Line P Program

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Cruise description

The first part of this cruise, along Line P, went amazingly well. Prior to sailing everyone got tested for COVID-19, which was reassuring before heading offshore. After sampling stations P1 to P3 we went to Clayoquot Sound and Nootka Sound for servicing some weather stations, then went back to P4 and kept doing our regular work. The weather along Line P was really good, especially for a February cruise. All stations were visited and only two deep bongo casts had to be cancelled. Shortly after leaving Station P the weather turned stormy. We were heading into the wind and waves for just under three days, which slowed us down and made for a very uncomfortable ride. Finally once in Hecate Strait we started to work again. We sampled mainly in Douglas Channel and Gardner Canal, for a total of 55 additional stations. The work there included CTDs, rosettes, bongos, and more weather stations servicing.
Trace metal sampling was performed and seven Argo drifters were deployed for IOS along Line P.
The regular sampling was completed during this cruise using a CTD, a Rosette, the Bongo, and the Go-flo bottles.
For further details see 2021-001_cruise_report.pdf in the Documents section.

Cruise personnel

Chief Scientist: Marie Robert    Institute of Ocean Sciences  (DFO)
  • Michael Arychuk (Institute of Ocean Sciences-DFO)
  • Mark Belton (Institute of Ocean Sciences-DFO)
  • Glenn Cooper (Institute of Ocean Sciences-DFO)
  • Rowan Fox (Institute of Ocean Sciences-DFO)
  • Moira Galbraith (Institute of Ocean Sciences-DFO)
  • Kyle Simpson (Institute of Ocean Sciences-DFO)
  • Cynthia Wright (Institute of Ocean Sciences-DFO)


  • Captain: Kent Reid
  • Chief Engineer: Stuart Bursaw

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Map of cruise track and stations

