jcwarner-usgs
commented
2 years ago ok, here are some things to look at. what does Hwave look like spatially? you can have swan write out the winds to a mat file, and then look at them.
Closed xiaomei01 closed 2 years ago
jcwarner-usgs
commented
2 years ago ok, here are some things to look at. what does Hwave look like spatially? you can have swan write out the winds to a mat file, and then look at them.
xiaomei01
commented
2 years ago Thank you for your prompt reply. I wrote out the winds to a netcdf file and found the winds are the same at different time. But the input wind file is not. I have attached the input (wind.dat), output (wind.nc) and swan.in.
Xiaomei Xu Graduate student (Marine Geology) Nanjing University School of Geography and Ocean Science 163 Xianlin Avenue, Qixia District, Nanjing, China, 210023 Email: @.***
***@***.*** On 12/8/2021 21:28，john @.***> wrote：
ok, here are some things to look at. what does Hwave look like spatially? you can have swan write out the winds to a mat file, and then look at them.
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从网易邮箱大师发来的云附件 wind.zip(163.0MB,2021年12月24日 17:8 到期) 下载
jcwarner-usgs
commented
2 years ago i did not get the attachments. i do not want to look at the wind.nc and wind.dat, i can trust that you looked at them. let me see what the swan.in file is. if it does not come attached, you can just paste the contents of that file here. it is only ~100 lines or so.
xiaomei01
commented
2 years ago OK, thank you. I paste the contents of the swan.in below.
_PROJECT 'NYS' ' ' 'NYS' 'Bathymetry: swan_bathy.bot' 'COMMENTS'
MODE NONSTATIONARY TWODIMENSIONAL
SET DEPMIN 0.10 INRHOG 1 NAUTICAL COORDINATES SPHERICAL
&& KEYWORD for number of nested SWAN grids. NSGRIDS 1
&& KEYWORDS TO CREATE AND READ COMPUTATIONAL GRID && CGRID CURVILINEAR 301 381 EXC 9.999000e+003 & CIRCLE 36 0.04 1.0 24 READGRID COORDINATES 1 'swan_coord.grd' 4 0 0 FREE
&& KEYWORDS TO CREATE AND READ BATHYMETRY GRID &&
INPGRID BOTTOM CURVILINEAR 0 0 301 381 EXC 9.999000e+003
READINP BOTTOM 1 'swan_bathy.bot' 4 0 FREE
&& KEYWORD TO CREATE CURRENT GRID && INPGRID CURRENT CURVILINEAR 0 0 301 381 EXC 9.999000e+003 & NONSTATIONARY 20201215.000000 31 DAY 20210115.000000
&& KEYWORD TO CREATE WATER LEVEL GRID && INPGRID WLEV CURVILINEAR 0 0 301 381 EXC 9.999000e+003 & NONSTATIONARY 20201215.000000 31 DAY 20210115.000000
&& KEYWORD TO CREATE BOTTOM FRICTION GRID && INPGRID FRIC CURVILINEAR 0 0 301 381 EXC 9.999000e+003 & NONSTATIONARY 20201215.000000 31 DAY 20210115.000000
&& KEYWORD TO CREATE WIND GRID && INPGRID WIND CURV 0. 0. 301 381 EXC -999 READINP WIND 1 'swan_wind.dat' 4 0 FREE
&& BOUNDARY FORCING && BOUND SHAPESPEC JONSWAP MEAN DSPR DEGREES BOUNDSPEC SEGMENT IJ 0 0 301 0 CONSTANT PAR 1.0 10.0 0. 20. BOUNDSPEC SEGMENT IJ 301 0 301 381 CONSTANT PAR 1.0 10.0 0. 20.
& Restart name ** &INIT HOTSTART 'swan_nys_rst.dat'
& PHYSICS ** GEN3 FRICTION MADSEN 0.05 &OFF QUAD
BLOCK 'COMPGRID' NOHEADER 'wind.nc' LAY 4 WIND 1. OUTPUT 20201215.000000 1 HR BLOCK 'COMPGRID' NOHEADER 'hsig.nc' LAY 4 HSIGN 1. OUTPUT 20201215.000000 3 HR
POINTS 'point1' 5000.0 10000.0 SPECOUT 'point1' SPEC2D 'point1.spc2d' OUTPUT 20201215.000000 1 HR TABLE 'point1' HEADER 'point1.table' HSIGN DIR DIRBOT WLEN OUTPUT 20201215.000000 3 HR
PROP BSBT RESTART 'swan_nys_rst.dat' FREE 1 HR
COMPUTE NONSTATIONARY 20201215.000000 1200 SEC 20210115.000000
STOP_
Hello,
I am running a coupled ROMS-SWAN application. However, the significant wave height doesn’t change with the change of wind field (the largest wind speed is around 20 m/s). The wind input file I made from the ROMS forcing file (ECMWF) using the file named ncei_2swan.m. I think there may be something wrong with the wind file, but I can't find it. Could you give me some suggestions?
Thank you xiaomei