By Sergio GoncalvesLISBON, July 21 (Reuters) - Alphabet's Google has successfully connected a new transatlantic subsea cable to Sines in Portugal, it said on ‌Tuesday, adding another U.S.-Europe data route as demand for cloud computing and ‌artificial intelligence services surges. Google's Nuvem, named after the Portuguese word for "cloud", links Myrtle Beach, South Carolina, ​with Sines, south of Lisbon, via Bermuda and the Azores. The Nuvem cable system, which spans about 7,000 km (4,350 miles), comprises 16 fibre pairs with a total design capacity of around 384 terabits per second. Subsea ⁠cables form the backbone of the world wide web, carrying more than 95% of global data traffic. Two high-capacity subsea cables already link Portugal with other continents — the Google-owned Equiano ​cable ​that runs to South Africa via other ​African countries, and the EllaLink that ‌runs to Brazil from Sines.