She said the city should "comprehensively look for leaking ballasts and if you find them, remove them right away".
The new strategy streamlines the process of looking for leaks by pairing methane-sensing equipment with Google cars.
"We anticipate this will be important when looking for leaks in complicated or obscured infrastructures such as processing plant, drilling rigs and pipelines".
Seaman Apprentice Nemeth, 19, in the Navy for 16 months and on board the Cole for 10, went to the engine room, where he worked, and took a quick tour, looking for leaks and sweeping up debris.
It also watermarks the files, as well as providing link-scanning software that trawls the internet looking for leaks and firing off automatic takedown notices if it finds any.
"Everyone thought it was groundwater, but I grew up with men crawling on all fours with stethoscopes looking for leaks in the radiant floor heating," he said, noting that radiant heating was a postwar fad.
One would look in vain for a Spanish or French naval officer who crept around his ship looking for leaks, heaved on the ship's capstan, strained his hand by "hauling of a rope" or loaded special food for his men.
Small, remotely operated submersible vehicles with sonar were also looking for leaks, but the UNH-NOAA team surveyed the entire area at one time.
Check under sinks, toilets and along the water lines in your basement looking for leaks.
Kent Wells, a senior vice president of BP, said the company was watching the seafloor with cameras on robotic submersibles and using sonar and other equipment to look for leaks.
