SCOPE Data Format Document
                         for 2018 HOT LAVA cruise
                             August 28, 2018



1. Cruise Summary

   Summarizes the CTD casts taken during this cruise.

   Columns :

     Stn  : Station number
     Cast : Cast number
     Date : GMT date at start of CTD cast
     Time : GMT time at start of CTD cast
     Latitude/Longitude : Location at start of CTD cast
     Depth : Deepest depth sampled during this cast
     Bottles : Number of 12L Niskin bottles tripped



2. Up & Downcast CTD

   CTD data was collected using a SeaBird 9-11plus CTD at
   the maximum sampling rate of 24 samples per second (i.e.
   24 Hz). Data were screened for errors and processed to
   1-decibar averages. CTD oxygen was calibrated using
   discrete bottle dissolved oxygen samples taken during
   the cruise. CTD fluorescence was calibrated using 
   discrete chlorophyll samples taken and analyzed on a 
   Turner Designs model 10-AU.

   File format : lava<cruise #>s<stn #>c<cast #><up/dn>.ctd

   Columns :

     CTDPRS  : Pressure [decibars]
     CTDTMP  : Temperature [deg C]
     CTDSAL  : Salinity [PSS-78]
     CTDOXY  : Oxygen [umol/l]
     CHLPIG  : Chloropigment (i.e. CTD Fluorescence) [ug/l]
     BEAM.AT : Beam Attenuation [1/m]
     XMISS   : Transmission [%]
     NumObs. : Number of 24-Hz samples
     QUALT1  : Quality of measurement

    Quality :

      1 : Not quality controlled
      2 : Good
      3 : Questionable 
      4 : Bad
      5 : Missing
      9 : Not taken



3. Core Water Column data

   This file contains averaged CTD data at every Niskin bottle 
   trip as well as the (SCOPE)core water column data. The 
   location of the ship when the cast was started is also 
   included. Missing data are filled with -9. Variables having 
   asterisks in their heading have a quality flag associated 
   with them.
 
   Columns :

     STNNBR  : Station number
     CASTNO  : Cast number
     ROSETTE : Rosette position
     LAT     : Latitude [deg N]
     LON     : Longitude [deg W]
     CTDPRS  : CTD Pressure [decibars]
     CTDTMP  : CTD Temperature [deg C]
     CTDSAL  : CTD Salinity [PSS-78]
     CTDOXY  : CTD Oxygen [umol/kg]
     CTDCHL  : Chloropigment (i.e. CTD Fluorescence) [ug/l]
     THETA   : Potential Temperature [deg C]
     SIGMA   : Potential Density [kg/m3]
     OXYGEN  : Bottle Dissolved Oxygen [umol/kg]
     DIC     : Dissolved Inorganic Carbon [umol/kg]
     ALKALIN : Alkalinity [ueq/kg]
     PH      : pH [total scale]
     PHSPHT  : Phosphate [umol/kg]
     NO2+NO3 : Nitrate + Nitrite [umol/kg]
     SILCAT  : Silicate [umol/kg]
     LLN     : "Low-level" Nitrogen [umol/kg]
     LLP     : "Low-level" Phosphorus [umol/kg]
     PC      : Particulate Carbon [umol/kg]
     PN      : Particulate Nitrogen [umol/kg]
     PP      : Particulate Phosphorus [nmol/kg]
     PSi     : Particulate Silica [nmol/kg]
     CHL A.  : Fluorometric Chlorophyll a [ug/l]
     PHEO.   : Pheopigments [ug/l]
     H.BACT  : Heterotrophic Bacteria [# * 10^5/ml]
     P.BACT  : Prochlorococcus [# * 10^5/ml]
     S.BACT  : Synechococcus [# * 10^5/ml]
     E.BACT  : Eukaryotes [# * 10^5/ml]
     QUALT1  : Quality flags for CTDTMP - OXYGEN
     QUALT2  : Quality flags for DIC - SILCAT
     QUALT3  : Quality flags for LLN - PSi
     QUALT4  : Quality flags for CHL A. - E.BACT

    Quality :

      1 : Not quality controlled
      2 : Good
      3 : Questionable 
      4 : Bad
      5 : Missing
      9 : Not taken



4. Surface PAR

   Photosynthetically active radiation (PAR) at the sea surface 
   was measured using a LiCOR LI-1500 data logger and cosine 
   collector. The instrument recorded data from the time the ship 
   departed the Harbor until its return.

   Columns :

     Record : sequential data acquisition number
     Date/Time : local date/time (HST)
     LIGHT  : 1-min averaged PAR [uE/m^2/s]
     MIN    : minimum light value during 1-min interval [uE/m^2/s]
     MAX    : maximum light value during 1-min interval [uE/m^2/s]
     CHK    : ?