Global Ocean Forecast System V3.0 Validation Test Report Addendum: Provision of Boundary Conditions to the Relocatable Navy Coastal Ocean Model (NCOM).

摘要

One of the primary functions of the Global Ocean Forecast System (GOFS) Version 3.0 (V3.0) consisting of the 1/12 deg global HYbrid Coordinate Ocean Model (HYCOM) that employs the Navy Coupled Ocean Data Assimilation (NCODA) is to provide boundary conditions (BCs) to higher horizontal and vertical resolution regional nested ocean models, such as the Relocatable (Relo) Navy Coastal Ocean Model (NCOM). This document can be viewed as both a User's Manual and an addendum to the GOFS V3.0 Phase II boundary condition validation work. As such, the dual methodology for extracting GOFS V3.0 BCs is documented. Secondly, it describes a set of experiments in which BCs extracted from the real-time GOFS V3.0 have been remapped to 40, 50, or 100 vertical levels, and these are used with corresponding versions of Relo NCOM configured for the region off the New Jersey coast. The sensitivity of the vertical resolution is examined with regard to error analyses of temperature (T) vs depth and acoustical proxy measures (i.e., mixed layer depth (MLD)), sonic layer depth (SLD), below layer gradient (BLG), and deep sound channel (DSC).