Subscribe
UPPER GALVESTON BAY, Texas (June 5, 2023) Jasper Schaer, Hydro Survey Team, U.S. Army Corps of Engineers Galveston District,checks a GPS sounding tool prior to beginning a post dredge survey. Calibrating sonar instruments to local water quality is an important part of taking accurate measurements. Sounding measures the speed at which the single beam sonar waves pass through the water. Those sound waves are measured and recorded aboard the survey vessel, Tanner II. When a large ship passes, it disturbs sediment which slows down the sonar signal. With the heavy traffic in the Houston Shipping Channel, Schaer performs frequent sounding checks to ensure precise measurement of dredge material removed. Schaer and other survey crew members like him perform surveys before and after a dredging contract and after dredged sand is deposited offshore. U.S. Army photo by Luke Waack.
| Date Taken: | 06.05.2023 |
| Date Posted: | 06.12.2023 16:40 |
| Photo ID: | 7850854 |
| VIRIN: | 230605-A-XJ740-0017 |
| Resolution: | 6720x4480 |
| Size: | 4.83 MB |
| Location: | GALVESTON, TEXAS, US |
| Web Views: | 16 |
| Downloads: | 5 |
This work, USACE Galveston District hydrography team conducts post dredge survey [Image 12 of 12], by Luke Waack, identified by DVIDS, must comply with the restrictions shown on https://www.dvidshub.net/about/copyright.
Galveston District survey team conducts post dredge survey in Houston Shipping Channel
No keywords found.
