ship_underway

 PI:              Robert Anderson
 of:              Lamont Doherty Earth Observatory
 dataset:         shipboard underway data
 project/cruise:  AESOPS/NBP-96-4A - Ross Sea Process 1 Cruise
                  AESOPS/NBP-96-5
                  AESOPS/NBP-97-1
                  AESOPS/NBP-97-3
                  AESOPS/NBP-97-8
                  AESOPS/NBP-98-2
 ship:            Nathaniel B. Palmer

 Methodology:
  No one was funded to collect these data, and quality control is
  limited to that which was provided by ASA.  The data files were
  submitted by the AESOPS project coordinator.

  Data were collected in one file per day, with time kept in GMT.
  Missing data are represented by 9.99 or variant.


  Parameter      Description                   Units

  Cruise_ID      cruise ID number              dimensionless
  Cruise_Name    commonly used cruise name     dimensionless
  yrday          calendar day of year          days
  date           GMT date                      yyyymmdd
  time           GMT time                      hh:mm:ss
  lat            NGL Latitude                  decimal degrees
  lon            NGL Longitude                 decimal degrees
  speed_ship     Ship speed (over ground)      knots
  hdop_gps       GPS HDOP
  hdg_gyro       Gyro heading                  degrees
  CMG            CMG (course made good)        degrees
  PAR            PAR                           microEinsteins/m^2/sec
  SST            Sea surface temperature       degrees C
  cond           Conductivity                  Seimens/meter
  sal            Salinity (PSS-78)             dimensionless
  depth_ocean    Water Depth (uncorrected)     meters 
  wind_sp        Wind speed                    meters/sec
  wind_dir       Wind direction                degrees
  temp_air       Air temperature               degrees C
  humidity       Relative Humidity             percent
  press_bar      Barometric pressure           millibars
  fluor_1        Fluorometer                   volts
  fluor_2        Fluorometer                   volts