Map of Line-P stations for 2021-001

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 SI 48°39.58
123°29.91
31-Jan-21
02:56
Ctd to 156 dbar
3 Haro59 48°36.97
123°14.69
31-Jan-21
05:48
Rosette to 218 dbar
Ctd to 217 dbar
4 Haro59 48°35.75
123°14.56
31-Jan-21
06:41
Bongo to 210 m
5 JF1 48°16.15
123°30.01
31-Jan-21
09:34
Loop sample for salinity, chlorophyll,
nutrients
6 JF2 48°17.98
123°59.91
31-Jan-21
11:58
Rosette to 181 dbar
Ctd to 181 dbar
7 JF2 48°17.89
123°59.86
31-Jan-21
12:47
Bongo to 190 m
8 JF3 48°27.08
124°30.01
31-Jan-21
15:28
Loop sample for salinity, chlorophyll,
nutrients
9 JF4 48°30.94
125°00.05
31-Jan-21
17:35
Loop sample for salinity, chlorophyll,
nutrients
10 P1 48°34.53
125°30.13
31-Jan-21
19:47
Rosette to 125 dbar
Ctd to 128 dbar
11 P2 48°36.06
125°59.98
31-Jan-21
22:12
Rosette (DMS cast) to 104 dbar
Ctd to 113 dbar
12 P2 48°36.00
125°59.95
31-Jan-21
22:41
Bongo to 105 m
13 P2 48°36.02
125°59.90
31-Jan-21
23:07
Rosette (Deep cast) to 107 dbar
Ctd to 109 dbar
14 P3 48°37.53
126°20.09
01-Feb-21
00:49
Rosette to 5 dbar
Ctd to 810 dbar
15 Loop 15 48°59.10
126°14.86
01-Feb-21
03:31
Loop sample for salinity and chlorophyll.
16 Loop 16 49°14.17
126°05.09
01-Feb-21
08:51
Loop sample for salinity and chlorophyll.
17 Bussell 49°13.02
125°59.27
01-Feb-21
15:23
Boat launch for weather stations servicing
18 Conception 49°39.26
126°27.83
02-Feb-21
15:40
Boat launch for weather stations servicing
19 Conception 49°39.27
126°27.82
02-Feb-21
15:51
Ctd to 182 dbar
20 Conception 49°39.26
126°27.71
02-Feb-21
16:21
Bongo to 182 m
21 ZCN 49°38.05
126°29.63
02-Feb-21
16:51
Ctd to 129 dbar
22 ZCS 49°36.32
126°30.92
02-Feb-21
17:24
Ctd to 158 dbar
23 CCS 49°35.82
126°34.82
02-Feb-21
18:04
Ctd to 97 dbar
24 CCN 49°38.92
126°36.01
02-Feb-21
18:40
Rosette to 100 dbar
Ctd to 152 dbar
25 Tlupana 49°41.58
126°31.00
02-Feb-21
20:03
Ctd to 251 dbar
26 Hecate 49°51.82
126°44.56
02-Feb-21
22:17
Ctd to 214 dbar
27 Hecate 49°51.80
126°44.58
02-Feb-21
22:42
Bongo to 217 m
28 Steamer2 49°53.16
126°46.49
02-Feb-21
23:33
Ctd to 221 dbar
29 Steamer1 49°54.10
126°47.59
03-Feb-21
00:02
Ctd to 216 dbar
30 E1 49°52.12
126°50.90
03-Feb-21
00:41
Ctd to 226 dbar
31 Loop 31 49°47.92
127°02.32
03-Feb-21
01:46
Loop sample for salinity and chlorophyll.
32 Loop 32 48°55.79
126°49.02
03-Feb-21
08:00
Loop sample for salinity and chlorophyll.
33 P4 48°39.08
126°40.00
03-Feb-21
10:10
Trace Metal Go-flo to 75 m
34 P4 48°39.07
126°40.00
03-Feb-21
11:05
Bongo to 250 m
35 P4 48°38.99
126°40.01
03-Feb-21
12:22
Trace Metal Go-flo to 800 m
36 P4 48°38.99
126°40.00
03-Feb-21
14:12
Bongo to 1200 m
37 P4 48°39.00
126°40.01
03-Feb-21
14:47
Rosette (Deep cast) to 1321 dbar
Ctd to 1322 dbar
38 P4 48°38.98
126°40.02
03-Feb-21
16:46
Rosette (DMS cast) to 400 dbar
Ctd to 400 dbar
39 P5 48°41.51
127°09.81
03-Feb-21
19:44
Rosette to 5 dbar
Ctd to 2005 dbar
Loop sample for salinity and chlorophyll
40 P6 48°44.54
127°39.99
03-Feb-21
23:22
Rosette to 5 dbar
Ctd to 2006 dbar
41 P7 48°46.58
128°09.99
04-Feb-21
02:42
Rosette to 5 dbar
Ctd to 2005 dbar
42 P8 48°48.96
128°39.99
04-Feb-21
06:26
Bongo to 250 m
43 P8 48°48.91
128°39.94
04-Feb-21
07:10
Bongo to 1200 m
44 P8 48°48.91
128°39.89
04-Feb-21
