LDS format descriptions for SKQ201814S --------------------------------------- The directories under lds/raw contains all data logged by the LDEO Data System(LDS). Many of R/V Sikuliaq's underway sensors that output ASCII serial data such as GPS navigation, gravity, weather and surface water properties are logged by LDS. LDS precedes each line of serial data with the logger label and time stamp delimited by tabs. Everything after the time stamp is generally straight from the instrument unmodified with the few exceptions noted below. Many of the instruments on the Sikuliaq that output serial data will conform to the NMEA 0183 standard. NMEA 0183 is a combined electrical and data specification for communication between marine electronics such as echo sounder, sonar, anemometer, gyrocompass, autopilot, GPS receivers and many other types of instruments. It has been defined by, and is controlled by, the National Marine Electronics Association. The NMEA 0183 standard uses a simple ASCII, serial communications protocol that defines how data are transmitted in a "sentence" from one "talker" to multiple "listeners" at a time. Sensors that output NMEA sentences will be noted below. More detailed information on the meaning of the sentences can generally be looked up on the internet. The following is a description of each of the individual sensors logged by LDS - ------------------------------------------------------------------------------------------------ flow_krohne_fwd: KROHNE OPTIFLUX 5000 Electromagnetic flowmeter measuring surface seawater flow being delivered to the two TSGs and Turner C6 in the main lab. These electromagnetic flowmeters are designed exclusively to measure the flow and conductivity of electrically conductive, liquid media. The interface to this instrument is via Modbus RTU over RS485 so custom software had to be written to extract the required data from the sensor. The logged data format is unique to Sikuliaq. Location: In main lab. Water source forward seachest. Sample rate: 1 per second Example data line: flow_krohne_fwd 2014-12-11T20:19:01.7029Z 0.558,5.93,27.38,0.65940 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] flow speed [m/s] volume flow [l/min] coil temperature [C] conductivity [S/m] ------------------------------------------------------------------------------------------------ flow_krohne_pco2: KROHNE OPTIFLUX 5000 Electromagnetic flowmeter measuring surface seawater flow being delivered to the pCO2 system equilibrator in the wet lab. These electromagnetic flowmeters are designed exclusively to measure the flow and conductivity of electrically conductive, liquid media. The interface to this instrument is via Modbus RTU over RS485 so custom software had to be written to extract the required data from the sensor. The logged data format is unique to Sikuliaq. Location: In wet lab. Water source forward seachest. Sample rate: 1 per second Example data line: flow_krohne_pco2 2017-06-01T18:15:27.9012Z 1.204,71711.54,-271.97,1.18521 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] flow speed [m/s] volume flow [l/min] coil temperature [C] conductivity [S/m] ------------------------------------------------------------------------------------------------ flow_omega_fwd: This flow sensor has been removed. ------------------------------------------------------------------------------------------------ fluoro_turner-c6: Turner Designs C6 Multi-Sensor Platform with five Cyclops-7 submersible sensors located in main lab. Measures the following parameters in surface seawater from forward seachest in bow thruster room: C6 Multi-Sensor Platform Model No: 2200-000 Serial No: 220224 Cyclops-7 submersible sensors Model No: 2100-000 Phycoerythrin, Serial Number: 2102974 CDOM, Serial Number: 2102976 Chlorophyll a, Serial Number: 2102978 Crude Oil, Serial Number: 2102980 Turbidity, Serial Number: 2102982 Location: In main lab. Water source forward seachest. Sample rate: 1 per second Example data line: fluoro_turner-c6 2014-11-29T00:00:00.8851Z 11/29/14 0:00:01 79.88 20.60 101.32 44.32 7.28 9.38 21.05 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] C6 Date C6 Time Phycoerythrin(RFU) CDOM(RFU) Chlorophyll_a(RFU) Crude Oil(RFU) Turbidity(RFU) Depth(m) Temp(C) Note: Dark counts user calibration last performed 06 May, 