Update to the IHO-IOC GEBCO Cook Book

Imagery from Chapter 16 of the IHO-IOC GEBCO Cook BookNews and events — September 2018

An updated version of the IHO-IOC GEBCO Cook Book is now available from web pages hosted at the National Oceanic and Atmospheric Administration (NOAA) Laboratory for Satellite Altimetry.

The Cook Book is a technical reference manual on how to build a bathymetric grid. It was created with the aim of supporting and encouraging further participation in bathymetric grid development work. It was first released in October 2012.

This release includes the following additions.

New chapter added: Chapter 16.0 Finding Gaps to Map

This chapter presents two visualisations to help identify gaps in sounding coverage of the ocean floor as well as a GIS method for prioritising how to fill the gaps. It includes the following sections:

  • 16.1 - Google Earth Pro and SRTM30_PLUS Overlays; Contributors: David Sandwell, Scripps Institution of Oceanography, USA and Karen M. Marks, NOAA Laboratory for Satellite Altimetry, USA
  • 16.2 - Assessing Gaps via Bathymetric Sounding Density; Contributors: Meredith Westington, NOAA Office of Coast Survey, USA and Jesse Varner, NOAA National Centers for Environmental Information, USA
  • 16.3 - A GIS Approach to Prioritizing the Gaps to Map; Contributors: Jennifer Jencks, NOAA National Centers for Environmental Information, USA and Anne-Cathrin Wölf, GEOMAR Helmholtz Centre for Ocean Research, Germany

Find out more

Cook Book

GEBCO Overview

GEBCO grid



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