First up, improving charts and geodesy for Straits of Florida
Coast Survey welcomed Cuban colleagues to NOAA offices this week, as representatives of Cuba’s National Office of Hydrography and Geodesy (ONHG) traveled to Maryland for the first time since last December. In March, NOAA and ONHG signed a Memorandum of Understanding in Havana.
Cartographers and hydrographers from twelve countries gathered in Maryland last week to participate in a three-day NOAA workshop on evaluating the adequacy nautical charts. During the workshop, they learned techniques to evaluate the suitability of nautical chart products using chart quality information and publicly available information. The participants then generated key layers in adequacy assessments:
Using automatic identification systems (AIS) information to classify navigational routes, they generated a vessel traffic layer.
Comparing satellite-derived bathymetry or other surveys of opportunity with the existing chart, to identify areas that showed significant bathymetric changes, they generated a bathymetric difference layer.
Classifying chart quality information, they generated a hydrographic characteristics layer.
Following up on Coast Survey’s visit to Havana last spring, Cuban hydrographic officials traveled to Maryland on December 15-17, to meet with NOAA National Ocean Service leaders for discussions about potential future collaboration. High on the agenda for Coast Survey is improving nautical charts for maritime traffic transiting the increasingly busy Straits of Florida.
The historic meeting began with Dr. Russell Callender, NOS acting assistant administrator, welcoming the Cuban delegation, led by Colonel Candido Regalado Gomez, chief of Cuba’s National Office of Hydrography and Geodesy.
by Ensign Kaitlyn Seberger, Junior Officer, NOAA Ship Thomas Jefferson
This fall, NOAA Ship Thomas Jefferson has had the pleasure of hosting Sub-Lieutenant Uchechukwu Erege. Sub-Lieutenant Erege, known to the ship’s crew as “UK,” is a hydrographer in the Nigerian Navy Hydrographic Office. The Nigerian Navy Hydrographic Office is the national hydrographic authority for the country and is responsible for conducting hydrographic surveys in territorial waters, ensuring nautical charts are up-to-date, processing bathymetric data, and providing Notice to Mariners for hazards to navigation.
UK joined the Nigerian Navy in 2012 after graduating with distinction from the University of Lagos with a bachelor’s and master’s degree in geoinformatics. He then completed a 10-month training program at the Nigerian Defense Academy before transitioning to his current position in the hydrography branch.
For the 65 years since the U.S. Coast and Geodetic Survey issued the first edition of U.S. Chart No.1 in 1948, mariners have had a standard guide for understanding the symbols, abbreviations and terms used on paper nautical charts. In a major step forward, a new edition of that guide also describes the symbols specified by the International Hydrographic Organization for the display of electronic navigational charts (ENC) on Electronic Chart Display and Information Systems (ECDIS).
Several maritime nations produce their own versions of Chart 1. The U.S. Chart No. 1 describes the symbols used on paper nautical charts produced by NOAA and the National Geospatial-Intelligence Agency (NGA). The new U.S. Chart No. 1 is the first “Chart 1” produced by any country to show paper and electronic chart symbology side by side.
The U.S. and Canada have been surveying in the northern Atlantic Ocean this summer, gathering data to support both countries’ territorial claims under the United Nations Convention on the Law of the Sea (UNCLOS). The survey project started on August 15, and the ship is scheduled to return to Woods Hole, Massachusetts, on September 10.