Station Positions

The standard CalCOFI survey grid includes six transect lines that are spaced approximately 40 nautical miles (nm) apart. On the winter and spring surveys, up to five additional northern transects are added.

Along the transect lines, stations are spaced approximately 40 nm apart for offshore stations and 20 nm apart for coastal stations (see coordinates in table below).

In July 2004, nine 20 meter SCCOOS (Southern California Coastal Ocean Observation System) stations were added to the standard 66 station CalCOFI pattern. Today, these 75 stations make up the standard CalCOFI sampling grid.

75 Station Pattern

CalCOFI’s standard station pattern since 1984
Currently used on Summer and Fall surveys (~16 days at sea)
6 transect lines (93.3 to 76.7)
66 stations from San Diego to Avila Beach
9 additional coastal ~20m SCCOOS stations

104 or 113 Station Pattern

The 104 station pattern is currently used on Winter and Spring surveys (~23 days at sea)
- 113 stations have occasionally been occupied (25+ days at sea) by sampling every 20 nautical miles on line 66.7 off Monterey, CA (part of the MBARI ‘SECRET’ time-series)
Adds 5 additional transect lines (73.3 through 60.0) to the standard 6 lines
29 additional stations north of the standard pattern (or 38 additional for the 113 station pattern)

Check out our 'History' page for the original CalCOFI station pattern established in 1950

