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ROMS/TOMS

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PostPosted: Mon Sep 04, 2017 3:13 am 
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Location: south china sea institute of oceanography
Hi, everyone, I run ROMS and got the empty results (the NaN was shown in the first step and was attached below). I used Woapisces (have been provided by Olivier Aumont. These data have been computed by a coupled NEMO-PISCES global model) to compute the initial and boundary conditions of NO3 and O2.Then, I used WOA2009 ( World Ocean Atlas directory 2009 )to compute the initial and boundary conditions of temperature and salty. Then, I used coads dataset to compute forcing and boundary condition of Wind stress, Heat fluxes w3, Fresh water fluxes (evaporation - precipitation), Sea surface temperature and heat flux sensitivity to the sea surface temperature (dQdSST),Sea surface salinity,Short wave radiation, pair air pressure. the chlorophyll initial conditions was computed by using modis data in 2016,and NH4, LdetritusN, and et al were set as a constant with the time and loction in the boundary files. finally, i got a empty result and showd as below. Is there any way I can figure out what is the problem? the grid files? the water depth problem? or the parameter in the forcing file , boundary file ,and initial file are not match? or show i check some scripts to find out it?
Thank you so much for your help in advance. I have long struggled with the problem
TIME-STEP YYYY-MM-DD hh:mm:ss.ss KINETIC_ENRG POTEN_ENRG TOTAL_ENRG NET_VOLUME
C => (i,j,k) Cu Cv Cw Max Speed

0 0001-01-01 00:00:00.00 0.000000E+00 1.385104E+04 1.385104E+04 6.120327E+14
(000,000,00) 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00
DEF_HIS - creating history file, Grid 01: ocean_his.nc
WRT_HIS - wrote history fields (Index=1,1) in record = 0000001
DEF_AVG - creating average file, Grid 01: ocean_avg.nc
DEF_DIAGS - creating diagnostics file, Grid 01: ocean_dia.nc
1 0001-01-01 00:09:00.00 NaN NaN NaN NaN
(190,001,30) 1.953902E-02 7.791596E-03 0.000000E+00 Infinity


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PostPosted: Mon Sep 04, 2017 3:18 am 
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for Sea surface temperature and salinity in forcing files were computed by using the coads dataset (coads05) ,but the salinity and temperature in the boundary files were computed by using woapisces dataset. Would that be a problem?


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PostPosted: Mon Sep 04, 2017 6:56 am 
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Perhaps you should show us the ROMS output where it is reading all these files. It gives the min and max of everything, so that we can see if they are all sensible.

If you are getting NaNs, that's from the model physics, not the ecosystem stuff.


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PostPosted: Mon Sep 04, 2017 8:16 am 
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kate wrote:
Perhaps you should show us the ROMS output where it is reading all these files. It gives the min and max of everything, so that we can see if they are all sensible.

If you are getting NaNs, that's from the model physics, not the ecosystem stuff.


Thank you so much for your reply.
the information is:

Basin information for Grid 01:

Maximum grid stiffness ratios: rx0 = 2.309898E-01 (Beckmann and Haidvogel)
rx1 = 3.380662E+00 (Haney)

Initial basin volumes: TotVolume = 6.1203271774E+14 m3
MinVolume = 1.4128306732E+05 m3
MaxVolume = 2.4265090838E+09 m3
Max/Min = 1.7174804666E+04

NL ROMS/TOMS: started time-stepping: (Grid: 01 TimeSteps: 00000001 - 00001600)

