R/V Oceanus Calliope metadata file Wed 11/Aug/2010 17:10:27 Current time zone: GMT Standard Time ================================================== 12kHz depth (Depth12) Format: xxxx.x (meters) Depth in meters obtained from the Knudsen 12 kHz channel. 4 meter transducer depth correction has been applied (see Knudsen bathymetry data string). __________________________________________________ 3.5kHz depth (Depth35) Format: xxxx.x (meters) Depth in meters obtained from the Knudsen 3.5 kHz channel. 4 meter transducer depth correction has been applied (see Knudsen bathymetry data string). __________________________________________________ Air temp; Port WXT520 (WXTP_Ta) Ta = Air temperature, degrees C Data obtained from Vaisala WXT520 mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ Air temperature; Stbd WXT520 (WXTS_Ta) Ta = Air temperature, degrees C Data obtained from Vaisala WXT520 mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ Air temperature (AT) Format: xx.xx (degrees C) Air temperature from primary source (WXTS520). __________________________________________________ Air Temperature; IMET HRH (IMET_AT) Format: xx.xxx (degrees C) Data is obtained from IMET_HRH primary sensor. Sensor is mounted on the forward mast, centerline, 15m above the waterline. __________________________________________________ Air temperature, PTU (PTU_AT) Degrees C Data obtained from Vaisala PTU200 sensor mounted on the forward mast, 15m above the waterline. __________________________________________________ Ashtech Heading, Pitch & Roll (PASHR) $PASHR,ATT NMEA string Format: $PASHR,ATT,tttt.t,hhh.hh,+ppp.pp,+rrr.rr,mrms,brms,x tttt.t = GPS time in seconds of week hhh.hh = Heading (degrees) ppp.pp = Pitch (degrees) rrr.rr = Roll (degrees) mrms = Measurement rms error in meters brms = Baseline rms error in meters x = Attitude reset flag Example: $PASHR,ATT,153663.5,092.09,-000.48,+000.04,0.0027,0.0103.0 Pitch - Bow up is positive; Roll - Port side up is positive MRMS is the average double difference carrier phase residual. Typical values are 2-3 millimeters BRMS is the RMS error for the differences between calibrated baseline magnitudes and computed baseline magnitudes for the three vectors formed by Antenna 1 to the other three antennas. Typical values are 1-3 cm but will increase under high PDOP conditions. Attitude reset flag: 0 = attitude computed correctly, pitch and roll are valid; 1 = attitude ambiguities have not been solved; pitch & roll set to 0.0 __________________________________________________ Baro press; Port WXT520 (WXTP_Pa) Pa = Barometric pressure, hPa Data obtained from Vaisala WXT520 Sensor is mounted on the forward mast, port side, 14.5m above sea level. Data has been corrected for sensor altitude. __________________________________________________ Barometric pressure; WXT (hPa) (WXT5_Pa) Pa = Barometric pressure, hPa Data obtained from Vaisala WXT520 Sensor is mounted on the forward mast, stbd side, 14.5m above sea level. Data has been corrected for sensor altitude. __________________________________________________ Barometric pressure (BPR) Format: xxxx.xx (hPa) Barometric pressure obtained from primary source (WXTS520). Value has been corrected for sensor height above sea level (.1185 hPa per meter, Oceanus = 14.5 m ). __________________________________________________ Barometric pressure - PTU (PTU_BPR) Barometric pressure, MilliBars Data obtained from Vaisala PTU200 sensor Sensor is mounted on the forward mast, 14.5 meters above sea level. Data is not corrected for altitude. __________________________________________________ Decimal Latitude (dec_lat) Latitude in decimal degrees obtained from the Furuno 1850 GPS receiver. Format: +/-dd.dddd (North is positive) __________________________________________________ Decimal Longitude (dec_lon) Longitude in decimal degrees obtained from the Furuno 1850 GPS receiver. Format: +/-ddd.dddd (East is positive) __________________________________________________ Distance to waypoint (BWR) (DTWP) Distance in nautical miles to the next waypoint. Value is obtained from the NMEA $GPBWR data output from the Furuno GP1850-WD GPS receiver. __________________________________________________ Distance to waypoint (RMB) (WP_Dist) Distance