XBeach
XBeach is a two-dimensional model for wave propagation, long waves and mean flow, sediment transport and morphological changes of the nearshore area, beaches, dunes and backbarrier during storms.
Example configuration
Start up activities
As a first activity it can be useful to delete all files present in the workDir, if for example it would be filled with files from a previous run.
<startUpActivities> <purgeActivity> <filter>workDir*</filter> </purgeActivity> </startUpActivities>
Export activities
The first steps in the general adapter run are the data set, netcdf and run file export activities. The <exportDataSetActivity> will extract a zip file with the module instance id as file name located in "Config\ModuleDataSetFiles\" of the FEWS environment to the workdir. The <exportNetcdfActivity>'s will be a netcdf file (bcfile.nc) containing Swan golf spectra over time and a netcdf file (zs0file.nc) containing water level over time. The <exportNetcdfRunFileActivity> will be a netcdf run file that contains information needed by the pre adapter. The information will be automatically filled by the general adapter but properties can be configured as extra information. For example properties starting with "PARAM_" will be passed literally to XBeach without "PARAM_" (and in lower case).
<exportActivities> <exportDataSetActivity> <moduleInstanceId>Run_XBeach</moduleInstanceId> </exportDataSetActivity> <exportNetcdfActivity> <exportFile>bcfile.nc</exportFile> <timeSeriesSets> <timeSeriesSet> <moduleInstanceId>Run_XBeach</moduleInstanceId> <valueType>scalar</valueType> <parameterId>EnDens</parameterId> <domainParameterId>AFREQ</domainParameterId> <domainParameterId>NDIR</domainParameterId> <locationId>Dummy</locationId> <timeSeriesType>external historical</timeSeriesType> <timeStep unit="hour"/> <relativeViewPeriod unit="hour" start="-24" end="0"/> <readWriteMode>add originals</readWriteMode> <synchLevel>1</synchLevel> </timeSeriesSet> </timeSeriesSets> </exportNetcdfActivity> <exportNetcdfActivity> <exportFile>zs0file.nc</exportFile> <timeSeriesSets> <timeSeriesSet> <moduleInstanceId>Run_XBeach</moduleInstanceId> <valueType>scalar</valueType> <parameterId>H_mean</parameterId> <locationId>Dummy</locationId> <timeSeriesType>external historical</timeSeriesType> <timeStep unit="minute" multiplier="10"/> <relativeViewPeriod unit="hour" start="-24" end="0"/> <readWriteMode>add originals</readWriteMode> </timeSeriesSet> </timeSeriesSets> </exportNetcdfActivity> <exportNetcdfRunFileActivity> <description>This run file is passed as argument to XBeachPreAdapter</description> <exportFile>run.nc</exportFile> <properties> <string key="PARAM_OUTPUTFORMAT" value="netcdf"/> </properties> </exportNetcdfRunFileActivity> </exportActivities>
Execute activities
The next steps are the execute activities. The first will be the pre adapter. This program will read the run.nc input file and use the contents for instructions on which directory and files should be used to convert to the correct XBeach input format.
<executeActivities> <executeActivity> <command> <className>com.deltares.fews.xbeachadapters.preadapter.XBeachPreAdapter</className> <binDir>adapter\bin</binDir> </command> <arguments> <argument>run.nc</argument> </arguments> <timeOut>99999999</timeOut> </executeActivity> <executeActivity> <command> <executable>xbeach.exe</executable> </command> <timeOut>99999999</timeOut> </executeActivity> </executeActivities>
Golf spectrum conversion
"bcfile.nc" will be used to write the golf spectra into the following format:
- bcfile.txt referencing to golf spectrum files and a time of how long these should be used in each calculation step
FILELIST 3600.0 1.0 bc.time001.sp2 3600.0 1.0 bc.time002.sp2 3600.0 1.0 bc.time003.sp2 3600.0 1.0 bc.time004.sp2 3600.0 1.0 bc.time005.sp2 3600.0 1.0 bc.time006.sp2 3600.0 1.0 bc.time007.sp2 3600.0 1.0 bc.time008.sp2 3600.0 1.0 bc.time009.sp2 3600.0 1.0 bc.time010.sp2
- bc.time001.sp2 containing a golf spectrum
SWAN 1 Swan standard spectral file, version $ Data exported by FEWS for SWAN $ Project: ; run number: TIME time-dependent data 1 time coding option LONLAT locations in spherical coordinates 1 number of locations 4.6019540 52.6194688 AFREQ 1/s 25 number of frequencies 0.0500 0.0566 0.0642 ... 0.7791 0.8827 1.0000 NDIR degrees 36 number of directions 265.0000 255.0000 245.0000 ... -65.0000 -75.0000 -85.0000 QUANT 1 number of quantities in table EnDens id m unit -0.9900E+02 exception value 20010101.000000 date and time FACTOR 0.0011500214 0 0 0 0 0 0 0 0 0 0 ... 0 0 0 0 0 0 0 0 0 0 0 0 0 ... 0 0 0 0 0 0 0 0 0 0 0 0 0 ... 0 0 0 1 1 0 0 0 0 0 0 0 0 ... 0 0 1 40 27 9 3 3 3 2 0 0 0 ... 2 9 28 610 294 70 17 24 31 17 0 0 0 ... 67 303 626 4916 1621 268 57 119 193 145 23 0 1 ... 1780 5295 7229 13782 3341 415 94 287 659 803 340 0 6 ... 