PDF4PRO ⚡AMP

Modern search engine that looking for books and documents around the web

Example: tourism industry

Bench Mark Reset Procedures

Guidelines to preserve elevation data for a soon-to-be disturbed or soon-to-be destroyed Bench markDocumented by Curtis L. SmithNational Geodetic SurveySilver Spring MD 20910 September 2010 Bench Mark Reset ProceduresUnited States Department Of CommerceNational Oceanic and Atmospheric AdministrationNational Ocean ServiceNATIONAL GEODETIC SURVEYG uidelinesBench Mark Reset Procedures1 NATIONAL GEODETIC SURVEYR elocating Vertical Control Bench Marks ..2 Setting a New Bench Mark ..2 Single Mark Level Tie (3rd Order) ..3 Observing Sequence for Optical Leveling Equipment..4 Observing Sequence for Digital Leveling Equipment ..6 When Reference Points Are Required..8 Destroyed Bench Marks ..9 Data Review and Final Adjusted Elevations.

Remove equipment from travel cases, attach level instru-ment to tripod, and let equipment acclimate to local condi-tions, usually about 10 to 15 minutes. Perform instrument collimation check (peg test) per manufacturer’s instructions and record in field notes. 2. Firmly setup and plumb the instrument halfway between

Tags:

  Instruments, Ment, Instru, Instru ment

Information

Domain:

Source:

Link to this page:

Please notify us if you found a problem with this document:

Spam in document Broken preview Other abuse

Transcription of Bench Mark Reset Procedures

Related search queries