Dataset: bio_optics

Name: Bio-optics data from R/V Atlantis II cruises AII-119-4, AII-119-5 in the North Atlantic in 1989 (U.S. JGOFS NABE project)
Published: 1995-06-29
Keywords: oceans

View Data: to access data, check the deployments below

Cite This Dataset

Project:

U.S. JGOFS North Atlantic Bloom Experiment (NABE)

Program:

U.S. Joint Global Ocean Flux Study (U.S. JGOFS)

Principal Investigator:

Dr Curtiss Davis (Naval Research Laboratory)

Dr Charles C. Trees (San Diego State University, SDSU)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

final

Version Date:

1995-06-29

Validated:

Yes

Current State:

Final no updates expected

Bio-optics data from R/V Atlantis II cruises AII-119-4, AII-119-5 in the North Atlantic in 1989 (U.S. JGOFS NABE project)

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Description

Bio Optics Data

Methods & Sampling

Curtiss Davis - Bio Optical Profiler Data, AII-119/4

Charles Trees - Bio-Optical data (60 variables at One-meter resolution), AII 119/5

More Information about this dataset

Funding Sources

Funding Source	Award Number
National Science Foundation	unknown NABE NSF

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
AII-119-4	NABE	1989-04-17	R/V Atlantis II	John F. Marra (Chief Scientist)	data info
AII-119-5		1989-05-15	R/V Atlantis II	Hugh W. Ducklow (Chief Scientist)	data info

Instruments

Bio-Optical Profiling System

Supplied Description:

Optical data was collected with a Bio-Optical Profiling System (BOPS) an updated version of the BOPS originally developed by Smith et al. (1984). The heart of the BOPS is a Biospherical instruments MER-1048 Spectroradiometer which measures up and downwelling spectral irradiance and upwelling spectral radiance. The MER-1048 also has sensors for Photosynthetically Available Radiation (PAR), depth, tilt and roll. In addition, temperature and conductivity are measured with a Sea-Bird CTD, chlorophyll fluorescence is measured with a Sea Tech fluorometer and bean transmission with a Sea Tech 25-cm transmissometer. The Mer-1048 acquires all the data 16 times a second, averages it to four records a second and sends it up the cable to a deck box and a Compaq-286 computer which stores the data on the hard disk. Additionally, a deck cell measures the downwelling surface irradiance in four spectral channels. Also surface PAR was measured continuously using a Biospherical Instruments QSR-240 Integrating PAR sensor. The profile data was filtered to remove obvious data spikes and then binned into one-meter averages.

Instrument Type

Generic Name: Bio-Optical Profiling System

Acronym: BOPS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/122/

Generic Description:

Bio-Optical Profiling System (BOPS) is an updated version of the BOPS originally developed by Smith et al. (1984) and is used to collect optical data. The heart of the BOPS is a Biospherical instruments MER-1048 Spectroradiometer which measures up and downwelling spectral irradiance and upwelling spectral radiance. The MER-1048 also has sensors for Photosynthetically Available Radiation (PAR), depth, tilt and roll. In addition, temperature and conductivity are measured with a Sea-Bird CTD, chlorophyll fluorescence is measured with a Sea Tech fluorometer and beam transmission with a Sea Tech 25-cm transmissometer. The Mer-1048 acquires all the data 16 times a second, averages it to four records a second and sends it up the cable to a deck box and a Compaq-286 computer which stores the data on the hard disk. Additionally, a deck cell measures the downwelling surface irradiance in four spectral channels. Also surface PAR is measured continuously using a Biospherical Instruments QSR-240 Integrating PAR sensor. The profile data is commonly filtered to remove obvious data spikes and then binned into one-meter averages.

Raymond C. Smith, Charles R. Booth, and Jeffrey L. Star, "Oceanographic biooptical profiling system," Appl. Opt. 23, 2791-2797 (1984).

Biospherical QSR-240 surface PAR

Supplied Name: QSR-240

Supplied Description:

Also surface PAR was measured continuously using a Biospherical Instruments QSR-240 Integrating PAR sensor.

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.