2018. ------------------------------------------------------------------------------------------------ gnss_cnav: C-Nav3050 Globally Corrected Global Positioning System (GcGPS). Antenna located on main mast. C-Nav Subscription Services were active for this entire cruise. Note: C-Nav Subscription Services requires a clear line-of-sight of their geostationary satellites. The cnav antenna was relocated to the top of mainmast and sits between the SeaPath antennas with clear access to the satellites. This was completed in February of 2016. Antenna was re-surveyed into the ships coordinate system by IMTEC March 5th, 2016. S/N: 13669 P/N: 92-310413-3002LF Location: Sample rate: 1 per second Example data lines: gnss_cnav 2015-01-10T03:23:13.0575Z $GNZDA,032313.00,10,01,2015,00,00*7E gnss_cnav 2015-01-10T03:23:13.1366Z $GNRMC,032313.00,A,1807.457933,N,16228.301394,E,1.70,231.0,100115,0,E,D*00 gnss_cnav 2015-01-10T03:23:13.1767Z $GNVTG,231.0,T,,M,1.70,N,3.15,K,D*17 gnss_cnav 2015-01-10T03:23:13.2183Z $PNCTR,NAVQ,032313.00,3D,C2-SET,DUAL*24 gnss_cnav 2015-01-10T03:23:13.3072Z $GNGGA,032313.00,1807.457933,N,16228.301394,E,2,17,0.7,50.860,M,0.000,M,3.0,0336*52 gnss_cnav 2015-01-10T03:23:13.3806Z $GNGST,032313.00,0.2704,0.0601,0.0498,0.6302,0.0601,0.0498,0.1475*78 gnss_cnav 2015-01-10T03:23:13.4166Z $PNCTR,RXQ,032313,Y,13.25,10,0*43 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ASCII messages The following is a brief overview of the NMEA sentences currently being generated: $..ZDA,time,day,month,year,offset_hour,offset_min*checksum $..RMC,time,status,lat,N/S,lon,E/W,sog,cog,date,variation,E/W,mode*checksum $..VTG,cog,T,cog,M,sog,N,sog,K,mode*checksum $..GGA,time,lat,N/S,lon,E/W,quality,used,hdop,alt,M,separation,M,age,id*checksum $..GST,time,rms,majoraxis,minoraxis,orientation,laterr,lonerr,alterr*checksum $PNCTR,NAVQ,time,nav mode,type,solution mode*checksum -The UTC time of the message in HHMMSS. -Navigation Mode(2D,3D,...). -GcGPS Correction Signal Type -Solution Mode(Single or Dual frequency). $PNCTR,RXQ,time,Y/N,signal,idle,bad*checksum -The UTC time of the message in HHMMSS. -Either a Y (Yes) or N (No) to indicate the status of the C-Nav signal lock. -The C-Nav correction service signal (or carrier) to noise ration. -The percentage of Idle packet messages being received (over the last 4 seconds). -The percentage of Bad packet messages received (over the last 4 seconds) Note: NMEA messages begin with "$GN..." if tracking both GPS and GLONASS, and "$GP..." if only tracking GPS. ------------------------------------------------------------------------------------------------ grav_bgm3_222: Gravimeter BGM-3, Serial Number: 222 The interface to the BGM-3 meters is a second (third?) generation of the original interface designed by Joe Stennett at Lamont in the 1980s. Location: Aft inboard wall of electronic workshop, 1-12-1 Sample rate: 1 per second Example data lines: grav_bgm3_222 2014-11-17T20:18:10.3194Z 04:024671 00 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Interface_Counter_period:Raw_Counts Status Status: 00 = data valid 01 = platform not valid(e.g. gyro) 02 = sensor not valid 03 = both platform and sensor not valid ------------------------------------------------------------------------------------------------ gyro_1: NAVIGAT 2100 Fiber-Optic Gyrocompass and Attitude Reference System. Primary. Location: Forward bulkhead of upper lab, 03-32-2 Sample rate: 10 per second. Downsampled to 2 per second in log files. Example data lines: gyro_1 2014-12-11T00:16:03.5470Z $HEHDT,107.38,T*12 gyro_1 2014-12-11T00:16:03.5984Z $TIROT,-0000.6,A*20 gyro_1 2014-12-11T00:16:03.8972Z $PPLAN,,,,,,,,2*71 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ASCII message The following is a brief overview of the NMEA sentences currently being generated: $--HDT,heading,T*checksum $--ROT,rate of turn,status*checksum ------------------------------------------------------------------------------------------------ gyro_2: NAVIGAT 2100 Fiber-Optic Gyrocompass and Attitude Reference System. Secondary. Location: Forward bulkhead of upper lab, 03-32-2 Sample rate: 10 per second. Downsampled to 2 per second in log files. Example data lines: gyro_2 2014-12-11T22:05:38.7155Z $PPLAN,,,,,,,,1*72 gyro_2 2014-12-11T22:05:39.0194Z $TIROT,-0039.0,A*2C gyro_2 