U_width,    -5.75,    -5.50,    35.60,    36.30,    12000.0 ! St. of Gibralter
V_width,    28.75,    29.50,    41.10,    41.30,     5000.0 ! Bosphorus St.
U_width,    26.50,    26.80,    40.00,    40.70,     5000.0 ! Dardanelles