COVER STORY
Bathymetric
mapping underwater terrain
O
ne of the most important tasks of a bathymetric survey is characterizing a site, or a portion of a site, by taking measurements of its depth. This technique is an excellent way to map the bottom of a lake or ocean before remediation activities are begun. It can also help determine the transience of bottom sediments, and the efficacy of dredging operations. Bathymetric surveying is an advanced method for mapping underwater terrain and determining water depth. It is an excellent way to identify submerged vegetation and habitat, and can be used by scientists to make accurate maps. Despite its complexity, bathymetric surveys are easy to perform. Many companies use different tools to perform bathymetric surveys. The first step in this process is choosing a boat. Small boats are best for shallow areas, while larger vessels can be necessary to survey larger regions. In addition to establishing the depth of water, bathymetric surveys are useful for dredging projects. It establishes the contours of the seafloor, which can help with dredging tool selection. The results of bathymetric surveys also provide a baseline for measuring the dredging tools' accuracy and environmental impact. This type of survey can be very helpful for land development projects as well, and can help you determine features of an area's bottom.
Image credit: Hexagon
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May-June issue l 2022
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