Station Locations

Station Position (Lat/Lon), Depth, and Type

Order Occ	Line	Sta	Lat (dec)	Lat (deg)	Lat (min)	Lat (deg min)	Lon (dec)	Lon (deg)	Lon (min)	Lon (deg min)	Est Depth	Sta Type
1	93.3	26.7	32.95637	32	57.4	32 57.38	-117.30538	117	18.3	117 18.32	63	ROS
2	93.4	26.4	32.94905	32	56.9	32 56.94	-117.27357	117	16.4	117 16.41	20	SCCOOS
3	91.7	26.4	33.2435	33	14.6	33 14.61	-117.46542	117	27.9	117 27.93	20	SCCOOS
4	93.3	28	32.91304	32	54.8	32 54.78	-117.39438	117	23.7	117 23.66	609	ROS
5	93.3	30	32.84637	32	50.8	32 50.78	-117.53122	117	31.9	117 31.87	846	ROS
6	93.3	35	32.67971	32	40.8	32 40.78	-117.87286	117	52.4	117 52.37	616	ROS
7	93.3	40	32.51304	32	30.8	32 30.78	-118.21386	118	12.8	118 12.83	1627	ROS
8	93.3	45	32.34637	32	20.8	32 20.78	-118.55423	118	33.3	118 33.25	1376	ROS
9	93.3	50	32.17971	32	10.8	32 10.78	-118.89396	118	53.6	118 53.64	1452	ROS
10	93.3	55	32.01304	32	0.8	32 0.78	-119.23306	119	14	119 13.98	1588	ROS
11	93.3	60	31.84637	31	50.8	31 50.78	-119.57154	119	34.3	119 34.29	1899	ROS
12	93.3	70	31.51304	31	30.8	31 30.78	-120.24666	120	14.8	120 14.80	3931	ROS
13	93.3	80	31.17971	31	10.8	31 10.78	-120.91935	120	55.2	120 55.16	3848	ROS
14	93.3	90	30.84637	30	50.8	30 50.78	-121.58965	121	35.4	121 35.38	4109	ROS
15	93.3	100	30.51304	30	30.8	30 30.78	-122.2576	122	15.5	122 15.46	4132	ROS
16	93.3	110	30.17971	30	10.8	30 10.78	-122.92324	122	55.4	122 55.39	3868	ROS
17	93.3	120	29.84637	29	50.8	29 50.78	-123.58661	123	35.2	123 35.20	4061	ROS
18	90	120	30.41795	30	25.1	30 25.08	-123.99893	123	59.9	123 59.94	4141	ROS
19	90	110	30.75128	30	45.1	30 45.08	-123.33164	123	19.9	123 19.90	4017	ROS
20	90	100	31.08462	31	5.1	31 5.08	-122.66202	122	39.7	122 39.72	3997	ROS
21	90	90	31.41795	31	25.1	31 25.08	-121.99001	121	59.4	121 59.40	3879	ROS
22	90	80	31.75128	31	45.1	31 45.08	-121.31559	121	18.9	121 18.94	3694	ROS
23	90	70	32.08462	32	5.1	32 5.08	-120.63872	120	38.3	120 38.32	3806	ROS
24	90	60	32.41795	32	25.1	32 25.08	-119.95935	119	57.6	119 57.56	880	ROS
25	90	53	32.65128	32	39.1	32 39.08	-119.48228	119	28.9	119 28.94	1309	ROS
26	90	45	32.91795	32	55.1	32 55.08	-118.93551	118	56.1	118 56.13	1695	ROS
27	90	37	33.18462	33	11.1	33 11.08	-118.38708	118	23.2	118 23.22	1177	ROS
28	90	35	33.25128	33	15.1	33 15.08	-118.24971	118	15	118 14.98	344	ROS
29	90	30	33.41795	33	25.1	33 25.08	-117.90582	117	54.3	117 54.35	613	ROS
30	90	28	33.48462	33	29.1	33 29.08	-117.76808	117	46.1	117 46.08	63	ROS
31	90	27.7	33.49462	33	29.7	33 29.68	-117.74741	117	44.8	117 44.84	20	SCCOOS
32	88.5	30.1	33.67442	33	40.5	33 40.47	-118.08369	118	5	118 5.02	20	SCCOOS
33	86.8	32.5	33.88887	33	53.3	33 53.33	-118.44423	118	26.7	118 26.65	20	SCCOOS
34	86.7	33	33.88953	33	53.4	33 53.37	-118.49033	118	29.4	118 29.42	57	ROS
35	86.7	35	33.82286	33	49.4	33 49.37	-118.62873	118	37.7	118 37.72	662	ROS
36	85.4	35.8	34.02136	34	1.3	34 1.28	-118.83413	118	50	118 50.05	20	SCCOOS
37	86.7	40	33.65619	33	39.4	33 39.37	-118.97425	118	58.5	118 58.45	737	ROS
38	86.7	45	33.48953	33	29.4	33 29.37	-119.3191	119	19.1	119 19.15	1644	ROS
39	86.7	50	33.32286	33	19.4	33 19.37	-119.66327	119	39.8	119 39.80	78	ROS
40	86.7	55	33.15619	33	9.4	33 9.37	-120.00678	120	0.4	120 0.41	1201	ROS
41	86.7	60	32.98953	32	59.4	32 59.37	-120.34964	120	21	120 20.98	722	ROS
42	86.7	70	32.65619	32	39.4	32 39.37	-121.03339	121	2	121 2.00	3771	ROS
43	86.7	80	32.32286	32	19.4	32 19.37	-121.71457	121	42.9	121 42.87	4041	ROS
44	86.7	90	31.98953	31	59.4	31 59.37	-122.39323	122	23.6	122 23.59	4099	ROS
45	86.7	100	31.65619	31	39.4	31 39.37	-123.0694	123	4.2	123 4.16	4147	ROS
46	86.7	110	31.32286	31	19.4	31 19.37	-123.74313	123	44.6	123 44.59	3951	ROS
47	83.3	110	31.91176	31	54.7	31 54.71	-124.1704	124	10.2	124 10.22	4163	ROS
48	83.3	100	32.24509	32	14.7	32 14.71	-123.49232	123	29.5	123 29.54	4145	ROS
49	83.3	90	32.57842	32	34.7	32 34.71	-122.81173	122	48.7	122 48.70	4247	ROS
50	83.3	80	32.91176	32	54.7	32 54.71	-122.12858	122	7.7	122 7.71	4180	ROS
51	83.3	70	33.24509	33	14.7	33 14.71	-121.44283	121	26.6	121 26.57	3797	ROS
52	83.3	60	33.57842	33	34.7	33 34.71	-120.75443	120	45.3	120 45.27	1397	ROS
53	83.3	55	33.74509	33	44.7	33 44.71	-120.40923	120	24.6	120 24.55	999	ROS
54	83.3	51	33.87842	33	52.7	33 52.71	-120.13258	120	8	120 7.95	102	ROS
55	83.3	42	34.17842	34	10.7	34 10.71	-119.50851	119	30.5	119 30.51	134	ROS