in nautical miles to the next waypoint. Value is obtained from the NMEA $GPRMB data output from the Furuno GP1850-WD GPS receiver. __________________________________________________ EDO speedlog (SPDLG) NMEA VLW, VBW & VHW data output VLW = Distance since reset (water & ground) VHW = Heading and speed (water relative) $VDVHW,a.a,T,b.b,M,c.c,N,d.d,K*hh a.a Heading (true) b.b Heading (magnetic) c.c Water speed (knots) d.d Water speed (km/hr) VBW = Water & ground referenced speed $VDVBW,a.a,b.b,A,c.c,d.d,Ae.e,A,f.f,A*hh A = Valid, V = Invalid a.a Longitudinal water speed (knots) b.b Transverse water speed (knots) c.c Longitudinal ground speed (knots) d.d Transverse ground speed (knots) e.e Stern transverse water speed (knots) f.f Stern transverse ground speed (knots) Transverse: "-" = port, Logintudinal: "-" = astern __________________________________________________ Sea Surface Conductivity (SSCND) Falmouth Scientific TSG (OCM-S-212) sea surface conductivity Format: xx.xxxx (mmho/cm or milli-Siemens/centimeter) OCM sensor is mounted in the bow thruster room on the suction side of the clean sea water distribution pump. Sea water intake is from a bow inlet located 4m below the waterline. __________________________________________________ Sea Surface Temperature (SSTMP) Falmouth Scientific TSG (OTM-S-212) sea surface temperature Format: xx.xxxx (degrees C) OTM sensor is mounted in the bow thruster room on the suction side of the clean sea water distribution pump. Sea water intake is from a bow inlet 4m below the waterline. __________________________________________________ GP1850 GPS BWR (GPBWR_GP1850) Furuno GP1850-WD NMEA GPBWR data output. $GPBWR,UTC,Lat,N/S,Lon,E/W,Bearing,T, Bearing,M, distance,N,ccc,mode*hh This string provides UTC time plus distance and bearing to next waypoint. T= true M=magnetic N=Nautical Miles ccc=waypoint ID Mode: Autonomous, Diff, Est, Manual input, Simulator, Not valid __________________________________________________ GP1850 GPS GGA (GPGGA_GP1850) Furuno GP1850-WD NMEA GPGGA data string. Format: $GPGGA,Time,Lat,N/S,Lon,E/W,FixQuality,NumSats,HDOP,Alt,M,GeoidAlt,DgpsUpdate,DgpsStation,Checksum Time: UTC time [17:08:34 UTC] Lat, N/S: Latitude in degrees and decimal minutes [4124.8963, N] Lon, E/W: Longitude in degrees and decimal minutes [08151.6838, W] FixQuality: 0 = Invalid 1 = GPS fix 2 = DGPS fix [1] NumSats: Number of satellites in view [05] HDOP: Horizontal dilution of precision [1.5] Alt,M: Altitude in meters above mean sea level [280.2, M] GeodAlt,M: Height of geoid above WGS84 ellipsoid [-34.0, M] DgpsUpdate: time since last DGPS update [blank] DgpsStation: DGPS station reference ID [blank] Checksum [*75] __________________________________________________ GP1850 GPS RMB (GPRMB_GP1850) Furuno GP1850-WD NMEA GPRMB data string. Format: $--RMB,DA,x.x,L/R,OID,DID,Lat,N/S,Lon,E/W,r.r,b.b,v.v,AS*hh DA = Data Status ("A" = valid, "V" = receiver warning) x.x = Cross trtack error (nautical miles) L/R = Direct to steer (left/right) OID = Origin waypoint ID DID = Destination waypoint ID Lat,N/S = Destination Latitude Lon,E/W = Destination Longitude r.r = Range to destination (nautical miles) b.b = Bearing to destination (degrees true) v.v = Destination closing veliocity (knots) AS = Arrival status (A=Arrival circle entered, V=not entered) hh = checksum This string allows calculation of time and distance to next waypoint. __________________________________________________ GP1850 GPS RMC (GPRMC_GP1850) Furuno GP1850-WD NMEA GPRMC data output. Format: $--RMC,hhmmss.ss,S,Lat,N/S,Lon,E/W,x.x,y.y,ddmmyy,m.m,E/W*hh 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,E/W = magnetic variation, degrees ("E" subtracts from true, "W" adds to true) hh = checksum __________________________________________________ GP1850 GPS ZTG (GPZTG_GP1850) Furuno GP1850-WD NMEA GPZTG data output. This string contains UTC time and time to waypoint #ccc. $GPZTG,hhmmss.ss,hhmmss.ss,ccc*hh __________________________________________________ GPS 90D RMC (GPRMC_90D) Furuno 90D GPS NMEA GPRMC data output. Format: $--RMC,hhmmss.ss,S,Lat,N/S,Lon,E/W,x.x,y.y,ddmmyy,m.m,E/W*hh 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,E/W = magnetic variation, degrees ("E" subtracts from true, "W" adds to true) hh = checksum __________________________________________________ Latitude (GPS_Lat) GPS Latitude formatted for display. Format: ddø mm.mmmm, N/S __________________________________________________ Longitude (GPS_Lon) GPS Longitude formatted for display. Format: dddø mm.mmmm, E/W __________________________________________________ GPS Navigational data (GPS) Complete NMEA data output from the primary GPS receiver (WGS84 datum). 