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Description of Data Files

Permafrost, palsas and frost-crack polygons, Salluit, Quebec, Canada: Temperature conditions for ice-wedge cracking

Missing data indicated by 6999.00
All temperatures in degrees C
All wind speeds are in meters per second

Location: Salluit, northern Quebec

• File: sal1.dat
• Time period: From 12 July 1989 to 31 December 1989
• Columns: date,month,time,julian date,wind speed ,wind direction,air temperature, soil temperature(3m)
• Format: dd,mm,hh,nnn.nn,nnnn.nn,nnnn.nn,nnnn.nn

• File: sal2.dat
• Time period: From 12 july 1989 to 31 December 1989
• Columns: date, month, time, julian date,T6N(0.08m), T7R(0.55m), T7N(0.58m),T8R(1.05m), T8N(1.08m), T9N(1.58m), T11R(2.55m), T11N(2.58m), Temperature inside data logger, Resistance values along cracking detection circuit
• Format:dd,mm,hh,nnn.nn,nnnn.nn,nnnn.nn,nnnn.nnn,nnn.nn,nnnn.nn,nnnn.nnn,nnn.nn,nnnn.nn, nnnn.nn,nnnn.nn

• File: sal3.dat
• Time period: From 1 January 1990 to 1 July 1990
• Columns: date,month,time,julian date,wind speed ,wind direction,air temperature , soil temperature(3m)
• Format: dd,mm,hh,nnn.nn,nnnn.nn,nnnn.nn,nnnn.nn

• File: sal4.dat
• Time period: From July 1 1990 to 22 September 1990
• Columns: date,month,time,julian date,wind speed ,wind direction, air temperature, soil temperature(3m)
• Format: dd,mm,hh,nnn.nn,nnnn.nn,nnnn.nn,nnnn.nn

• Files: sal5_1b.dat and sal5_3b.dat
• Time period: From 1 January 1990 to 22 September 1990
• Columns: date,month,time,julian date,T6N(0.08m), T7R(0.55m), T7N(0.58m), T8R(1.05m), T8N(1.08m), T9N(1.58m), T11R(2.55m), T11N(2.58m), Temperature inside data logger, FENTES
• Format:dd,mm,hh,nnn.nn,nnnn.nn,nnnn.nn,nnnn.nnn,nnn.nn,nnnn.nn,nnnn.nnn,nnn.nn,nnnn.nn, nnnn.nn,nnnn.nn
• Comments: Two files are due to the presence of a gap between 22 September 1990 to 29 December 1990 at 18:00 due to equipment malfunction

• File: sal6.dat
• Time period: From 18:00 on 29 December 1990 to 30 April 1991
• Columns: date, time, wind speed , wind direction, air temperature , soil temperature(3m)
• Format: dd/Mon/yy,hh,nnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn

• File: sal7.dat
• Time period: From 1 May 1991 to 21 August 1991
• Columns: date, time, wind speed - m/s, wind direction, air temperature, soil temperature(3m)
• Format: dd/Mon/yy,hh,nnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn

• File: sal8.dat
• Time period: From 20:00 on 29 December 1990 to 21 August 1
• Columns: date, time, julian date, T7R(0.55m), T8R(1.05m), T11R(2.55m), T6N(0.08m), T7N(0.58m), T8N(1.08m), T9N(1.58m), T11N(2.58m), FENTES, Temperature inside data logger
• Format: dd/Mon/yy,hh,nnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn, nnnn.nn,nnnn.nn

• File: sal9.dat
• Columns: Date, Tair, Tair-back, Var.-T, Time-hrs, Rate-T, T8cm, T8cm-back, Var.T, Time-hrs, Rate-T, T58cm, T58cm-back, Var.-T, Time-hrs, Rate-T, T108cm, T108cm-back, Var.-T, Time-hrs, Rate-T, T158cm, T158cmback, Var.T, Time-hrs, Rate-T, T258cm, T258cmback, Var.-T, Time-hrs, Rate-T
• Format: mm/dd/yy,nnnn.nn,nnnn.nn,nnnn.nn,nnn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn, nnn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnn,nnnn.nn,nnnn.nn,nnnn.nn, nnnn.nn,nnn,nnnn.nn,nnnn.nn,nnnn.nn,nnnn.nn,nnn,nnnn.nn,nnnn.nn, nnnn.nn,nnnn.nn,nnn,nnnn.nn