Conductivity–Temperature–Depth (CTD) and dissolved oxygen profile data from shipboard surveys collected within Olympic Coast National Marine Sanctuary, 2005-2023

This data set includes Conductivity-Temperature-Depth (CTD) and dissolved oxygen profile data that were collected along Washington State’s outer coast within Olympic Coast National Marine Sanctuary towards the northernmost extent of the California Current System. Measurements were made at fourteen hydrographic stations during mooring deployment, recovery, and maintenance cruises between the months of May and October from 2005–2023. The 792 CTD profiles were acquired using Sea-Bird Scientific 19 SeaCAT or 19plus SeaCAT CTD profilers with associated SBE-43 (Sea-Bird Electronics) or Beckman or YSI-type (Yellow Springs Instruments) dissolved oxygen sensors. The data were processed via Sea-Bird Scientific’s SBE Data Processing application using six of the modules in the following order: Data Conversion, Filter, Align CTD, Loop Edit, Derive, and Bin Average. These processing steps and associated methods are the same as those used to process CTD data that make up the Newport Hydrographic Line time series located off the central Oregon coast thus allowing for a direct comparison between the two regions.

Station Name   
Latitude
Longitude
Water Depth (m, MLLW)

Makah Bay (MB)

MB015
48.3254oN
124.6768oW
15

MB042
48.3240oN
124.7354oW
42

Cape Alava (CA)

CA015
48.1663oN
124.7568oW
15

CA042
48.1660oN
124.8234oW
42

CA065               
48.1659oN
124.8949oW
65

Teahwhit Head (TH)

TH015
47.8761oN
124.6195oW
15

TH042
47.8762oN
124.7334oW
42

TH065               
47.8767oN
124.7967oW
65

Kalaloch (KL)

KL015
47.6008oN
124.4284oW
15

KL027
47.5946oN
124.4971oW
27

KL050               
47.5933oN
124.6112oW
50

Cape Elizabeth (CE)

CE015
47.3568oN
124.3481oW
15

CE042
47.3531oN
124.4887oW
42

CE065              
 47.3528oN
124.5669oW
65