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. (Lat & Lon values are "degrees minutes.decimal_minutes") NMEA GPS-VTG data sentence: Header, Course, T (degrees true), Course, M (magnetic), Speed, N (knots), Speed, K (km/hr) * checksum. The Primary GPS source is currently the Furuno GP1850-WD GPS. __________________________________________________ GPS type (GPS_TYPE) GPS position type (Std, Diff, P-Code) GPS position type indicator obtained from the "quality indicator" included as part of the GPS NMEA GGA data sentence. __________________________________________________ Gyro heading (Gyro) Ship's heading (degrees true) obtained from the Gyro NMEA HEHDT data sentence. Format: xxx.x (degrees true) __________________________________________________ IMET Precipitation (IMET_PRC) Format: x.xx (mm/hr) Data is obtained from the IMET precipitation sensor on the forward mast, 14.5m above the waterline. __________________________________________________ IMET Temperature (IMET_Temp) Temperature data from IMET temperature sensor. This sensor is not normally installed; temperature data is usually obtained from the IMET humidity sensor. Sensor is mounted on the forward mast, 15m above the waterline. __________________________________________________ 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 not 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). Sensor is mounted on the forward mast, 15m above the waterline. __________________________________________________ IMET Barometric Pressure (IMET_BPR) Format: xxxx.xx (milli-bars) Sensor is mounted on the forward mast, 15m above the waterline. Data is not corrected for sensor altitude. __________________________________________________ IMET Precipation - raw (IMET_PRC_Raw) Format: Last minute (mm/min) Last hour (mm/hr) Present level (mm) Data is obtained from the IMET precipatation sensor on the forward mast, 14.5m above the waterline. __________________________________________________ IMET Shortwave Radiation (IMET_SWR) Format: xxxx.x (watts/square meter) The Eppley Laboratory, Inc. precision pyranometer has a wavelength range of 0.3 to 3 um. Sensor is mounted on the forward mast, 15m above the waterline. __________________________________________________ IMET Humidity & Temperature (IMET_TH) Format: xx.xxx (%RH), xx.xxx (C) Note - Humidity and Air temperature data are both obtained from this instrument. Sensor is mounted on the forward mast, 15m above the waterline. __________________________________________________ True wind speed & direction (TWind) Format: Speed, Direction (meters/sec, degrees) Wind direction is given in meteorological terms; a 0 degree wind comes from the north. Ship speed and direction of travel are obtaned from GPS data (GGA SOG & COG). Sensor mounting orientation is corrected using the direction the ship is pointing obtained from the gyro (the ship is not necessarily moving in the direction its pointing). Sensor is mounted on the forward mast, 15m above the waterline. __________________________________________________ Knudsen bathymetry (PKEL99) Depth data obtained from the Knudsen bathymetry system. Values have been corrected for transducer depth (4 meters). Format: Header ($PKEL99), 12 kHz depth (meters), Transducer draft, 3.5 kHz depth (meters), Transducer draft, Speed of sound (m/s), Lat (dd mm.mmm N/S), Lon (ddd mm.mmm E/W) "Speed of sound" is the manually entered value used by the Knudsen to calculate depth. __________________________________________________ Latitude (Lat) Latitude obtained from primary GPS receiver expressed in degrees & minutes. (i.e. 4131.436,N is 41 degrees, 31.436 minutes North Latitude) Primary receiver is Furuno 1850D. __________________________________________________ Longitude (Lon) Longitude obtained from primary GPS receiver expressed in degrees & minutes. (i.e. 07040.336, W is 70 degrees, 40.336 minutes West Longitude) Primary receiver is Furuno 1850D. __________________________________________________ NMEA Heading (HEHDT) Ship's heading obtained from the best available source. 