The Winter-Spring (WISP) Project January 1975–May 1975

The Winter Spring Project was sponsored by the United States Department of Energy Contract EY-76-S-06-2225 TA25 to Drs. B. Hickey & J. Dungan Smith at the University of Washington. It was also funded by the National Science Foundation (NSF), DES 74-22631, OCE 76-21508, and OCE 77-0879. This was a joint project with Drs. Bob Smith and Jane Huyer at Oregon State University and included measurements made by scientists at the Institute of Ocean Sciences, Patricia Bay, Canada.

The University of Washington maintained 5 current meter moorings, Destruction Island (DI), Westport Inshore (WIS), Westport Offshore (WOS), Columbia River Inshore (CRIS), and Slope (SL), from Jan. 11, 1975 through May 6, 1975 off the Washington coast. Moorings at WIS and CRIS were deployed twice. None of the moorings lasted the full length of the project. Results from this project are discussed in: Hickey, B.M., 1981, Alongshore Coherence on the Pacific Northwest Continental Shelf (January–April, 1975), Journal of Physical Oceanography, 11(6), pp. 822–835.

Current meters were a mix of Aanderaa (AA) and Braincon (BR) instruments. Speed and direction were measured, then resolved into u and v components. Data was sampled in 10 (AA current meters) or 20 minute intervals (Braincon current meters), edited for spurious values, then filtered to reduce high frequency noise and decimated to hourly values. In some cases data was interpolated to even hours to produce the hourly data.

Abbreviations and units are:
Depth, m, meters,
Speed, spd, cm/sec,
Direction, D, degrees, true north,
u component (eastward), u, v component (northward), v, cm/sec, true North,
Temperature, T, ºC,
Date and time is listed as PDATE to indicate time base is local, Pacific time zone. Add 8 hours to convert to GMT. Format mm/dd/yy hh:mm.

Data files consist of ASCII tab delimited files. Headers indicate the mooring, the variable, and depth rounded to the nearest meter. For example SLu65 indicates the data is from the Slope mooring, u component at 65m, WISv20 indicates the data is from the Westport Inshore mooring, v component, at 20m. The last column, JJ, is zero filled to indicate last data column for that meter.

Mooring: Destruction Island (DI)                                   Position: 47º35.4'N, 124º46.3'W
Bottom depth: 91m
Deployed: 0757 (+8) Feb. 23, 1975
Recovered: Returned to UW 11/11/75. Found by fisherman dragging in approximately 77m of water SW of Destruction Island.

Actual Depth Variables Instrument type, Comments
20
u,v
 BR

 

Mooring: Westport Inshore  (WIS)                                Position: 46º49.0'N, 124º27.2'W
Bottom depth: 88m
Deployed: 1105 (+8) Jan. 11, 1975
Recovered: 1405 (+8) Feb. 22, 1975

Bottom depth: 97m
Deployed: 1606 (+8) Feb. 22, 1975                              Position: 46º48.4'N, 124º31.1'W
Recovered: 1218 (+8) March 26, 1975

Note: The WIS data is composed of data from 2 deployments. The short gap between retrieval and redeployment was 'bridged' using spectral characteristics before and after the gap. See: Hickey, B.M., 1981, referenced above. Both actual depths are given in the table and the depth of the bridged file is shown in the comments as the depth referred to.

Actual Depth Variables Instrument type, Comments
17,26
u,v
 AA   Depth referred to as 20.
47,46
u,v
 AA   Depth referred to as 47.
72,66
u,v
 AA   Depth referred to as 69.
82,91
u,v
 AA   Depth referred to as 87.

 

Mooring: Westport Offshore  (WOS)                             Position: 46º48.7'N, 124º52.2'W
Bottom depth: 184m
Deployed: 1520 (+8) Feb. 23, 1975
Recovered: 1115 (+8) April 15, 1975

Actual Depth Variables Instrument type, Comments
20
u,v
 AA
50
u,v
 AA

 

Mooring: Columbia River Inshore  (CRIS)                     Position: 46º09.2'N, 124º15.1'W
Bottom depth: 91m
Deployed: 0752 (+8) Feb. 24, 1975
Recovered: 1427 (+8) March 27, 1975

Bottom depth: 91m
Deployed: 1551 (+8) March 27, 1975                           Position: 46º09.4'N, 124º15.2'W
Recovered: 0915 (+8) May 6, 1975

Note: The CRIS data at 60 and 85m is composed of data from 2 deployments. The short gap between retrieval and redeployment was 'bridged' using spectral characteristics before and after the gap. See: Hickey, B.M.,1981, referenced above.

Actual Depth Variables Instrument type, Comments
20
u,v
 AA
40
u,v
 AA
60
u,v
 AA
85
u,v
 AA

 

Mooring: Slope  (SL)                                                     Position: 46º47.5'N, 125º11.8'W
Bottom depth: 1015m
Deployed: 1031 (+8) Feb. 22, 1975
Recovered: 0848 (+8) March 27, 1975

Actual Depth Variables Instrument type, Comments
65
u,v
 BR
415
u,v
 BR
815
u,v
 BR


Last updated July 23, 2013.