FitzRoy's Hydrographic Surveys

Estimated Global Hydrographic Variability

An estimate is made of the three-dimensional global oceanic temperature and salinity variability, omitting the seasonal cycle, both as a major descriptive element of the ocean circulation and for use in the error estimates of state estimation. Historical hydrography, recent data from the World Ocean Circulation Experiment, and Argo profile data are all used. Root-mean-square vertical displaceme...

Experimental Assessment of Achievable Accuracy of GNSS-Derived Heights from Carrier Phase-Based Positioning Techniques for Ellipsoidally Referenced Hydrographic Surveys

Ellipsodially referenced survey (ERS) is considered as one of the challenging issues in the hydrographic surveys due to the fact that the bathymetric data collected by this technique can be readily transformed either to the geodetic or the chart datum by application of some geoscientific models, such as geoid, hydrodynamic and sea surface topographic model. GNSS (Global Navigation Satellite Sys...

Hydrographic Survey Program Assessment Contract

Huddl: the Hydrographic Universal Data Description Language

Resumen Since many of the attempts to introduce a universal hydrographic data format have failed or have been only partially successful, a different approach is proposed. Our solution is the Hydrographic Universal Data Description Language (HUDDL), a descriptive XML-based language that permits the creation of a standardized description of (past, present, and future) data formats, and allows for...

Extraction of Hydrographic Regions from Remote Sensing