Wind Speed Sample Clauses

Wind Speed. The exchange of gas or gas transfer velocity is dependent on the wind speed at the air-water interface. If the wind speed is over 3 m/s it will excite the release of dissolved gases from the water.

Wind Speed. Notwithstanding anything contained in this Agreement, the Seller shall not be liable for any delay in conducting or continuing all or any Commissioning Tests, to the extent that the Engineer certifies that such delay arises from the non availability of wind having the characteristics which are necessary to conduct and continue the Commissioning Tests and in such event the Required Commercial Operations Date shall be extended on a day-to-day basis to fully reflect the delay caused by the non-availability of such wind characteristics.

Wind Speed. For practical assessment, it is convenient to use a unified wind speed-wave height relationship (perhaps different for the open sea and coastal areas) rather than use wind speed as an additional standard. The problem in the derivation of such a unified relation is that the relation between wind speed and wave height strongly depends on the fetch, wind duration and relation between the wind sea and swell. Because these factors depend on location, the relation between the wind speed and wave height is location dependent, even when considered in a statistical sense. The well-known semi-empirical formula by Xxxxxxxxxxxxx for the wind sea (taken from Xxxxxx, 1999), h  0.243 vw th0.011 gF / v2 , 2 s g w (1) where F , m, is the fetch length, and wind speed vw is assumed at 10 m height above the free surface, gives for the unlimited fetch (open sea) an expression h  0.0248v2 , or vw  6.354 hs , (2) denoted as Unlimited Fetch in Figure 3. This figure shows also a recommendation for the wind speed-wave height relationship for fully developed seas in the open areas according to NATO (1983), denoted as STANAG 4194, and hindcast data for two open-sea locations, West Shetland (generated by Oceanweather Inc. for the period from 1988 to 1998) and South-East of Iceland (generated by MET Norway for the period from 1955 to 2009, denoted SE Iceland). Both these locations are characterised by severe wind and are strongly affected by swell, representing typical North Atlantic met-ocean climate. The semi-empirical relation (2) agrees well with the hindcast data for both locations and provides slightly conservative estimation of the required wind speed for a given significant wave height, which might be due to the presence of swell in the hindcast data, which increases wave heights at moderate wind speeds and has less influence at greater wind speeds. The recommendation NATO (1983) agrees well with the semi- empirical formula at moderate wind speeds, but under-estimates wave heights at wind speeds greater than 12 m/s. Formula (2) is recommended by SHOPERA for the open sea. For coastal areas, the influence of limited fetch for offshore wind can be very significant. Figure 4 shows wind speed as a function of significant wave height for 10, 20 and 30 miles fetch in comparison with the relation (2) for unlimited fetch (denoted as Unlimited Fetch). For comparison, the wind speed-wave height relationship is shown also according to the following sources:  2013 Interim Guidelines f...