ASPeCt bridge-based sea-ice observations - 2007 to 2013

The Antarctic Sea ice Processes and Climate [ASPeCt] data sets submitted here have been collected systematically from the bridge of an icebreaker, while it transited through the pack ice. Quantifiable observations of sea ice thickness and related characteristics of the sea ice, snow, ocean and surface atmosphere are recorded hourly while the vessel moves through the sea ice. If the vessel is stopped or has not moved at least 6nm since the previous observation, no observation will be conducted. The observation protocol has been endorsed by the Scientific Commission for Antarctic Research (under their ASPeCt programme) as the preferred method for conducting ship-based observations of sea-ice characteristics. Details can be found in Worby and Allison [1999]
The spreadsheet information below is also included in the word document in the download file.
The relevant spreadsheets (xls files) contain the following information: 
Header name Physical parameter  Unit
Year    Year  
Date    Day/Month/Year
Julian Day  Day of year 
Time (UT)   Time of day in Universal time: Hours/Minutes/Seconds  
Lat (oN)    Latitude    oN
Lon(oE)     oE
Conc    Total ice concentration Tenth
OW  Open-water classification   See Worby and Allison [1999]
c1  Ice concentration of primary ice category   Tenth
ty1 Ice type of primary ice category    See Worby and Allison [1999]
iz1 Thickness of primary ice category   cm
f1  Floe size of primary ice category   See Worby and Allison [1999]
t1  Topography of primary ice category  See Worby and Allison [1999]
s1  Snow type on primary ice category   See Worby and Allison [1999]
sz1 Snow thickness on primary ice category  cm
c2  Ice concentration of secondary ice category Tenth
ty2 Ice type of secondary ice category  See Worby and Allison [1999]
iz2 Thickness of secondary ice category cm
f2  Floe size of secondary ice category See Worby and Allison [1999]
t2  Topography of secondary ice category    See Worby and Allison [1999]
s2  Snow type on secondary ice category See Worby and Allison [1999]
sz2 Snow thickness on secondary ice category    cm
c3  Ice concentration of tertiary ice category  Tenth
ty3 Ice type of tertiary ice category   See Worby and Allison [1999]
iz3 Thickness of tertiary ice category  cm
f3  Floe size of tertiary ice category  See Worby and Allison [1999]
t3  Topography of tertiary ice category See Worby and Allison [1999]
s3  Snow type on tertiary ice category  See Worby and Allison [1999]
sz3 Snow thickness on tertiary ice category cm
Sea Sea-surface temperature oC
Air Surface-air temperature oC

Tags: ACE/CRC, AMD, AMD/AU, ASPECT, ASPECT > Antarctic Sea Ice Processes and Climate, CEOS, CONTINENT > ANTARCTICA, EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE, EARTH SCIENCE > CRYOSPHERE > SEA ICE, EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE DEPTH/THICKNESS, EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE EDGES, EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE EXTENT, EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE FLOES, EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TYPES, EARTH SCIENCE > CRYOSPHERE > SEA ICE > PACK ICE, EARTH SCIENCE > CRYOSPHERE > SEA ICE > SEA ICE CONCENTRATION, EARTH SCIENCE > CRYOSPHERE > SEA ICE > SNOW DEPTH, EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE, EARTH SCIENCE > OCEANS > SEA ICE, EARTH SCIENCE > OCEANS > SEA ICE > ICE DEPTH/THICKNESS, EARTH SCIENCE > OCEANS > SEA ICE > ICE EDGES, EARTH SCIENCE > OCEANS > SEA ICE > ICE EXTENT, EARTH SCIENCE > OCEANS > SEA ICE > ICE FLOES, EARTH SCIENCE > OCEANS > SEA ICE > ICE TYPES, EARTH SCIENCE > OCEANS > SEA ICE > PACK ICE, EARTH SCIENCE > OCEANS > SEA ICE > SEA ICE CONCENTRATION, EARTH SCIENCE > OCEANS > SEA ICE > SNOW DEPTH, GEOGRAPHIC REGION > POLAR, OCEAN > SOUTHERN OCEAN, R/V AA > R/V Aurora Australis, SHIPS, Sea Ice, VISUAL OBSERVATIONS
Organization: Australian Ocean Data Network