Dataset: underway_met_NH
Deployment: NH0307A

underway MET data collected on GLOBEC LTOP cruises aboard R/V New Horizon

Principal Investigator:

Adriana Huyer (Oregon State University, OSU-CEOAS)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. GLOBEC Northeast Pacific (NEP)

Version:

21 May 2012

Version Date:

2012-05-21

Data URL:

https://www.bco-dmo.org/dataset-deployment/455198/data

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Description

Underway MET data collected on GLOBEC LTOP cruises aboard R/V New Horizon. Underway temperature and salinity calibration information is listed in the sensor calibration table (PDF). Additional underway data is also available for GLOBEC LTOP cruises aboard the R/V Wecoma.

Methods & Sampling

Dataset acquisition description

Data was acquired by the R/V New Horizon MET Acquisition Software Version 1.76. BCO-DMO obtained the underway data from http://ltop.coas.oregonstate.edu/das.html

Data Processing Description

Dataset Processing Description

Parameter names were replaced to conform with BCO-DMO conventions. Values of '-99.000' and '-99.0' were replaced with 'nd'. Values of '0.00000' in lat and lon columns were replaced with 'nd'. Time, originally in HHMMSS format, was converted to time_gmt format.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-0000733	NSF Division of Ocean Sciences

Instruments

Barometer

Supplied Description:

Vaisala PTB101C (Range 900-1100 mb; Accuracy + or - 0.3 mb); part of MET station. The Barometer utilizes a static pressure head.

Instrument Type

Generic Name: Barometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0281/

Generic Description:

A barometer is an instrument used to measure atmospheric pressure. There are many types of barometers identified by make and model and method of measurement.

Biospherical QSR-240 surface PAR

Supplied Name: QSR-240

Supplied Description:

Biospherical Instruments QSR-240P; part of MET system. Range 400 to 700 nm. Measures surface PAR.

Instrument Type

Generic Name: Biospherical QSR-240 surface PAR

Acronym: QSR-240

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0071/

Generic Description:

Shipboard radiometer with a PAR spectral response (400-700nm) designed to monitor surface irradiance during underwater light profile measurement. Hemispherical collector measuring 2-pi scalar irradiance.

Eppley Longwave Radiometer

Supplied Description:

Eppley PIR; part of MET station. Long-wave range: 3.5 to 50 um; Short-wave range: 285 to 2800 nm. Measures long- and short-wave radiation.

Instrument Type

Generic Name: Eppley Longwave Radiometer

Acronym: Eppley PIR

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0083/

Generic Description:

The Eppley Precision Infrared Radiometer (PIR) pyrgeometer measures longwave (infrared) radiation. It is housed in a weatherproof titanium canister that has been painted with a very flat black paint that absorbs radiation. A small glass dome at the top of the instrument is covered with an 'interference coating' which allows only infrared radiation to come through. Light levels are detected as temperature changes creating voltages in fine wire coil detectors. more from Eppley Labs

Flow Meter

Supplied Description:

FLO-CAT Flow Meter (Model: C-ES45-B004) located in SBE-21 system aft lab.

Instrument Type

Generic Name: Flow Meter

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/388/

Generic Description:

General term for a sensor that quantifies the rate at which fluids (e.g. water or air) pass through sensor packages, instruments, or sampling devices. A flow meter may be mechanical, optical, electromagnetic, etc.

Fluorometer

Supplied Description:

Wetlabs WetStar fluorometer located in Aft lab (Range 0.03 to 75 ug/L). Fluorometer connected to one of the 4 channels built into the SBE-21.

Instrument Type

Generic Name: Fluorometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/113/

Generic Description:

A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.

Global Positioning System Receiver

Supplied Description:

Ashtech ADU2-1.

Instrument Type

Generic Name: Global Positioning System Receiver

Acronym: GPS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/POS03/

Generic Description:

The Global Positioning System (GPS) is a U.S. space-based radionavigation system that provides reliable positioning, navigation, and timing services to civilian users on a continuous worldwide basis. The U.S. Air Force develops, maintains, and operates the space and control segments of the NAVSTAR GPS transmitter system. Ships use a variety of receivers (e.g. Trimble and Ashtech) to interpret the GPS signal and determine accurate latitude and longitude.

Gyro

Supplied Name: gyro

Supplied Description:

Sperry MK37 Gyro

Instrument Type

Generic Name: Gyro

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0079/

Generic Description:

Compass with a motorized gyroscope that tracks true north (heading).

