The California Cooperative Oceanic Fisheries Investigations (CalCOFI) are a unique partnership of the California Department of Fish & Wildlife, NOAA Fisheries Service and Scripps Institution of Oceanography.
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The CalCOFI time-series officially started in 1949. We performed hydrographic bottle casts from 1949 until mid-1993, when we adopted a Seabird 911 CTD with 24 bottle rosette. Since CalCOFI 9308NH, continuous vertical profile data were acquired to 515m bottom depth-permitting. These data are available here in various formats to accomodate the end users. SIO-CalCOFI uses Microsoft Access as their relational database for data processing and quality control. Unfortunately, Microsoft Access has a 2 gigabyte filesize limit so it is necessary to split the upcast & downcast into two MS Access databases. 2024 update: a single upcast+downcast SQL Server Express Database is now available. Bottle data, used to correct the sensor data, are appended at the matching depths. Please refer to the CTD database readme files for column format information or refer to the database index page HERE.
Upcast & downcast 1m binavg CTD csv files are generated each cruise. Once certified final ie gone through the SIO-CalCOFI data-quality processing, these data can be imported into the upcast or downcast database tables.
These files can be found in the db_csvs folder of the FinalQC CTD data files available on calcofi.org HERE
CalCOFI CTD Data are available in three zipped filetypes:
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Please note that CTD data from Mar 1990 - 1991 were system & feasibility tests; 1992 CTD casts were performed on daily prodo stations only. The first complete cruise using the CTD-Rosette was August 1993 - CalCOFI 9308NH Another important note: the Windows-version of Seabird's SBE Data Processing Suite will not work on CTD data collected from 1990 to mid-1998. Those data must be processed by the DOS version of Seasoft, which can be successfully run in DOSBox on Windows 7 & 10. |
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First complete CalCOFI cruise using CTD-Rosette on all stations was 9308NH (Aug 1993). The Seabird 911 CTD was first tested in Mar 1990 (9003JD) but still under development. Niskin, Nansen, & "Wally" (in-house design by Walt Bryant & George Anderson) bottles with reversing thermometers were the primary method of seawater sampling until 9308NH. As confidence in data quality, time-series continuity and relability improved, the CTD-rosette was used for daily primary productivity sample collection casts (6 depths) in 1992: 9202JD, 9208NH, & 9210NH. Some older cruises may not have final data available since they are being reprocessed using the current data-processing methodology for data-format continuity. All raw Raw CTD Data data files are available but processed - either preliminary or final bottle-corrected - will be posted when completed. |
2022 Cruises: Tentative Schedule (dates subject to change, check back often)
Completed Cruises:
The graphic below is a reproduction from an article in which researchers at SIO are corroborating these predictions with observations.
El Niño is an abnormal warming phase in the Pacific Ocean Sea Surface Temperature (SST), while the abnormal cooling is known as La Niña - these shifts are part of the El Niño Southern Oscillation or ENSO. The current ENSO phase is often quantized by a deviation from normally observed SST using the Oceanic Niño Index or ONI. While El Niño and its counterpart cooling phase La Niña are still being researched, the seasonal effects are becoming well understood with long term data sets.
Using the table below from NOAA's Climate Prediction Center in conjunction with the CalCOFI database - can offer information on how the environment has reacted in response to the different phases and intensities of the ENSO.
Su | Mo | Tu | We | Th | Fr | Sa |
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1 | 2 | 3 | ||||
4 | 5 | 6 | 7 | 8 | 9 | 10 |
11 | 12 | 13 | 14 | 15 | 16 | 17 |
18 | 19 | 20 | 21 | 22 | 23 | 24 |
25 | 26 | 27 | 28 | 29 |
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CCE-LTER: California Current Ecosystem |
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See our Affilates page for more information and other contributors. For general questions & data inquiries contact CalCOFI at This email address is being protected from spambots. You need JavaScript enabled to view it. |