Series length: winters from 1932 through 1985 during storm season October 1 through March 15.
English translation of the instruction at the beginning of the file:
* Name of place winters 1932 through 1985
* Daan S4-selection of wind setup (minimum 30 cm)
*Storm season october 1 through march 15
* consecutive date (YYYYMMDD), time (HHMM, in MET),
* high tide in cm +NAP, level corrected for 1985 in cm+NAP, wind set up in cm.
* with correction according to indication GWIA-88.236
The period over which the wave climate parameters are available is:
1 January 1979- 31 December 2001
At most of the locations, survey statistics are available from 1979 onwards. At the Euro platform and Scheur west, however, the statistics begin much later, as can be seen from the table below.
In compiling the measured sequences, those approved from the main sensor at each location are used. The disturbances in these sequences (failure, rejected) have been supplemented, where possible, with information from the ancillory sensor. For information that was still missing after that, estimations have been made using the control and validation programme WAVIS98. As wave direction is never registered by the ancillory sensors, many more data are missing from this parameter than from wave heights and wave periods.*
*Detailed information about the net measurement duration of the main sensor, the main sensor supplemented by the ancillory sensor and the estimates can be found at the website of "Wave climate": http://www.golfklimaat.nl/index.cfm?page=uitleg.periode Extreme values:
In addition to wave climates, this website also pays some attention to extreme values for wave heights and wave periods. A statistical technique is presented, to estimate the distribution of these variables. See:
http://www.golfklimaat.nl/index.cfm?page=extremen The following link provides the files (Hmo....mxm, Tmo2....mxm, Tpb....mxm) which include the peaks over treshold for a set of locations at the North Sea.
http://www.hydraulicengineering.tudelft.nl/public/gelder/paper56-data2.zip Data information for these files: Variables: Hmo, Tmo2 and Tpb(peak period)
Series lenth: 1979 through 1993
Owner of the data: State Institute of Coast and Sea- The Hague
The second table gives an overview of the range of wave-measuring instruments present at each location. Since the introduction of the wavec buoy, measurements have been carried out with two sensors at most of the locations. The table shows in chronological order, under the heading 'main sensor', which instrument functioned successively as the only sensor or as the main sensor, and, under the heading 'ancillory sensor', during which period two survey instruments were present at that location and the type of ancillory sensor. If there is more than one sensor, the buoy that measures the wave direction is always the main sensor. The ancillory sensor acts as a back-up in case the main sensor fails.
Owner of the data is the department of Public Works, Transport and Water Management (ministerie van verkeer en waterstaat). The data were downloaded and are available via the website of dr. ir. P.H.A.J.M. van Gelder. The file format is .kls, they can be opened with Wordpad.