GET_2DFLD - surface u-wind component, 0001-01-16 00:00:00.00
(Grid=01, Rec=0000001, Index=2, File: roms_frc.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -7.09940031E+00 Max = -2.02652608E+00) regrid = F
GET_2DFLD - surface v-wind component, 0001-01-16 00:00:00.00
(Grid=01, Rec=0000001, Index=2, File: roms_frc.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -8.94021906E+00 Max = -2.09216018E+00) regrid = F
GET_2DFLD - surface air pressure, 0001-01-16 00:00:00.00
(Grid=01, Rec=0000001, Index=2, File: roms_frc.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 8.81692599E+02 Max = 1.02820669E+03) regrid = F
GET_2DFLD - solar shortwave radiation flux, 0001-01-16 00:00:00.00
(Grid=01, Rec=0000001, Index=2, File: roms_frc.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 2.76230526E-05 Max = 4.07666000E-05) regrid = F
GET_2DFLD - surface air temperature, 0001-01-16 00:00:00.00
(Grid=01, Rec=0000001, Index=2, File: roms_frc.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 1.01931778E+01 Max = 2.32485524E+01) regrid = F
GET_2DFLD - surface air relative humidity, 0001-01-16 00:00:00.00
(Grid=01, Rec=0000001, Index=2, File: roms_frc.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 7.93226792E-01 Max = 8.58040507E-01) regrid = F
GET_NGFLD - temperature eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 2.07808005E+00 Max = 2.52018462E+01)
GET_NGFLD - salinity eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 3.38538422E+01 Max = 3.46242217E+01)
GET_NGFLD - nitrate eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 2.69948635E-01 Max = 4.16393587E+01)
GET_NGFLD - ammonium eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 5.00000000E+00 Max = 5.00000000E+00)
GET_NGFLD - chlorophyll eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 5.08890706E-03 Max = 2.21083747E+00)
GET_NGFLD - phytoplankton eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 2.54445353E-03 Max = 1.10541874E+00)
GET_NGFLD - zooplankton eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 1.01778141E-03 Max = 4.42167495E-01)
GET_NGFLD - large fraction nitrogen detritus eastern boundary0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 6.74871588E-04 Max = 1.04098397E-01)
GET_NGFLD - small fraction nitrogen detritus eastern boundary0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 1.34974318E-03 Max = 2.08196793E-01)
GET_NGFLD - large fraction carbon detritus eastern boundary c0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 1.34974318E-02 Max = 2.08196793E+00)
GET_NGFLD - small fraction carbon detritus eastern boundary c0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 1.34974318E-02 Max = 2.08196793E+00)
GET_NGFLD - TIC eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 2.68396431E+01 Max = 4.13999324E+03)
GET_NGFLD - alkalinity eastern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 2.98833139E+01 Max = 4.60947700E+03)
GET_NGFLD - temperature southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 2.07347797E+00 Max = 2.52018462E+01)
GET_NGFLD - salinity southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 3.30676247E+01 Max = 3.46498482E+01)
GET_NGFLD - nitrate southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -4.72082936E-02 Max = 4.15975251E+01)
GET_NGFLD - ammonium southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 5.00000000E+00 Max = 5.00000000E+00)
GET_NGFLD - chlorophyll southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 5.00979295E-03 Max = 2.45184533E+00)
GET_NGFLD - phytoplankton southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 2.50489647E-03 Max = 1.22592267E+00)
GET_NGFLD - zooplankton southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = 1.00195859E-03 Max = 4.90369067E-01)
GET_NGFLD - large fraction nitrogen detritus southern boundar0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -1.18020734E-04 Max = 1.03993813E-01)
GET_NGFLD - small fraction nitrogen detritus southern boundar0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -2.36041468E-04 Max = 2.07987626E-01)
GET_NGFLD - large fraction carbon detritus southern boundary 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -2.36041468E-03 Max = 2.07987626E+00)
GET_NGFLD - small fraction carbon detritus southern boundary 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -2.36041468E-03 Max = 2.07987626E+00)
GET_NGFLD - TIC southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -4.69368459E+00 Max = 4.13583394E+03)
GET_NGFLD - alkalinity southern boundary condition, 0001-01-16 00:00:00.00
(Grid= 01, Rec=0000001, Index=1, File: roms_bry.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -5.22595810E+00 Max = 4.60484603E+03)

TIME-STEP YYYY-MM-DD hh:mm:ss.ss KINETIC_ENRG POTEN_ENRG TOTAL_ENRG NET_VOLUME
C => (i,j,k) Cu Cv Cw Max Speed

0 0001-01-01 00:00:00.00 0.000000E+00 1.385104E+04 1.385104E+04 6.120327E+14
(000,000,00) 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00
DEF_HIS - creating history file, Grid 01: ocean_his.nc
WRT_HIS - wrote history fields (Index=1,1) in record = 0000001
DEF_AVG - creating average file, Grid 01: ocean_avg.nc
DEF_DIAGS - creating diagnostics file, Grid 01: ocean_dia.nc
1 0001-01-01 00:09:00.00 NaN NaN NaN NaN
(190,001,30) 1.953902E-02 7.791596E-03 0.000000E+00 Infinity