56	83.3	40.6	34.22509	34	13.5	34 13.51	-119.41124	119	24.7	119 24.67	34	ROS
57	83.3	39.4	34.26509	34	15.9	34 15.91	-119.32781	119	19.7	119 19.67	20	SCCOOS
58	81.7	43.5	34.40555	34	24.3	34 24.33	-119.80037	119	48	119 48.02	20	SCCOOS
59	81.8	46.9	34.2749	34	16.5	34 16.49	-120.02524	120	1.5	120 1.51	578	ROS
60	80	50.5	34.46667	34	28	34 28.00	-120.48906	120	29.3	120 29.34	20	SCCOOS
61	80	51	34.45	34	27	34 27.00	-120.5239	120	31.4	120 31.43	73	ROS
62	80	55	34.31667	34	19	34 19.00	-120.80245	120	48.1	120 48.15	780	ROS
63	80	60	34.15	34	9	34 9.00	-121.15	121	9	121 9.00	2204	ROS
64	80	70	33.81667	33	49	33 49.00	-121.84304	121	50.6	121 50.58	3631	ROS
65	80	80	33.48333	33	29	33 29.00	-122.53335	122	32	122 32.00	4007	ROS
66	80	90	33.15	33	9	33 9.00	-123.22099	123	13.3	123 13.26	4229	ROS
67	80	100	32.81667	32	49	32 49.00	-123.90599	123	54.4	123 54.36	4348	ROS
68	76.7	100	33.38824	33	23.3	33 23.29	-124.32289	124	19.4	124 19.37	4551	ROS
69	76.7	90	33.72158	33	43.3	33 43.29	-123.63335	123	38	123 38.00	4201	ROS
70	76.7	80	34.05491	34	3.3	34 3.29	-122.94109	122	56.5	122 56.47	4235	ROS
71	76.7	70	34.38824	34	23.3	34 23.29	-122.24608	122	14.8	122 14.76	4017	ROS
72	76.7	60	34.72158	34	43.3	34 43.29	-121.54828	121	32.9	121 32.90	930	ROS
73	76.7	55	34.88824	34	53.3	34 53.29	-121.19831	121	11.9	121 11.90	562	ROS
74	76.7	51	35.02158	35	1.3	35 1.29	-120.91782	120	55.1	120 55.07	240	ROS
75	76.7	49	35.08824	35	5.3	35 5.29	-120.7774	120	46.6	120 46.64	69	ROS
76	73.3	50	35.64381	35	38.6	35 38.63	-121.25575	121	15.3	121 15.35	30	ROS
77	73.3	55	35.47714	35	28.6	35 28.63	-121.60901	121	36.5	121 36.54	1003	ROS
78	73.3	60	35.31047	35	18.6	35 18.63	-121.96154	121	57.7	121 57.69	2380	ROS
79	73.3	70	34.97714	34	58.6	34 58.63	-122.6644	122	39.9	122 39.86	4072	ROS
80	73.3	80	34.64381	34	38.6	34 38.63	-123.36439	123	21.9	123 21.86	4164	ROS
81	73.3	90	34.31047	34	18.6	34 18.63	-124.06154	124	3.7	124 3.69	3186	ROS
82	73.3	100	33.97714	33	58.6	33 58.63	-124.7559	124	45.4	124 45.35		ROS
83	70	100	34.54872	34	32.9	34 32.92	-125.17964	125	10.8	125 10.78		ROS
84	70	90	34.88205	34	52.9	34 52.92	-124.48047	124	28.8	124 28.83	4336	ROS
85	70	80	35.21538	35	12.9	35 12.92	-123.77843	123	46.7	123 46.71	4078	ROS
86	70	70	35.54872	35	32.9	35 32.92	-123.07348	123	4.4	123 4.41	3845	ROS
87	70	60	35.88205	35	52.9	35 52.92	-122.36556	122	21.9	122 21.93	3071	ROS
88	70	55	36.04872	36	2.9	36 2.92	-122.01048	122	0.6	122 0.63	1304	ROS
89	70	51	36.18205	36	10.9	36 10.92	-121.72586	121	43.6	121 43.55	420	ROS
90	66.7	50	36.78696	36	47.2	36 47.22	-122.05633	122	3.4	122 3.38	1006	ROS
91	66.7	55	36.62029	36	37.2	36 37.22	-122.41482	122	24.9	122 24.89	2613	ROS
92	66.7	60	36.45363	36	27.2	36 27.22	-122.77254	122	46.4	122 46.35	2954	ROS
93	66.7	65	36.28696	36	17.2	36 17.22	-123.12948	123	7.8	123 7.77	3273	ROS
94	66.7	70	36.12029	36	7.2	36 7.22	-123.48565	123	29.1	123 29.14	3581	ROS
95	66.7	75	35.95363	35	57.2	35 57.22	-123.84106	123	50.5	123 50.46	3885	ROS
96	66.7	80	35.78696	35	47.2	35 47.22	-124.19571	124	11.7	124 11.74	3964	ROS
97	66.7	85	35.62029	35	37.2	35 37.22	-124.54962	124	33	124 32.98		ROS
98	66.7	90	35.45363	35	27.2	35 27.22	-124.90278	124	54.2	124 54.17	4437	ROS
99	66.7	95	35.28696	35	17.2	35 17.22	-125.2552	125	15.3	125 15.31		ROS
100	66.7	100	35.12029	35	7.2	35 7.22	-125.60689	125	36.4	125 36.41		ROS
101	63.3	100	35.70919	35	42.6	35 42.55	-126.05088	126	3.1	126 3.05		ROS
102	63.3	90	36.04252	36	2.6	36 2.55	-125.34152	125	20.5	125 20.49	4224	ROS
103	63.3	80	36.37586	36	22.6	36 22.55	-124.62912	124	37.7	124 37.75	4153	ROS
104	63.3	70	36.70919	36	42.6	36 42.55	-123.91364	123	54.8	123 54.82	3890	ROS
105	63.3	60	37.04252	37	2.6	37 2.55	-123.19502	123	11.7	123 11.70	2566	ROS
106	63.3	55	37.20919	37	12.6	37 12.55	-122.83452	122	50.1	122 50.07	301	ROS
107	63.3	52	37.30919	37	18.6	37 18.55	-122.61783	122	37.1	122 37.07	89	ROS
108	60	53	37.84743	37	50.8	37 50.85	-123.09942	123	6	123 5.97	87	ROS
109	60	60	37.6141	37	36.8	37 36.85	-123.60825	123	36.5	123 36.49	3298	ROS
110	60	70	37.28077	37	16.8	37 16.85	-124.33237	124	19.9	124 19.94	3999	ROS
111	60	80	36.94743	36	56.8	36 56.85	-125.05327	125	3.2	125 3.20	4339	ROS
112	60	90	36.6141	36	36.8	36 36.85	-125.77099	125	46.3	125 46.26	4516	ROS
113	60	100	36.28077	36	16.8	36 16.85	-126.48559	126	29.1	126 29.14		ROS

