jointly produced by Naval Oceanography Command Detachment Asheville, USAFETAC OL-A, National Climatic Data Center ; prepared under authority of Commander, Naval Oceanography Command
National Ice Center ; Naval Meteorology and Oceanography Command, [Fleet Numerical Meteorology and Oceanography Detachment] ; U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, [National Climatic Data Center]