R/V Atlantis Calliope metadata file
Mon 16/Jan/2006 15:27:21
Current time zone: GMT Standard Time
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Depth (12 kHz)  ( Depth12)

12 kHz depth (meters) from sea surface obtained by Knudsen bathymetry system.
See Knudsen Bathymetry information for sound spped and transducer depth corrections;
normally based on 1500 m/s sound speed & corrected for 5.95 meter (19.5 ft) transducer depth.
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Depth (3.5 kHz)  ( Depth35)

3.5 kHz depth (meters) to sea surface obtained from Knudsen bathymetry system.
See Knudsen Bathymetry information for sound spped and transducer depth corrections;
normally based on 1500 m/s sound speed & corrected for 5.95 meter (19.5 ft) transducer depth.
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GPS Navigation data (GPS)
  Complete NMEA data output from the primary GPS receiver.

  The single digit following the position
  information in the GPS_GGA data string indicates the type of GPS fix as follows:
  0=No valid fix; 1=Standard; 2=Differential; 3=P-Code

  NMEA GPS_GGA data sentence:  Header , UTC of position, Latitude, N/S, Longitude, E/W,
  Quality indicator, Number of satellites in use, Horizontal dilution, Altitude, M (meters),
  Geoidal seperation, M (meters), Age of differential data (secs), Differential reference station I.D. * checksum.

  The single digit following the position information (quality indicator) indicates the type of position fix:
  0=No valid fix; 1=Standard; 2=Differential; 3=P-Code.

  NMEA GPS-VTG data sentence:  Header, Course, T (degrees true), Course, M (magnetic), 
  Speed, N (knots), Speed, K (km/hr) * checksum.

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GPS course over ground (GPS_COG)

Course over ground (true) obtained from NMEA GPS_VTG
data sentence.

NMEA GPS-VTG data sentence:  Header, Course, T (degrees
true), Course, M (magnetic), Speed, N (knots), Speed,
K (km/hr) * checksum.

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GPS speed over ground (GPS_SOG)
Speed over ground (knots) obtained from NMEA GPS_VTG
data sentence.

NMEA GPS-VTG data sentence:  Header, Course, T (degrees
true), Course, M (magnetic), Speed, N (knots), Speed,
K (km/hr) * checksum.


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GPS type (GPS_TYPE)
GPS position type (Std, Diff, P-Code)

  GPS position type indicator is obtained from the "quality indicator" included as part of
  the NMEA GPS_GGA data sentence.  This value applies to the present primary GPS
  fix only and it is not necessarily an indication of the type of GPS receiver in use.  See
  notes associated with the GPS data item.


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Gill Acoustic Wind Sensor  ( Wnd_Gill)

Gill WindObserver II Ultrasonic Anemometer
Format:  <stx>id,U axis,V axis,units,sos,temp,status,<etx.>cs
  stx = \002, etx = \003, cs = check sum  (these items may be deleted)
  id = sensor identification
  U & V axis wind speed (meters/sec)
  units = M (meters)
  sos = speed of sound (m/sec)
  temp = air temperature (C)
  status: 0 =  OK & 60= heater enabled & OK
         (any other value indicates a possible problem)

Setup:
*id enters setup mode, Q exits setup mode, ? initiates polled mode
D1 => serial #,  D3 => setup information
id => data in polled mode (<cr><lf> not required)

Nx         id = "x"
Mn        Operating mode
Gnnnn    Averaging period
An         SOS & Temp output
Un         Units
Hn         Heater enable
Xn         Axis alignment
BnFnEn Com protocol

Calliope default:
NX M3 G0015 A3 U1 H2 X1 B3 F1 E1 
id=X, polled UV mode, 15 sec average, meters/sec
sos & temp output, heater active, U axis alignment
9600,N,8,1,full duplex
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Gyro heading (Gyro)
Format: Heading(degrees true)
Ship's heading (degrees true) obtained from the HEHDT primary sensor.

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IMET Air Temperature (Air_Temp)
Format: Temp (C)

Data is obtained from IMET_HRH primary sensor.
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IMET Barometric Pressure (IMET_BPR)
Format:  Barometric pressure (milli-bars)

Sensor installation dates:
  March 5, 2003  (Jacksonville, Fla.)
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IMET Humidity (IMET_HRH)
Format:  Humidity (%RH), Temperature (C)

Note - IMET air temperature (Air_Temp) is obtained from this instrument.

