File: lmg_met1m.mat  

Contents: Basic underway ship-board meteorological and sea surface
          temperature, salinity, and fluorense data collected on 
          LMG02-1A.
                                     
Date: February 26, 2002 

Source: JGOF file jgyd.dat placed on ship's DAS_DATA drive 
        (Q:\current_cruise\geopdata\JGOF\) at the end of each day.
        
Processing: 1. Simple conversion from JGOF format into MatLab variables,
	       removing pad values, and constructing complete 1-min time
	       series for those days with very small data gaps. Larger
	       gaps, like the many hour gap in the thermosalinograph
	       data (sst,sss) and fluoromter when the instruments are 
	       turned off while at Palmer Station are filled with NaNs.

	    2. The short-wave radiation data (sw) has a large negaitve
	       offset during night. This bias appears to get larger
	       during the cruise. Overall, the sw record suggests that
	       most days were marked by quite low sw values.
	       Significant sw was measured only when the sun was high
	       and there were no clouds or low level overcast present.
               The sw data should be viewed with caution until the sensor
               is recalibrated at Eppley after the cruise.

            3. The wind speed and direction data should be considered as
	       prelimary and subject to some contaimination by the
	       ship's motion.

	    4. The JGOFS wind direction convention is meteorological,
	       i.e., wd is the direction measured clockwise from true N
	       that the wind is coming from.  We include here the
	       oceanogaphic convention wind direction wdr, i.e., the
	       direction measured counterclockwise from E that the wind
	       is blowing towards (the wind vector direction).

Sample rate: 1 min

Start time:   February 6, 2002  20:25 GMT
Stop time:    March 1, 2002     23:59 GMT
  
******* TIME SERIES *************************************************                   

  x - longitude (deg E)
  y - latitude (deg N)
  t - 2002 yearday (00Z Jan 1 = 1)
  z - depth (m)
  sog - speed over ground (m/s)
  gyro - ship's heading (deg N)
  
  sst - sea temp (oC) 
  sss - sea surface salinity (PSU) 
  fluor - fluorescence (V) 
  
  at - air temp (oC) 
  bp - barometric pressure (mbars)
  rh - relative humidity (%) 
  ws - wind spreed (m/s)
  wd - wind direction (met convention) (deg CW wrt N)
  wdr - wind direction (ocean convention) (deg CCW wrt E)
  u - east wind speed (m/s)
  v - north wind speed (m/s)
  sopar - par (mEi/m^2s)
  sw - incident shortwave radiation (W/m^2)
  lw - incident longwave radiation (W/m^2)
  
***********************************************************************