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PostPosted: Mon Sep 04, 2017 8:28 am 
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Location: south china sea institute of oceanography
I found the min and max value of free surface,u-momentum component is zero. would that cold be a problem? the study area is 105-118E;17-24N.
should I use the woa or coads data to compute the free surface in the initial file.
NLM: GET_STATE - Read state initial conditions, 0001-01-01 00:00:00.00
(Grid 01, t = 0.0000, File: roms_ini.nc, Rec=0001, Index=1)
- free-surface
(Min = 0.00000000E+00 Max = 0.00000000E+00)
- vertically integrated u-momentum component
(Min = 0.00000000E+00 Max = 0.00000000E+00)
- vertically integrated v-momentum component
(Min = 0.00000000E+00 Max = 0.00000000E+00)
- u-momentum component
(Min = 0.00000000E+00 Max = 0.00000000E+00)
- v-momentum component
(Min = 0.00000000E+00 Max = 0.00000000E+00)
- potential temperature
(Min = 2.06699248E+00 Max = 2.52018462E+01)
- salinity
(Min = 3.21682034E+01 Max = 3.46627592E+01)
- nitrate concentration
(Min = -1.47846501E+00 Max = 4.17511299E+01)
- ammonium concentration
(Min = -1.84808126E-02 Max = 5.21889124E-01)
- chlorophyll concentration
(Min = 0.00000000E+00 Max = 1.49550091E+01)
- phytoplankton concentration
(Min = 0.00000000E+00 Max = 7.47750454E+00)
- zooplankton concentration
(Min = 0.00000000E+00 Max = 2.99100181E+00)
- large fraction nitrogen detritus concentration
(Min = -3.69616252E-03 Max = 1.04377825E-01)
- small fraction nitrogen detritus concentration
(Min = -7.39232503E-03 Max = 2.08755649E-01)
- large fraction carbon detritus concentration
(Min = -7.39232503E-02 Max = 2.08755649E+00)
- small fraction carbon detritus concentration
(Min = -7.39232503E-02 Max = 2.08755649E+00)
- total inorganic carbon
(Min = 1.98850000E+03 Max = 1.98850000E+03)
- total alkalinity
(Min = 2.21400000E+03 Max = 2.21400000E+03)
GET_NGFLD - tidal period
(Grid = 01, Min = 4.30819210E+04 Max = 2.38071599E+06)
GET_2DFLD - tidal elevation amplitude
(Grid = 01, Min = 5.60665872E-06 Max = 1.40909152E+01)
GET_2DFLD - tidal elevation phase angle
(Grid = 01, Min = 4.78313257E-07 Max = 6.28318512E+00)


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PostPosted: Mon Sep 04, 2017 3:46 pm 
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You had said you were applying the stresses from COADS, but yet the model is reading winds, air pressure and the rest. This looks odd:
Code:
GET_2DFLD - surface u-wind component, 0001-01-16 00:00:00.00
(Grid=01, Rec=0000001, Index=2, File: roms_frc.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -7.09940031E+00 Max = -2.02652608E+00) regrid = F
GET_2DFLD - surface v-wind component, 0001-01-16 00:00:00.00
(Grid=01, Rec=0000001, Index=2, File: roms_frc.nc)
(Tmin= 15.0000 Tmax= 345.0000) t = 15.0000
(Min = -8.94021906E+00 Max = -2.09216018E+00) regrid = F
in that all the winds are negative. I would ask the model to write out surface fluxes and stresses to see if those look reasonable. I would try a much shorter timestep to see if you can get it to run long enough to output some useful fields so you can figure out where in the domain it is going bad.

I would not worry about starting from rest. The model spins up to match the density fields pretty quickly.


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PostPosted: Wed Sep 06, 2017 2:29 am 
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Location: south china sea institute of oceanography
kate wrote:
You had said you were applying the stresses from COADS, but yet the model is reading winds, air pressure and the rest. This looks odd:
in that all the winds are negative. I would ask the model to write out surface fluxes and stresses to see if those look reasonable. I would try a much shorter timestep to see if you can get it to run long enough to output some useful fields so you can figure out where in the domain it is going bad.

thx,I really appreciated the suggestions you gave. it is important clue for me who only have biological background.
I changed the timestep.
Code:
100  ntimes            Number of timesteps for 3-D equations.
90.000  dt                Timestep size (s) for 3-D equations.
5  ndtfast           Number of timesteps for 2-D equations between

write out the wind stress.
Code:
T  Hout(idUsms)      Write out surface U-momentum stress.
T  Hout(idVsms)      Write out surface V-momentum stress.

