User's Guide for Writing Bench Mark Descriptions. Updated January 2003

摘要

This document provides specifications for writing the descriptive text used (1) to locate a water level station site (TO REACH statement), (2) to recover an individual bench mark, and (3) to write bench mark descriptions as needed for CO-OPS' Published Bench Mark sheet. In general, tidal bench mark descriptions shall be written in accordance with the guidance provided in this document, while Great Lakes bench mark descriptions follow the NGS Bluebook specifications exactly. Refer to User's Guide for Writing Bench Mark Descriptions for Electronic Levels, updated January 2003, if electronic levels are used for installing, connecting, or recovering bench marks.