14433 28039 27099 14186 2446 257 68 290 982 1874 1407 5 3 ... 52381 62127 39577 10369 1638 231 37 90 431 1241 1598 227 0 ... 99999 80353 37089 8225 1923 361 54 17 70 324 770 448 0 ... 77305 54223 24535 6742 1962 381 88 21 6 30 143 211 0 ... 42814 28100 15442 5744 2480 622 147 34 5 1 8 30 0 ... 27283 16631 9808 4448 2618 1011 228 41 6 0 0 2 2 ... 15103 9139 6001 2853 2150 977 217 34 5 1 0 0 0 ... 8682 5250 3507 1818 1588 752 160 20 4 1 0 0 0 ... 4838 2895 2116 1064 927 597 168 23 3 0 0 0 0 ... 2374 1383 1151 517 534 423 142 23 2 0 0 0 0 ... 1182 789 561 243 299 202 87 17 1 0 0 0 0 ... 756 329 262 137 112 87 51 12 1 0 0 0 0 ... 243 98 120 86 40 34 18 5 1 0 0 0 0 ... 137 117 142 55 21 8 4 2 0 0 0 0 0 ... 137 123 87 24 13 3 1 0 0 0 0 0 0 ... 83 74 62 6 7 1 0 0 0 0 0 0 0 ... 58 27 16 6 3 0 0 0 0 0 0 0 0 ... 39 20 10
Water level conversion
In this example "zs0file.nc" will be used to write the time dependent water levels to a file named "zs0file.txt". The first column specifies the time (meaning defined in "PARAM_TUNITS") and the second column water level. For now the adapter only supports the water level as a single boundary condition but XBeach has to possibility to also use 2 or 4 resulting in 1 or 3 extra columns.
0.0000000e+000 -2.2000000e-002 6.0000000e+002 2.2000000e-002 1.2000000e+003 6.4999998e-002 1.8000000e+003 1.0800000e-001 2.4000000e+003 1.5200000e-001 3.0000000e+003 1.9400001e-001 3.6000000e+003 2.3700000e-001 4.2000000e+003 2.7900001e-001 4.8000000e+003 3.1999999e-001 5.4000000e+003 3.6100000e-001 6.0000000e+003 4.0099999e-001 6.6000000e+003 4.4100001e-001 7.2000000e+003 4.7900000e-001 7.8000000e+003 5.1700002e-001 8.4000000e+003 5.5400002e-001 9.0000000e+003 5.8999997e-001 9.6000000e+003 6.2400001e-001 1.0200000e+004 6.5700001e-001 1.0800000e+004 6.9000000e-001 1.1400000e+004 7.2000003e-001 1.2000000e+004 7.5000000e-001 1.2600000e+004 7.7800000e-001 1.3200000e+004 8.0500001e-001 1.3800000e+004 8.2999998e-001 1.4400000e+004 8.5299999e-001 1.5000000e+004 8.7500000e-001 1.5600000e+004 8.9499998e-001 1.6200000e+004 9.1399997e-001 1.6800000e+004 9.3000001e-001 1.7400000e+004 9.4599998e-001 1.8000000e+004 9.5899999e-001
Parameter conversion
It is possible to change model parameters as defined in params.txt from FEWS. The pre adapter will convert all run file properties starting with "PARAM_" to XBeach parameters in "params.txt". Example: params.txt.
It reads the existing "params.txt" and searches for a line starting with the specified parameter and replaces the whole line with "parameter = value" or adds a new line in the same format when the parameter was not present yet.
---------------------------------------------------- Grid input nx = 154 ny = 70 xfile = x.grd yfile = y.grd xori = 101627.84 yori = 513562.63 depfile = egmondxbeach.dep ---------------------------------------------------- Numerics input CFL = 0.8 eps = 0.01 ---------------------------------------------------- Time input tstart = 0. tstop = 36000 ---------------------------------------------------- General constants rho = 1025 g = 9.81 ---------------------------------------------------- Boundary condition options zs0file = zs0file.txt tideloc = 1 ---------------------------------------------------- Wave calculation options bcfile = bcfile.txt ---------------------------------------------------- Flow calculation options nuh = 0.1 nuhfac = 1.0 ---------------------------------------------------- Sediment transport calculation options facua = 0.10 D50 = 0.0002 ---------------------------------------------------- Morphological calculation options morfac = 10 morstart = 3600 ---------------------------------------------------- Output options outputformat = netcdf nglobalvar = 3 tunits = seconds since 2001-01-01
Executing model run
The next activity will be executing the XBeach model run. This is done by running xbeach.exe in the workdir containing the model files.
<executeActivity> <command> <executable>xbeach.exe</executable> </command> <timeOut>99999999</timeOut> </executeActivity>
Importing Xbeach output
The last part of the general adapter run is importing the XBeach output. xboutput.nc contains all parameter, output and grid information of the run. This can be visualized in FEWS after defining the needed parameters, location and grid. How to do this can be found here: XBeach FEWS setup
<importActivities> <importPiNetcdfActivity> <importFile>xboutput.nc</importFile> <timeSeriesSets> <timeSeriesSet> <moduleInstanceId>Run_XBeach</moduleInstanceId> <valueType>grid</valueType> <parameterId>H_max</parameterId> <locationId>Dummy</locationId> <timeSeriesType>external historical</timeSeriesType> <timeStep unit="hour"/> <readWriteMode>add originals</readWriteMode> </timeSeriesSet> </timeSeriesSets> </importPiNetcdfActivity> </importActivities>