FIG Commission 4 - Hydrography


"FIG Commission 4 is focusing on development and recognition of standards of competency, development of technical standards and guidelines, developing and promoting the need to manage our oceans and seas in a sustainable manner, and a comprehensive investigation of plastic pollution at source that is concerning global environmental problem (“Mapping the Plastic”). "

What we do

For the term 2019-2022 FIG Commission 4 will be working on:

For the full work plan, please visit Work Plan 2019-2022
(Original work plan .pdf-format )


Learn more about how Commission 4 is working with the SDG's


FIG e-Working Week 2021

June 2021

Rear Admiral Luigi Sinapi is the International Hydrographic Organization’s Director from 1 September 2020 for a period of six years. Previously, he was the Director of the Italian Hydrographic Institute from October 2015 to July 2020. Rear Admiral Sinapi will be giving a presentation at the FIG e-Working Week 2021 in the technical session’s Oceans and Seas = SDG14 and a Smart Future. The title of his presentation is “Oceans’s Knowledge: the Role of the International Hydrographic Organization in the Incoming Decade”.

Commission 4 at FIG Working Week 2021

August 2021

The Working Week took place online, 20-25 June 2021. Commission 4 held its annual meeting with outset in their prepared Report and Agenda. Commission 3 was also involved in several sessions covering Commission 3 areas within the theme of Smart Surveyors for Land and Water Management. To read more click here.

Commission 4, Chair Elect

August 2021

The General Assembly elected Mr. Malavige Don Eranda Kanachana Gunathilaka from Sri Lanka, SISL, as the Chair Elect of Commission 4, the elected Chair Elect term as the Chair of the Commission will be initiated at the FIG Congress 2022 for the period 2023-2026.


FIG Congress 2022

More information will follow soon.


May 2020

FIG Working (from home) Week 2020 - Proceedings, Read the article

February 2020

FIG Working Week 2020 and FIG Commission 4

April 2019

Commission 4 at FIG Working Week 2019



More News from FIG Commission 4




Work Plans




Working Groups


Key Documents


Meet the officers

Commission Chair

Prof. Dr. Mohd Razali Mahmud, Malaysia
Contact: FIGCommission4 [at]

Working Group Chairs:

Standards and Guidelines for Hydrography (WG 4.1)
Neil Hewitt, Australia

Blue Growth & UN Sustainable Development Goal 14  (WG 4.2)
Gordon Johnston, United Kingdom

Mapping the Plastic (WG 4.3)
Simon Ironside, New Zealand

Marine Development and Administration (WG 4.4)
Dr. Abdullah Hisam Omar, Malaysia

Delegates and Correspondents:

Each member association has the right to nominate a delegate to each of the ten technical commissions. In addition Affiliates, Academic Members and Corporate Members  are welcome to nominate a correspondent to each commission.

Interested? If you are interested to become a national delegate from your country, please contact your member association. The contact information of national delegates is updates by the FIG office. Any changes in contact information should be sent to the FIG Office.


The hydrographic surveying community is using high-accuracy GNSS positioning techniques for vertical positioning of survey platforms, the sea surface and the sea floor. In order to meet required vertical positioning standards, it is of paramount importance that the entire ERS process be thoroughly understood and that the appropriate procedures are in place during data acquisition, validation, cleaning and processing phases. Read the publication In 2019 a Working Group on Mapping the Plastic was established. The Working Group is focusing on the dumping of plastics (and other waste) into major rivers, river systems and deltas at strategic locations around the world. Follow the work of the Working Group
Much like towns and cities which have grown because of their close proximity to railroads, superhighways and airports, access to navigable waters has provided the earliest cornerstone for discovery and economic development the world over. But what makes waters navigable? Read the publication Since 1994, when FIG Publication No. 8, a report entitled Hydrography, Ports and Harbours, was first published, the widespread adoption of the Global Navigation Satellite System (GNSS) and Electronic Nautical Charts (ENC) have brought on notable changes to hydrographic survey technology and how nautical data is published. Read the publication


Term 2019-2022
Term 2015-2018
Term 2011-2014
Term 2007-2010
Term 2003-2006

Working Groups

Term 2019-2022 
WG1.1: International Ethics Standards
WG1.2: Women in Surveying
WG1.3: International Boundary Settlement and Demarcation

All working groups


FIG Publications

FIG Pub. 62: Ellipsoidally Referenced Surveying for Hydrography

FIG Pub. no. 57: Report on the Economic Benefits of Hydrography

FIG Pub. no. 56: Guidelines for the Planning, Execution and Management of Hydrographic Surveys in Ports and Harbours. 

FIG Pub. no. 37: FIG Guide on the Development of a Vertical Reference Surface for Hydrography.

FIG Pub. no. 8: Hydrography in Ports and Harbours


FIG Proceedings

List of FIG Conference Proceedings
FIG Surveyors Reference Library


All events

Reports to General Assembly

Report, May 2020
Report, Hanoi, Vietnam. 2019
Report, Istanbul, Turkey, 2018
Report, Helsinki, Finland, 2017

All reports