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Nos Rtk Team Final Report August 31, 2000

By Wong, Cary

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Book Id: WPLBN0000662325
Format Type: PDF eBook
File Size: 315.64 KB.
Reproduction Date: 2005

Title: Nos Rtk Team Final Report August 31, 2000  
Author: Wong, Cary
Volume:
Language: English
Subject: Science., Ecology & environment, National Oceanic and Atmospheric Administration (U.S.)
Collections: National Oceanographic Data Center
Historic
Publication Date:
Publisher: Government Reference Publication

Citation

APA MLA Chicago

Wong, C. (n.d.). Nos Rtk Team Final Report August 31, 2000. Retrieved from http://worldebookfair.org/


Excerpt
Purpose: Upon the recommendation of the National Ocean Service (NOS) Survey Team, a Real-Time Kinematic (RTK) Requirements Team was created. The RTK Requirements Team (?the RTK Team?) was task to document requirements for the application of RTK global positioning system (GPS) technology in support of hydrography, tides, and related NOS navigation missions and programs. The NOS Survey team helped develop a charter for the RTK Team. The charter specifies that the purpose of the RTK Team is to ?investigate and report on applications of RTK GPS to support [chart-quality hydrographic surveying]?2. Here, chart-quality hydrographic surveying (?hydrography?) means meeting, or exceeding, applicable NOS hydrographic survey specifications and International Hydrographic Organization standards. This is the final report of the RTK Team investigations into the use of kinematic GPS methods for NOS hydrography.

Table of Contents
CONTENTS PURPOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 The RTK Team . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 BACKGROUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Differential GPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Kinematic GPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Real-Time and Post-Processed Kinematic GPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 On-The-Fly Kinematic GPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 NOS HYDROGRAPHIC SURVEY SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Basic Minimum Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Horizontal and Vertical Accuracy Budget . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maximum Allowable Horizontal Error for a Sounding . . . . . . . . . . . . . . . . . . . . . 4 Maximum Allowable Vertical Error for a Sounding . . . . . . . . . . . . . . . . . . . . . . . 4 Kinematic GPS Horizontal and Vertical Accuracy Budget . . . . . . . . . . . . . . . . . . . . . . . . 5 Relevant Dynamic Parameters in Vertical Measurement . . . . . . . . . . . . . . . . . . . 5 Hydrographic Accuracy Requirements for Three-Dimensional GPS . . . . . . . . . . 6 Chart Datum Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 KINEMATIC GPS IN HYDROGRAPHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Operational Requirements (RTK, OTF RTK, or Post-Processed techniques?) . . . . . . . . . 7 Survey Scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Maximum Existing Water Level and GPS Control . . . . . . . . . . . . . . . . . . . . . . . . 8 Mid-Level Water Level Datum and GPS Control . . . . . . . . . . . . . . . . . . . . . . . . . 9 Mid-Level GPS and Inadequate Water Level Datum Control . . . . . . . . . . . . . . . . 9 Inadequate GPS and Mid-Level Water Level Datum Control . . . . . . . . . . . . . . . . 9 Inadequate GPS and Inadequate Water Level Datum Control . . . . . . . . . . . . . . . 10 Issues: Benefits & Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Inspiring Field Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 GPS Expedition to Tangier Island, Chesapeake Bay . . . . . . . . . . . . . . . . . . . . . . 11 RECOMMENDATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 ATTACHMENT 1 ? Memo Creating RTK Team . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 ATTACHMENT 2 ? RTK Team Charter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 APPENDIX A ? Glossary of GPS Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 APPENDIX B ? Glossary of Tide Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 BIBLIOGRAPHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

 

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