2014-12-11T22:05:39.0669Z $HEHDT,106.27,T*1D Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ASCII message The following is a brief overview of the NMEA sentences currently being generated: $--HDT,heading,T*checksum $--ROT,rate of turn,status*checksum ------------------------------------------------------------------------------------------------ ins_seapath_position: Kongsberg Seapth 320+ Precise Heading, Attitude and Positioning Sensor. The product combines inertial technology together with GPS and GLONASS satellite signals. Core components in the product are the MRU 5+ inertial sensor, the two combined GPS/GLONASS receivers, the Processing and HMI Unit. RTCM corrections provided by the C-Nav3050. The navigation reference point used is the ship's granite bock. The origin for the vessel coordinate system (0, 0, 0) is the center of the granite block located in science hold, 2-67-0. Sample rate: 1 per second Example data lines: ins_seapath_position 2014-12-11T22:09:32.4715Z $GPZDA,220932.45,11,12,2014,,*6B ins_seapath_position 2014-12-11T22:09:32.5563Z $GPGGA,220932.45,2207.733438,N,16242.262661,W,2,09,1.1,7.25,M,4.62,M,1.2,0001*6A ins_seapath_position 2014-12-11T22:09:32.6020Z $GPVTG,111.01,T,101.59,M,8.5,N,15.7,K,D*14 ins_seapath_position 2014-12-11T22:09:32.6841Z $GPRMC,220932.45,A,2207.733438,N,16242.262661,W,8.5,111.01,111214,9.4,E,D*16 ins_seapath_position 2014-12-11T22:09:32.7451Z $GPGST,220932.45,0.49,0.206,0.193,32,0.202,0.197,0.439*42 ins_seapath_position 2014-12-11T22:09:32.8020Z $GPGBS,220932.45,0.06,-0.03,0.44,19,0.00,0.46,0.51*40 ins_seapath_position 2014-12-11T22:09:32.8229Z $GPHDT,104.68,T*0E ins_seapath_position 2014-12-11T22:09:32.8450Z $PSXN,20,0,0,0,0*3B ins_seapath_position 2014-12-11T22:09:32.8825Z $PSXN,23,1.28,1.93,104.68,-0.24*18 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ASCII message The following is a brief overview of the NMEA sentences currently being generated: $..ZDA,time,day,month,year,offset_hour,offset_min*checksum $..RMC,time,status,lat,N/S,lon,E/W,sog,cog,date,variation,E/W,mode*checksum $..VTG,cog,T,cog,M,sog,N,sog,K,mode*checksum $..GGA,time,lat,N/S,lon,E/W,quality,used,hdop,alt,M,separation,M,age,id*checksum $..GST,time,rms,majoraxis,minoraxis,orientation,laterr,lonerr,alterr*checksum $..HDT,heading,T*checksum $..GBS,UTC,Laterr,Lonerr,Alterr,SVID,Det,Bias,StdDev*checksum $PSXN,20,horiz-qual,hgt-qual,head-qual,rp-qual*checksum $PSXN,23,roll,pitch,heading,heave*checksum ------------------------------------------------------------------------------------------------ mb_em302_centerbeam: Nearest nadir centerbeam depth from the multibeam EM302. The data is extracted directly from the Kongsberg XYZ88 datagram. Note that there are two timestamps included. The first timestamp is the time the datagram is received by LDS and logged. The second timestamps is the time extracted from the XYZ88 header which represents the time the data is valid. This datagram does not include latitude/longitude so this information must be obtained from a separate GPS source. Note that the time of the GPS latitude/longitude is closest to the LDS timestamp. The logged data format is unique to Sikuliaq. Sample rate: variable Example data lines: mb_em302_centerbeam 2014-12-11T22:47:00.4684Z $EMCTR,2014,12,11,22:46:48.730,22.101408,-162.613610,4567.00,288*56 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] (Note: This is the time the datagram was received by LDS) ID [$EMCTR] Year,Month,Day,Hour:Min:Sec (Note: This is the time from the Kongsberg XYZ88 datagram header) Latitude [Decimal Degees] Longitude [Decimal Degees] Depth [Meters] Number of Beams CheckSum ------------------------------------------------------------------------------------------------ mb_em710_centerbeam: Nearest nadir centerbeam depth from the multibeam EM710. The data is extracted directly from the Kongsberg XYZ88 datagram. Note that there are two timestamps included. The first timestamp is the time the datagram is received by LDS and logged. The second timestamps is the time extracted from the XYZ88 header which represents the time the data is valid. This datagram does not include latitude/longitude so this information must be obtained from a separate GPS source. Note that the time of the GPS latitude/longitude is closest to the LDS timestamp. The logged