cold sst and temp is not varying

General scientific issues regarding ROMS

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mashinde
Posts: 135
Joined: Mon Jun 22, 2009 3:46 pm
Location: Indian Institute of Tropical Meteorology, Pune, INDIA

cold sst and temp is not varying

#1 Unread post by mashinde »

Hi,

I am forcing ROMS with era interim 6hrly data for 1998. for one year simulation it gives cold ssts and temp is not varying. I don't know why this is happening. my cppdefs.h is as below...

/* Basic physics options */
#define UV_ADV
#define UV_COR
#define UV_VIS4
#define MIX_S_UV
#define TS_DIF4
#define MIX_GEO_TS
#define SOLVE3D
#define SALINITY
#define NONLIN_EOS
/* Basic numerics options */
#define TS_U3HADVECTION
#define TS_C4VADVECTION
#define DJ_GRADPS
#define SPLINES
#define CURVGRID
#define MASKING
/* Outputs */
#define AVERAGES
#define DIAGNOSTICS_UV
#define UV_QDRAG
#define VISC_GRID
#define DIFF_GRID
#define BULK_FLUXES
#define LONGWAVE_OUT
#define EMINUSP
#define SOLAR_SOURCE
#define DIURNAL_SRFLUX
#define ANA_RAIN
#define SRELAXATION
/* Analytical options */
#define ANA_BSFLUX
#define ANA_BTFLUX
#define GLS_MIXING
#if defined GLS_MIXING || defined MY25_MIXING
#define KANTHA_CLAYSON
#define N2S2_HORAVG
#define CANUTO_A
#define CRAIG_BANNER
#define CHARNOK
#endif
/* Open boundary condition settings */
#define EASTERN_WALL
#define SOUTH_FSCHAPMAN
#define NORTH_FSCHAPMAN
#define WEST_FSCHAPMAN
#define SOUTH_M2FLATHER
#define NORTH_M2FLATHER
#define WEST_M2FLATHER
#define SOUTH_TRADIATION
#define SOUTH_TNUDGING
#define NORTH_TRADIATION
#define NORTH_TNUDGING
#define WEST_TRADIATION
#define WEST_TNUDGING
#define ANA_FSOBC
#define ANA_M2OBC
#define TCLIMATOLOGY
#define TCLM_NUDGING
#include "globaldefs.h"

i am using following variables from era interim.
u10m, v10m, t2m, msl, rh, swrad, lwrad_down and total rainfall

I also attached here with monthly mean SST for 1998 with era interim forcing. Please tell me how can I solve this problem. summer months should show warm temperature.

Thanking you

regards
Attachments
r16_eraint98_sst_plot.png

User avatar
kate
Posts: 4088
Joined: Wed Jul 02, 2003 5:29 pm
Location: CFOS/UAF, USA

Re: cold sst and temp is not varying

#2 Unread post by kate »

You'll need to do a little more digging. Look at the stdout output file from ROMS to see the reports from GET_2DFLD when reading in the atmospheric components. Are they varying with the seasons? Have you output the heat fluxes as seen by ROMS? What do they look like month by month? Didn't someone else report something like this? Please let us know what you find out.

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