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CSB Tools Workshop 2026

Have you considered how your boat's depth soundings could contribute to global databases or local maps? Or how your hardware or software company could support crowdsourced bathymetry (CSB) efforts? If so, and whether you are exploring how to collect and use this data or are already involved in CSB, this workshop is for you!

Publicaciones de la OHI en Español

Circular Letters 2026

Empowering Women in Hydrography

While the number of women in the workforce has risen in recent decades, there remains an imbalance between men and women in leadership positions, and women are still underrepresented in many STEM subjects. To try and change this, the IHO launched the project “Empowering Women in Hydrography” in 2021, with the goal of raising awareness about career opportunities in hydrography, and to increase the number of women in leadership positions.  The most recent study, conducted in early 2026, revealed that since the project's implementation, the percentage of female national hydrographers has increased from 7% to 10.5%. Similarly, the proportion of women chairing IHO bodies has risen from 13% to 32%. Additionally, women now vice-chair 44% of IHO organs.  In 2022 the project was officially endorsed as a UN Ocean Decade Action. 

MEETINGS AND CONFERENCES AFTER 2024

List of ABLOS Meetings and Conferences Note: To access the meeting page, you'll need an IHO Portal account. If you don't have one yet, don't worry! Creating an account is easy. Simply follow the instruction provided at the link here to set up your account and gain access to the meeting page. Click the IHO Portal to get started ABLOS Meetings and Conferences Year Title Venue Date Remarks 2025 32nd ABLOS Business Meeting Doha, Qatar 6 and 9 October 2025 IHO Portal 2025 12th IHO-IAG Advisory Board on the Law of the Sea (ABLOS) Conference PROGRAMME  (For more information and to register, please consult the ABLOS Website) Doha, Qatar 7 and 8 October 2025 ABLOS Website  

Brochure, presentation & videos

The Brochure The IH Brochure provides a brief outline of the activities of the International Hydrographic Organization.  It is written for a wide audience, catering to all those that have an interest in the safe and efficient navigation of ships, protection of the marine environment and more generally to the improvement of the global economy through the provision of hydrographic services and products.  For further information, see IHO Publication M-2. ​ English ​ French      Ocean conservation focus ​ English   French   Spanish   The Presentation The IHO Secretariat has produced a generic presentation that desribes the importance of hydrography.  The presentation can be downloaded and used as needed. ​   Videos Hydrography involves measuring the depth of the water and fixing the position of all the navigational hazards that lie on the seafloor, such as wrecks and rocks. This is done mainly with specialised ships and boats operating echo sounders and sonars, but also using survey aircraft fitted with lasers. Useful information can also be derived sometimes from satellite observations. Hydrography also involves measuring the tide and the currents. The most well-known application of hydrographic information is for making the nautical charts that all mariners use for navigation. Hydrographic information is required for the safe, efficient and sustainable conduct of every human activity that takes place in, on or under the sea. These videos provide information on the importance of hydrography. ________________________________________________________

BSHC27 (2022)

LIST OF DOCUMENTS 27th Meeting  Stockholm, Sweden, 20 - 22 September 2022 Post Meeting Documents: [Photo] [Minutes] [Actions] Updated:   16 November  2022   Document No Document Title BSHC27-Letter1 BSHC27 Letter of Invitation BSHC27-Letter1 Annex 1 Logistic Information  BSHC27-Letter1 Annex 2 Registration Form (pdf version) BSHC27-Letter1 Annex 3 Draft Programme (Updated 07/09/22) BSHC27-Letter1 Annex 4 Hotel reservation at the Scandic Anglais BSHC27_A1.2_List_Documents List of Documents - see this website BSHC27_A1.3_List_of-Participants List of Participants BSHC27_A3_Agenda Agenda for 27th Meeting of the BSHC (Updated 12/09/22) BSHC27_A4.1_BSHC26_Final_Minutes BSHC26 Final Meeting Minutes BSHC27_A4.2_BSHC26_List_of_Actions BSHC26 List of Actions BSHC27_B1_SE Council Report BSHC27_B2_IHO IHO Secretariat Report BSHC27_B4.1_National_Report_Denmark National Report of Denmark BSHC27_B4.2_National_Report_Estonia National Report of  Estonia BSHC27_B4.3_National_Report_Finland National Report of Finland BSHC27_B4.4_National_Report_Germany National Report of Germany BSHC27_B4.5_National_Report_Latvia National Report of Latvia BSHC27_B4.6_National_Report_Lithuania National Report of Lithuania BSHC27_B4.7_National_Report_Poland National Report of Poland BSHC27_B4.8_National_Report_Sweden National Report of Sweden BSHC27_C1 HSSC14 Report BSHC27_C2 Report fo Re-Survey Monitoring Working Group (MWG) BSHC27_C3 Chart Datum WG Report (CDWG) BSHC27_C4 High Denisty Contours in the Finnish ENCs (information paper) BSHC27_C5 Bathy Compilation Workflow in the Finnish HO (information paper) BSHC27_C6 Finnish Sailing Directions New Publication (information paper) BSHC27_C7 Chart On Demand (COD) & Certified Printed ENC (information paper) BSHC27_D1 Status report BSHC Strategic Correspondence Group (CSG) BSHC27_D1_INF Status NHC Strategic work Information Paper BSHC27_D2 Actions requested by IRCC14 BSHC27_D3 IHO-EU Network Report BSHC27_D4 Report of the Baltic Sea Bathymetric Database Working Group (BSBDWG) BSHC27_D5 (Presentation) Report of Baltic Sea North Sea Marine Spatial Data Information Working Group (BSNSMSDIWG)  BSHC27_D6 Report of the Baltic Sea MSI Working Group (BSMSIWG) BSHC27_D7 Report of the BSHC representative to WENDWG BSHC27_D8 Report of Baltic Sea INT Chart Coordination Working Group (BSICCWG) BSHC27_D9 IHO Capacity Building Sub-Committee (CBSC) Issues Review  BSHC27_D10 BSHC Website BSCH27_Presentations Presentations.zip BSHC27_Draft_Actions Draft Actions BSHC27_Draft_Minutes Draft Minutes

A4 Industry Exhibition

A key element of the IHO Assembly is the Industry Exhibition, which provides the private sector with a unique opportunity to showcase their technology and expertise to the global hydrographic community, all in one place.

65th Meeting (2022)

65th Nordic Hydrographic Commission Meeting 26 - 27 April 2022 / Stavanger, Norway   LIST OF DOCUMENTS