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. __________________________________________________ NMEA depth (PKDMS) Format: $PKDMS, xxxx.xx, f, xxx.xx, M, xxxx.xx, F *CS (f = Feet, M = Meters, F = Fathoms) 12 kHz Depth value from Knudsen bathymetery system in NMEA format. __________________________________________________ Position from GPS receiver (Lat_Lon) Latitude & Longitude in decimal degrees. Format: +/- dd.dddddd +/- ddd.dddddd (N & E are positive values) __________________________________________________ Precipitation (PRC) Data is from the WXTP_Rc. __________________________________________________ Pressure, Temperature, Humidity (PTU200) Vaisala PTU200 Format: pppp.p, tt.t, hh p = barometric pressure (mbar) t = temperature (degrees C) h = humidity (%) __________________________________________________ Course-over-ground; best source (COG) Course over ground (true) obtained from primary GPS receiver's NMEA GPRMC data sentence. Primary receiver is Furuno 1850D. Format: xxx.x (degrees) __________________________________________________ Speed-over-ground; best source (SOG) Speed over ground (knots) obtained from primary GPS receiver's NMEA GPRMC data sentence. Primary receiver is Furuno 1850D. Format: xx.xx (knots) __________________________________________________ Rain accum; Port WXT520 (WXTP_Rc) Rc = Rain accumulation, mm (accumulation is updated in 10 sec intervals) The accumulation value is reset only when the sensor power is reset. Data obtained from Vaisala WXT520 Sensor is mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ Rain accumulation; Stbd WXT520 (WXTS_Rc) Rc = Rain accumulation, mm (accumulation is updated in 10 sec intervals) The accumulation value is reset only when the sensor power is reset. Data obtained from Vaisala WXT520 Sensor is mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ Rain inten; Port WXT520 (WXTp_Ri) Ri = Rain intensity, mm/hour Data obtained from Vaisala WXT520. Sensor is mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ Rain intensity; Stbd WXT520 (WXT5_Ri) Ri = Rain intensity, mm/hour Data obtained from Vaisala WXT520. Sensor is mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ Rel humidity; Port WXT520 (WXTP_Ua) Ua = Relative humidity, % Data obtained from Vaisala WXT520. Sensor is mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ Relative humidity; Stbd WXT520 (WXT5_Ua) Ua = Relative humidity, % Data obtained from Vaisala WXT520. Sensor is mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ Rel wind dir; Port WXT520 (WXTP_Dm) Dm = Wind direction, deg (2 Hz samples, 10 sec average). A "0" deg wind comes over the bow, "90" deg comes over the stbd side. Data obtained from Vaisala WXT520 and has not been corrected for sensor mounting alignment error. Sensor is mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ Rel Wind direction; Stbd WXT520 (WXTS_Dm) Dm = Wind direction, deg (2 Hz samples, 10 sec average). A "0" deg wind comes over the bow, "90" deg comes over the stbd side. Data obtained from Vaisala WXT520 and has not been corrected for sensor mounting alignment error. Sensor is mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ Rel wind spd; Port WXT520 (WXTP_Sm) Sm = Wind speed average, m/sec (2 Hz, 10 sec sample period) Data obtained from Vaisala WXT520 Sensor is mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ Rel Wind speed; Stbd WXT520 (WXTS_Sm) Sm = Wind speed average, m/sec (2 Hz, 10 sec sample period) Data obtained from Vaisala WXT520 Sensor is mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ Relative humidity (HRH) Format: xx,xx (%) Relative humidity obtained from primary source (WXTS520). __________________________________________________ Relative humidity; IMET (IMET_HRH) Format: xx.xxx (%RH) Data is obtained from IMET_TH primary sensor. Sensor is mounted on the forward mast, 15m above the waterline. __________________________________________________ Relative humidity (PTU_HRH) Format: