Digital Mapping, Charting, and Geodesy Analysis Program (DMAP) Technical Review of Tactical Oceanographic Data Level 4 (TOD4) Associated Performance Specifications, MIL-PRF-89049/14 (15 Mar 2001).

摘要

Tactical Oceanographic Data Level 4 (TOD4) is intended to be a digital replacement for the Hull Integrity Test Sites (HITS) Chart. TOD4 is in the Standard Vector Product Format (VPF) and is designed to be used in conjunction with Digital Nautical Chart (DNC) and TOD2 for complete navigation information. The intended use is to supplement the electronic chart display systems with detailed classified depth and other information to permit the safe surface and underwater navigation and operation of submarines and their escorts during submarine hull integrity tests. The TOD4 is intended for use by military branches of the government.