CTD Sea-Bird

Supplied Name: SeabirdCTD

Supplied Description:

A Sea-Bird CTD was used to measure temperature and conductivity.

Instrument Type

Generic Name: CTD Sea-Bird

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/130/

Generic Description:

Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics, no specific unit identified. This instrument designation is used when specific make and model are not known. See also other SeaBird instruments listed under CTD. More information from Sea-Bird Electronics.

Sea Tech Fluorometer

Supplied Name: SeaTech Fluorometer

Supplied Description:

A Sea Tech fluorometer used to measure chlorophyll fluorescence.

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:

A Sea Tech 25-cm transmissometer was used to measure bean transmission with.

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).

Spectroradiometer

Supplied Description:

A Biospherical instruments MER-1048 Spectroradiometer measures up and downwelling spectral irradiance and upwelling spectral radiance. The MER-1048 also has sensors for Photosynthetically Available Radiation (PAR), depth, tilt and roll.

Instrument Type

Generic Name: Spectroradiometer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/304/

Generic Description:

A Spectroradiometer or Spectraradiometer is an instrument that measures the intensity and nature of electromagnetic radiation. An ocean color radiometer makes the measurements in a manner optimized for the determination of ocean chlorophyll concentration.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
event	Event number from event log	MMDDhhmm	event
sta	Station number from event log	dimensionless	no_bcodmo_term
cast	Cast number from event log	dimensionless	cast
year	Year, from event log	YYYY	year
mon	Month, from event log	MM	no_bcodmo_term
day	Day, from event log	DD	no_bcodmo_term
time	Time, local time, from event log	hhmm	no_bcodmo_term
lat	Latitude from event log	decimal degrees	lat
lon	Longitude from event log	decimal degrees	lon
pts_per_meter	number of original points per one meter bin	count	no_bcodmo_term
ed_410	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_441	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_488	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_520	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_550	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_560	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_589	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_633	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_656	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_671	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_683	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_694	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
ed_710	downwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
depth	bin averaged sample depth	meters	depth
tilt	instrument tilt (range -45 to 45)	degrees	no_bcodmo_term
roll	instrument roll (range -45 to 45)	degrees	no_bcodmo_term
lu_410	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_441	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_488	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_520	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_550	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_633	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_656	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
lu_683	upwelling spectral radiance at depth	uW/cm^2/nm/str	no_bcodmo_term
eu_410	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_441	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_488	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_520	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_550	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_589	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_671	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
eu_694	upwelling spectral irradiance at depth	uW/cm^2/nm	no_bcodmo_term
trans	light transmission from 25 cm transmissometer	% transmission	trans
fluor	stimulated fluoresence	floro units 0 to 100	fluor
par	Photosynthetically available radiation at depth	quanta/sec/cm^2	PAR
temp	CTD temperature	degrees C	temp
cond	CTD conductivity	mmho/cm	cond
sal	CTD salinity calculated from conductivity	dimensionless	sal
sigma	calculated density	dimensionless	no_bcodmo_term
e_410	spectral irradiance above sea surface	uW/cm^2/nm	no_bcodmo_term
e_520	spectral irradiance above sea surface	uW/cm^2/nm	no_bcodmo_term
e_589	spectral irradiance above sea surface	uW/cm^2/nm	no_bcodmo_term
e_683	spectral irradiance above sea surface	uW/cm^2/nm	no_bcodmo_term