ROMS can run and calculate:
Code:
DEF_DIAGS   - creating  diagnostics  file, Grid 01: data2/ocean_dia.nc
         1 0001-01-01 00:01:30.00  2.119091E-03  1.022561E+02  1.022582E+02  4.712932E+11
                     (001,202,30)  1.451571E-01  2.060904E-03  0.000000E+00  1.980366E+00
         2 0001-01-01 00:03:00.00  3.008514E-03  1.022790E+02  1.022820E+02  4.711565E+11
                     (001,198,30)  1.850742E-01  1.725912E-04  3.389906E+01  2.188908E+00
         3 0001-01-01 00:04:30.00  4.848609E-03  1.023024E+02  1.023072E+02  4.710154E+11
                     (002,204,30) 
(100 steps were finished and I did not copy them all)
the parameter only at first time step existed in the avg.nc file. I attached the nc file here.
I will try to turnoff the biological mode part and check the forcing, grid files again.


Attachments:
ocean_dia.nc [14.49 MiB]
Downloaded 4 times
chlorophyll_sig_1_T=1_ .png
chlorophyll_sig_1_T=1_ .png [ 64.18 KiB | Viewed 404 times ]
shflux_sig_1_T=1_ .png
shflux_sig_1_T=1_ .png [ 59.55 KiB | Viewed 404 times ]
swrad_sig_1_T=1_ .png
swrad_sig_1_T=1_ .png [ 69.46 KiB | Viewed 404 times ]
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PostPosted: Wed Sep 06, 2017 4:16 am 
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Your surface heat flux looks bizarre to the south there.


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PostPosted: Thu Sep 14, 2017 3:17 am 
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Location: south china sea institute of oceanography
kate wrote:
Your surface heat flux looks bizarre to the south there.

i did my best to figure out why latent,sensible,and shlux is so wield in history file "roms_his.nc" (results were attached below). however, I have no clue. "lwrad" seems ok in history file(roms_his.nc).
I go back to check the forcing file (roms_frc.nc) which I used "coads" and "NCEP/NCAR Reanalysis Monthly Means" data (attached below).


Attachments:
File comment: temperature in history file
temp_sig_1_T=1_ .png
temp_sig_1_T=1_ .png [ 72.91 KiB | Viewed 350 times ]
File comment: shflux in history file
shflux_sig_1_T=1_ .png
shflux_sig_1_T=1_ .png [ 69.47 KiB | Viewed 350 times ]
File comment: sensible in history file
sensible_sig_1_T=1_ .png
sensible_sig_1_T=1_ .png [ 63.62 KiB | Viewed 350 times ]
File comment: lwrad in history file
lwrad_sig_1_T=1_ .png
lwrad_sig_1_T=1_ .png [ 67.46 KiB | Viewed 350 times ]
File comment: latent in history file
latent_sig_1_T=1_ .png
latent_sig_1_T=1_ .png [ 68.54 KiB | Viewed 350 times ]
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PostPosted: Thu Sep 14, 2017 4:06 am 
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Location: south china sea institute of oceanography
kate wrote:
Your surface heat flux looks bizarre to the south there.

here is dQdSST,"latent",lward,pair,sensible,shflux,sst in forcing file, roms_frc.nc


Attachments:
SST_T=_ .png
SST_T=_ .png [ 181.5 KiB | Viewed 349 times ]
shflux_T=_ .png
shflux_T=_ .png [ 202.8 KiB | Viewed 349 times ]
sensible_T=_ .png
sensible_T=_ .png [ 98.35 KiB | Viewed 349 times ]
lwrad_T=_ .png
lwrad_T=_ .png [ 202.94 KiB | Viewed 349 times ]
latent_T=_ .png
latent_T=_ .png [ 97.88 KiB | Viewed 349 times ]
dQdSST_T=_ .png
dQdSST_T=_ .png [ 182.52 KiB | Viewed 349 times ]
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PostPosted: Thu Sep 14, 2017 4:21 am 
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Location: south china sea institute of oceanography
parameters in restart file"rst.nc" look normal.
paramters in bry.nc "boundary condition files" look normal except NH4 is a constant .

it is only one effective value in my region (the region is too small), and this value was obtained from coads data. acutally, i set the value of TIC,alkalinity by myself. NO3 which from coads data was multiplied by a different factor to get TIC,alkalinity, and so on.


Attachments:
NH4_T=1_ .png
NH4_T=1_ .png [ 34.28 KiB | Viewed 349 times ]
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