USM Hydrographic Science 2004 Class Field Project Upper Pearl River Survey 15 June – 30 July 2004

USM Hydrographic Science2004 Class Field Project

Upper Pearl River Survey15 June – 30 July 2004

30 July 2004 USM 2004 Upper Pearl Survey

Special Thanks

• USM Faculty and Staff• Prof David Wells • Prof Stephan Howden• “The Man” David Dodd• “Tech Genius” Erik Quiroz• CAPT Marshall Smith –

NAVO

• Clay Whitaker - NAVO• Art Najjar – NAVO• George Oliver - NAVO• NAVO Instructors and

techs• Roy Johnson – USGS• Karl Rhymas - QTC


Outline

Introduction – Todd• History - Todd• Preparation activities: Existing control - Todd• Preparation activities: HSS - Todd• Preparation activities: Tides - Jennifer• Preparation activities: Skiff Line building - Rafael• Preparation activities: Skiff Calibrations - Dan• Preparation activities: Data management - Chad• Preparation activities: Bertram Calibrations - Brad • Execution: Bertram General setup, Primary equip, Logistics – Brad• Execution: Skiff General setup, Primary equip, Logistics - Dan• Execution: Ancillary observations - James


Outline (cont.)

• Processing: GPS - Debbie• Processing: Multibeam – Katie• Processing: Single-beam and Side-Scan – Chris• Processing: Navaids positioning - Rafael• Processing: Vertical Uncertainty Management – Bugser• Processing: Horizontal Uncertainty Management - Debbie• Products: Digitize shoreline - Debbie • Products: Field Sheets – Katie• Products: Field Chart – Dan• Products: ENC - Debbie• Products: HPD – Rafael• Products: Fly Through - Chad• Products: ROS - Todd• Conclusion - Todd


Purpose

• Why conduct this particular survey? – Provide practical experience to cement

theoretical knowledge– Extend USM’s dataset from the I-10

bridge northward– GET A DEGREE!!!


History

• Site Selection– Potential sites selected during Dave

Dodd’s, Hydro Data Mngt Course• Upper Pearl (I-10 to SSC)• Lower Pearl (Hwy 90 to St. Joe’s Pass)• Bayou Caddy/St. Joe’s Pass

– Upper Pearl selected for:• Complexity• Proximity to SSC• Data uses (USM, NAVO, SBT)


Survey Area

I-10

SSC


Primary Survey Equipment

• Equipment:– Bertram (EM3000 MB, Klein 3000 SSS,

Seabird CTD, POS M/V)– USM Skiff (Knudsen 320MP single-beam,

Marine Sonic SSS (150, 300 KHz), Digibar Pro (SVP), Trimble MS 860 (WAAS Enabled)

– Positioning (Ashtech Z-Xtreme in PPK mode)

– Tides (Sutron 8210 (2), OTT)– Ancillary (Bottom Grab, Secchi disk)


Existing Data

• Imagery (Louisiana Atlas, MARIS)• MARIS data (rivers, roads, etc)• Census Data• Chart (11367, 32nd Ed, July 2003)


Preliminary Planning

• Gathered existing data/Conducted interviews• Selected HIC, Party Chiefs and SME’s• Determined timelines and milestones

– Two weeks of data collection, processing and presentation preps.

• Determined data collection priorities– Soundings– ATONs– Contacts– Shoreline– Grabs and Secchi


Existing Control

• Geodetic: USM1, Dead End• Tidal: I-10 (1960-1978 EPOCH)


Hydrographic Survey Specification USM2004-01

• Initially written during HYD608

• Group 2’s HSS selected as most complete, updated by group at the beginning of the survey.

• Final HSS: USM2004-01


HSS: Major Sections

• Append 2: Tidal Data– 3 Tide Gauges (SBT Quaywall, Hancock

Pier, I-10)– 30 days of data collected – Weekly observations– Reduce soundings to MLLW

• Append 3: Wreck List– No known wrecks


HSS: Major Sections

• Append 4: Geodetic Data– Data referred to NAD83 (equivalent to WGS84 for

charting)– Landmarks referenced to NAVD88– PPK positioning (Order 1 accuracy)

• Append 8: Specific Charting Info. Requirements– All soundings, ATONS, and shoreline features will be

delineated to Order 1 standards– All Landmarks within visual site of the river will be

positioned– All Aids to Navigation will be located and described– Report discrepancies for Aids to Navigation to the local

U.S. Coast Guard District (District 8)


HSS: Major Sections

• Append 9: Oceanography– Sound Speed

• CTD casts will be taken 3 X daily aboard the Bertram• SVP casts will be taken 3 X daily aboard the Skiff• SVP corrections will be applied onboard for Bertram

and within CARIS for the skiff

– Multibeam• 10 % overlap required

– Single-beam• 25 m line spacing for development lines and 250m line

spacing for cross-check lines

– Ancillary data: Secchi and bottom grab data will be collected daily

Preparation Activities:Tides and Leveling

Jennifer Wozencraft


Report of Survey

– Modeled after template provided by Lcdr. Don Ventura, Royal Navy.

– ROS broken into many sections. Sections written by the SME’s.

– Written during and after data collection and processing.

ROS FormatTABLE OF CONTENTS

Chapter Page1. Introduction - Todd2. Geodetic Control - Debbie3. Digital Surveying System - Dan4. Sonar - Chris5. Calibrations - Chad6. Hydrography (Bathymetry) - Rafael7. Oceanography - Dan8. Geophysical - Brad9. Sailing Directions and Nomenclature - Katie10. Tides, Tide Gages and Sounding Datum - Jennifer11. Tidal Streams and Currents - Jennifer12. Seabed Topography and Texture - James13. Charted and Uncharted Wrecks and Obstructions - Brad14. Charted and Uncharted Lights, Navaids, Buoys and Piers - Rafael15. Coastline, Topography, Measured Distances, Conspicuous Objects and Fixing Marks - Katie16. Ancillary Observations - James17. Accuracy of Soundings - Bugser18. Positional Accuracy - Debbie19. Summary/Closing Remarks - Todd20. Accompanying Forms, Files and Documents - Chad


Conclusion

• Survey area was CHALLENGING– Next time we will take the harbor

• Maximum Group Effort• Avoided the dangers

– Snakes– Alligators– Poison Ivy