What is Hydrography? – NOAA Hydro Training 2012 Surveying Puget Sound, 1927 What is Hydrography?

What is Hydrography? – NOAA Hydro Training 2012 What is Hydrography? International Hydrographic Organization (IHO) Definition: ‐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. (14 September 2011,

What is Hydrography? – NOAA Hydro Training 2012 (USM and UNB Intro to Hydrography, GGE1001) Three Aspects Coastal Hydrography is concerned with the development of ports and harbors, coastal erosion problems, the utilization of harbor and coastal conservation services and, especially, the safety of navigation in coastal waters. Off-shore Hydrography is concerned with ‐The provision of hydrographic data as an extension of the coastal zone normally encompassing the continental shelf ‐The development of mineral deposits, including hydrocarbons ‐Provision of data for fisheries management Oceanic Hydrography is concerned with the acquisition of hydrographic data in the deep ocean areas for the depiction of sea-floor geomorphology.

What is Hydrography? – NOAA Hydro Training % of the Earth surface is covered with water, yet only about 10% of the seafloor has been surveyed by echo sounders at a resolution of 1 minute or better. –IHO, 2011 Why Hydrography is Important

What is Hydrography? – NOAA Hydro Training Million Square Nautical Miles NOAA’s Charting Responsibility

What is Hydrography? – NOAA Hydro Training 2012 Critical Areas and Priorities NOAA Maintains approximately 1,000 nautical charts encompassing U.S. Territorial waters and the EEZ ‐Nearly 50% of all soundings on current charts were acquired utilizing leadlines prior to 1940 These areas are prioritized into categories: ‐Critical Areas; ‐Emerging Critical Areas ‐Resurvey Areas ‐Priority Areas »Divided into Priorities from 1 to 5 Leadline Sounding Operations C&GS, 1928 NOAA Hydrographic Survey Priorities, 2011

What is Hydrography? – NOAA Hydro Training 2012 Critical Areas and Priorities Prioritized by the following factors: ‐Shipping Tonnage and Trends ‐Vintage of Surveys in the Area (Year, Equipment, Process) ‐Under-keel Clearance of Vessels ‐Potential for Unknown Dangers to Navigation due to dynamic bottom or human influence ‐Requests for surveys from Pilot’s Associations, the U.S. Coast Guard, and the Marine Community through NOAA’s Regional Navigation Managers NOAA Hydrographic Survey Priorities, 2011

What is Hydrography? – NOAA Hydro Training 2012 Critical Areas and Priorities Of the 43,000 SNM identified as Critical in 1994, only 14,980 SNM remains Nationally, 36,545 SNM of modern, Full Bottom Coverage completed since 1994 NOAA, through ships and contractors, survey approximately 1,300 – 1,600 SNM per year with existing resources and funding levels NOAA Hydrographic Survey Priorities, 2011

What is Hydrography? – NOAA Hydro Training 2012 Who is Responsible

What is Hydrography? – NOAA Hydro Training 2012 Why do we survey? Emma Mærsk ‐Length: 1,302 ft ‐Beam: 184 ft ‐Draught: 51 ft Bigger, Taller, Longer Ships

What is Hydrography? – NOAA Hydro Training 2012 Hydro & Homeland Security The Oceanographer of the Navy requested NOAA to provide side scan sonar imagery of shipping channels and harbors to the Naval Oceanographic Office (NAVO) ‐NOAA collected data at 34 strategic commercial ports ‐NAVO collected data at 14 military ports ‐NAVO processes and stores data This data is used as a baseline for comparison Klein 5000 Side Scan Sonar Detailed Side Scan Sonar Imagery

What is Hydrography? – NOAA Hydro Training 2012 Hydro & Homeland Security If a threat condition occurred, the Navy will use the baseline data of pre-existing objects so they can search for new objects, utilizing mine counter-measure assets more effectively to determine if a mine has been placed on the seafloor.

What is Hydrography? – NOAA Hydro Training 2012 Leadline Single Beam Multi Beam Pre Present Bottom Coverage by Survey Method

What is Hydrography? – NOAA Hydro Training 2012 Shallow Water Multibeam Direct measurement of Depth Multibeam sonar systems are rigidly attached to the survey vessel Less swath width than Side-Scan Project: OPR-O190-RA-11

What is Hydrography? – NOAA Hydro Training 2012 Side-Scan Sonar Underwater Imagery ‐Although depths can be correlated, not a direct measurement Used to look for features ‐Features will be surveyed with Multibeam Side-Scan “Towfish” are towed behind the survey vessel Very wide coverage swath Side-Scan Image of USS Monitor

What is Hydrography? – NOAA Hydro Training 2012 Hydro Types Ship’s Multibeam Side Scan Sonar

What is Hydrography? – NOAA Hydro Training 2012 NOAA Hydrographic Fleet Thomas Jefferson Norfolk, VA 1992 Rainier Newport, OR 1968 Fairweather Ketchikan, AK 1968 / 2004 R/V Bay Hydro II Solomons, MD Navigation Response Teams (NRT’s) Six Teams, Nationwide

What is Hydrography? – NOAA Hydro Training 2012 Nancy Foster Ronald Brown Oscar Dyson Hi’ialaki Gloria Michelle Henry Bigelow Okeanos Explorer Bell M. Shimada Pisces Other Hydro-Capable NOAA Vessels

What is Hydrography? – NOAA Hydro Training 2012 NOAA’s Navigation Services: Nautical Charting Nautical Charts ‐1,000 Paper Charts ‐998 Print-on-Demand ‐380 Electronic Navigation Charts (ENCs) Coast Pilot ‐Nine Volumes encompassing U.S coastal and intracoastal waters Notice to Mariners ‐Provides Updates for all charts and Coast Pilots

What is Hydrography? – NOAA Hydro Training 2012 NOAA’s Navigation Services: Navigation Response Teams (NRT’s) Small teams located around the country ‐NRT-1; Gulf of Mexico ‐NRT-2; Southeast ‐NRT-3; Northwest ‐NRT-4; Great Lakes ‐NRT-5; Northeast ‐NRT-6; Southwest Highly mobile units providing site surveys and rapid disaster response

What is Hydrography? – NOAA Hydro Training 2012 Nautical Charts National Spatial Reference System Hydrographic Surveys Research and Development Models and New Technologies Real Time Tides and Currents Products for Safe Navigation

What is Hydrography? – NOAA Hydro Training 2012 The End