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Leocadia Brightwater-Ansah

Hydrographic Survey Intern
Galveston, TX, United States

Professional Summary

Hydrographic survey intern and marine engineering technology student with hands-on multibeam and single-beam echosounder acquisition along the upper Texas coast. Experienced in Qinsy and HYPACK online acquisition, CARIS HIPS and SIPS processing, tide and sound-velocity corrections, and delivering soundings to NOAA Hydrographic Surveys Specifications and Deliverables (HSSD). Comfortable on small survey launches, safety-first, and quick to turn raw pings into clean, QC'd surfaces and charts.

Employment History

Survey Intern
Gulf Coast Hydrographic Services · Galveston, TX
May, 2025 · Present
Acquired multibeam (Kongsberg EM2040P) and single-beam echosounder data across 38 survey days covering 1,450+ line km in the Houston Ship Channel and Galveston Bay Ran Qinsy and HYPACK online acquisition, monitoring coverage, IMU/GNSS quality and SVP casts; cut infill re-runs 22% through real-time coverage checks Processed 120+ GB of raw data in CARIS HIPS and SIPS: tide and SV corrections, TPU computation, CUBE surfaces and cleaning to NOAA HSSD standards Applied verified NOAA CO-OPS tides and VDatum separation models, keeping crossline agreement within 0.15 m on 95% of comparisons Drafted 9 daily survey reports and 3 Descriptive Report sections, all accepted by the lead hydrographer without major revision
Undergraduate Research Assistant
Texas A&M Galveston Coastal Lab · Galveston, TX
Sep, 2023 · May, 2025
Collected side-scan sonar (EdgeTech 4125) imagery over 26 km² of oyster reef and seagrass habitat in West Bay for a habitat mapping study Built ArcGIS Pro mosaics and benthic classification layers, digitizing 1,800+ targets for the lab's coastal geodatabase Automated sonar file QC with Python scripts, reducing manual review from 6 hours to 1.5 hours per field week Co-authored a poster on post-storm shoreline change presented at the 2024 Texas Bays & Estuaries Meeting
Deckhand (Part-Time)
Pelican Island Marina & Charters · Galveston, TX
Jun, 2022 · Aug, 2023
Handled lines, fueling and docking for 40+ vessel movements per weekend across a 180-slip marina Assisted captains on 60+ bay and offshore charters, completing safety gear checks with zero reportable incidents Performed routine engine, bilge and hull maintenance on a 6-boat charter fleet, cutting unscheduled downtime 15% Trained 4 new seasonal deckhands on knots, line handling and fueling procedures

Education

B.S. Marine Engineering Technology, Minor in Ocean & Coastal Resources
Texas A&M University at Galveston · Galveston, TX
Aug, 2022 · May, 2026
GPA 3.6/4.0 · Dean's List (5 semesters). Coursework: Hydrographic Surveying, Geodesy & GNSS, Marine GIS, Coastal Processes, Marine Instrumentation, Fluid Mechanics.

Skills

CARIS HIPS and SIPS
Qinsy & HYPACK acquisition
Multibeam & single-beam echosounders
Side-scan sonar
NOAA HSSD specifications
Tide & sound-velocity corrections
GNSS/RTK, IMU & VDatum
ArcGIS Pro & QGIS
AutoCAD Civil 3D
Python data QC
Small-boat handling

Courses

STCW Basic Safety Training
Texas A&M Maritime Academy · Galveston, TX
Jan, 2024 · Jan, 2024
Personal survival, fire prevention & firefighting, elementary first aid, personal safety & social responsibility.
TWIC — Transportation Worker Identification Credential
TSA
Mar, 2024
Cleared for unescorted access to secure port and vessel areas.
OSHA 10-Hour Maritime
OSHA Outreach Training
Jun, 2023 · Jun, 2023
Small-Boat Handling Course
Texas A&M University at Galveston · Galveston, TX
Sep, 2023 · Oct, 2023
24 hours of launch operation, man-overboard recovery, trailering and survey-line steering.

Extra-curricular Activities

Project Lead — Galveston Channel Shoal Monitoring
Senior Capstone, TAMUG · Galveston, TX
Jan, 2025 · Sep, 2025
Planned and ran a 3-epoch single-beam survey of a recurring shoal, quantifying 14,000 m³ of sediment accretion over 8 months and recommending a dredge window.
Design Team Member — ROV-Mounted Sound Velocity Profiler
Marine Technology Society Student Section · Galveston, TX
Aug, 2024 · Apr, 2025
Built a low-cost SV logger for $420 in parts that matched a commercial profiler within 0.5 m/s across 30 casts.