07:41
Rosette to 2000 dbar
Ctd to 2006 dbar
45 P8 48°48.95
128°39.52
04-Feb-21
09:42
Deploy Argo float 37
46 P9 48°51.34
129°09.88
04-Feb-21
12:14
Rosette to 5 dbar
Ctd to 2005 dbar
Loop sample for salinity and chlorophyll
47 P10 48°53.59
129°39.85
04-Feb-21
16:07
Rosette to 5 dbar
Ctd to 2006 dbar
48 P11 48°56.19
130°09.76
04-Feb-21
20:03
Rosette to 5 dbar
Ctd to 2005 dbar
49 P12 48°58.22
130°39.77
05-Feb-21
00:04
Rosette (DMS cast) to 401 dbar
Ctd to 402 dbar
50 P12 48°58.13
130°39.83
05-Feb-21
00:50
Bongo to 250 m
51 P12 48°58.22
130°40.00
05-Feb-21
01:44
Rosette (Deep cast) to 3229 dbar
Ctd to 3230 dbar
52 P12 48°58.19
130°40.15
05-Feb-21
05:05
Trace Metal Go-flo to 800 m
53 P12 48°58.20
130°40.01
05-Feb-21
07:14
Trace Metal Go-flo to 75 m
54 P12 48°58.40
130°40.30
05-Feb-21
08:15
Deploy Argo float 38
55 P13 49°02.60
131°39.98
05-Feb-21
14:15
Rosette to 4 dbar
Ctd to 2007 dbar
Loop sample for salinity and chlorophyll
56 Loop 56 49°05.49
132°15.86
05-Feb-21
18:20
Loop sample for salinity and chlorophyll.
57 P14 49°07.43
132°39.99
05-Feb-21
20:09
Rosette (Carbon cast) to 3359 dbar
Ctd to 3363 dbar
58 P15 49°12.01
133°40.07
06-Feb-21
03:13
Rosette to 5 dbar
Ctd to 2006 dbar
Loop sample for salinity and chlorophyll
60 P16 49°17.08
134°39.86
06-Feb-21
09:49
Trace Metal Go-flo to 800 m
61 P16 49°17.02
134°39.67
06-Feb-21
11:09
Rosette (HPLC cast) to 75 dbar
Ctd to 149 dbar
62 P16 49°16.96
134°39.76
06-Feb-21
13:26
Trace Metal Go-flo to 75 m
63 P16 49°16.93
134°39.97
06-Feb-21
16:05
Rosette (Deep cast) to 3685 dbar
Ctd to 3687 dbar
64 P16 49°16.90
134°40.33
06-Feb-21
18:44
Bongo to 250 m
65 P16 49°17.03
134°40.46
06-Feb-21
19:06
Deploy Argo float 35
66 P17 49°20.96
135°39.95
07-Feb-21
00:26
Rosette to 5 dbar
Ctd to 2007 dbar
Loop sample for salinity and chlorophyll
67 P18 49°26.01
136°40.06
07-Feb-21
06:33
Rosette (Carbon cast) to 3889 dbar
Ctd to 3890 dbar
68 Loop 68 49°28.52
137°14.14
07-Feb-21
11:17
Loop sample for salinity and chlorophyll
69 P19 49°30.14
137°39.75
07-Feb-21
13:25
Rosette to 5 dbar
Ctd to 2006 dbar
Loop sample for salinity and chlorophyll
70 P20 49°33.95
138°39.91
07-Feb-21
18:47
Trace Metal Go-flo to 800 m
71 P20 49°34.03
138°40.02
07-Feb-21
20:02
Bongo to 250 m
72 P20 49°34.02
138°40.03
07-Feb-21
20:15
Rosette (HPLC cast) to 75 dbar
Ctd to 150 dbar
73 P20 49°34.01
138°40.01
07-Feb-21
20:30
Trace Metal Go-flo to 75 m
74 P20 49°34.01
138°40.04
07-Feb-21
21:43
Bongo to 1200 m
75 P20 49°34.02
138°39.99
07-Feb-21
22:57
Rosette (Deep cast) to 4022 dbar
Ctd to 4024 dbar
76 P20 49°34.33
138°41.28
08-Feb-21
01:42
Deploy Argo float 39
77 P21 49°37.99
139°39.98
08-Feb-21
05:14
Rosette to 4 dbar
Ctd to 2006 dbar
Loop sample for salinity and chlorophyll
78 P22 49°41.93
140°40.08
08-Feb-21
10:06
Rosette (Carbon cast) to 3972 dbar
Ctd to 3973 dbar
79 P22 49°41.96
140°39.85
08-Feb-21
12:41
Deploy Argo float 28
80 P23 49°46.08
141°40.07
08-Feb-21
16:10
Rosette to 5 dbar
Ctd to 2006 dbar
Loop sample for salinity and chlorophyll
81 Loop 81 49°47.69
142°07.80
08-Feb-21
18:50
Loop sample for salinity and chlorophyll
82 P24 49°50.17
142°40.00
08-Feb-21
20:38
Rosette (Carbon cast) to 4044 dbar
Ctd to 4046 dbar
83 P24 49°50.42
142°40.35
08-Feb-21
