Underway Data

Continuously-collected surface oceanographic and meteorological data

During CalCOFI cruises, surface oceanographic and meteorological data are collected continuously while transiting between stations. Oceanographic data are collected by pumping surface seawater through a Thermosalinograph (TSG) to measure temperature and conductivity in real-time along the ship's path. The most common TSGs used by CalCOFI ships are SBE 45 MicroTSG and SBE 21 SeaCAT.

Meteorological and ship data are collected using the shipboard meteorological (MET) system on SIO vessels or the shipboard computer system (SCS) on NOAA vessels. On SIO vessels, every 30-seconds, raw surface measurements (T, S, Fl, pH), ship measurements (speed, heading, winch, PDR), and meteorological measurements (wind, surface PAR, barometer) are combined into a single, comma-delimited record. On NOAA vessels, the cruise data are often recorded in a variety of formats/frequencies and in separate data files, requiring post-cruise processing to combine data into a standard time frame.

SIO-CalCOFI processes the raw underway data and converts the data into a universal data format. CTD near-surface data are used to correct underway temperature, salinity, & fluorometer measurements.

Available data vary considerably among cruises, owing to ships being equipped with different sensors, sensors malfunctioning, loss of GPS signal and/or poor pump flow during rough weather. In these instances, the dataset may have incomplete data columns. Detailed notes accompany each cruise to explain data shortcomings and workarounds. 

Due to data collection varying among cruises, only surface temperature, salinity, and chlorophyll-a concentration are processed into a final data product. Raw underway data are available upon request.

See also: The Rolling Deck to Repository (R2R) and Global Ocean Surface Underway Data Pilot Project (GOSUD) 

Ship Information (ship-dependent​):
Key:
Meteorological (ship-dependent​):
Oceanographic (sea surface):

Final Underway Data (Present to 2004)

Final 1-Minute Data (csv/xls), Processing Notes (pdf) & Cruise Path Figures (pdf/png)

2020

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Spring 2020 Cruise cancelled due to COVID-19 Pandemic

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

2019

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

2018

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

28 Mar - 20 Apr 2018

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2017

9 - 24 Nov 2017

1711SR

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

1 - 16 Aug 2017

1708SR

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

1 - 16 Aug 2017

1704SH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

5 - 20 Jan 2017 (Leg I)

25 - 29 Jan 2017 (Leg II)

1701RL

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2016

6 - 22 Nov 2016

1611SR

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

10 - 27 Jul 2016

1607OS

Download:

Temperature Cruise Path

Download: PDF / PNG

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

pCO2 Cruise Path

Download: PDF / PNG

1 - 22 Apr 2016

1604SH

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

7 - 29 Jan 2016

1601RL

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2015

28 Oct - 13 Nov 2015

1511OC

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

8 - 24 Jul 2015

1507OC

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

4 - 20 Apr 2015

1504NH

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

15 Jan - 8 Feb 2015

1501NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2014

8 - 23 Nov 2014

1411NH

Download:

**There was an inconsistent flow and poor comparison between salinity and chlorophyll, indicating that this is not reliable data**

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

6 - 22 Jul 2014

1407NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

28 Mar - 18 Apr 2014

1404OS

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

28 Jan - 6 Feb 2014

1402SH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2013

9 - 25 Nov 2013

1311NH

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

6 - 22 Jul 2013

1307NH

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

6 - 30 Apr 2013

1304SH

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

10 Jan - 2 Feb 2013

1301SH

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2012

19 Oct - 5 Nov 2012

1210NH

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Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2 - 27 Jul 2012

1207OS

Download:

Not Available For This Cruise

Not Available For This Cruise

Not Available For This Cruise

24 Mar - 7 Apr 2012

1203SH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

27 Jan - 14 Feb 2012

1202NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2011

Oct - Nov 2011

1110NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

27 Jul - 13 Aug 2011

1108NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

8 - 26 Apr 2011

1104SH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

12 Jan - Feb 6 2011

1101NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2010

28 Oct - 13 Nov 2010

1011NH

Download:

Temperature Cruise Path

Download: PNG

Salinity Cruise Path

Download: PNG

Chlorophyll Cruise Path

Download: PNG

30 Jul - 16 Aug 2010

1008NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

27 Apr - 17 May 2010

1004MF

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

13 Jan - 4 Feb 2010

1001NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2009

4 - 23 Nov 2009

0911NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PNG

Chlorophyll Cruise Path

Download: PNG

14 Jul - 1 Aug 2009

0907M2

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

7 - 24 Mar 2009

0903JD

Download:

Temperature Cruise Path

Download: PNG

Salinity Cruise Path

Download: PNG

Chlorophyll Cruise Path

Not Available For This Cruise

7 - 24 Jan 2009

0901NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2008

14 - 27 Oct 2008

0810NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

Jan 2008

0801JD

Data Not Available For This Cruise

2007

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

13 Jan - 1 Feb 2007

0701JD

Data Not Available For This Cruise

2006

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2005

Nov 2005

0511NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Jul 2005

0507NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Apr 2005

0504NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Jan 2005

0501NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

2004

Nov 2004

0411RR

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Download: PDF / PNG

Jul 2004

0407JD

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

Apr 2004

0404NH

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise

Jan 2004

0401JD

Download:

Temperature Cruise Path

Download: PDF / PNG

Salinity Cruise Path

Download: PDF / PNG

Chlorophyll Cruise Path

Not Available For This Cruise