Line P Program

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Cruise description

Our departure on this cruise almost got compromised by some clutch issues on the John P Tully. Thanks to the hard work from the engineering department, we left only 6 hours past the first ETD. The first morning en route revealed many changes in the usual science equipment setup but eventually most of our equipment worked properly.
One major issue was the break failure of the bongo winch. Because of this we could not do any bongo cast past station P8.
One the other hand there was one major success during this cruise in the recovery of a mooring for the Marine Mammal Group at PBS. Due to instrument failure they could not recover the mooring during their 2021 summer cruise and the acoustic release batteries were getting low. This was one of the last opportunities to recover the mooring with all the important data it had been recording over the previous year.
Trace metal sampling was performed during this cruise.
We also deployed 10 drifters for UCSD.
The regular sampling was completed during this cruise using a CTD, a Rosette, the Bongo, and the Go-flo bottles.
For further details see 2021-008_cruise_report.pdf in the Documents section.

Cruise personnel

Chief Scientist: Marie Robert    Institute of Ocean Sciences  (DFO)
  • Danielle Caleb (Institute of Ocean Sciences-DFO)
  • Glenn Cooper (Institute of Ocean Sciences-DFO)
  • Rowan Fox (Institute of Ocean Sciences-DFO)
  • Wylee Fitz-Gerald (University of British Columbia)
  • Michael Livingston (University of Victoria)
  • Racquelle Mangahas (University of British Columbia)
  • Steve Romaine (Institute of Ocean Sciences-DFO)
  • Kenny Scozzafava (Institute of Ocean Sciences-DFO)


  • Captain: Michael Shuckburgh
  • Chief Engineer: Andrew Weaver

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Map of cruise track and stations

Map of Line-P stations for 2021-008

Click on the cast types below to see at which stations the casts were done. To access data.

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Table of stations and sampling done