23:22
Deploy Argo float 25
84 P25 50°00.04
143°36.35
09-Feb-21
02:41
Rosette to 1000 dbar
Ctd to 2005 dbar
85 P35 50°00.00
144°18.19
09-Feb-21
06:29
Rosette to 5 dbar
Ctd to 2005 dbar
Loop sample for salinity and chlorophyll
86 P26 50°00.02
145°00.11
09-Feb-21
10:08
Trace Metal Go-flo to 1500 m
87 P26 49°59.97
144°59.90
09-Feb-21
12:00
Bongo to 250 m
88 P26 49°59.98
144°59.92
09-Feb-21
12:26
Trace Metal Go-flo to 200 m
89 P26 49°59.97
144°59.93
09-Feb-21
14:14
Bongo to 1200 m
90 P26 50°00.00
145°00.02
09-Feb-21
15:25
Trace Metal Go-flo to 10 m - bulk water
91 P26 50°00.01
145°00.02
09-Feb-21
15:57
Rosette (HPLC cast) to 75 dbar
Ctd to 151 dbar
92 P26 50°00.00
145°00.13
09-Feb-21
17:11
Rosette (Deep cast) to 4318 dbar
Ctd to 4320 dbar
93 P26 50°00.26
144°59.56
09-Feb-21
20:06
Deploy Argo float 40
94 PA-014 50°02.86
144°51.48
09-Feb-21
21:32
Rosette to 9 dbar
Ctd to 350 dbar
96 Loop 96 50°32.31
141°02.29
10-Feb-21
12:03
Loop sample for salinity and chlorophyll
97 Loop 97 50°40.77
139°49.77
10-Feb-21
16:45
Loop sample for salinity and chlorophyll
98 Loop 98 50°40.77
139°49.77
10-Feb-21
16:46
Bulk sea water
99 Loop 99 51°00.04
137°32.73
11-Feb-21
02:03
Loop sample for salinity and chlorophyll
100 Loop 100 51°17.25
135°13.35
11-Feb-21
11:50
Loop sample for salinity and chlorophyll
101 Loop 101 52°16.45
130°39.43
12-Feb-21
12:32
Loop sample for salinity and chlorophyll
102 SRN 53°06.19
130°23.36
12-Feb-21
18:31
Ctd to 199 dbar
103 MT02 53°02.01
130°14.83
12-Feb-21
19:51
Ctd to 215 dbar
104 MT03 52°55.55
130°07.96
12-Feb-21
20:58
Ctd to 242 dbar
105 MT04 52°49.14
130°01.26
12-Feb-21
22:05
Ctd to 259 dbar
106 HEC1 52°49.22
129°50.70
12-Feb-21
23:07
Rosette to 129 dbar
Ctd to 130 dbar
107 HEC1 52°49.15
129°50.26
12-Feb-21
23:54
Bongo to 120 m
108 CAM1 52°46.82
129°30.05
13-Feb-21
01:49
Ctd to 425 dbar
109 CAM2 52°54.95
129°15.53
13-Feb-21
03:37
Ctd to 234 dbar
110 CMP1 53°00.43
129°15.49
13-Feb-21
04:37
Ctd to 360 dbar
111 SC69 53°04.94
129°19.48
13-Feb-21
06:00
Bongo to 680 m
112 SC69 53°05.14
129°19.48
13-Feb-21
06:18
Rosette to 678 dbar
Ctd to 679 dbar
113 HB-GIL 53°08.73
129°21.00
13-Feb-21
08:06
Ctd to 267 dbar
114 SC64 53°08.77
129°23.42
13-Feb-21
08:43
Ctd to 456 dbar
115 HB-CAM 53°08.31
129°25.12
13-Feb-21
09:24
Ctd to 480 dbar
116 HB-OTTER 53°12.43
129°29.05
13-Feb-21
10:30
Ctd to 274 dbar
117 SC61 53°12.69
129°25.13
13-Feb-21
11:13
Rosette to 501 dbar
Ctd to 501 dbar
118 LP53 53°13.32
129°23.06
13-Feb-21
12:29
Ctd to 483 dbar
119 HB-FIN 53°14.16
129°22.74
13-Feb-21
13:02
Ctd to 341 dbar
120 HB-FIN 53°13.43
129°22.39
13-Feb-21
15:34
Boat launch for weather stations servicing
121 SC58 53°16.62
129°25.62
13-Feb-21
16:11
Ctd to 515 dbar
122 Doug45 53°29.55
129°05.06
13-Feb-21
19:14
Boat launch for weather stations servicing
123 VP39 53°30.50
129°03.70
13-Feb-21
19:37
Ctd to 108 dbar
124 VP39B 53°31.43
129°02.82
13-Feb-21
20:00
Ctd to 96 dbar
125 VP39C 53°32.42
129°00.52
13-Feb-21
20:30
Ctd to 53 dbar
126 Doug02 53°57.82
128°40.98
14-Feb-21
01:58
Rosette to 171 dbar
Ctd to 170 dbar
127 KIT1 53°56.25
128°41.32
14-Feb-21
02:29
Rosette to 201 dbar
Ctd to 200 dbar
128 Doug04 53°55.55
128°42.39
14-Feb-21
03:12
Rosette to 213 dbar
Ctd to 213 dbar