data format is unique to Sikuliaq. Sample rate: variable Example data lines: mb_em710_centerbeam 2014-12-09T00:42:29.8146Z $EMCTR,2014,12,09,00:42:28.954,25.616626,-172.513725,111.31,350*6B Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] (Note: This is the time the datagram was received by LDS) ID [$EMCTR] Year,Month,Day,Hour:Min:Sec (Note: This is the time from the Kongsberg XYZ88 datagram header) Latitude [Decimal Degees] Longitude [Decimal Degees] Depth [Meters] Number of beams in ping CheckSum ------------------------------------------------------------------------------------------------ mbari_isus_fwd: In Situ Ultraviolet Spectrophotometer (ISUS) is a real time, chemical free sensor for measuring nitrate concentration in seawater. This instrument was provided by the science party as a temporary install for the cruise. It has been programmed to output full ASCII frames and scheduled on a 5 minute duty cycle to conserve lamp life. Model: Satlantic MBARI-ISUS V3 Serial Number: 0204 & 0248 Location: Main lab. Water source forward seachest. Sample rate: 2-3 samples every 5 minutes Example data line: mbari_isus_fwd 2017-06-06T11:25:31.9325Z SATNLF0204,2017157,11.425316,1.25,-12.88,56.93,0.18,0.000177,22.12,21.56,22.89,397604,14.22,11.95,5.01,11.44,14145.40,164.32,1125.20,1173.62,1118,1123,1129,1134,1122,1120,1127,1132,1129,1143,1138,1158,1133,1145,1134,1153,1152,1151,1170,1163,1184,1225,1289,1426,1633,1989,2519,3261,4247,5459,6940,8621,10491,12537,14650,16789,18932,20991,22805,24372,25617,26447,26825,26836,26497,25956,25309,24625,24017,23556,23238,23130,23149,23431,23833,24428,25150,25993,26965,28025,29135,30325,31539,32717,33841,34868,35767,36399,36746,36807,36497,35833,34851,33650,32276,30781,29275,27821,26386,25122,23989,23005,22147,21436,20825,20355,20022,19765,19619,19567,19610,19735,19927,20211,20553,20949,21386,21865,22362,22824,23271,23674,23956,24144,24208,24126,23940,23607,23133,22589,21954,21293,20593,19921,19251,18631,18078,17547,17086,16701,16383,16133,15947,15838,15783,15764,15827,15916,16062,16259,16472,16759,17036,17369,17720,18079,18465,18849,19269,19669,20061,20485,20880,21236,21534,21841,22091,22287,22429,22518,22533,22508,22409,22229,22018,21713,21383,20989,20521,20080,19586,19116,18645,18149,17664,17207,16738,16281,15816,15369,14911,14486,14075,13683,13324,13000,12700,12437,12202,12009,11842,11698,11564,11443,11346,11239,11171,11095,10993,10898,10805,10739,10645,10590,10523,10471,10417,10365,10295,10263,10234,10225,10193,10173,10165,10143,10153,10125,10096,10073,10033,10007,9939,9895,9820,9765,9682,9590,9511,9418,9316,9176,9018,8824,8645,8445,8287,8133,7964,7833,7713,7572,7475,7371,7303,7197,7063,6891,6727,6590,6451,6334,6231,6128,6033,5986,5906,5832,5741,5699,5668,5610,5445,5150,4755,4755,58 Field Descriptions: (see ISUS-V3-Manual.pdf for more detail) LDS Logger ID LDS Time Stamp [UTC] INSTRUMENT DATE TIME NTR_CONC AUX1 AUX2 AUX3 RMS ERROR T_INT T_SPEC T_LAMP LAMP_TIME HUMIDITY VOLT_12 VOLT_5 VOLT_MAIN REF AVG REF STD SW DARK SPEC AVG CHANNEL(λ1) CHANNEL(λn) CHANNEL(λ256) CHECK SUM TERMINATOR ------------------------------------------------------------------------------------------------ met_ptu307: Vaisala Combined Pressure, Humidity, and Temperature Transmitter Model: PTU307 Serial Number: J1620010 Location: forward mast Sample rate: 1 every 5 seconds Example data lines: met_ptu307 2014-12-11T22:57:50.4649Z N 0 P= 1016.8 hPa T= 24.5 'C RH= 68.0 %RH Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Transmitter status [7 character field, for example: N 0 no heating h 115 probe heating active, power 115/255 H 159.0 purge heating active, temperature 159C S 115.0 purge cooling active, temperature 115C X 95.0 sensor heating active, temperature 95C ] Atmospheric pressure[hPa] Air Temperature[C] Relative Humidity[%] Notes: Probe heating is enabled with the following settings: > heat Probe heat: on (all other settings left at default!) Sensor heating is enabled with the following settings: > xheat Extra heat: ON RH limit : 95 %RH Temperature : 100 'C Duration : 30 s (Initially xheat appeared to work as indicated by the 'X' status character showing up in the output data. However at some point this function appeared to stop working. Further investigation will be required.) Automatic chemical purge is enabled with the