cast_type	either up or down profile for given cast		no_bcodmo_term
E_sfc	spectral irradiance above sea surface at nominal wave length of 456nm	uW/cm^2nm^-1*10^-3	no_bcodmo_term
Kd_411	diffuse attenuation coefficient for Ed_411	m^-1*10^-4	no_bcodmo_term
Ed_411	downwelled irradiance at wave length of 411	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_440	diffuse attenuation coefficient for Ed_440	m^-1*10^-4	no_bcodmo_term
Ed_440	downwelled irradiance at wave length of 440	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_486	diffuse attenuation coefficient for Ed_486	m^-1*10^-4	no_bcodmo_term
Ed_486	downwelled irradiance at wave length of 486	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_519	diffuse attenuation coefficient for Ed_519	m^-1*10^-4	no_bcodmo_term
Ed_519	downwelled irradiance at wave length of 519	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_530	diffuse attenuation coefficient for Ed_530	m^-1*10^-4	no_bcodmo_term
Ed_530	downwelled irradiance at wave length of 530	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_548	diffuse attenuation coefficient for Ed_548	m^-1*10^-4	no_bcodmo_term
Ed_548	downwelled irradiance at wave length of 548	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_588	diffuse attenuation coefficient for Ed_588	m^-1*10^-4	no_bcodmo_term
Ed_588	downwelled irradiance at wave length of 588	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_631	diffuse attenuation coefficient for Ed_631	m^-1*10^-4	no_bcodmo_term
Ed_631	downwelled irradiance at wave length of 631	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_654	diffuse attenuation coefficient for Ed_654	m^-1*10^-4	no_bcodmo_term
Ed_654	downwelled irradiance at wave length of 654	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_669	diffuse attenuation coefficient for Ed_669	m^-1*10^-4	no_bcodmo_term
Ed_669	downwelled irradiance at wave length of 669	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kd_695	diffuse attenuation coefficient for Ed_695	m^-1*10^-4	no_bcodmo_term
Ed_695	downwelled irradiance at wave length of 695	uW/cm^2nm^-1*10^-4	no_bcodmo_term
K_par	diffuse attenuation coefficient for E_par	m^-1*10^-4	no_bcodmo_term
E_par	underwater photosynthetically available radiation	uE/m^2/sec*10^-4	no_bcodmo_term
Ku_410	diffuse attenuation coefficient for Eu_410	m^-1*10^-4	no_bcodmo_term
Ku_440	diffuse attenuation coefficient for Eu_440	m^-1*10^-4	no_bcodmo_term
Eu_440	upwelled irradiance at wave length of 440	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_487	diffuse attenuation coefficient for Eu_487	m^-1*10^-4	no_bcodmo_term
Eu_487	upwelled irradiance at wave length of 487	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_520	diffuse attenuation coefficient for Eu_520	m^-1*10^-4	no_bcodmo_term
Ku_549	diffuse attenuation coefficient for Eu_549	m^-1*10^-4	no_bcodmo_term
Eu_549	upwelled irradiance at wave length of 549	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_588	diffuse attenuation coefficient for Eu_588	m^-1*10^-4	no_bcodmo_term
Eu_588	upwelled irradiance at wave length of 588	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_631	diffuse attenuation coefficient for Eu_631	m^-1*10^-4	no_bcodmo_term
Eu_631	upwelled irradiance at wave length of 631	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Ku_670	diffuse attenuation coefficient for Eu_670	m^-1*10^-4	no_bcodmo_term
Eu_670	upwelled irradiance at wave length of 670	uW/cm^2nm^-1*10^-4	no_bcodmo_term
Kl_412	diffuse attenuation coefficient for Lu_412	m^-1*10^-4	no_bcodmo_term
Lu_412	upwelled radiance at wave length of 412	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_441	diffuse attenuation coefficient for Lu_441	m^-1*10^-4	no_bcodmo_term
Kl_488	diffuse attenuation coefficient for Lu_488	m^-1*10^-4	no_bcodmo_term
Kl_521	diffuse attenuation coefficient for Lu_521	m^-1*10^-4	no_bcodmo_term
Lu_521	upwelled radiance at wave length of 521	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_550	diffuse attenuation coefficient for Lu_550	m^-1*10^-4	no_bcodmo_term
Kl_589	diffuse attenuation coefficient for Lu_589	m^-1*10^-4	no_bcodmo_term
Lu_589	upwelled radiance at wave length of 589	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_710	diffuse attenuation coefficient for Lu_710	m^-1*10^-4	no_bcodmo_term
Lu_710	upwelled radiance at wave length of 710	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
Kl_685	diffuse attenuation coefficient for Lu_685	m^-1*10^-4	no_bcodmo_term
Lu_685	upwelled radiance at wave length of 685	uW/cm^2nm^-1sr^-1*10^-5	no_bcodmo_term
beam	beam attenuation coefficient	millivolts	no_bcodmo_term

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Dataset: bio_optics