Sensor installation dates:
  March 5, 2003 (Jacksonville, Fla.)
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IMET Precipation (IMET_PRC)
IMET_PRC  Precipitation (millimeters)
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IMET Shortwave Radiation (IMET_SWR)
Format:  Radiation (watts/square meter)
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IMET Wind (IMET_WND)
Format: X, Y, Total, Max, Min, LastVane, LastCompass, C1, C2

	Wind X (m/sec), Positive for a stbd to port wind
	Wind Y (m/sec), Positive for a bow to stern wind
	Wind Total (m/sec), Averaged over previous minute
	Wind Max (m/sec, 15 sec interval),
	Wind Min (m/sec, 15 sec interval),
	Last Vane Reading (deg),
	Last Compass Reading (deg),
	Counter1 ("0"), Counter2 ("4")
	
	Note - Wind direction is no longer provided as a
	  single quantity.  Direction values are ship relative.
	  The wind sensor does not have a compass installed.
	  (LastCompass should always be 0.0).

Sensor installation dates:
  March 5, 2003
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IMET relative humidity (HRH)
Format:	  Humidity (%RH)

Data is obtained from IMET_HRH primary sensor.
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Knudsen bathymetry  ( Knudsen)

Depth to surface (meters).
Format:
   $PKEL99,xx.xx,cc.cc,yy.yy,cc.cc,ssss,lat,lon
	xx.xx  12 kHz depth to surface using cc.cc & ssss corrections (meters)
	cc.cc  depth of 12 kHz transducer (meters)
	yy.yy  3.5 kHz depth to surface using cc.cc & ssss corrections (meters)
	cc.cc  depth of 3.5 kHz transducer (meters)
	ssss    sound speed used for depth calculations (m/s) 
	Lat     Latitude
	Lon    Longitude

Note - 12 kHz and 3.5 kHz transducers are at same depth on Atlantis.
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Latitude (GPS_Lat)
GPS_LAT   GPS Latitude
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Longitude (GPS_Lon)
GPS_LON   GPS Longitude
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NMEA Gyro (HEHDT)
  Ship's heading obtained from the Sperry Gyro.
  NMEA format:  Header ($HEHDT), Heading (degrees), T (true), Heading (degrees), M (magnetic) * checksum.

  Version 2.20 (1/1/97) of the NMEA 0183 standard does not show magnetic heading in this data sentence and the
   validity of this item is questionable.

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NorthStar941  GPBWR  ( GPBWR_5006)
NorthStar 941 receiver's Bearing & Distance to Waypoint
NMEA sentence. This data is normally only used to provide a
real time waypoint data display.

Format: $--BWR,hhmmss.ss,lat,a,lon,a,x.x,T,x.x,M,x.x,N,c--c*hh<cr><lf>
  time = UTC of observation
  Lat & Lon of waypoint
  x.x,T = true bearing to waypoint
  x.x,M = magnetic bearing to waypoint
  x.x,N = nautical miles to waypoint
  c--c = waypoint ID
  *hh = checksum
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NorthStar941 GPRMC  ( GPRMC_5006)
NorthStar 941 GPS receiver NMEA output

Format:
 $--RMC,hhmmss.ss,S,lat,a,lon,a,x.x,y.y,ddmmyy,m.m,d*hh<cr><lf>
  Time = UTC of position fix
  S = Status ("A" = valid, "V" =  receiver warning)
  Lat & Lon
  x.x = speed over ground (knots)
  y.y = Course over ground (degrees true)
  ddmmyy = date
  m.m,d = magnetic variation, degrees ("E" subtracts from true, "W" adds to true)
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NorthStar941 GPZTG  ( GPZTG_5006)
NorthStar941 GPS receiver UTC & Time to Waypoint NMEA output.
This data is normally used to provide real time waypoint data display.

