alongtrack
        PI:           J.Manning
       Dataset:       shipboard  data
       Ship:          as shown in data


   Parameter        Description                      Units 
   ----------------------------------------------------------
      yrday1_local  GMT yearday               fractional yearday
      lat           latitude                  decimal degrees
      lon           longitude                 decimal degrees
      airtemp       air temp                  degrees C
      ss5temp       hull mounted temp (5m)    degress C
      sal           surface salinity          PPT
      fluoro        fluorescence              volts
      ewind         eastward wind (corrected) nauts
      nwind         nthward wind (corrected)  nauts

  1. These data are accessed under the the GLOBEC homepage-->data-->process-->{year}-->alongtrack
  2. These are single ascii files per cruise with several variables merged to one minute (interpolated) time steps. The user should be aware of the availability of the unmerged "raw" data at http://www.wh.whoi.edu/~albscs (for Albatross data) if they want the actual data which, for some sensors/variables, was recorded as frequently as every 5 seconds and by more than one instrument. Contact Jim Manning for authorization to access these data.
  3. The first column is the time stamp which, for Albatross convention, is "yrday1_local" which means, for example, that a time of "1.5" represents local noontime on Jan 1st. Note that the "Albatross convention" may change so the user must pay attention to the time stamp variable name in the future cruises.
  4. I have been processing Albatross alongtrack data on an "as requested" basis so just let me know when you want a particular cruise that is not already posted.
  5. We all understand this data (shipboard temp, salt, wind, etc.) should be treated as uncalibrated records and should not be used other than exploratory purposes.
alongtrack EN261_alongtrack
	PI:	P. Wiebe
	Dataset:	Alongtrack data (CTD, MET & navigation)
	Cruises  EN261

Parameter	Description			Units

gmtyear GMT year gmtmonth GMT month gmtday GMT day gmttime GMT time lat latitude decimal degrees lon longitude decimal degrees temp temperature degrees C sal salinity practical salinity units flvolt fluorometer volts lat2 secondary latitude decimal degrees lon2 secondary longitude decimal degrees paws port apparent wind speed knots saws starboard apparent wind speed knots pawa port apparent wind azimuth degrees sawa starboard apparent wind azimuth degrees airtemp air temperature degrees C humidity relative humidity percent metpress barometric pressure millibars ssltemp sea surface temperature degrees measured 1 meter below the surface ss5temp sea surface temperature degrees measured 5 meters below the surface csdepth chirp Sonar depth below meters transducer fspdw forward speed with respect to knots the water sspdw starboard speed with respect to knots the water fspdb forward speed with respect to knots the bottom sspdb starboard speed with respect to knots the bottom sldepth speed log depth below the meters transducer head ship's heading degrees head2 alternate ship's heading degrees mqual Magellan GPS quality indicator msmg Magellan GPS speed made good knots mcmg Magellan GPS course made good degrees tqual Trimble GPS quality indicator tsmg Trimble GPS speed made good knots tcmg Trimble GPS course made good degrees
EN261_alongtrack