Dataset: CR1995_bio_opt

Name: Mooring bio-optical data from the Georges Crest mooring on Georges Bank from Apr - Sept. 1995
Published: 2005-06-14
Keywords: oceans

Cite This Dataset

DOI:10.1575/1912/bco-dmo.2508.1

Spatial Extent: N:41.4077 E:-67.5423 S:41.4077 W:-67.5423

Temporal Extent: 1995-04-01 - 1995-09-03

Project:

U.S. GLOBEC Georges Bank (GB)

Program:

U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)

Principal Investigator:

Jim Irish (Woods Hole Oceanographic Institution, WHOI)

Version:

Version Date:

2005-06-14

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Mooring bio-optical data from the Georges Crest mooring on Georges Bank from Apr - Sept. 1995

Abstract:

Mooring bio-optical data from the Georges Crest mooring on Georges Bank from Apr - Sept. 1995

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2005-06-14	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.2508.1	2019-12-06

Description

GLOBEC Georges Bank Long-term Moored Array Component

CREST Mooring Site
41 24.461 N, 67 32.538 W

This deployment was between Apr 2, 1995 and Sep 30, 1995.

During this deployment the transmissometer record appears to decline at a steady rate during mid-record. This maybe due to biofouling, but this trend does not appear in the fluorometer.


Data Submitted by:

Jim Irish
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

phone:  508 289 2732
fax:    508 457 2195
e-mail: jirish@whoi.edu 

updated 06/14/05; gfh

Methods & Sampling

Two deployments were made at this site. The first deployment was between Oct 28, 1994 and Jan 21, 1995. The second deployment was between Apr 2, 1995 and Sep 30, 1995.

Data Processing Description

During the second deployment the transmissometer record appears to decline at a steady rate during mid-record. This maybe due to biofouling, but this trend does not appear in the fluorometer.

Data Files

File
crest.csv (Comma Separated Values (.csv), 375.58 KB) MD5:693eddc242eb6eaa9fa9a14bfd003a90 Primary data file for dataset ID 2508

More Information about this dataset

Funding Sources

Funding Source	Award Number
National Science Foundation	unknown GB NSF
National Oceanic and Atmospheric Administration	unknown GB NOAA

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Crest		1994-10-28	GB Crest Mooring	Jim Irish (Chief Scientist)	data info

Instruments

Rotronics Temperature and Humidity Probe

Supplied Name: Rotronics

Supplied Description:

Air Temperature

Instrument Type

Generic Name: Rotronics Temperature and Humidity Probe

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

Generic Description:

Rotronics device used to measure air temperature

Sea Tech Fluorometer

Supplied Name: SeaTech Fluorometer

Supplied Description:

Sea Tech chlorophyll-a fluorometer

Instrument Type

Generic Name: Sea Tech Fluorometer

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

Generic Description:

The Sea Tech chlorophyll-a fluorometer has internally selectable settings to adjust for different ranges of chlorophyll concentration, and is designed to measure chlorophyll-a fluorescence in situ. The instrument is stable with time and temperature and uses specially selected optical filters enabling accurate measurements of chlorophyll a. It can be deployed in moored or profiling mode. This instrument designation is used when specific make and model are not known. The Sea Tech Fluorometer was manufactured by Sea Tech, Inc. (Corvalis, OR, USA).

Sea Tech Transmissometer

Supplied Name: SeaTech Transmissometer

Supplied Description:

Sea Tech 25-cm path-length transmissometer

Instrument Type

Generic Name: Sea Tech Transmissometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0003/

Generic Description:

The Sea Tech Transmissometer can be deployed in either moored or profiling mode to estimate the concentration of suspended or particulate matter in seawater. The transmissometer measures the beam attenuation coefficient in the red spectral band (660 nm) of the laser lightsource over the instrument's path-length (e.g. 20 or 25 cm). This instrument designation is used when specific make and model are not known. The Sea Tech Transmissometer was manufactured by Sea Tech, Inc. (Corvalis, OR, USA).

Sea-Bird SBE-3 Temperature Sensor

Supplied Name: SBE-3

Supplied Description:

SBE-3 Temperature

Instrument Type

Generic Name: Sea-Bird SBE-3 Temperature Sensor

Acronym: SBE-3 Temperature

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/134/

Generic Description:

The SBE-3 is a slow response, frequency output temperature sensor manufactured by Sea-Bird Electronics, Inc. (Bellevue, Washington, USA). It has an initial accuracy of +/- 0.001 degrees Celsius with a stability of +/- 0.002 degrees Celsius per year and measures seawater temperature in the range of -5.0 to +35 degrees Celsius. more information from Sea-Bird Electronics

Sea-Bird SBE-4 Conductivity Sensor

Supplied Name: SBE-4

Supplied Description:

SBE-4 Conductivity

Instrument Type

Generic Name: Sea-Bird SBE-4 Conductivity Sensor

Acronym: SBE-4 Conductivity

Community Identifier: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0417/

Generic Description:

The Sea-Bird SBE-4 conductivity sensor is a modular, self-contained instrument that measures conductivity from 0 to 7 Siemens/meter. The sensors (Version 2; S/N 2000 and higher) have electrically isolated power circuits and optically coupled outputs to eliminate any possibility of noise and corrosion caused by ground loops. The sensing element is a cylindrical, flow-through, borosilicate glass cell with three internal platinum electrodes. Because the outer electrodes are connected together, electric fields are confined inside the cell, making the measured resistance (and instrument calibration) independent of calibration bath size or proximity to protective cages or other objects.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
year_start	starting year of mooring deployment		year_start
brief_desc	data type description		brief_desc
lat	latitude, negative = South	decimal degrees	lat
lon	longitude, negative = West	decimal degrees	lon
depth	depth of instrument, negative = height above sea surf.	meters	depth
hour_gmt	time GMT in hours (0-23)	whole hours	hour_gmt
minute_gmt	time GMT in minutes (0-59)	whole minutes	minute_gmt
seconds_gmt	time GMT in seconds	decimal seconds	seconds_gmt
day_gmt	day of month GMT (1-31)		day_gmt
month_gmt	month of year GMT (1-12)		month_gmt
year	year		year
julian_day	Julian day. In this convention, Julian day 2440000 begins at 0000 hours, May 23, 1968	decimal day	julian_day
flvolt	fluorescense	volts	flvolt
trans	light transmission	percent	trans
par_scalar	scalar PAR	microEinstein/meter^2/second	par_scalar
cond	conductivity	seimens/meter	cond
sigma_0	potential density	(kg/m^3)	sigma_0
sal	salinity PSU		sal
temp	water temperature	decimal deg. C	temp
temp_air	air temperature	decimal deg. C	temp_air