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At present, for different wind input files, different headers are used, which are read in different ways in the sourcecode. Some effeort has been put to in making the files more self-descriptive, readible and to make the input of the different files more consistent. For three wind-input options, a suggestion to standardise the headers is shown below. The suggestion is conform the a possible transition to NetCDF format in the future. See NetCDF standard names for more information on the used standard NetCDF names. An integrated file format is proposed which can be used for all wind input optionsFor Pseudo ArcInfo wind, wind on a separate curvi-linear grid and Spiderweb wind three examples of input files are shown below. Comments are indicated by a # (this is open for discussion).
| Code Block |
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### START OF HEADER
### This file is created by Deltares
### Additional commments
###meteotype General part:
meteotype = = arcinfo spiderweb # Type of meteo input file: curvi, arcinfo or spiderweb
time_definition = minutes since 2007-10-08 15:24:00 -0602:00 # Fixed format: time unit since date time time difference (time zone)
NODATA_value = -999.000 # Value used for undefined or missing data
### For Pseudo ArcInfo or Spiderweb wind:
n_cols = 400 # Number of columns used for wind datafield
n_rows = 16 # Number of rows used for wind datafield
### Only for Pseudo ArcInfo wind:
#gridgrid_unit = degree # Unit of distances on the grid in both x- and y-direction
##grid#grid_unit = m
#xx_llcorner = -12.000 # Xcoordinate of lower left corner of grid (in units specified in grid_unit)
#yy_llcorner = 48.000 # Ycoordinate of lower left corner of grid (in units specified in grid_unit)
#valuevalue_pos = centre # Location where the data is specified in a cell (centre or corner)
##value#value_pos = corner
#dxdx = 0.12500 # Grid dimensions: dx and dy (in units specified in grid_unit)
#dydy = 0.083333333
#nn_quantity = 3 # Number of quantities prescribed in the file
#quantity1quantity1 = x_wind # Name of quantity1
#quantity1 = y_wind # Name of quantity1
#quantity1 = air_pressure # Name of quantity1
#unit1unit1 = m s-1 # Unit of quantity1
#unit1 = Pa # Unit of quantity1
### Only for Spiderweb wind:
spw_radiusEND OF HEADER
TIME = 6000000.0000000E+00 # Time where first #dataset Radiusis of spiderweb (in units specified in rad_unit)
spw_rad_unit =supplied
1.388999 1.388999 m 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 # Unit of radius
n_quantity 155.0000 = 346.2500 3 357.5000 8.750000 20.00000 31.25000 42.50000 53.75000 65.00000 # Number of quantities76.25000 prescribed in the file
quantity1 5300.000 = 5300.000 wind_speed 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 # Name of quantity1
quantity2 5300.000 = 5300.000 wind_from_direction
TIME = 1440 # Name of quantity2
quantity3 = air_pressure_drop # Time where next dataset is supplied
2.435253 2.435253 # Name of quantity3
unit1 2.435253 2.435253 = m s-12.435253 2.435253 2.435253 2.435253 2.435253 2.435253
65.01978 75.11859 # Unit 85.25320 95.45370 105.7529 116.1833 126.7762 137.5612 148.5649 159.8090
5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544
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- Wind on a separate curvi-linear grid:
| Code Block |
|---|
### START OF HEADER
### This file is created by Deltares
### Additional commments
meteotype = curvi # Type of meteo input file: curvi, arcinfo or spiderweb
time_definition = hours since 2006-01-01 00:00:00 -06:00 # Fixed format: time unit since date time time difference (time zone)
NODATA_value = -999.000 # Value used for undefined or missing data
curvi_grid_file = hirlam.grd # Separate (curvi-linear) grid on which the wind can be specified
data_order = m_first # m_first or n_first data order
row_order = reversed # normal or reversed row order
column_order = normal # normal or reversed column order
n_quantity = 1 # Number of quantities prescribed in the file
quantity1 = x_wind # Name of quantity1
#quantity1 = y_wind # Name of quantity1
#quantity1 = air_pressure # Name of quantity1
unit1 = m s-1 # Unit of quantity1
#unit1 = Pa # Unit of quantity1
### END OF HEADER
TIME = 0.0000000E+00 # Time where first dataset is supplied
1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999
155.0000 346.2500 357.5000 8.750000 20.00000 31.25000 42.50000 53.75000 65.00000 76.25000
5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000
TIME = 1440 # Time where next dataset is supplied
2.435253 2.435253 2.435253 2.435253 2.435253 2.435253 2.435253 2.435253 2.435253 2.435253
65.01978 75.11859 85.25320 95.45370 105.7529 116.1833 126.7762 137.5612 148.5649 159.8090
5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544
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| Code Block |
|---|
### START OF HEADER
### This file is created by Deltares
### Additional commments
meteotype = spiderweb # Type of meteo input file: curvi, arcinfo or spiderweb
time_definition = minutes since 2004-01-03 11:02:00 +01:00 # Fixed format: time unit since date time time difference (time zone)
NODATA_value = -999.000of quantity1
unit2 = degree # Unit of quantity2
unit3 # Value used for undefined =or missing data
n_cols Pa = 400 # Unit of quantity3
### Only for wind on a separate# curvi-linear grid:
#grid_file =Number of columns used for wind datafield
n_rows hirlam.grd = 16 # Separate (curvi-linear) grid on which the wind can be specified
#data_order =# Number of rows m_firstused for wind datafield
spw_radius = 600000.00 # m_first or n_first data order
#row_order # Radius =of spiderweb (in units reversedspecified in rad_unit)
spw_rad_unit = m # normal or reversed row order
#column_order = normal # Unit of radius
n_quantity = 3 # normal or reversed column order
#n_quantity = 1 # Number of quantities prescribed in the file
quantity1 = wind_speed # Number of quantities prescribed in the file
#quantity1 = # x_windName of quantity1
quantity2 = wind_from_direction # Name of quantity1quantity2
#quantity1quantity3 = yair_pressure_winddrop # Name of quantity3
unit1 # Name of= quantity1
#quantity1 m s-1 = air_pressure # NameUnit of quantity1
#unit1unit2 = mdegree s-1 # Unit of quantity1quantity2
#unit1unit3 = Pa # Unit of quantity1quantity3
### END OF HEADER
TIME = 0.0000000E+00 # Time where first dataset is supplied
x_spw_eye = 115.4 # Xcoordinate of cyclone eye (Spiderweb centre) at specified TIME
y_spw_eye = 18.9 # Ycoordinate of cyclone eye (Spiderweb centre) at specified TIME
p_drop_spw_eye = 5300 # Pressure drop at cyclone eye (Spiderweb centre) at specified TIME
1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999 1.388999
155.0000 346.2500 357.5000 8.750000 20.00000 31.25000 42.50000 53.75000 65.00000 76.25000
5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000 5300.000
TIME = 1440 # Time where next dataset is supplied
x_spw_eye = 114.4000 # Xcoordinate of cyclone eye (Spiderweb centre) at specified TIME
y_spw_eye = 18.90000 # Ycoordinate of cyclone eye (Spiderweb centre) at specified TIME
p_drop_spw_eye = 5300.000 # Pressure drop at cyclone eye (Spiderweb centre) at specified TIME
2.435253 2.435253 2.435253 2.435253 2.435253 2.435253 2.435253 2.435253 2.435253 2.435253
65.01978 75.11859 85.25320 95.45370 105.7529 116.1833 126.7762 137.5612 148.5649 159.8090
5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544 5298.544
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