following settings: > pur Interval Purge : ON Interval : 720 min Power-up Purge : OFF Duration : 120 s Settling : 240 s Temperature : 160 'C Temp. diff. : 0.5 'C ------------------------------------------------------------------------------------------------ oxygen_sbe43_fwd: Sea-Bird SBE 43 Dissolved Oxygen (DO) sensor. Measures dissolved oxygen in surface seawater from forward seachest. Model: SBE43 Serial Number: 3582 Location: Main lab. Water source forward sea chest Sample rate: 1 second Example data line: oxygen_sbe43_fwd 2016-09-17T23:59:23.5394Z +02.108 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Voltage output [VDC] ------------------------------------------------------------------------------------------------ oxygen_sbe43_fwd_calc: Sea-Bird SBE 43 Dissolved Oxygen (DO) sensor. Computed dissolved oxygen in surface seawater. Uses Sea-Bird equation with oxygen saturation value. Temperature and salinity values come from tsg_sbe45_fwd. Model: SBE43 Serial Number: 3582 Location: Main lab. Water source forward sea chest Sample rate: 1 second Example data line: oxygen_sbe43_fwd_calc 2016-09-17T23:59:23.5394Z 2.1080,0.4605,27.8756,8.319,7.983 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Voltage output [VDC] Temperature [C] Salinity [psu] Oxygen Solubility [ml/L] Dissolved Oxygen [ml/L] ------------------------------------------------------------------------------------------------ pco2_ldeo_merge: LDEO pCO2 seawater sensor Location: Wet lab. Water source forward seachest in bow thruster room Sample rate: 1 every 3 minutes The original sensor format has been modified by pre-pending the logger name and logger timestamp and appending the additional ship supplied parameters lat, lon, cog, sog, sst, salinity, baro, wind speed, and wind dir. Field Descriptions: Log_Name Log_Time Date-Time, CO2(mvolts),Cell Temp(C),Baro Pr,Flow(ccm),CO2(ppm),pCO2(uatm),Equil T(C),SBE38 T(C),ID#, ID,lat,lon,cog(D),sog(knots),sst(C),salinity(psu),baro(hPa),wind speed(knots),wind dir(D) ------------------------------------------------------------------------------------------------ rad_psp-pir: Remote Measurements & Research PSP (Precision Spectral Pyranometer) and PIR (Precision Infrared Radiometer) PSP Serial Number: 37669F3 PIR Serial Number: 37685F3 Location: top of science control room Sample rate: 1 every 10 seconds Example data line: rad_psp-pir 2014-12-12T01:29:38.2952Z $WIR20,14/12/12,01:46:30, 175, -418.5, 265.53, 26.31, 26.15, 278.59, 27.9, 10.8 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] ID [NMEA-style tag] DATE TIME [yy/MM/dd,hh:mm:ss(Note: this time is not synced with external time server so do not use)] # [the number of samples that went into the averages] PIR [the average voltage from the PIR thermopile,millivolts] LW [the computed longwave downwelling irradiance,Wm**2] TCASE [the PIR case temperature,C] TDOME [the PIR dome temperature,C] SW [the computed shortwave downwelling irradiance,Wm**2] T-AVR [the computed shortwave downwelling irradiance,C] BATT [the battery voltage after the input diode drop,volts] ------------------------------------------------------------------------------------------------ rad_qsr2150a: Biospherical Instruments reference PAR sensor Model: QSR2150 Serial Number: 50173 Location: top of science control room Sample rate: 1 per second ADC sample rate 125, gain 1 Averaging 125 readings Calfactor: 0.000624uE/m2 sec Calibration Mode = B, Output calibrated for use in air dividing net volts by 0.000624 with units of uE/m2 sec Dark zero, currently dark = 0.010320v. temperature is enabled, line voltage is enabled Example data line: rad_qsr2150a 2014-12-12T02:02:20.7459Z 1914.525, 28.09, 7.536 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] PAR [uE/m2 sec] Sensor Temperature [C] Line voltage [volts] ------------------------------------------------------------------------------------------------ rain_org815ds_across: Optical rain gauge sensors have been removed from service due to data quality issues. ------------------------------------------------------------------------------------------------ rain_rmy50202: RM Young 50202 precipitation gauge. Measures rain or snow via a catchment funnel and capacitive sensor. Output of sensor is analog. Digital interface is via the RM Young Model 32400 SERIAL