xx.xxx (%RH) Data obtained from Vaisala PTU200 sensor. __________________________________________________ SBE21 Temp & Cond (SBE21_TC) Temperature - degree C (-5 to +35, +/- 0.01) Conductivity - mmho/cm (0 to 70, +/- 0.01) 1 Siemens/meter = 10 mmho/cm __________________________________________________ SBE21 conductivity (sbe21C) Format: dd.ddd mmho/cm (0-70, +/- 0.01) Based on ITS90 temperature calculations 1 Siemens/meter = 10 mmho/cm __________________________________________________ SBE21 temperature (SBE21T) Format: dd.ddd degrees C (-5 to +35, +/- 0.01) Based on ITS90 calibration coefficients (T68 = 1.00024 * T90) __________________________________________________ SBE21 thermosalinograph (sbe21) Format: ttttcccc T & C raw frequency values (hex) Sensor is connected to the clean seawater system in the Wet Lab. __________________________________________________ SBE45 conductivity (SBE45C) Surface conductivity from SBE45 Format: cc.ccccc (mS/cm) (S/m*10 = mS/cm) __________________________________________________ SBE45 salinity (SBE45S) Surface Salinity from SBE45 Format: sss.ssss (psu) __________________________________________________ SBE45 sea temperature (SBE45T) Sea surface temperature from SBE45 Format: ttt.tttt (degrees C, ITS-90) __________________________________________________ SBE45 sound velocity (SBE45V) Surface sound velocity from SBE45 Format: xxxxx.xxx (m/sec) __________________________________________________ SBE45 thermosalinograph (SBE45) Serial #4530841-0063 Data Output Format: ttt.tttt, cc.ccccc, sss.ssss, vvvvv.vvv where t = temperature (degrees Celsius, ITS-90) c = conductivity (S/m) mS/cm = 10*S/m s = salinity (psu) v = sound velocity (meters/second) All data is separated with a comma and a space. Sensor is connected to the clean seawater system in the Wet Lab. See SSTMP or SBE48 for best sea surface temperature data. __________________________________________________ SBE48 SST (Continuous) (SBE48C) Format # xx.xxxx, date, time Sea surface temperature (C) measured through the hull with a magnetically coupled SBE48. Sensor is located in the bow at about the same location as the FSI thermosalinograph. Sensor housing is contained in an insulation jacket to limit effect of ambient bow chamber air. Date and time are provided by a clock internal to the sensor and are not likely to be accurate. __________________________________________________ SBE48 Sea surface temperature (SBE48T) Format xx.xxxx Sea surface temperature (C) measured through the hull with a magnetically coupled SBE48. Sensor is located in the bow at about the same location as the FSI thermosalinograph. Sensor housing is contained in an insulation jacket to limit effect of ambient bow chamber air. __________________________________________________ SBE48 sea surface temperature (SBE48) Format xx.xxxx C Sensor is attached to the hull in the bow chamber. Insulation jacket is installed. __________________________________________________ Salinity (Salinity) Format: Salinity (PSU) Salinity calculated from FSI sea surface temperature and conductivity data values in accordance with UNESCO 44. __________________________________________________ Sea surface fluorometer (Fluorometer) S/N WS35-1032P Cal Date: April 22, 2008 WetLabs Wet-Star fluorometer located in the Wet Lab clean seawater piping. A MetraByte A/D converter is used to convert the 0-5 vdc fluorometer output to serial data. This device sets the output decimal point as necessary for best resolution, which results in a 1 vdc fluorometer value being represented as +01000.00 in the raw MetraByte serial stream. **WetLabs Wet-Star fluorometer Specifications: Response time: 0.17 sec (analog); 0.125 sec (digital, optional) Input: 7-15 VDC Output: 0-5 VDC (analog); 0-4095 counts (digital, optional) Current draw: < 40 mA (analog); < 80 mA (digital, optional) Linearity: = 99% R2 Chlorophyll: Dynamic ranges: 0.03 -75 µg/l (standard); 0.06-150 µg/l (optional) Sensitivity: 0.03 µg/l Excitation: 460 nm Emission: 695 nm CDOM Dynamic ranges: 1000 ppb (estuarine waters) 250 ppb (near-coastal waters) 100 ppb (open ocean waters) Sensitivity: 0.100 ppb quinine sulfate dihydrate Excitation: 370 nm (10 nm FWHM) Emission: 460 nm (120 nm FWHM) Uranine