ITP53 Data Description

The ITP profiler was configured to operate on a standard schedule of 2 one-way profiles between 7 and 750 m depth each day. In the surface package, the GPS receiver was powered hourly to obtain locations hourly, and buoy temperature and battery voltage status were recorded.

The buoy drifted generally southeastward with the Beaufort Gyre circulation for the first 3 months, then migrated generally southward along the 140°W meridian from 77 to 74°N latitude over the next 3 months. Subsequently, the system turned west and managed to maintain the mooring system despite drifting over the Northwind Ridge, then turned back east along 76°N. In July 2012, drift speeds accelerated, peaking at 70 cm/s in early August and shortly thereafter the surface package abruptly ceased transmitting on August 12th. The profiler had continued to transfer data to the surface package until the last buoy transmission.

The plots to the right are of the final, calibrated, edited data (as opposed to the raw data presented on the active instrument pages).

See the Data Products tab to the left for descriptions of the three levels (I, II, III) of data processing and to access all data.

ITP 53 data can also be found at the links below:

Level II hourly buoy location data in ASCII format: itp53rawlocs.dat

Level III 1-Hz processed profile data in MATLAB format: itp53cormat.tar.Z and itp53cormat.zip

Level III 1-db bin-averaged processed profile data in MATLAB format: itp53final.mat
Level III 1-db bin-averaged processed profile data in ASCII format: itp53final.tar.Z and itp53final.zip

Plot of buoy locations.

ITP53 temperature and salinity contours.

Composite plot of ITP temperature and salinity contours.