# Lake Superior Ice at Gauge Station 9004 (lat/long=N46.48/W84.62) # Source: QELP web page # Original Source: National Snow and Ice Data Center: www.nsidc.org # Temp data at Station 205816 (lat/long = N46.20/W85.30) # Source: Unites States Historical Climate Network: http://www.ncdc.noaa.gov/ol/climate/research/ushcn/ushcn.html # season: First year of the ice season, e.g., 1955 is the 1955-1956 season # decade: Decade of ice season # period: Period of ice season (pre-1975 or post-1975). # temp: Mean Dec-Apr temperature for the season # days: Number of days of ice for the season