INTERFACE. The logged data format is unique to Sikuliaq. Model: 50202 Serial Number: 02078 Location: Fying Bridge Sample rate: 1 every 10 seconds Example data line: rain_rmy50202 2014-12-12T05:17:36.5777Z $PAPR1,1805,22.56*03 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] ID Raw Voltage counts [0 - 4000] Precipitation Column Level [mm]* Checksum * Note: The following formula is used to compute precip from raw counts: $volts = 5*($counts/4000) $precip = $volts * 10 See included document RMYoung-RainGauge.pdf for more information. ------------------------------------------------------------------------------------------------ sb_echosounder_1: Bridge navigation echo sounder, port console Model: LAZ 5100 Sample rate: variable Example data lines: sb_echosounder_1 2014-11-19T02:52:42.7943Z $SDDPT,0005.9,-0.0,0010*6B sb_echosounder_1 2014-11-19T02:52:42.8741Z $SDDBT,0019.3,f,0005.9,M,0003.2,F*30 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ASCII message The following is a brief overview of the NMEA sentences currently being generated: $--DPT,depth,offset,range*checksum -Water depth relative to the transducer, meters -Offset from transducer, meters -Maximum range scale in use $--DBT,depth,f,depth,M,depth,F*checksum -Water depth below transducer, feet -Water depth below transducer, Meters -Water depth below transducer, Fathoms ------------------------------------------------------------------------------------------------ sb_echosounder_2: Bridge navigation echo sounder, chart table fiddle board Model: LAZ 5100 Sample rate: variable Example data lines: sb_echosounder_2 2014-11-19T02:48:28.9308Z $SDDPT,0005.7,-0.0,0010*65 sb_echosounder_2 2014-11-19T02:48:29.0106Z $SDDBT,0018.6,f,0005.7,M,0003.1,F*39 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ASCII message The following is a brief overview of the NMEA sentences currently being generated: $--DPT,depth,offset,range*checksum -Water depth relative to the transducer, meters -Offset from transducer, meters -Maximum range scale in use $--DBT,depth,f,depth,M,depth,F*checksum -Water depth below transducer, feet -Water depth below transducer, Meters -Water depth below transducer, Fathoms ------------------------------------------------------------------------------------------------ speedlog: Bridge navigation Doppler Speed Log Sample rate: variable Example data lines: speedlog 2014-12-12T06:02:42.8523Z $VDVLW,14566.6,N,4566.64,N*5A speedlog 2014-12-12T06:02:43.7550Z $VDVBW,5.5,0.2,A,,,V,,V,,V*44 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ASCII message The following is a brief overview of the NMEA sentences currently being generated: $--VLW,dist,N,dist,N,dist,N,dist,N*checksum -Total cumulative water distance, nautical miles -Water distance since reset, nautical miles -Total cumulative ground distance, nautical miles -Ground distance since reset, nautical miles $--VBW,speed,speed,status,speed,speed,status,speed,status,speed,status*checksum -Longitudinal water speed, knots -Transverse water speed, knots -Status: Water speed, A = Data valid -Longitudinal ground speed, knots -Transverse ground speed , knots -Status, Ground speed, A = Data valid -Stern transverse water speed, knots -Status, stern water speed, A = Data valid -Stern transverse ground speed , knots -Status, stern ground speed A = Data valid V = Invalid ------------------------------------------------------------------------------------------------ sv_aml-svxchang_fwd: AML Oceanographic SV•Xchange field swappable sound velocity sensor. Measures speed of sound in surface seawater from forward seachest in bow thruster room. Model: SV•Xchange Calibrated Sensor Serial Number: 203299 Location: Bow thruster room. Water source forward seachest. Sample rate: 1 every 5 seconds Example data line: ssv_aml-svxchang_fwd 2014-12-12T06:08:43.7092Z 1537.965 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Speed of Sound [m/s] Note: Seawater was not flowing to the SV probe during this cruise. ------------------------------------------------------------------------------------------------ thermo_pyrometer-ct15: Heitronics infrared radiation pyrometer. Measures sea surface skin temperature. Model: CT15.10 Serial Number: 10974 Location: Just forward of science control room Sample rate: 1 per second Example data line: thermo_pyrometer-ct15 