Dataset: alongtrack_AT15-61

Name: Alongtrack data from R/V Atlantis AT15-61 in the Eastern Tropical South Pacific from January 2010 (Syne_ETSP project)
Published: 2012-03-02
Keywords: oceans

Cite This Dataset

Spatial Extent: N:-9.916933 E:-70.154553 S:-20.201555 W:-100.092287

Project:

RAPID: Synechococcus diversity and Fe stress and the relationship to dissolved metals in the Eastern Tropical South Pacific (Syne_ETSP)

Chief Scientist:

Douglas G. Capone (University of Southern California, USC)

Douglas G. Capone (University of Southern California, USC-WIES)

Contact:

Eric A. Webb (University of Southern California, USC)

Eric A. Webb (University of Southern California, USC-HIMS)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version Date:

2012-03-02

Validated:

Yes

Current State:

Final no updates expected

Alongtrack data from R/V Atlantis AT15-61 in the Eastern Tropical South Pacific from January 2010 (Syne_ETSP project)

Expand/Collapse All

Description

The alongtrack data from RV/Atlantis cruise 15-61 were recorded by the shipboard data acquisition system (Calliope).

The research objectives and planned science activities on this cruise include upper water column biogeochemistry and shallow and deep sediment trap deployment at six major (> 24h) stations and 6 minor (< 24h) stations in the Peru Basin.

Data Files

File
alongtrack.csv (Comma Separated Values (.csv), 8.45 MB) MD5:ba62c75ce6656c6e86c50b6781757b53 Primary data file for dataset ID 3629

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-0850801
NSF Division of Ocean Sciences	OCE-0850905
NSF Division of Ocean Sciences	OCE-0943319

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AT15-61	ETSP2010	2010-01-29	R/V Atlantis	Douglas G. Capone (Chief Scientist) William M. Berelson (Co-Chief Scientist)	data info

Instruments

Anemometer

Supplied Description:

Gill WindObserver II Ultrasonic Anemometer

Instrument Type

Generic Name: Anemometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/101/

Generic Description:

An anemometer is a device for measuring the velocity or the pressure of the wind. It is commonly used to measure wind speed. Aboard research vessels, it is often mounted with other meteorological instruments and sensors.

Fluorometer

Supplied Description:

WetLabs Wet-Star fluorometer located in the Hydro 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.

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:

NorthStar 941 GPS receiver NMEA (National Marine Electronics Association) 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)

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.

Improved Meteorological Recorder

Supplied Description:

Sensors mounted on the bow mast at a height of 20 m above the waterline.

http://www.whoi.edu/page.do?cid=11368&pid=8415&tid=282

Instrument Type

Generic Name: Improved Meteorological Recorder

Acronym: IMET

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

Generic Description:

An IMET Recorder is an instrument package that can be mounted on a ship or buoy to record mean weather data including air and sea-surface temperature, incoming short and long-wave radiation, precipitation, humidity, wind velocity and barometric pressure. Each sensor in the system communicates digitally and returns calibrated values to a central data recorder.

Knudsen 320 BR deepwater echosounder

Supplied Description:

Knudsen bathymetry ( Knudsen) Depth to surface (meters).
Format:
$PKEL99,HF,xx.xx,cc.cc,LF,yy.yy,cc.cc,ssss,lat,lon
"HF" High freq header
xx.xx 12 kHz depth to surface using cc.cc & ssss corrections (meters)
cc.cc depth of 12 kHz transducer (meters)
"LF" Low freq header
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 5.95m (19.5 ft) depth on Atlantis.

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.

Thermosalinograph

Supplied Description:

Seabird SBE 45 MicroTSG -or- Falmouth Scientific TSG. Located in bow thruster room; intake ~5m BWL

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.

Weather Transmitter

Supplied Name: Weather transmitter

Supplied Description:

Instrument Type

Generic Name: Weather Transmitter

Acronym: WXT520

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

Generic Description:

The ship-mounted Vaisala Weather Transmitter WXT520 measures: Wind speed and direction; Liquid precipitation: rainfall, duration, intensity; Barometric pressure; Air temperature and Relative humidity. (for more information see http://www.vaisala.com/en/products/multiweathersensors/Pages/WXT520.aspx)

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
cog	GPS course over ground	degrees	cog
cond_ss	Sea Surface Conductivity (FSI)	mmho/cm or milli-Siemens/centimeter	cond_ss
yrday_gmt	GMT day and decimal time, as 326.5 for the 326th day of the year, or November 22 at 1200 hours (noon).	no units	yrday_gmt
flvolt	Fluorescence	mV	flvolt
head	Ship's heading	degrees true	heading
head2	ship's heading using Phins	degrees true	head2
humidity	IMET % relative humidity	%	humidity
humidity2	Relative humidity from port side using WXT520	%	humidity
lat	Decimal Latitude; South is negative	decimal degrees	lat
lon	Decimal Longitude; West is negative	decimal degrees	lon
press_bar	Barometric pressure; not corrected for 19.5m height above waterline	no units	press_bar
press_bar2	Barometric pressure from port side using WXT520	no units	press_bar
radiation_s	IMET Shortwave Radiation	watts/square meter	radiation_s
rain_accum	Rain accumulation from port side using WXT520	mm	precip_level
rain_intensity	Rain intensity from port side using WXT520	mm/h	precip_rate
sal_ss	Salinity calculated from SST and SSC	psu?	sal_ss
sog	GPS speed over ground	knots	sog
sound_vel	Sound velocity	meters/second	sound_vel
temp_air	Air Temp	degrees C	temp_air
temp_air2	Air temperature from port side using WXT520	degrees C	temp_air
temp_ss	Sea Surface Temperature	degrees C	SST
time_gmt	GMT Time	hh:mm:ss	time_gmt
wind_dir_c	True Wind Direction	deg	wind_dir_c
wind_dir_r	Relative wind direction from port side using WXT520	degrees ship relative	wind_dir_r
wind_speed_c	True Wind Speed	m/s	wind_speed_c
wind_speed_r	Relative wind speed from port side using WXT520	m/sec	wind_speed_r

Status message

Database

Contribute Data

Dataset: alongtrack_AT15-61