In two previous articles published as Notes in the International Hydrographic Review (IHR) No.25 and No.23 the topics of “What’s Hydrospatial?” (Hains, 2020) and « So… What is Hydrospatial ? » (Hains & al, 2021), it was suggested to use the new term Hydrospatial as the expansion of hydrography in the context of a sustainable growing Blue Economy. The authors continue to stress and will continue to reaffirm that Hydrospatial is not a replacement for hydrography, it is broader and an expansion of it beyond the realm of sea navigation. The authors have no intention to have hydrography being replaced as a term. The term Hydrospatial is intended to provide a refinement of the concept of Geospatial in the context of the aquatic environment.
“Hydrography” is, and will remain, the foundation of the Hydrospatial and continues to be a very relevant term and field of science. More articles and information have been published to clarify Hydrospatial and to define it better. In the momentum of exploring the benefits of using the term Hydrospatial to better address geospatial in the water, a global movement of volunteers has been established to generate discussion and advocate the applications of the term Hydrospatial, which could be simply described as the blue geospatial environment.