Ice Tethered Profiler 68 Data

Data from ITP68 deployed in August 2013

Last buoy status on 2014/9/10 230028 UTC : temperature = -3.22 C, battery = 10.9 V

Plot of ITP Buoy Status

Last position on 2014/9/10 230031 UTC : 78.5978 N, 157.5956 W

Plot of ITP Locations

Last profile (number 682) on 2014/5/3 602 UTC

Last profile mean motor current = 120.6384 mA, mean battery = 10.8356 V

Plot of ITP Profiler Engineering Data

Last profile depth: minimum = 9.2638, maximum = 411.2672 m

Last profile temperature: minimum = -1.5001, maximum = 0.73683 C

Last profile salinity: minimum = 27.894, maximum = 34.7876

Composite Plot of ITP T & S Profiles

Plot of ITP T & S Contours

Last profile dissolved oxygen: minimum = 217.0968, maximum = 328.9811 μmol/kg

Composite Plot of ITP DO Profiles

Plot of ITP DO Contours

Composite Plot of ITP Turbidity & Chlorophyll a Profiles

Plot of ITP Turbidity & Chlorophyll a Contours

Composite Plot of ITP CDOM & PAR Profiles

Plot of ITP CDOM & PAR Contours

Last SAMI IMM transfer on 2014/5/5 13 UTC

Last Microcat sample (number 3366) on 2014/5/4 231528 UTC

Last temperature = -1.5047 C, salinity = 27.9586

Last Optode sample (number 3366) on 2013/12/30 91523 UTC

Last Dissolved Oxygen = 417.4355 μmol/kg

Last SAMI pCO2 sample (number 3366) on 2014/5/4 231517 UTC

Last pCO2 = 531.6032 μatm

Plot of SAMI Data

The raw GPS buoy location data are available in an ASCII file: itp68rawlocs.dat

Depth averaged profiler data files (with interpolated location) and time series SAMI data are available in two formats:

itp68grddata.tar.Z or

ITP68 was deployed on a 2.49 m thick ice floe in the Beaufort Sea on August 26, 2013 at 75 59.3 N, 139 43.2 W as part of the Beaufort Gyre Observing System (BGOS) during the JOIS 2013 cruise on the CCGS Louis S. St. Laurent. On the same icefloe, an Environment Canada Ice Mass Balance Buoy (IMB) and Marlin-Yug Uptempo buoy were also installed. The ITP includes a dissolved oxygen sensor and full biosuite system operating on a pattern profiling sampling schedule including one full one-way profile between 8 and 760 m depth every 1.5 days and a fixed SAMI PCO2 and SAMI pH at 6 m depth. More information on the biosuite sensor package and data handling can be found here .