Event Station Position Date (UTC)
Time (UTC)
Sampling
2 Haro59 48°37.99
123°14.64
25-Aug-21
10:31
Bongo to 210 m (not analyzed yet)
3 Haro59 48°36.96
123°14.73
25-Aug-21
10:45
Rosette to 2 dbar
Ctd to 215 dbar
4 JF1 48°16.00
123°29.96
25-Aug-21
14:06
Loop sample for salinity, chlorophyll,
nutrients
5 JF2 48°18.05
124°00.21
25-Aug-21
16:16
Rosette to 2 dbar
Ctd to 177 dbar
6 JF3 48°27.02
124°30.09
25-Aug-21
18:21
Loop sample for salinity, chlorophyll,
nutrients
7 JF4 48°31.65
124°59.78
25-Aug-21
20:16
Loop sample for salinity, chlorophyll,
nutrients
8 P1 48°34.47
125°30.00
25-Aug-21
22:43
Rosette to 127 dbar
Ctd to 128 dbar
9 P2 48°36.04
125°59.93
26-Aug-21
01:11
Rosette (DMS cast) to 99 dbar
Ctd to 99 dbar
10 P2 48°35.97
125°59.70
26-Aug-21
01:45
Bongo to 210 m (not analyzed yet)
11 P2 48°35.99
125°59.87
26-Aug-21
02:18
Rosette (Deep cast) to 107 dbar
Ctd to 107 dbar
12 P3 48°37.48
126°19.99
26-Aug-21
04:13
Rosette to 4 dbar
Ctd to 805 dbar
13 P4 48°39.05
126°39.97
26-Aug-21
04:13
Trace Metal Go-flo to 75 m
14 P4 48°39.04
126°40.01
26-Aug-21
08:04
Bongo to 250 m (not analyzed yet)
16 P4 48°39.05
126°39.94
26-Aug-21
08:46
Rosette (Varela cast) to 24 dbar
Ctd to 148 dbar
17 P4 48°39.07
126°40.02
26-Aug-21
10:01
Trace Metal Go-flo to 800 m
19 P4 48°39.05
126°40.09
26-Aug-21
11:35
Rosette (Deep cast) to 1308 dbar
Ctd to 1308 dbar
20 P4 48°39.03
126°39.97
26-Aug-21
13:36
Rosette (DMS cast) to 399 dbar
Ctd to 399 dbar
21 P5 48°41.44
127°09.95
26-Aug-21
16:36
Rosette to 4 dbar
Ctd to 2005 dbar
Loop sample for salinity and chlorophyll
22 P6 48°44.57
127°39.30
26-Aug-21
20:25
Ctd to 2003 dbar
23 P6 48°44.55
127°39.88
26-Aug-21
21:37
Rosette to 4 dbar
Ctd to 49 dbar
24 P7 48°46.62
128°09.94
27-Aug-21
00:13
Rosette to 5 dbar
Ctd to 2004 dbar
25 SVPB-1 48°47.01
128°15.42
27-Aug-21
01:50
Deploy UCSD SVPB-1 drifter
26 P8 48°49.03
128°40.16
27-Aug-21
04:21
Bongo to 250 m (not analyzed yet)
27 P8 48°48.93
128°40.62
27-Aug-21
05:29
Bongo to 1200 m (not analyzed yet)
28 P8 48°48.97
128°40.06
27-Aug-21
07:05
Rosette to 1999 dbar
Ctd to 2006 dbar
29 P9 48°51.39
129°09.92
27-Aug-21
11:17
Rosette to 5 dbar
Ctd to 2005 dbar
Loop sample for salinity and chlorophyll
30 Loop 30 48°52.44
129°25.34
27-Aug-21
13:46
Loop sample for salinity and chlorophyll
31 P10 48°53.54
129°39.96
27-Aug-21
15:04
Rosette to 5 dbar
Ctd to 1006 dbar
32 DWSB-1 48°55.20
130°00.04
27-Aug-21
17:15
Deploy UCSD DWSB-1 drifter
33 P11 48°55.98
130°09.92
27-Aug-21
18:08
Rosette to 398 dbar
Ctd to 1006 dbar
34 Explorer 48°59.77
130°54.37
28-Aug-21
01:25
Recover mooring at Explorer Seamount for PBS
35 P12 48°58.32
130°40.76
28-Aug-21
02:59
Rosette (DMS cast) to 399 dbar
Ctd to 399 dbar
36 P12 48°58.19
130°40.05
28-Aug-21
04:04
Trace Metal Go-flo to 75 m
37 P12 48°58.27
130°40.04
28-Aug-21
05:06
Rosette (Deep cast) to 3273 dbar
Ctd to 3274 dbar
38 P12 48°48.21
130°39.98
28-Aug-21
08:07
Trace Metal Go-flo to 800 m
39 P12 48°58.20
130°39.96
28-Aug-21
09:12
Rosette (Varela cast) to 41 dbar
Ctd to 149 dbar
40 P13 49°02.60
131°39.85
28-Aug-21
14:00
Rosette to 4 dbar
Ctd to 2005 dbar
Loop sample for salinity and chlorophyll
41 SVPB-2 49°02.98
131°45.07
28-Aug-21
15:39
Deploy UCSD SVPB-2 drifter
42 P14 49°07.34
132°39.49
28-Aug-21
20:19
Rosette (Carbon cast) to 3359 dbar
Ctd to 3360 dbar
43 DWSB-2 49°11.21
133°29.23
29-Aug-21
02:33
Deploy UCSD DWSB-2 drifter
44 P15 49°11.99
133°39.73
29-Aug-21
03:38
Rosette to 2004 dbar
Ctd to 2006 dbar
Loop sample for salinity and chlorophyll
45 P16 49°17.00
134°40.01
29-Aug-21
10:00
Trace Metal Go-flo to 75 m
46 P16 49°16.99
134°39.99
29-Aug-21
10:37
Rosette (Deep cast) to 3685 dbar
Ctd to 3686 dbar
47 P16 49°16.99
134°39.99
29-Aug-21
14:05
Trace Metal Go-flo to 800 m
48 P16 49°17.00
134°39.99
29-Aug-21
15:23
Rosette (Varela cast) to 24 dbar
Ctd to 148 dbar
49 P16 49°17.05
134°39.94
29-Aug-21
16:20
Rosette (DMS cast) to 399 dbar
Ctd to 399 dbar
50 SVPB-3 49°19.38
135°15.31
29-Aug-21
19:43
Deploy UCSD SVPB-3 drifter
51 P17 49°20.97
135°39.88
29-Aug-21
21:46
Rosette to 2000 dbar
Ctd to 2005 dbar
52 P18 49°25.97
136°40.03
30-Aug-21
04:07
Rosette (Carbon cast) to 3889 dbar
Ctd to 3890 dbar
53 DWSB-3 49°27.28
137°00.13