Dynamic range: 0-4000 µg/l uranine Sensitivity: 1 µg/l uranine Excitation: 485 nm Emission: 532 nm Rhodamine Excitation: 470 nm Emission: 590 nm Phycoerythrin Excitation: 525 nm Emission: 575 nm __________________________________________________ Ship heading - true (HDT) Format: xxx.x (degrees) Ship's heading obtained from primary true heading source (ship's gyro). __________________________________________________ Ship speed (SPD) Ship speed in knots extracted from EDO Speedlog VHW data string. Format: xx.x (knots) Water relative __________________________________________________ Short wave radiation (SWR) Format: xxx.x watts/square meter Calibration @ 25 degrees C, Aug. 31, 2006 8.38 x 10-6 volts per watt/square meter Raw data is in micro-volts; Raw/8.38 = w/m2 Sensor is mounted on bow mast at a height of 15 m above the waterline. __________________________________________________ Shortwave radiation - Raw data (SWR_Raw) The precision pyranometer manufactured by Eppley Laboratory, Inc. has a wavelength range of 0.3 to 3 um. Sensor output voltage range is 0-10 milli-volts for typical SWR values of 0-1000 watts/square meter. Metrabyte A/D converter output is in micro-volts (noon reading in Woods Hole is likely to be between 2000 and 5000). __________________________________________________ Sound velocity (SSV) Format: vvvv.vvvv (meters/sec) Surface sound velocity calculated from FSI sea surface temperature and conductivity data values. Intermediate salinity values are calculated in accordance with UNESCO 44. __________________________________________________ True Wind spd & dir; Port WXT520 (WXTP_TSD) True wind speed (m/s) and direction (degrees) Values are calculated from the Vaisala WXT520 Weather Transmitter raw data corrected for sensor alignment error and combined with ship's heading and GPS SOG and COG values. Wind direction is given in meteorological terms; a "0" degree wind comes from the north. Sensor is mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ True wind spd & dir; Stbd WXT520 (WXTS_TSD) True wind speed (m/s) and direction (degrees) Values are calculated from the Vaisala WXT520 Weather Transmitter raw data corrected for sensor alignment error and combined with ship's heading and GPS SOG and COG values. Wind direction is given in meteorological terms; a "0" degree wind comes from the north. Sensor is mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ True wind dir; Port WXT520 (WXTP_TD) True wind direction in degrees Values are calculated from the Vaisala WXT520 Weather Transmitter raw data corrected for sensor alignment error and combined with ship's gyro heading and GPS SOG and COG values. A "0" degree wind comes from the north. Sensor in mounted on the forward mast, port side, 15m above the waterline. __________________________________________________ True wind direction; Stbd WXT520 (WXTS_TD) True wind direction in degrees Values are calculated from the Vaisala WXT520 Weather Transmitter raw data corrected for sensor alignment error and combined with ship's gyro heading and GPS SOG and COG values. A "0" degree wind comes from the north. Sensor in mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ True wind direction (Wnd_TD) Format: xxx.x (degrees) True wind direction from primary source (WXTS520). Wind sensors are mounted 14.5 meters above sea level. __________________________________________________ True wind direction; IMET (IMET_TD) Format: xxx.x (degrees) Wind direction obtained from the IMET wind sensor and corrected for ship heading (gyro) plus ship course and speed (GPS SOG & COG). Sensor is mounted on the forward mast, centerline, 15m above the waterline. __________________________________________________ True wind spd; Port WXT520 (WXTP_TS) True wind speed (m/s) Values are calculated from the Vaisala WXT510 Weather Transmitter raw data corrected for sensor alignment error and combined with ship's heading and GPS SOG and COG values. Sensor is mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ True wind speed; Stbd WXT520 (WXTS_TS) True wind speed (m/s) Values are calculated from the Vaisala WXT510 Weather Transmitter raw data corrected for sensor alignment error and combined with ship's heading and GPS SOG and COG values. Sensor