Hydrography is the branch of applied sciences which deals with the measurement and description of the physical features of oceans, seas, coastal areas, lakes and rivers, as well as with the prediction of their change over time, for the primary purpose of safety of navigation and in support of all other marine activities, including economic development, security and defense, scientific research, and environmental protection.
Hydrographic survey is the science of measurement and description of features which affect maritime navigation, marine construction, dredging, offshore wind farms, offshore oil exploration and drilling and related activities. Surveys may also be conducted to determine the route of subsea cables such as telecommunications cables, cables associated with wind farms, and HVDC power cables. Strong emphasis is placed on soundings, shorelines, tides, currents, seabed and submerged obstructions that relate to the previously mentioned activities. The term hydrography is used synonymously to describe maritime cartography, which in the final stages of the hydrographic process uses the raw data collected through hydrographic survey into information usable by the end user.
The Royal New Zealand Navy is the maritime arm of the New Zealand Defence Force. The fleet currently consists of nine ships. The Navy had its origins in the Naval Defence Act 1913, and the subsequent acquisition of the cruiser HMS Philomel, which by 1921 had been moored in Auckland as a training ship. A slow buildup occurred during the interwar period, and then in December 1939 HMS Achilles fought alongside two other Royal Navy cruisers at the Battle of the River Plate against the German ship, Graf Spee.
The Bathurst-class corvettes were a class of general purpose vessels designed and built in Australia during World War II. Originally classified as minesweepers, but widely referred to as corvettes, the Bathurst-class vessels fulfilled a broad anti-submarine, anti-mine, and convoy escort role.
The Canadian Hydrographic Service (CHS) is part of the federal department of Fisheries and Oceans Canada and is Canada's authoritative hydrographic office. The CHS represents Canada in the International Hydrographic Organization (IHO).
HMNZS Leander was a light cruiser which served with the Royal New Zealand Navy during World War II. She was the lead ship of the Leander class. The ship initially served as HMS Leander in the Royal Navy before her transfer to New Zealand in 1937. In 1945, the ship was returned to the Royal Navy as HMS Leander and was involved in the Corfu Channel incident. The ship was scrapped in 1950.
Admiral John Lort Stokes was a Royal Navy officer who served onboard HMS Beagle for almost eighteen years.
HMNZS Resolution (A14) was a hydrographic ship of the Royal New Zealand Navy (RNZN). Originally the United States Naval Ship USNS Tenacious (T-AGOS-17), the Stalwart-class ocean surveillance ship was used by the United States to locate and track Soviet submarines from 1989 to 1997, when she was transferred to the RNZN for use as a hydrographic survey ship. She served until 27 April 2012. She was subsequently sold to EGS Group, a private surveying company, and renamed RV Geo Resolution.
The Moa-class patrol boat was a class of patrol boats built between 1978 and 1985 for the Royal New Zealand Navy by the Whangarei Engineering and Construction Company. They were based on an Australian boat design.
CSS Acadia is a former hydrographic surveying and oceanographic research ship of the Hydrographic Survey of Canada and its successor the Canadian Hydrographic Service.
The Australian Hydrographic Service is the Australian Commonwealth Government agency responsible for providing hydrographic services that meet Australia's obligations under the SOLAS convention and the national interest; enabling safe navigation, maritime trade and supporting protection of the marine environment. The agency, headquartered at the Australian Hydrographic Office in Wollongong, New South Wales, is an element of the Royal Australian Navy (RAN), and serves both military and civilian functions. The names Australian Hydrographic Service and the Australian Hydrographic Office are commonly abbreviated as AHS or AHO respectively.
Henry Robb, Limited, known colloquially as Robbs, was a Scottish shipbuilding company based at Leith Docks in Edinburgh. Robbs was notable for building small-to-medium sized vessels, particularly tugs and dredgers.
HMNZS Tui, formerly USNS Charles H. Davis (T-AGOR-5), was one of nine Conrad class oceanographic ships built for the United States Navy (USN), that later saw service in the Royal New Zealand Navy (RNZN). Serving with the USN from 1963 to 1970, these ships were designed to perform acoustic experiments on sound transmission underwater, and for gravity, magnetism and deep-ocean floor studies.
HMNZS Endeavour was a Royal New Zealand Navy Antarctic support vessel. She was the first of three ships in the Royal New Zealand Navy to bear that name.
The New Zealand Division of the Royal Navy also known as the New Zealand Station was formed in 1921 and remained in existence until 1941. It was the precursor to the Royal New Zealand Navy. Originally, the Royal Navy was solely responsible for the naval security of New Zealand. The passing of the Naval Defence Act 1913 created the New Zealand Naval Forces as a separate division within the Royal Navy.
HMNZS Philomel is the main administrative base of the Royal New Zealand Navy. Originally a training base on board the cruiser from which it takes its name, it is part of the Devonport Naval Base on the North Shore of Auckland, New Zealand.
HMS Vidal was a survey ship of the Royal Navy. She was designed specifically as a surveying vessel, and was the first survey ship to carry a helicopter. In 1955, a group from Vidal formally annexed Rockall in the North Sea to the United Kingdom.
HMS Rambler was an Algerine-class gunvessel of the Royal Navy, built by John Elder & Co., Glasgow and launched on 26 January 1880. She was commissioned as a survey vessel in 1884 and served in Chinese waters during the 1880s and 1890s. She provided men to a naval brigade during the Boer War and was sold on 23 January 1907. The work of this vessel is now remembered in Hong Kong by the Rambler Channel near Tsing Yi.
HMS Protector is a Royal Navy ice patrol ship built in Norway in mid 2000. As MV Polarbjørn she operated under charter as a polar research icebreaker and a subsea support vessel. In 2011, she was chartered as a temporary replacement for the ice patrol ship HMS Endurance and was purchased by the British Ministry of Defence in early September 2013. As DNV Ice Class 05 the vessel can handle first year ice up to 0.5 metres (20 in).
BRP Ivatan (LC-298) is a Balikpapan-class heavy landing craft operated by the Philippine Navy. One of eight vessels built by Walkers Limited for the Royal Australian Navy (RAN), the ship was commissioned into Australian service in 1973 as HMAS Brunei. During her RAN career, Brunei visited Lord Howe Island, was deployed post-Cyclone Tracy as part of Operation Navy Help Darwin, performed coastal surveys of northern Australia and Papua New Guinea, and served as part of the INTERFET peacekeeping taskforce.