30-Aug-21
08:28
Deploy UCSD DWSB-3 drifter
54 P19 49°29.96
137°39.95
30-Aug-21
11:38
Rosette to 4 dbar
Ctd to 2005 dbar
Loop sample for salinity and chlorophyll
55 P20 49°33.98
138°39.99
30-Aug-21
17:15
Rosette (Varela cast) to 39 dbar
Ctd to 149 dbar
56 P20 49°33.99
138°40.00
30-Aug-21
17:30
Trace Metal Go-flo to 75 m
57 P20 49°33.99
138°40.00
30-Aug-21
18:09
Rosette (Deep cast) to 4024 dbar
Ctd to 4025 dbar
58 P20 49°34.02
138°39.88
30-Aug-21
21:43
Trace Metal Go-flo to 800 m
59 P20 49°34.02
138°39.88
30-Aug-21
23:10
Rosette (DMS cast) to 399 dbar
Ctd to 400 dbar
60 SVPB-4 49°34.31
138°44.82
31-Aug-21
00:09
Deploy UCSD SVPB-4 drifter
61 P21 49°37.99
139°39.88
31-Aug-21
04:18
Rosette to 2004 dbar
Ctd to 2004 dbar
Loop sample for salinity and chlorophyll
62 DWSB-4 49°41.30
140°30.12
31-Aug-21
08:56
Deploy UCSD DWSB-4 drifter
63 P22 49°41.99
140°39.95
31-Aug-21
09:47
Rosette (Carbon cast) to 3999 dbar
Ctd to 3999 dbar
64 Loop 64 49°44.33
141°14.83
31-Aug-21
14:52
Loop sample for salinity and chlorophyll
65 P23 49°45.97
141°39.78
31-Aug-21
16:44
Rosette to 2004 dbar
Ctd to 2005 dbar
66 ~P23 49°47.09
141°55.40
31-Aug-21
19:14
Trace Metal pumping for UBC
67 SVPB-5 49°48.35
142°15.06
01-Sep-21
01:31
Deploy UCSD SVPB-5 drifter
68 P24 49°50.03
142°39.87
01-Sep-21
03:33
Rosette (Carbon cast) to 4046 dbar
Ctd to 4047 dbar
69 Loop 69 49°53.83
143°01.37
01-Sep-21
08:00
Loop sample for salinity and chlorophyll
70 P25 50°00.05
143°36.29
01-Sep-21
10:24
Rosette to 4 dbar
Ctd to 2004 dbar
Loop sample for salinity and chlorophyll
71 DWSB-5 50°00.02
143°57.64
01-Sep-21
13:08
Deploy UCSD DWSB-5 drifter
72 P35 50°00.01
144°18.10
01-Sep-21
14:47
Rosette to 4 dbar
Ctd to 2003 dbar
73 P35 49°59.87
144°18.03
01-Sep-21
16:06
Trace Metal Go-flo to 10 m - bulk water
74 Loop 74 50°00.04
144°30.06
01-Sep-21
17:28
Loop sample for salinity and chlorophyll
75 P26 50°00.01
144°59.91
01-Sep-21
19:50
Rosette (DMS cast) to 399 dbar
Ctd to 399 dbar
76 P26 50°00.02
144°59.94
01-Sep-21
20:38
Trace Metal Go-flo to 150 m
77 P26 50°00.02
144°59.94
01-Sep-21
22:03
Rosette (Deep cast) to 4317 dbar
Ctd to 4318 dbar
78 P26 50°00.01
144°59.98
02-Sep-21
01:45
Trace Metal Go-flo to 1500 m
79 P26 50°00.01
144°59.98
02-Sep-21
04:21
Rosette (Varela cast) to 24 dbar
Ctd to 149 dbar
80 P26 50°00.01
144°59.98
02-Sep-21
04:58
Trace Metal Go-flo to 10 m - bulk water
81 PA-015 50°06.89
144°48.98
02-Sep-21
06:32
Rosette to 9 dbar
Ctd to 350 dbar
82 Loop 82 50°06.71
143°48.52
02-Sep-21
10:55
Loop sample for salinity and chlorophyll
83 Loop 83 50°05.27
141°57.85
02-Sep-21
18:21
Loop sample for salinity and chlorophyll
84 Loop 84 50°01.16
139°49.36
03-Sep-21
02:21
Loop sample for salinity and chlorophyll
85 Loop 85 49°50.29
136°32.70
03-Sep-21
15:02
Loop sample for salinity and chlorophyll
86 Loop 86 49°38.60
134°06.88
04-Sep-21
00:34
Loop sample for salinity and chlorophyll
87 Loop 87 49°17.82
130°50.61
04-Sep-21
14:15
Loop sample for salinity and chlorophyll
88 Loop 88 48°55.38
128°03.85
05-Sep-21
01:02
Loop sample for salinity and chlorophyll
89 P2 48°35.99
126°00.07
05-Sep-21
09:36
Ctd to 108 dbar
90 P1 48°34.52
125°30.03
05-Sep-21
12:01
Ctd to 106 dbar

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Download data for the whole cruise

CTD data
List of CTD stations
Channels in CTD files

 

Chemistry (Rosette) data
List of Rosette casts
Channels in Rosette files

 

Zooplankton data
Please note that the bongo casts are not yet analyzed. The data will be available soon.
Drifter data
    Information on the drifters deployed for USCD can be found:
  • Here for the SVPB drifters
  • Here for the DWSB drifters
  • Or by contacting Verena Hormann
Thermosalinographs (TSG) data (text files)


Surface and Loop data in text format

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Profiles of T, S, Sigma-t, DO, and their anomalies

1000-dbar profiles and anomalies with respect to the 1956-1991 averages

2000-dbar profiles and anomalies with respect to the 1991-2020 averages for Temperature, Salinity and Sigma-t,
and with respect to the 2001-2020 averages for Dissolved Oxygen

Documents

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