experiment (in-process)
Plan for next week and Problems
• Finish one BYESED experiment
• Look into SABGOM_BIO application if processors are available (compare in-situ T/S observation)
• Problems: external disk lost connection even touch/cp every 0.5 hours
Progress Report July 23rd
• What I have done• BYESED application: 1.increase SWAN-ROMS communication interval to 1
day, SWAN timesteps to 20 mins; 2.Using COAWST v587, model stop again around year
1977; 3. Using COAWST v411, model stop around year 1972
because of disk space on share2• SABGOM_NF system 1. generate particle release webpage at
http://omglnx9.meas.ncsu.edu/zxue/SABGOM/track.html