Line P Program

Home	Cruises	History	Updates and corrections	Stations/Sampling	Publications	Collaborators	Workshops	Links/Contact
Cruise 2021-008, 24 August - 7 September 2021 Cruise description Cruise personnel Map of cruise track and stations Table of sampling done Download cruise data Profiles Documents

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

Top of page

Map of cruise track and stations

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

Top of page

Table of stations and sampling done

For HPLC data contact Angelica Peña
DIC and Alk samples are being analyzed. For more information contact Debby Ianson
For carbon data contact Heather Reader
For Trace Metal data contact Andrew Ross or Maite Maldonado
For a list of data available in the CTD files please refer to
2021-008-ctd-channels.txt
For a list of data available in the Rosette files please refer to 2021-008-che-channels.txt
Please note that the bongo casts are not yet analyzed. The data will be available soon. In the meantime contact Moira Galbraith

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

Top of page

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 or Maite Maldonado

Salinity and Nutrients collected with Trace Metal Rosette

Drifter data

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

Top of page

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

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

Temperature	Temperature Anomaly
Salinity	Salinity Anomaly
Sigma-t	Sigma-t Anomaly
Dissolved Oxygen (ml/l)	No anomaly profile available

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

Temperature	Temperature Anomaly
Salinity	Salinity Anomaly
Sigma-t	Sigma-t Anomaly
Dissolved Oxygen (µmol/kg)	Dissolved Oxygen Anomaly (µmol/kg)

Documents

Cruise plan (PDF file)
Cruise report (PDF file)
Data processing report (2021-008-proc.pdf)
Cruise log book
Sampling log sheets
Chlorophyll and Phaeo-pigment duplicates (2021-008_CHL.pdf)
Dissolved Oxygen duplicates (2021-008_OXY.pdf)
Nutrients precision and duplicates (2021-008_NUT.pdf)
DMS duplicates (2021-008_DMS.pdf)
DMSP duplicates (2021-008_DMSP.pdf)
DMS Report (2021-008_DMS_report.pdf)
Salinity duplicates (2021-008_SAL.pdf)
Data Quality flags
Sea-Bird Note 64-2_Jun2012
Carpenter, J.H. 1965. The Chesapeake Bay Institute Technique for the Winkler Dissolved Oxygen Method. Limmnol. & Oceanogr., 10: 141-143.
Culberson, C.H. 1991. Dissolved oxygen. In WOCE Operations Manual. Volume 3: The Observational Program. Section 3.1: WOCE Hydrographic Program. Part 3.1.3: WHP Operations and Methods. WHP Office Report WHPO 91-1 / WOCE Report No. 68/91.
Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., and Strickland J.D.H. 1965. Fluorometric Determination of Chlorophyll. J.du Cons. Intl. Pour l’Epl. De la Mer. 30:3-15.
Barwell-Clarke, J. and F. Whitney. 1996. Institute of Ocean Sciences Nutrient Methods and Analysis. Canadian Technical Report of Hydrography and Ocean Sciences, No. 182, 43 pp.

Top of page