20 meter Stations

Southern California Coastal Ocean Observing System (SCCOOS)

SCCOOS brings together coastal observations in the Southern California Bight to provide information necessary to address issues in climate change, ecosystem preservation and management, coastal water quality, maritime operations, coastal hazards and national security.

As a science-based decision support system, SCCOOS works interactively with local, state and federal agencies, resource managers, industry, policy makers, educators, scientists and the general public to provide data, models and products that advance our understanding of the current and future state of our coastal and global environment.

The objective of SCCOOS nearshore observations is to extend CalCOFI time series to the nearshore. In 2004, CalCOFI added 9 SCCOOS stations to the standard 66 station pattern.

Nearshore observations consist of 9 stations at the ends and interspersed with current CalCOFI lines on the 20 m isobath with a standard set of CalCOFI observations.

On each station, a CTD Rosette is deployed measuring temperature, salinity, oxygen, fluorescence, transmittance, nitrate and PAR. CTD-rosette 10L bottles are closed at 5m depth intervals (~4: 1, 5, 10, 15) isolating seawater for analysis of salinity, dissolved oxygen, chlorophyll-a, and nutrients.

Data for these measurements can be found in individual hydrographic data reports starting in 2004. HPLC, POM, TOC and Size Fractionation are also measured at these stations by our CCE-LTER affiliate. These data are located on the Ocean Informatics DataZoo website.

A Bongo net is also towed at every SCCOOS station and zooplankton displacement volumes are reported in the data reports.

SCCOOS Station Positions

Line	Station	Lat (deg)	Lat (mins)	Lon (deg)	Lon (mins)	Lat (dec)	Lon (dec)
93.4	26.4	32	57.264	117	16.766	32.954	117.279
91.7	26.4	33	14.755	117	27.754	33.246	117.463
90.0	27.7	33	29.678	117	44.831	33.495	117.747
88.5	30.1	33	40.370	118	5.658	33.673	118.094
86.8	32.5	33	53.400	118	26.500	33.890	118.442
85.4	35.8	34	0.800	118	49.900	34.013	118.832
83.3	39.4	34	15.534	119	19.446	34.259	119.324
81.7	43.5	34	24.500	119	48.090	34.408	119.801
80.0	50.5	34	27.724	120	29.061	34.462	120.484

Stations Occasionally Affected by Navy Operations

When Naval operations are underway in the outlined area, seven stations may not be occupied.

