Wind and wave, and current dataMete

Wind and wave, and current data
Meteorological extremes likely to be reached or exceeded once, on average, every
50 years, are required as listed below. The provision of one-year and 10-year extremes is also recommended. This information, together with the data in the first two bullet points in 8.3.2 above, is required for the site-specific assessment.

Wind – 1-minute mean at level of 10 metres above MSL (m/s)
Extreme wave height (m)
Extreme wave crest elevation (m) Associated crest-to-crest wave period (sec) Peak period (sec)
Significant wave height (m)
Maximum surface current in downwind direction (m/s) Current profile.

Particular attention shall be paid to the provision of competent data for inshore
sites that may be affected by:

Shelter afforded by proximity of the coastline or shallows
Refracted and/or reflected waves
Breaking waves and surf zones
High velocity tidal currents (>1.5m/s) in the vicinity of sandbanks and narrows
Tidal bores
Wakes from passing vessels, particularly deep-displacement ships and fast craft.

An appropriate bathymetric survey should be supplied for an area approximately
1km2, centred on the proposed site. Line spacing of the survey should typically be not greater than 100m x 250m over the survey area. Interlining should be performed within an area 200m x 200m, centred on the proposed site. Interlining should have spacing less than 25m x 50m. Such surveys are normally carried out using acoustic reflection systems.

Rapid changes in bathymetry shall be anticipated in shallow areas that are subject
to high-velocity tidal currents and/or areas that may have been exposed to severe storm waves. The appropriate period of validity of the survey should be considered in all cases, having due regard for the site characteristics and the anticipated rate
of change indicated by earlier surveys. The survey report should include comment on the anticipated period of validity, plus the magnitude and probability of error resulting from seabed changes.

Navigational charts published for shipping are not sufficiently accurate for
positioning jack-ups; however, up-to-date corrected charts for the transit route, together with the largest available UK Admiralty Navigation charts for the site, are required to be carried on the jack-ups and attending tugs for reference. Paper charts may not be required on jack-ups that are ECDIS equipped and certified for ECDIS use only.

Hasil (Bahasa Indonesia) 1:

Angin dan gelombang, dan data saat iniMeteorologi ekstrem kemungkinan untuk mencapai atau melebihi sekali, rata-rata, setiap50 tahun, diperlukan sebagaimana tercantum di bawah. Penyediaan ekstrem satu tahun dan 10 tahun ini juga dianjurkan. Informasi ini, bersama dengan data dalam dua peluru poin pertama di 8.3.2 di atas, diperlukan untuk menilai spesifik lokasi.Angin-1 menit berarti pada tingkat 10 meter di atas permukaan laut (m/s)Tinggi gelombang ekstrim (m)Ekstrim gelombang crest Associated elevasi (m) gelombang crest-untuk-crest periode (sec) periode puncak (sec)Tinggi gelombang signifikan (m)Arus permukaan maksimum downwind arah (m/s) profil saat ini.Perhatian khusus akan dibayar untuk penyediaan data yang kompeten untuk inshoresitus yang dapat dipengaruhi oleh:Tempat penampungan yang diberikan oleh kedekatan pantai atau air dangkalDibiaskan dan/atau pantulan gelombangBreaking gelombang dan ombak zonaArus pasang surut kecepatan tinggi (> 1.5 m/s) di sekitar sandbanks dan menyempitPasang surut membosankanBangun dari melewati pembuluh, terutama dalam perpindahan kapal dan kerajinan cepat.Sebuah survei batimetrik yang sesuai harus disediakan untuk daerah sekitar1km 2, berpusat pada situs yang diusulkan. Spasi survei biasanya harus tidak lebih dari 100 m x 250 m atas daerah survei. Interlining harus dilakukan dalam area 200 m x 200 m, berpusat pada situs yang diusulkan. Interlining harus memiliki jarak kurang dari 25 m x 50 m. Survei tersebut biasanya dilakukan menggunakan sistem akustik refleksi.Rapid changes in bathymetry shall be anticipated in shallow areas that are subjectto high-velocity tidal currents and/or areas that may have been exposed to severe storm waves. The appropriate period of validity of the survey should be considered in all cases, having due regard for the site characteristics and the anticipated rateof change indicated by earlier surveys. The survey report should include comment on the anticipated period of validity, plus the magnitude and probability of error resulting from seabed changes.Navigational charts published for shipping are not sufficiently accurate forpositioning jack-ups; however, up-to-date corrected charts for the transit route, together with the largest available UK Admiralty Navigation charts for the site, are required to be carried on the jack-ups and attending tugs for reference. Paper charts may not be required on jack-ups that are ECDIS equipped and certified for ECDIS use only.