/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: RichardHendren https://cdn.slidesharecdn.com/profile-photo-RichardHendren-48x48.jpg?cb=1522980973 Why we do what we do. Measuring and understanding the unseen layers of the earth satisfies our scientific curiosity; providing you, our client, an accurate picture of the hazards and treasures we discovered hidden within those layers allows you to understand value, and mitigate your exposure to risk at a level impossible before our exploration. What we do. TerraSond provides professional surveying services throughout the world safely, effectively, and economically. Our surveying services include vertical beam and multi-beam sea-floor mapping, side-scan & magnetometer surveys, Global Positioning System surveys, topographic surveys, and conventional surveys. In addition, we provide nau... http://www.TerraSond.com