129 Doug5A 53°54.97
128°44.04
14-Feb-21
04:02
Ctd to 104 dbar
130 Doug5B 53°54.87
128°43.81
14-Feb-21
04:21
Ctd to 165 dbar
131 Doug05 53°54.77
128°43.46
14-Feb-21
04:42
Ctd to 206 dbar
132 Doug05D 53°54.68
128°43.11
14-Feb-21
05:05
Ctd to 231 dbar
133 Doug05E 53°54.55
128°42.84
14-Feb-21
05:27
Ctd to 232 dbar
134 Doug11 53°49.80
128°49.34
14-Feb-21
06:34
Rosette to 322 dbar
Ctd to 321 dbar
135 Doug12 53°48.20
128°50.43
14-Feb-21
07:19
Ctd to 349 dbar
136 Doug12 53°48.36
128°50.33
14-Feb-21
07:52
Bongo to 346 m
137 DeC26 53°34.27
128°51.08
14-Feb-21
09:47
Rosette to 158 dbar
Ctd to 157 dbar
138 Loop 138 53°25.36
128°32.64
14-Feb-21
11:55
Loop sample for salinity and chlorophyll
139 Cornwall Pt 53°29.19
128°21.36
14-Feb-21
16:01
Boat launch for weather stations servicing
140 GC74 53°15.79
127°55.47
14-Feb-21
18:42
Rosette to 131 dbar
Ctd to 131 dbar
141 GC68 53°20.59
127°59.59
14-Feb-21
19:38
Ctd to 221 dbar
142 GC60 53°25.68
128°05.43
14-Feb-21
20:39
Ctd to 260 dbar
143 GC51 53°28.30
128°18.92
14-Feb-21
22:03
Ctd to 494 dbar
144 GC51 53°28.19
128°18.85
14-Feb-21
23:03
Bongo to 494 m
145 GC44 53°25.92
128°27.00
15-Feb-21
03:10
Rosette to 392 dbar
Ctd to 392 dbar
146 GC38 53°27.01
128°36.06
15-Feb-21
04:18
Ctd to 238 dbar
147 GC31 53°31.54
128°43.54
15-Feb-21
05:16
Ctd to 200 dbar
148 GC28 53°32.11
128°46.12
15-Feb-21
05:47
Ctd to 191 dbar
149 GC26 53°34.01
128°47.33
15-Feb-21
06:20
Ctd to 164 dbar
150 DeC24 53°35.95
128°50.52
15-Feb-21
06:57
Ctd to 166 dbar
151 DeC21 53°38.32
128°51.57
15-Feb-21
07:31
Ctd to 231 dbar
152 DeC19 53°39.31
128°52.42
15-Feb-21
08:03
Ctd to 261 dbar
153 DeC12 53°46.78
128°49.42
15-Feb-21
09:27
Ctd to 313 dbar
154 Doug12B 53°48.63
128°51.36
15-Feb-21
10:06
Ctd to 341 dbar
155 Doug16 53°46.81
128°54.80
15-Feb-21
10:47
Rosette to 383 dbar
Ctd to 383 dbar
156 Emilia 53°45.39
128°59.76
15-Feb-21
15:55
Boat launch for weather stations servicing
157 FOC1 53°44.18
129°01.86
15-Feb-21
16:20
Rosette to 364 dbar
Ctd to 363 dbar
158 Doug26 53°40.42
129°07.36
15-Feb-21
17:30
Rosette to 349 dbar
Ctd to 387 dbar
159 Doug29 53°38.24
129°11.46
15-Feb-21
18:46
Ctd to 381 dbar
160 Doug31 53°36.74
129°12.75
15-Feb-21
19:24
Rosette to 302 dbar
Ctd to 302 dbar
161 KSK1 53°28.81
129°12.52
15-Feb-21
20:35
Ctd to 369 dbar
162 Doug45 53°22.27
129°11.67
15-Feb-21
22:02
Bongo to 458 m
163 Doug45 53°22.26
129°11.59
15-Feb-21
22:19
Rosette to 457 dbar
Ctd to 456 dbar
164 HAK1 51°42.62
128°13.73
16-Feb-21
15:03
Rosette to 135 dbar
Ctd to 138 dbar
165 HAK1 51°42.67
128°13.70
16-Feb-21
15:33
Bongo to 135 m
166 KC10 51°39.16
127°57.09
16-Feb-21
17:28
Rosette to 317 dbar
Ctd to 317 dbar
167 CPE1 51°00.18
127°49.87
16-Feb-21
22:10
Ctd to 140 dbar
168 CPE1 51°00.15
127°50.00
16-Feb-21
22:35
Bongo to 140 m
169 Loop 169 50°53.99
127°38.14
16-Feb-21
23:29
Loop sample for salinity and chlorophyll
170 North Ajax 49°44.03
124°46.63
17-Feb-21
14:58
Ctd to 265 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.

 

Trace Metal Data
For Trace Metal data contact Andrew Ross

Salinity and Nutrients collected with Trace Metal Rosette

 

Drifter data
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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