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Description: Climatology - third party format | Version: 4.9.0 | Updated: 10.03.09 | |
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Climatology data given as frequency distributions and time histories can be converted to the WindSim frequency distribution .wws format. As guidance, key data interpreted by WindSim found in third party formats are reproduced below. Be aware that the data must be in total compliance with the below examples for a successful conversions. After the conversion a .wws file is placed in the climatology folder in the current project. The climatology data can be viewed and edited in a text editor, see Tools->View climatology data. If you experience any problems using the conversion tools, please send your format to WindSim AS, as the Tools->Convert climatology data will be in continuous development.
Frequency distribution conversion from the WAsP .tab format and from various proprietary formats have been established.
The three first lines contain information about the site name, position, measurement height etc. The fourth line contains the frequency given as a percentage versus sector. The rest of the file contains values for the frequencies according to wind speeds (bins) and directions (sectors). Different scaling can be used in the .tab format, two examples are given below. The first column gives the wind speed, which is assumed to be the upper limit of the speed interval.
Be aware that the positions given in the .tab files often is given in degrees in a geographical coordinate system, whereas the coordinates in the WindSim .wws format requires that the coordinates are in compliance with the coordinate system specified under Terrain in grid.gws, which is a global orthogonal coordinate system.
Extract from .tab file where the sum of the frequencies in each sector is 1000. Comments not found in file are marked with "!".
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Site name 01.01.02 - 31.12.02 ! the first line might contain site name and measurement period, etc.
65.1 59.9 50.0 ! east-west and north-south position, measurement height.
12 1.00 0.00 ! number of sectors ....
3.55 4.97 3.74 4.04 6.70 14.74 17.77 12.67 9.32 9.31 7.38 5.81
1.00 31.99 22.01 32.63 15.43 16.80 5.38 7.11 7.28 11.49 9.68 18.86 21.01
2.00 101.37 67.74 56.22 51.83 27.75 19.99 24.21 26.89 40.43 33.86 59.75 76.07
3.00 180.79 109.88 81.04 66.11 37.48 42.89 41.40 49.91 59.91 43.84 91.14 140.56
4.00 180.49 134.40 99.31 76.69 41.31 57.08 52.69 59.60 58.07 78.50 94.18 140.38
5.00 142.89 121.50 106.15 94.15 40.51 62.52 58.46 73.26 69.99 65.30 102.57 121.82
6.00 113.11 85.80 130.41 105.25 43.86 65.20 67.17 72.58 70.67 81.03 129.91 99.96
7.00 64.67 94.62 117.28 88.59 57.73 59.62 79.85 81.60 86.37 92.73 104.88 78.46
8.00 57.76 85.80 92.17 90.18 63.31 73.82 91.32 87.67 85.68 95.94 79.86 54.02
9.00 27.67 79.13 82.75 77.49 64.43 69.47 88.80 95.68 96.33 96.75 77.11 40.61
10.00 20.46 72.25 63.92 69.55 69.69 80.05 90.00 84.89 84.07 83.21 67.13 35.10
11.00 6.02 54.83 44.23 61.62 77.83 86.57 87.90 71.49 72.51 51.87 43.40 43.00
12.00 12.63 32.47 25.40 51.30 77.51 82.15 72.04 59.18 59.91 49.92 39.93 31.97
13.00 14.14 26.02 23.40 45.49 73.20 73.17 61.22 57.24 49.25 40.40 23.73 31.24
14.00 16.54 10.54 18.26 54.21 80.54 56.79 46.38 50.50 51.77 37.30 19.10 22.97
15.00 9.02 0.86 5.71 23.01 73.52 42.74 38.21 35.41 35.62 33.51 17.36 23.34
16.00 4.21 0.86 5.71 15.07 53.75 38.03 26.68 28.41 25.66 32.02 12.15 14.33
17.00 11.43 0.86 5.71 11.11 44.18 23.18 18.93 21.67 17.64 21.58 12.59 10.84
18.00 3.61 0.43 6.28 1.59 27.43 19.70 17.30 14.67 13.40 19.74 4.63 8.82
19.00 1.20 0.00 0.57 0.79 16.75 13.76 11.42 8.09 5.96 12.39 1.74 4.04
20.00 0.00 0.00 2.28 0.53 5.42 9.42 6.25 4.55 2.52 8.26 0.00 1.10
21.00 0.00 0.00 0.57 0.00 3.83 8.77 4.03 4.05 1.60 5.28 0.00 0.37
22.00 0.00 0.00 0.00 0.00 1.91 4.20 1.44 2.53 1.15 3.79 0.00 0.00
23.00 0.00 0.00 0.00 0.00 0.64 3.11 2.28 0.84 0.00 2.18 0.00 0.00
24.00 0.00 0.00 0.00 0.00 0.32 1.96 1.80 0.67 0.00 0.69 0.00 0.00
25.00 0.00 0.00 0.00 0.00 0.00 0.29 1.86 0.51 0.00 0.00 0.00 0.00
26.00 0.00 0.00 0.00 0.00 0.32 0.14 0.90 0.51 0.00 0.23 0.00 0.00
27.00 0.00 0.00 0.00 0.00 0.00 0.00 0.36 0.34 0.00 0.00 0.00 0.00
28.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
29.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
30.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
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Extract from .tab file where the sum of the frequencies in each sector is not scaled. Comments not found in file are marked with "!".
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Site name 01.01.02 - 31.12.02 ! the first line might contain site name and measurement period, etc.
65.1 59.9 50.0 ! east-west and north-south position, measurement height.
12 1.00 0.00 ! number of sectors ....
2.7 5.5 7.4 7.2 10.5 7.1 7.9 13.4 17.1 11.1 5.9 4.2
1.00 201 481 571 546 809 635 441 279 342 599 296 293
2.00 257 490 709 721 1445 1223 804 573 523 579 541 463
3.00 266 532 636 781 1089 660 741 943 777 697 484 379
4.00 205 408 479 459 720 317 605 1010 925 675 404 298
5.00 102 252 326 326 371 149 365 973 938 555 350 177
6.00 79 128 220 190 139 85 210 808 1047 457 197 121
7.00 26 72 164 66 32 26 104 521 906 360 141 56
8.00 20 16 94 42 9 7 93 372 790 285 88 25
9.00 13 15 39 12 1 0 48 202 557 217 50 15
10.00 3 1 10 8 6 0 17 98 301 151 15 13
11.00 0 0 5 4 0 0 10 49 186 93 7 5
12.00 0 0 0 1 0 0 1 27 81 75 7 0
13.00 0 0 0 0 0 0 0 11 60 47 3 0
14.00 0 0 0 0 0 0 0 4 28 29 0 0
15.00 0 0 0 0 0 0 0 4 15 11 3 0
16.00 0 0 0 0 0 0 0 0 9 14 1 0
17.00 0 0 0 0 0 0 0 0 8 10 0 0
18.00 0 0 0 0 0 0 0 0 1 8 0 0
19.00 0 0 0 0 0 0 0 0 3 0 0 0
20.00 0 0 0 0 0 0 0 0 1 1 0 0
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Conversion between a time history and a frequency distribution can be performed if the time history data is given on the .tws format, see climatology data.
The proprietary format is not for public use. Contact WindSim AS if you need a tailor made conversion utility.