World Hydrography Day 2024 - Photo Contest!

Who we are? | What we do?

The Hydrographic Society of America (THSOA) is a 501(c)3 non-profit organization committed to promoting education in hydrography, inshore surveying, inland waters surveying, offshore surveying, positioning and mapping/charting, including related earth sciences.

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What is Hydrography?

The S-32 IHO Hydrographic Dictionary defines hydrography as "the branch of applied sciences which deals with the measurement and description of the physical features of oceans, seas, coastal areas, lakes and rivers, as well as with the prediction of their change over time, for the primary purpose of safety of navigation and in support of all other marine activities, including economic development, security and defense, scientific research, and environmental protection."

At THSOA, we celebrate everyone in the hydrographic community:  licensed hydrographers, bathymetric surveyors, students of ocean sciences, and anyone dedicated to foster public awareness and promote better education of persons engaged in the study of hydrography.

The Benefits of Membership

THSOA welcomes all members in and around the hydrography and hydrospatial communities. Our goal is to meet, correspond, promote, encourage, and coordinate the study of hydrography and other sciences in related fields.

We offer our member community networking opportunities; educational outreach; news and information in the industry; and professional development through involvement in our local chapters and professional committees.

Join our community of professionals, students, and industry leaders who are passionate about the future of hydrography.

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Join our Events

THSOA is dedicated to providing opportunities for our members and community to network and learn more about hydrographic sciences and services. We offer in person events throughout the USA and Latin America as well as online webinars.

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Looking for a Career

Our members have access to an online job board to upload their resumes or post jobs from their organizations. 

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