Knudsen 320 BR deepwater echosounder

Supplied Description:

Knudsen 320BR located in Main Lab.

Instrument Type

Generic Name: Knudsen 320 BR deepwater echosounder

Acronym: Knudsen 320

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/156/

Generic Description:

The Knudsen 320 B/R deepwater echosounder is a digital data logging system used to measure water depth (e.g. depth of the seafloor). The system is configured to work with different frequency transducers. For example, the Edo 323 B is a 12 kHz High Frequency (HF) transducer or it can be configured to work with an array of 3.5 kHz Low Frequency (LF) transducers mounted in the hull of a vessel.

Meteorological Station

Supplied Description:

MET configuration: Meteorological Sensors on Top bridge forward rail; Thermosalinograph in aft lab; Sea Surface Temperature sensors (Hull mounted); GPS Pcode; Gyro; Knudsen Water Depth.
Distance from Mean Water Line to sensors: about 36'.
Air temperature sensor: RM Young 41342LC (Range -50 to +50 degrees C; Accuracy + or - 0.3 deg C).
Wind monitor: RM Young 05103.
Humidity and temperature probe: Vaisala HMP45A (temp range -40 to +60 degrees C; humidity range 0-100%; temp accuracy + or - 0.2 deg C).
Precipitation Gauge: RM Young 50202 (Range 0 to 50 mm; Accuracy + or - 0.1 mm).

Instrument Type

Generic Name: Meteorological Station

Acronym: MET Station

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/102/

Generic Description:

MET station systems are designed to record meteorological information on board ships or mounted on moorings. These are commonly referred to as EMET (Electronic Meteorological Packages) or IMET (Improved Meteorological Packages) systems. These sensor packages record measurements of sea surface temperature and salinity, air temperature, wind speed and direction, barometric pressure, solar and long-wave radiation, humidity and precipitation.

Thermosalinograph

Supplied Description:

Hull-mounted sea surface temperature sensor: STS SEG-14 (Range -2 to +35 degrees C; Accuracy + or - 0.1 deg C). Sensor located in the machine shop compartment, starboard side, between the hull and insulation. Ouput connected to the main MET acquisition computer.

Instrument Type

Generic Name: Thermosalinograph

Acronym: TSG

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/133/

Generic Description:

A thermosalinograph (TSG) is used to obtain a continuous record of sea surface temperature and salinity. On many research vessels the TSG is integrated into the ship's underway seawater sampling system and reported with the underway or alongtrack data.

Thermosalinograph

Supplied Description:

SBE-21 thermosalinograph located in Aft lab (Temp range -5 to +35 degrees C; Cond range 0 to 65 mS/cm). Output connected to the main MET acquisition computer.

Instrument Type

Generic Name: Thermosalinograph

Acronym: TSG

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/133/

Generic Description:

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
cruiseid	Cruise identifier.	dimensionless	cruiseid
month_gmt	Month of year, GMT.	month, 1-12	month_gmt
day_gmt	Day of month, GMT.	day, 1-31	day_gmt
lat	Latitude (south is negative). Originally named 'LA'.	decimal degrees	lat
lon	Longitude (west is negative). Originally named 'LO'.	decimal degrees	lon
temp_air	Air temperature measured by RM Young sensor mounted 36' above mean water line. Originally named 'AT'.	degrees C	temp_air
humidity	Percent relative humidity. Originally named 'RH'.	percent	humidity
press_bar	Barometric pressure in millibars. Originally named 'BP'.	millibars	press_bar
temp2_ss	Sea surface temperature measured by the sensor hull-mounted in the second deck machine room Originally named 'ST-2'.	degreesC	SST
sal_ss	Sea surface salinity, measured by SBE-21 thermosalinograph. Originally named 'SA'.	PSU	sal_ss
temp_air2	Air temperature from the Vaisala humidity/temp sensor mounted 36' above mean water line. Originally named 'RT'.	degrees C	temp_air
yrday	Day of the year.	yearday, 1-365	yrday
wind_speed	True wind speed measured in m/s. Measured by RM Yound instrument mounted 36' above mean water line. Originally named 'TW'.	m/s	wind_speed
radiation_s	Shortwave radiation measured by the pyranometer. Originally named 'SW'.	watts/m^2	radiation_s
PAR	Surface PAR measured in microEinstein(uE)/m^2/sec). Originally named 'PA'.	uE/m^2/sec	PAR
radiation_l	Longwave radiation measured by the pyranometer. Originally named 'LW'.	watts/m^2	radiation_l
wind_dir_r	Relative wind direction measured by the RM Young 05103 sensor. Originally named 'WD'.	degrees	wind_dir_r
cond_ss	Sea surface conductivity, measured by SBE21 thermosalinograph. Originally named 'TC'.	mS/meter	cond_mSm
temp_ss	Sea surface temperature measured by the hull-mounted sensor. Originally named 'ST'.	degrees C	SST
speed_lon	Ship's speed (speed longitude) in knots. Originally named 'SL'.	knots	no_bcodmo_term
head	Ship's heading (gyro compass) in degrees. Originally named 'GY'.	degrees	heading
temp_pir_body	Temperature of the PIR body, measured in degrees K. Originally named 'LB'.	degrees K	no_bcodmo_term
temp_pir_dome	Temperature of the PIR dome, measured in degrees K. Originally named 'LD'.	degrees K	no_bcodmo_term
cog	Ship's course; GPS Course over Ground measured in degrees. Originally named 'CR'.	degrees	cog
sog	Ship's speed (GPS SOG) measured in knots. Originally named 'SP'.	knots	sog
time_gmt	Time, in GMT format. Calculated from time originally in HHMMSS format.	HHMM	time_gmt
temp_ss_SBE	Sea surface temperature measured by the SBE-21 thermosalinograph. Originally named 'TT'.	degrees C	SST
wind_dir_r2	Relative wind direction measured by the RM Young WS425A2C2B sensor. Originally named 'WD-2'.	degrees	wind_dir_r
wind_dir	True wind direction measured by the RM Young 05103 sensor. Originally named 'TI'.	degrees	wind_dir
wind_dir2	True wind direction measured by the RM Young WS425A2C2B sensor. Originally named 'TI-2'.	degrees	wind_dir
time_sec	GPS time in seconds (0-86400). Originally named 'GT'.	seconds	no_bcodmo_term
sigma_t	Sigma T density measured by the SBE-21 thermosalinograph. Originally named 'SD'.	kg/m^3	sigma_t
sound_vel	Sound velocity (Chen/Millero) measured by SBE-21 thermosalinograph. Originally named 'SV'.	m/s	sound_vel
flow	Flowmeter reading (model: Flocat C-ES45-B004). Originally named 'FI'.	LPM	no_bcodmo_term
fluor	Reading from Wetlabs WetStar fluorometer. Originally named 'FL'.	ug/L	fluor
depth_bottom	Bottom depth, in meters, measured by Knudesn 320BR. Originally named 'BT'.	meters	depth_bottom
dew_point	Dew point in degrees C measured by Vaisala device. Originally named 'DP'.	degreees C	no_bcodmo_term
precip	Precipitation measured by RM Young 50202. Originally named 'PR'.	mm	precip_level
pir_volts	Long wave radiation thermopile voltage in micro-Volts. Instrument: Eppley Labs PIR. Originally named 'LT'.	uV	no_bcodmo_term
head2	Heading, in degrees, from Ashtech ADU2-1 GPS. Originally named 'SH'.	degrees	head2
wind_speed_r	Wind speed, measured by RM Young instrument mounted 36' above mean water line. Originally named 'WS'.	m/s	wind_speed_r
wind_speed_r2	Second measurement of wind speed in m/s. Originally named 'WS-2'.	m/s	wind_speed_r
wind_speed2	Second measurement of true wind speed in m/s. Originally named 'TW-2'.	m/s	wind_speed
pitch	Pitch, in degrees, measured by Ashtech ADU2-1. Originally named 'SM'.	degrees	no_bcodmo_term
roll	Roll, in degrees, measured by Ashtech ADU2-1. Originally named 'SR'.	degrees	no_bcodmo_term
ISO_DateTime_UTC	Date and time (UTC) formatted to ISO8601 standard. T indicates start of time string; Z indicates UTC.	YYYY-mm-ddTHH:MM:SS.ssZ	ISO_DateTime_UTC

Database

Contribute Data

Dataset: underway_met_NH
Deployment: NH0307A

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: underway_met_NHDeployment: NH0307A

Dataset acquisition description

Dataset Processing Description

Dataset: underway_met_NH
Deployment: NH0307A