Author: James Wilkinson

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Distance = Distance from shore in nautical miles. The CalCOFI database includes a calculated distance-from-shore value used primarily for vertical section plots published in the hydrographic data reports. CalCOFI line coastline intercepts, digitized from Google maps, are tabulated below; the latitudes and longitudes are the origins (zero starting point) for vertical section plots. Line Sta (if…

IEH Index: SIO-CalCOFI Legacy Data Archive Format

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in Data Formats

The CalCOFI IEH archive includes two versions: observed data only (YYMMarch.ieh) and observed data plus interpolated standard levels (YYMMt.ieh). Interpolated data are added to allow standard depth comparisons & plotting when observed standard depths are not available. The IEH format was developed in 1982 as the final bottle data archive format for CalCOFI data. The…

Dissolved Organic Carbon & Total Nitrogen

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in LTER Sampling

CCE LTER analyzes and determins total organic carbon (TOC) and total nitrogen (TN) in sea water, expressed as micromoles of carbon (nitrogen) per liter of sea water. TOC (<200 µmol·L-1) includes both dissolved and particulate organic carbon (DOC and POC, respectively). TN (<50 µmol·L-1) includes particulate and dissolved organic nitrogen as well as dissolved inorganic…

0903FR Cruise Prospectus

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in DEPM 0903FR

CalCOFI 0903FR Cruise Prospectus (cruise announcement pdf) Current survey data & egg maps Loading Days: 14 – 15 Apr 2009, F/V Frosti at San Francisco Depart San Francisco on F/V Frosti 16 Apr 2009 Offloads in San Diego 9 May 2009 Station Plan: 38 central & northern CalCOFI stations are scheduled plus transects/stations in between standard lines occupied on 0903JD Number of Scientific Party: 6 scientists & technicians

0804JD Cruise Prospectus

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in 2008 Cruise Prospecti

Leg I : Departs San Diego on NOAA R/V David Starr Jordan 0800 24 Mar 2008. Returns to San Diego 9 Apr 2008. Sixty-six standard and 9 SCCOOS stations are scheduled for Leg 1. Leg 2 : Departs San Diego on NOAA R/V David Starr Jordan 0800 11 Apr 2008. Returns to San Diego 1 May 2008. Trawling and CUFES surveying to Pt Conception then CUFES and station work northward to Line 60…

Underway Data Processing

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in Methods

Underway Data Processing Methods 1. Navigate to Underway Data folder and join into a single file, do so using Advanced File Joiner or similar: http://download.cnet.com/Advanced-File-Joiner/3000-2094_4-169639.html a. CalCOFI collects its own data while aboard SIO ships (New Horizon). These are saved in the Events folder of the appropriate cruise. A single file name is similar to: 0901NHMETEV_06012009.csv. Although each…

Casts.csv Index: SIO-CalCOFI Data Processing Format

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in Data Formats

SIO-CalCOFI data file casts.csv is the main hydrographic station information data file used by our data-processing software.

CTD General Practices

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in Methods

CTD General Practices: System Description, Deployment, Data Aquisition, & Maintenance SUMMARY: Since 1993, the CalCOFI program has deployed a Seabird 911 CTD mounted on a 24-bottle rosette during seasonal, quarterly cruises off California. The CTD-rosette is lowered into the ocean to 515m, depth-permitting, on 75 hydrographic stations using the ship’s conductive-wire winch. Data from the…

Station Operations

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in Field Work

Station Operations Scientific operations on CalCOFI cruises are scheduled 7/24 – around the clock 7 days a week. Scientists, technicians, and volunteers typically work 12hr shifts scheduled from noon to midnight or midnight to noon. In good weather, the ship transits at ~10kts to minimize ship noise in the fisheries acoustics data. Transits between stations…

ISUS Nitrate History

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