**Author details**

*Geodetic Sciences - Theory, Applications and Recent Developments*

satellite altimetry and from tide gauges where the latter obtain the trend accounted for the vertical land change (e.g., [10, 67, 68]). The altimetry can further be

*Altimetry-derived global ocean bathymetric map (data downloaded from [53]).*

employed in multidiscipline-based early warning systems such as those forecasting the floods [69], or tsunamis [70], and the other climate-related forecasting systems that lead towards the operational oceanography, i.e., to the forecasting system of the sea-related variables such as sea level, temperature, and currents, based on the long-term routine measurements and real-time observations of the oceans and

Satellite altimetry has proven over the years to be a reliable source of the information on the oceans. Many of the applications of the technology are related to the geodetic tasks, out of which some are almost exclusively reserved for geodesy (such as the gravity field modeling), and some are taking a great part in multidisciplinary research (e.g., as in the climate-related studies). The overview given in this book chapter summarized the theoretical basis of the technology, its evolution, and current developments with insight on the availability of different altimetry data and the ready-to-use altimeter products. The chapter could be a good starting point for diving into the geodetic or related research and practical studies on satellite

**88**

altimetry.

atmosphere (see e.g., [71]).

**4. Conclusion**

**Figure 7.**

Marijan Grgić\* and Tomislav Bašić University of Zagreb Faculty of Geodesy, Zagreb, Croatia

\*Address all correspondence to: mgrgic@geof.unizg.hr

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
