First Survey Commences Under HydroScheme Industry Partnership Program
This week Brisbane-based company iX Blue Pty Ltd mobilised out of Cairns to undertake the inaugural hydrographic survey under Defence’s HydroScheme Industry Partnership Program (HIPP).
This is a Special Order survey to establish three high quality National Reference Surfaces across different depth bands in the vicinity of Cairns, and to enhance the Cairns Area Hydroid model.
‘These Reference Surfaces will be of high value to Navy and the broader geospatial community,’ Hydrographer of Australia Commodore Fiona Freeman said. ‘The Reference Surfaces will allow for the validation of bathymetry acquired by hydrographic survey systems.’ The HIPP commenced on 28 February 2020 to fulfil a 2016 Defence White Paper intention to deliver an ‘efficient combination of military and commercial hydrographic and oceanographic survey capabilities’.
The annual plan of the HIPP survey activities, HydroScheme 2020, is available at www.hydro.gov.au/NHP. ‘The Australian Hydrographic Service has a proud 100-year history of enabling safe navigation and safety of life at sea, and we are looking forward to a new era working together with industry,’ Commodore Freeman said.
Accuracy of depth information in electronic charts
The Australian Hydrographic Office has released a guide for mariners to understand the international rating system used in Electronic Navigation Charts to assist mariners in understanding how good, or not so good, the bathymetry contained within their ENC may be in each differing area, and the associated risks involved.
This is available as a free PDF download from the AHO website as a supplement to the existing edition of the Mariner's Handbook for Australian Waters. Noting that Australian paper charts use the same rating system (but with letters instead of symbols), the information is also useful for those mariners still using paper charts.
Charts for Papua New Guinea
The AHO has been producing nautical charts of Papua New Guinea (PNG) waters since PNG independence over 40 years ago. As part of a maturing relationship between Australia and its South Pacific neighbours, it is time to recognise the level of partnership and cooperation that exists between the AHO and the PNG National Maritime Safety Authority in support of maritime safety, by identifying their charts as ‘PNG’ charts rather than ‘Aus’ charts. This transition is now underway, and is planned for completion by mid-2020.
To keep arrangements clear for mariners, only the national prefix will change during this transition; the individual chart number will remain constant. As part of the transition, the national prefix for Electronic Navigation Charts will similarly change, from AU to PG.
How many paper charts are enough?
The Australian Hydrographic Office is reviewing the ongoing requirement for selected paper charts in areas where there appears to be a high concentration of overlapping charts at similar scales.
Demand for Electronic Navigation Charts (ENC) in Australian waters now exceeds demand for paper charts by around 5 to 1. As this relative demand exceeds the 25% of AHO cartographic resources dedicated to keeping existing paper charts up to date, the AHO now critically reviews the ongoing need for selected paper charts on a case by case basis prior to embarking upon major updates. The current focus of this activity is areas covered by charts at multiple scales that appear to be fulfilling the same purpose, particularly within and near ports.
While this is only likely to result in a relatively small number of permanent withdrawals, these withdrawals will permit the AHO to focus on emerging requirements.
Electronic Chart Services
Did you know that the Australian Hydrographic Office provides a low cost Electronic Navigation Chart (ENC) service for use by vessels operating only in Australian Waters?
The AusENC service contains the same ENC as those made available to international shipping, but at a much lower prices (about $1 each per year when purchased in a coastal pack). The service includes updates every fortnight that users download as a single file following email notification from the AHO. These can then be loaded into any of several commercial Electronic Chart System (ECS) applications running on a laptop or tablet, or a dedicated navigation workstation. For most commercial mariners, ECS performance requirements are quite simple, in turn keeping system costs significantly lower than for a vessel meeting specific SOLAS requirements.
Use of ENC within an ECS allows mariners to see a real time position for their vessel in relation to their charted surroundings, along with larger scales and more detail than is included in paper charts.
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