2014-12-12T06:26:14.2312Z 25.51 C Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Temperature [C] ------------------------------------------------------------------------------------------------ thermo_sbe38_fwd: Sea-Bird SBE 38 Temperature sensor. Measures surface seawater temperature from forward seachest for the UNCSW system. Model: SBE38 Serial Number: 3874330-0733 Location: Forward seachest in bow thruster room Sample rate: 1 second Example data line: thermo_sbe38_fwd 2016-03-12T00:00:16.7036Z 16.7103 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Temperature [C] ------------------------------------------------------------------------------------------------ thermo_sbe38_incubator: Sea-Bird SBE 38 Temperature sensor. Measures surface seawater temperature from forward seachest for the Incubator system. Model: SBE38 Serial Number: 3865482-0631 Location: Forward seachest in bow thruster room Sample rate: 1 second Example data line: thermo_sbe38_incubator 2015-10-26T00:00:13.6572Z 1.7084 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Temperature [C] ------------------------------------------------------------------------------------------------ tsg_emssv: Log of the Kongsberg external datagrams(C+T format) sent to the Kongsberg MBES (EM302 and EM710). These provide the real-time input for surface sound velocity needed by these sonars. Sample rate: 1 every 5 seconds Example data line: tsg_emssv 2014-12-12T06:51:13.1575Z $KSSIS,80,1537.39,26.44, Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Kongsberg external datagram(C+T format)* * Note: $KSSIS,80,c.c,t.t,\n\r where • $KSSIS specifies that this is a Kongsberg proprietary datagram format • 80 is the datagram number indicating that this is an external soundspeed sample • c.c is the sound speed at transducer represented as an ASCII text string e.g. 1537.39 • t.t is the temperature at transducer represented as an ASCII text string e.g. 26.44 ------------------------------------------------------------------------------------------------ tsg_sbe45_fwd: Sea-Bird SBE 45 MicroTSG Conductivity and Temperature Monitor. Measures surface seawater temperature and conductivity from forward seachest. Model: SBE 45 MicroTSG (Thermosalinograph) Serial Number: 0454 Location: Main lab. Water source forward sea chest Sample rate: 1 every 5 seconds Example data line: tsg_sbe45_fwd 2014-12-12T06:34:03.1647Z 26.4679, 5.44818, 34.9076, 1537.771 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Temperature [C] Conductivity [S/m] Salinity [psu] Speed of Sound [m/s] ------------------------------------------------------------------------------------------------ tsg_sbe45_fwd2: Sea-Bird SBE 45 MicroTSG Conductivity and Temperature Monitor. Measures surface seawater temperature and conductivity from forward seachest. Model: SBE 45 MicroTSG (Thermosalinograph) Serial Number: 0455 Location: Main lab. Water source forward sea chest Sample rate: 1 every 5 seconds Example data line: tsg_sbe45_fwd2 2014-12-12T06:34:03.1647Z 26.4679, 5.44818, 34.9076, 1537.771 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Temperature [C] Conductivity [S/m] Salinity [psu] Speed of Sound [m/s] ------------------------------------------------------------------------------------------------ winch_rapp: Sikuliaq is equipped with a suite of electric winches manufactured by Rapp Marine, consisting of two hydrographic winches with .322 EM cable and a traction winch with two storage reels containing .680 EM cable and 9/16 3x19 trawl wire. The PLC interfaces with a databroker that outputs NMEA data at 20 Hz using ZeroMQ distributed messaging. Sample rate: 20 per second Example data line: winch_rapp 2017-06-01T12:26:37.6783Z @RCWD,2,3,103.64,0.42,-29.95,0,102.96,0.294791*3d Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] ID [@RCWD] Winch Number [1, 2, 6, 7] - see note below Winch Mode [1=manual, 2=auto_payout, 3=auto_haulin] Length [meters] - motor calculated Tension [metric tons] - motor calculated Velocity [meters per minute] Alarm Length [meters] - block counting Tension [metric tons] - load cell CheckSum Note: The ship's typical arrangement is to use Winch #1 for .322 ops off the stern A-frame and Winch #2 for .322 ops off the starboard Load Handling System for CTD casts. Winch #6 refers to Storage