Browsing CalCOFI Methods by Issue Date

Now showing items 21-30 of 30

    • Satlantic ISUS Operation. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2017)
      Setting up and using the ISUS with Seabird CTD

    • CTD Data Algorithms. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2017)
      CalCOFI CTD data, particularly the thermodynamic properties, are computed by Seasoft based on EOS-80. Temperatures, typically from the primary temperature sensor, are merged with bottle sample data into station files which ...

    • CalCOFI CTD FAQ. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2017)
      General practices & notes on CalCOFI's Seabird 911/911+ CTD-Rosette

    • CalCOFI bottle sampling. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2018)
      The CalCOFI CTD-rosette is equipped with a Sea-Bird Electronic carousel water sampler (SBE 32), a computer-driven, electro-magnetically-released latch system. The 24 ten-liter plastic (PVC) bottles, equipped with epoxy-coated ...

    • Bottom Depth Echo-Sounding Correction. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2018)
      CalCOFI has always corrected bottom depths reported using Carter Tables 50 & 51 for the CalCOFI operations area, California's west coast.

    • Reporting Decimal Line.Sta Numbers. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2018)
      Historically, when designing the original CalCOFI Line.Stations pattern, the transect lines were plotted perpendicular to the coastline with .0 decimal accuracy. Since reporting lines and stations with decimal accuracy ...

    • CTD Data Processing Protocol. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2019)
      Please note, the processing methods described use SIO-CalCOFI-developed software (DECODR & BtlVsCTD) to merge and correct Seabird 911+ CTD data with bottle samples. The Seasoft portion of our data processing protocol follow ...

    • Updating CalCOFI Hydrographic Database. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2019)
      How to update the CCDB Hydrographic Database in MySQL In addition to ERDDAP, SIO-CalCOFI has a smaller, queryable, online, hydrographic database. This query form includes bottle-related data only and resides at ...

    • Hytech Salinometer. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2019)
      Prior to CalCOFI's use of Guildline's Autosal and Portasal, different instrumentation or techniques were used to measure seawater sample salinities. When I first participated in cruises in the mid-1980's, salinities were ...

    • Primary Productivity Methods. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2020)
      Primary production is estimated from 14C uptake using a simulated in situ technique in which the assimilation of dissolved inorganic carbon by phytoplankton yields a measure of the rate of photosynthetic primary production ...