Now showing items 14-30 of 30

    • 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 ...
    • ISUS Nitrate history. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2017)
      The original methods description was written Feb 2010 by J. Wilkinson. Changes to the method or instrument are listed below.
    • ISUS Nitrate sensor. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2015)
      Since November 2004, a Satlantic ISUS nitrate sensor has been integrated with a Seabird 911+ CTD-Rosette system deployed on CalCOFI cruises. Cruises typically occupy 75 stations, collecting approximately 1400 discrete ...
    • Line.Sta Algorithms. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2014)
      Converting between geographic coordinates in latitude and longitude and the line and station sampling pattern of the California Cooperative Fisheries Investigations (CalCOFI) program is a commonly required task for conducting ...
    • Methods Timeline. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2017)
      CalCOFI Time Series data are over 67 years old. New adopted practices, methods, software and hardware are thoroughly tested to maintain dataset continuity as the program & science evolves. Core measurements are maintained ...
    • NCOG Sampling Method. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2015)
      NCOG Sampling For DNA and RNA Samples for NCOG Project
    • Nutrient methods. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2015)
      The phytoplankton macro nutrients nitrate, nitrite, silicate, and phosphate in seawater are analyzed using colorimetric assays. Ammonium concentrations are determined using a fluorometric assay.
    • Primary Productivity History. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2017)
      A description of the method was written February 2010 by D. Wolgast. Changes to the method are listed below.
    • 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 ...
    • Primary Productivity Protocol. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2014)
      PRE-CRUISE PREPARATIONS 1. Check well in advance of cruise to be sure there is enough isotope ready to be used. This amount may vary depending on specific activity desired. Also, check scintillation fluid and all ...
    • 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 ...
    • Salinity 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2014)
      This procedure describes the method for the determination of seawater salinity using a Guildline Portasal™ Salinometer (Model 8410).
    • Satlantic ISUS Operation. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2017)
      Setting up and using the ISUS with Seabird CTD
    • Scintillation Counter 2008. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2014)
      New(er) Beckman LS 6000IC (SysID# 231220) scintillation counter donated to SIO-CalCOFI by NOAA in early 2008. Repaired by SIO-CalCOFI and in service Oct 2008, replacing our broken/non-repairable Beckman LS 1801.
    • SeasaveV7 Setup & Data Acquisition. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2017)
      SeasaveV7 on Windows 7 CTD Operator's Cookbook
    • Underway Data Processing. 

      CalCOFI (California Cooperative Oceanic Fisheries Investigation, La Jolla, CA, 2016)
      Underway Data Processing Methods
    • 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 ...