Format: $--ZTG,hhmmss.ss,hhmmss.ss,c--c*hh<cr><lf>
  UTC time of observation
  Time-to-go to waypoint
  c--c = Waypoint ID
  *hh = checksum
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Position from GPS receiver (Lat_Lon)
  Format: decimal Latitude, N/S, decimal Longitude, E/W

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SBE45 conductivity  ( SBE45C)

SBE45 Conductivity S/m
Saltwater supplied by ship's system (intake midships).
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SBE45 salinity  ( SBE45S)

SBE45 Salinity PSU
Seawater supplied by ship's system (midship sea chest intake).
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SBE45 sound velocity  ( SBE45V)

SBE45 surface sound velocity (m/sec)
Seawater supplied by ship system (midship sea chest intake).
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SBE45 temperature  ( SBE45T)

SBE45 temperature (degrees C)
Seawater supplied by ship system (midship sea chest intake).
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SBE45 thermosalinograph  ( SBE45)

SBE45 thermosalinograph (serial# 0122)
Installed July 4, 2005
Seawater supplied by ship's system (midship sea chest intake).
Format:  ttt.tttt, cc.ccccc, sss.ssss, vvvv.vvv
  t = temperature (degrees C)
  c = conductivity (S/m)
  s = salinity (psu)
  v = sound velocity (m/sec)
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Salinity (Salinity)
 Format:   ss.ssss
 Salinity calculated from SSTMP and SSCND data values in accordance with UNESCO 44.
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Sea Surface Conductivity (SSCND)
Format:     Sea surface conductivity (mmho/cm)

Sensor installation dates:
  July 01, 2005 (Seattle Wa.)
  Cal 6/05
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Sea Surface Temperature (SSTMP)
Format:     Sea surface temperature (C)

Falmouth Scientific
Sensor installation dates:
  Aug 01, 2005 (Seattle, Wa)
 Cal  6/05
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Sound velocity (SSV)

Sea surface sound velocity (meters/second) calculated from
SSTMP and SSCND data values.  Intermediate salinity calculations
are made in accordance with UNESCO 44.

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True wind direction (Wnd_Dir)

Wind:
	  * * * 01/31/96 Revision: * * *
	  Wind Y (m/sec), Wind X (m/sec), Wind Total (m/sec),
	  Wind Max (m/sec, 15 sec interval),
	  Wind Min (m/sec, 15 sec interval),
	  Last Vane Reading (deg),
	  Last Compass Reading (deg),
	  Counter1 ("0"), Counter2 ("4")
	  Note - Wind direction is no longer provided as a
	  single quantity.  Direction values are ship relative.
	  The wind sensor does not have a compass installed.
	  (value should always be 0.0).

	  WHOI ship installation convention:
	  "Wind Y" is positive for a stbd to port wind.
	  "Wind X" is positive for a bow to stern wind.



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True wind speed (Wnd_Spd)

Wind:
	  * * * 01/31/96 Revision: * * *
	  Wind Y (m/sec), Wind X (m/sec), Wind Total (m/sec),
	  Wind Max (m/sec, 15 sec interval),
	  Wind Min (m/sec, 15 sec interval),
	  Last Vane Reading (deg),
	  Last Compass Reading (deg),
	  Counter1 ("0"), Counter2 ("4")
	  Note - Wind direction is no longer provided as a
	  single quantity.  Direction values are ship relative.
	  The wind sensor does not have a compass installed.
	  (value should always be 0.0).

	  WHOI ship installation convention:
	  "Wind Y" is positive for a stbd to port wind.
	  "Wind X" is positive for a bow to stern wind.


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True wind speed & direction (TWind)

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WetLabs fluorometer  ( WStar)
 Chlorophyll - Ex: 460 nm, Em: 695 nm,
 Sensitivity: >=0.03 mg/l
 Dynamic range: 0.03-75 mg/l
 Output 0-5 volts

WS3S-582P (July 4, 2005)
WET Labs WETStar fluorometer installed in the ROV Hanger using ship's
saltwater supply.
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WETLabs Sea Surface Fluorometer  ( WStar2)
Chlorophyll - Ex: 460 nm, Em: 695 nm,
 Sensitivity: >=0.03 mg/l
 Dynamic range: 0.03-75 mg/l
 Output 0-5 volts

WS3S-901P (January 2005)
WETLabs WETStar fluorometer installed in the Hydrolab using clean seawater supply.
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Defined constants:
 
CruiseID = AT11-30
WindSensorOffset = 0.0