Drum 1 which houses the .680, and Winch #7 refers to Storage Drum 2 which houses the 9/16 trawl wire. ------------------------------------------------------------------------------------------------ wind_gill_fwdmast: WindObserver 70/75 Ultrasonic Anemometer Relative wind speed only. Model: 1390-75-B-313 Serial Number: 1351006 - WC45 Location: Forward mast Sample rate: 1 per second Example data line: wind_gill_fwdmast 2014-12-12T07:08:16.3849Z A,356,006.00,M,60,0E Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] Unit ID Wind direction [In degrees relative to bow of ship (DDD)] Wind speed [In increments of 0.01 units (+-MMM.MM)] Units [M Metres per second (m/s)] Status [0 : OK 60 or 66 : Heating enabled and OK if enabled Any other value: Warning or fault condition ] Checksum ------------------------------------------------------------------------------------------------ wind_gill_fwdmast_true: WindObserver 70/75 Ultrasonic Anemometer Computed true wind speed. Uses SeaPath 320+ for reference heading source. Data format had been modified by LDS to use the NMEA standard for sentence MWD (Wind Direction & Speed). Model: 1390-75-B-313 Serial Number: 1351006 - WC45 Location: Forward mast Sample rate: 1 per second Example data line: wind_gill_fwdmast_true 2014-12-12T07:25:11.4542Z $WIMWD,81.4,T,,M,6.9,N,3.6,M*43 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ID Wind direction, 0 to 359 degrees,T[True] Wind direction, 0 to 359 degrees,M[Magnetic] Wind speed, N[knots] Wind speed, M[meters/second] ------------------------------------------------------------------------------------------------ wind_mast_port: R.M. Young Ultrasonic Anemometer (heated) Component of Ship's navigation instrumentation. Relative wind speed only. Model: 85004 Location: Main mast, port side Sample rate: 4 per second Example data line: wind_mast_port 2015-08-19T00:25:29.5382Z $WIMWV,296,R,06.1,N,A*07 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ID Wind direction, 0 to 359 degrees,R Wind speed, Wind speed units[K/M/N/S], Status [A = Data Valid, V = Data invalid] Note: This sensor is not part of the pool of science maintained instrumentation. ------------------------------------------------------------------------------------------------ wind_mast_port_true: R.M. Young Ultrasonic Anemometer (heated) Component of Ship's navigation instrumentation. Data format had been modified by LDS to use the NMEA standard for sentence MWD (Wind Direction & Speed). Model: 85004 Location: Main mast, port side Sample rate: 4 per second Example data line: wind_mast_port_true 2015-08-19T00:06:17.4217Z $WIMWD,60.4,T,,M,12.2,N,6.3,M*72 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ID Wind direction, 0 to 359 degrees,T[True] Wind direction, 0 to 359 degrees,M[Magnetic] Wind speed, N[knots] Wind speed, M[meters/second] Note: This sensor is not part of the pool of science maintained instrumentation. ------------------------------------------------------------------------------------------------ wind_mast_stbd: R.M. Young Ultrasonic Anemometer (heated) Component of Ship's navigation instrumentation. Relative wind speed only. Model: 85004 Location: Main mast, starboard side Sample rate: 4 per second Example data line: wind_mast_stbd 2015-08-19T00:01:45.7871Z $WIMWV,286,R,06.0,N,A*07 Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ID Wind direction, 0 to 359 degrees,R Wind speed, Wind speed units[K/M/N/S], Status [A = Data Valid, V = Data invalid] Note: This sensor is not part of the pool of science maintained instrumentation. ------------------------------------------------------------------------------------------------ wind_mast_stbd_true: R.M. Young Ultrasonic Anemometer (heated) Component of Ship's navigation instrumentation. Data format had been modified by LDS to use the NMEA standard for sentence MWD (Wind Direction & Speed). Model: 85004 Location: Main mast, starboard side Sample rate: 4 per second Example data line: wind_mast_stbd_true 2015-08-19T00:04:01.8781Z $WIMWD,72.7,T,,M,13.1,N,6.8,M*7B Field Descriptions: LDS Logger ID LDS Time Stamp [UTC] NMEA ID Wind direction, 0 to 359 degrees,T[True] Wind direction, 0 to 359 degrees,M[Magnetic] Wind speed, N[knots] Wind speed, M[meters/second] Note: This sensor is not part of the pool of science maintained instrumentation.