is mounted on the forward mast, stbd side, 15m above the waterline. __________________________________________________ True wind speed (Wnd_TS) Format: xx.xxxx (knots) True wind speed from primary source (WXTS520). Wind sensors are mounted 14.5 meters above sea level. __________________________________________________ True wind speed; IMET (IMET_TS) Format: xx.xx (meters/sec) Wind speed obtained from the IMET wind sensor and corrected for ship heading plus ship course and speed (GPS SOG & COG). Sensor is mounted on the forward mast, centerlins, 15m above the waterline. __________________________________________________ Turner fluorometer data (TF10_data) Fluorometer data from Turner Designs Model 10. Full scale = 1 volt (1000.00 from MetraByte A/D module). Exact value is not in agreement with instrument's front panel meter due to the characteristics of the calibration resistor. Science party is responsible for recording comparative readings during the cruise if needed. __________________________________________________ Turner fluorometer range (TF10_Range) Fluorometer range setting from Turner Designs Model 10 (full scale = 1 volt). Actual values reported by the MetraByte A/D module (1000.00=1 volt) are not in agreement with the value indicated in the Turner manual due to the accuracy of the calibration resistor. Actual readings are per the following table (science party should check these values at some point during the cruise): Range Expected Actual X0 0.0v 000.10 X3.16 0.4v 488.60 X10 0.7v 831.00 X31.6 1.0v 9999.99 __________________________________________________ Misc underway data (Underway) NMEA data string ($Underway) Air temp (C) Barometric pressure (hPa) Relative humidity (%) Conductivity (mS/cm) Salinity (PSU) Temperature (C) SBE48 temperature (C, at bow chamber) Shortwave radiation (watts/square meter) True wind speed (m/s) True wind direction (degrees) Gyro heading (degrees) __________________________________________________ Acoustic wind sensor (WS425) Format: $PMWV,direction,ref,speed,units,status*CS ; sensor's polling address Direction; 0-359 degrees Reference; R = relative, T = True Speed; wind speed value Units; K = km/hr, M = m/sec, N = kt Status; A = data valid, V = data invalid *CS; checksum Data is ship relative. "45" degree wind comes over the stbd quarter. Sensor is mounted on the forward mast, 15 meters above the waterline. __________________________________________________ WS425 Rel Wind direction (WS425_Dm) Vaisala acoustic wind sensor Wind direction is relative to the ship. "45" degree wind comes in over the stbd quarter. Sensor is mounted on the forward mast, 15m above the waterline. __________________________________________________ WS425 Rel Wind speed (WS425_Sm) Vaisala acoustic wind sensor Wind speed relative to the ship (m/s) Sensor is mounted on the forward mast, 15m above the waterline. __________________________________________________ WS425 True wind direction (WS425_TD) True wind direction in degrees Values are calculated from the Vaisala WS425 acoustic wind sensor raw data corrected for sensor alignment error and combined with ship's gyro heading and GPS SOG and COG values. A "0" degree wind comes from the north. __________________________________________________ WS425 True wind spd & dir (WS425_TSD) True wind speed (m/s) and direction (degrees) Values are calculated from the Vaisala WS425 Acoustic wind sensor raw data corrected for sensor alignment error and combined with ship's gyro heading and GPS SOG and COG values. Wind direction is given in meteorological terms; a "0" degree wind comes from the north. __________________________________________________ WS425 True wind speed (WS425_TS) True wind speed (m/s) Values are calculated from the Vaisala WS425 acoustic wind sensor raw data corrected for sensor alignment error and combined with ship's gyro heading and GPS SOG and COG values. __________________________________________________ WXT520 Port MET sensor (WXTP) Address = "P" Sensor is mounted on the forward mast, port side, 14.5 meters above sea level. Vaisala WXT520 Weather Transmitter Data Format: WXTP 39240.67178 16:07:22 5R0,Dm=048D,Sn=0.0M,Sm=0.1M, Sx=0.2M,Ta=24.5C,Ua=35.7P,Pa=1018.2H,Rc=0.00M,Ri=0.0M WXTP 39240.67178 