Definition(s)


MSL

Mean sea level.

Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards

Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards

Source: Deep Water Well Control  Guidlines. IADC Guidelines

Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards

Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards

Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. Global Standards

 

MSL

Arithmetic mean of all sea levels measured at hourly intervals over a long period, ideally 19 years. NOTE Seasonal changes in mean level can be expected in some regions and over many years the mean sea level can change. [ISO 19901-1:2005, definition 3.15].

Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards

Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards

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