Area-10 (outlined in red) includes stations 93.3 40.0, 93.3 45.0, 93.3 50.0, 93.3 55.0, 93.3 60.0, 90.0 45.0, 90.0 53.0.

FLETA HOT (the smaller purple box southwest of San Diego) includes station 93.3 40.0.

Navy Stations

Please note that "Order Occupied" is the predicted station sequence; stations are occupied within 2 nautical miles of desired position

Order Occupied	Line	Station	Latitude	Longitude	Operations Area - Comments
22	90	80	31.75128 N	121.31559 W	C1177
23	90	70	32.08462 N	120.63872 W	C1177
24	90	60	32.41795 N	119.95935 W	C1177
25	90	53	32.65128 N	119.48228 W	C1177
26	90	45	32.91795 N	118.93551 W	C1177; SOAR; San Clemente Is.
37	86.7	45	33.48953 N	119.31910 W	W289S-3B
38	86.7	50	33.32286 N	119.66327 W	W289S-4A, M3, R-2535A; San Nicolas Is.
39	86.7	55	33.15619 N	120.00678 W	W289S-4A
40	86.7	60	32.98953 N	120.34964 W	W289S-5A
41	86.7	70	32.65619 N	121.03339 W	W289S-6A
42	86.7	80	32.32286 N	121.71457 W	W289S-7A
49	83.3	80	32.91176 N	122.12858 W	W289S-7B
50	83.3	70	33.24509 N	121.44283 W	W289S-6B
51	83.3	60	33.57842 N	120.75443 W	W289S-5B
52	83.3	55	33.74509 N	120.40923 W	W289S-4B
53	83.3	51	33.87842 N	120.13258 W	W289S-4B, BEFIN
60	80	51	34.45000 N	120.52390 W	W532S-M2
61	80	55	34.31667 N	120.80245 W	W532S-M2
62	80	60	34.15000 N	121.15000 W	W537, C1176
63	80	70	33.81667 N	121.84304 W	W537, C1176
64	80	80	33.48333 N	122.53335 W	W537, C1176
70	76.7	70	34.38824 N	122.24608 W	W532S-6C/7C
71	76.7	60	34.72158 N	121.54828 W	W532S-5C
72	76.7	55	34.88824 N	121.19831 W	W532S-5C/M1
73	76.7	51	35.02158 N	120.91782 W	W532S-M1

CalCOFI

Station Positions

The standard CalCOFI survey grid includes six transect lines that are spaced approximately 40 nautical miles (nm) apart. On the winter and spring surveys, up to five additional northern transects are added.

Along the transect lines, stations are spaced approximately 40 nm apart for offshore stations and 20 nm apart for coastal stations (see coordinates in table below).

In July 2004, nine 20 meter SCCOOS (Southern California Coastal Ocean Observation System) stations were added to the standard 66 station CalCOFI pattern. Today, these 75 stations make up the standard CalCOFI sampling grid.

75 Station Pattern

CalCOFI’s standard station pattern since 1984

Currently used on Summer and Fall surveys (~16 days at sea)

6 transect lines (93.3 to 76.7)

66 stations from San Diego to Avila Beach

9 additional coastal ~20m SCCOOS stations

104 or 113 Station Pattern

The 104 station pattern is currently used on Winter and Spring surveys (~23 days at sea)

113 stations have occasionally been occupied (25+ days at sea) by sampling every 20 nautical miles on line 66.7 off Monterey, CA (part of the MBARI ‘SECRET’ time-series)

Adds 5 additional transect lines (73.3 through 60.0) to the standard 6 lines

29 additional stations north of the standard pattern (or 38 additional for the 113 station pattern)

Check out our 'History' page for the original CalCOFI station pattern established in 1950

Station Locations

Station Position (Lat/Lon), Depth, and Type

20 meter Stations

Southern California Coastal Ocean Observing System (SCCOOS)

SCCOOS Station Positions

Stations Occasionally Affected by Navy Operations

When Naval operations are underway in the outlined area, seven stations may not be occupied.

Area-10 (outlined in red) includes stations 93.3 40.0, 93.3 45.0, 93.3 50.0, 93.3 55.0, 93.3 60.0, 90.0 45.0, 90.0 53.0.

FLETA HOT (the smaller purple box southwest of San Diego) includes station 93.3 40.0.

Navy Stations

Please note that "Order Occupied" is the predicted station sequence; stations are occupied within 2 nautical miles of desired position

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