16:07:22 = Calliope designator and time values (time stamps are GMT) SR0 = Instrument's polled data request ("S" is inst address) Dm = Wind direction, deg (2 Hz samples, 10 sec average) Sn = Wind speed min, m/sec (2 Hz, 10 sec sample period) Sm = Wind speed average, m/sec (2 Hz, 10 sec sample period) Sx = Wind speed max, m/sec (2 Hz, 10 sec sample period) Ta = Air temperature, degrees C Ua = Relative humidity, % Pa = Barometric pressure, hPa Rc = Rain accumulation, mm (updated in 10 sec intervals) Ri = Rain intensity, mm/hour The rain accumulation value is reset only when the sensor power is reset. Wind speed and direction are given in meteorological terms: a "0" degree wind comes from the bow; a "90" degree wind comes from the Stbd side. Wind speed and direction values are ship relative and direction has not been corrected for mounting alignment error. Wind sampling is done at 2 Hz and averaged over 10 seconds - new data is available at 10 sec intervals. WXTP_Dm Ship relative wind direction (degrees), not corrected for sensor mounting alignment error. Data Format: xxx Wind direction is given in meteorological terms: a "0" degree wind comes from the bow; a "90" degree wind comes from the Stbd side. Wind sampling is done at 2 Hz and averaged over 10 seconds - new data is available at 10 sec intervals. WXTP_Sm Ship relative wind speed (m/s) Data Format: xx.x Wind sampling is done at 2 Hz and averaged over 10 seconds - new data is available at 10 sec intervals. WXTP_Rc Rain accumulation (mm) Data Format: xx.xx This value continues to increase until the sensor is reset as the result of power cycling (data polling does not reset the count). WXTP_Ri Rain intensity (mm/hr) Data Format: x.x This value is calculated over 10 second intervals. __________________________________________________ WXT520 Stbd MET sensor (WXTS) Address = "S" Sensor is mounted on the forward mast, stbd side, 14.5 meters above sea level. Vaisala WXT520 Weather Transmitter Data Format: WXTS 39240.67178 16:07:22 5R0,Dm=048D,Sn=0.0M,Sm=0.1M, Sx=0.2M,Ta=24.5C,Ua=35.7P,Pa=1018.2H,Rc=0.00M,Ri=0.0M WXTS 39240.67178 16:07:22 = Calliope designator and time values (time stamps are GMT) SR0 = Instrument's polled data request (“S” is inst address) Dm = Wind direction, deg (2 Hz samples, 10 sec average) Sn = Wind speed min, m/sec (2 Hz, 10 sec sample period) Sm = Wind speed average, m/sec (2 Hz, 10 sec sample period) Sx = Wind speed max, m/sec (2 Hz, 10 sec sample period) Ta = Air temperature, degrees C Ua = Relative humidity, % Pa = Barometric pressure, hPa Rc = Rain accumulation, mm (updated in 10 sec intervals) Ri = Rain intensity, mm/hour The rain accumulation value is reset only when the sensor power is reset. Wind speed and direction are given in meteorological terms: a “0” degree wind comes from the bow; a “90” degree wind comes from the Stbd side. Wind speed and direction values are ship relative and direction has not been corrected for mounting alignment error. Wind sampling is done at 2 Hz and averaged over 10 seconds - new data is available at 10 sec intervals. WXTS_Dm Ship relative wind direction (degrees), not corrected for sensor mounting alignment error. Data Format: xxx Wind direction is given in meteorological terms: a “0” degree wind comes from the bow; a “90” degree wind comes from the Stbd side. Wind sampling is done at 2 Hz and averaged over 10 seconds - new data is available at 10 sec intervals. WXTS_Sm Ship relative wind speed (m/s) Data Format: xx.x Wind sampling is done at 2 Hz and averaged over 10 seconds - new data is available at 10 sec intervals. WXTS_Rc Rain accumulation (mm) Data Format: xx.xx This value continues to increase until the sensor is reset as the result of power cycling (data polling does not reset the count). WXTS_Ri Rain intensity (mm/hr) Data Format: x.x This value is calculated over 10 second intervals. __________________________________________________ __________________________________________________ Defined constants: MastHeight = 14.5 IMETSensorOffset = 0.0 WXT520StbdSensorOffset = 0.0 WXT520PortSensorOffset = 0.0 WS425SensorOffset = 0.0 __________________________________________________ __________________________________________________ Auxiliary information: