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)

Website: https://www.bco-dmo.org/dataset/2584
Version: final
Version Date: 1995-06-29

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

Program
» U.S. Joint Global Ocean Flux Study (U.S. JGOFS)
ContributorsAffiliationRole
Davis, CurtissNaval Research LaboratoryPrincipal Investigator
Trees, Charles C.San Diego State University (SDSU)Principal Investigator
Chandler, Cynthia L.Woods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset 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


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Parameters

ParameterDescriptionUnits
eventEvent number from event log MMDDhhmm
staStation number from event log dimensionless
castCast number from event log dimensionless
yearYear, from event log YYYY
monMonth, from event log MM
dayDay, from event log DD
timeTime, local time, from event log hhmm
latLatitude from event log decimal degrees
lonLongitude from event log decimal degrees
pts_per_meternumber of original points per one meter bin count
ed_410downwelling spectral irradiance at depth uW/cm^2/nm
ed_441downwelling spectral irradiance at depth uW/cm^2/nm
ed_488downwelling spectral irradiance at depth uW/cm^2/nm
ed_520downwelling spectral irradiance at depth uW/cm^2/nm
ed_550downwelling spectral irradiance at depth uW/cm^2/nm
ed_560downwelling spectral irradiance at depth uW/cm^2/nm
ed_589downwelling spectral irradiance at depth uW/cm^2/nm
ed_633downwelling spectral irradiance at depth uW/cm^2/nm
ed_656downwelling spectral irradiance at depth uW/cm^2/nm
ed_671downwelling spectral irradiance at depth uW/cm^2/nm
ed_683downwelling spectral irradiance at depth uW/cm^2/nm
ed_694downwelling spectral irradiance at depth uW/cm^2/nm
ed_710downwelling spectral irradiance at depth uW/cm^2/nm
depthbin averaged sample depth meters
tiltinstrument tilt (range -45 to 45) degrees
rollinstrument roll (range -45 to 45) degrees
lu_410upwelling spectral radiance at depth uW/cm^2/nm/str
lu_441upwelling spectral radiance at depth uW/cm^2/nm/str
lu_488upwelling spectral radiance at depth uW/cm^2/nm/str
lu_520upwelling spectral radiance at depth uW/cm^2/nm/str
lu_550upwelling spectral radiance at depth uW/cm^2/nm/str
lu_633upwelling spectral radiance at depth uW/cm^2/nm/str
lu_656upwelling spectral radiance at depth uW/cm^2/nm/str
lu_683upwelling spectral radiance at depth uW/cm^2/nm/str
eu_410upwelling spectral irradiance at depth uW/cm^2/nm
eu_441upwelling spectral irradiance at depth uW/cm^2/nm
eu_488upwelling spectral irradiance at depth uW/cm^2/nm
eu_520upwelling spectral irradiance at depth uW/cm^2/nm
eu_550upwelling spectral irradiance at depth uW/cm^2/nm
eu_589upwelling spectral irradiance at depth uW/cm^2/nm
eu_671upwelling spectral irradiance at depth uW/cm^2/nm
eu_694upwelling spectral irradiance at depth uW/cm^2/nm
translight transmission from 25 cm transmissometer % transmission
fluorstimulated fluoresence floro units 0 to 100
parPhotosynthetically available radiation at depth quanta/sec/cm^2
tempCTD temperature degrees C
condCTD conductivity mmho/cm
salCTD salinity calculated from conductivity dimensionless
sigmacalculated density dimensionless
e_410spectral irradiance above sea surface uW/cm^2/nm
e_520spectral irradiance above sea surface uW/cm^2/nm
e_589spectral irradiance above sea surface uW/cm^2/nm
e_683spectral irradiance above sea surface uW/cm^2/nm
cast_typeeither up or down profile for given cast
E_sfcspectral irradiance above sea surface at nominal wave length of 456nm uW/cm^2nm^-1*10^-3
Kd_411diffuse attenuation coefficient for Ed_411 m^-1*10^-4
Ed_411downwelled irradiance at wave length of 411 uW/cm^2nm^-1*10^-4
Kd_440diffuse attenuation coefficient for Ed_440 m^-1*10^-4
Ed_440downwelled irradiance at wave length of 440 uW/cm^2nm^-1*10^-4
Kd_486diffuse attenuation coefficient for Ed_486 m^-1*10^-4
Ed_486downwelled irradiance at wave length of 486 uW/cm^2nm^-1*10^-4
Kd_519diffuse attenuation coefficient for Ed_519 m^-1*10^-4
Ed_519downwelled irradiance at wave length of 519 uW/cm^2nm^-1*10^-4
Kd_530diffuse attenuation coefficient for Ed_530 m^-1*10^-4
Ed_530downwelled irradiance at wave length of 530 uW/cm^2nm^-1*10^-4
Kd_548diffuse attenuation coefficient for Ed_548 m^-1*10^-4
Ed_548downwelled irradiance at wave length of 548 uW/cm^2nm^-1*10^-4
Kd_588diffuse attenuation coefficient for Ed_588 m^-1*10^-4
Ed_588downwelled irradiance at wave length of 588 uW/cm^2nm^-1*10^-4
Kd_631diffuse attenuation coefficient for Ed_631 m^-1*10^-4
Ed_631downwelled irradiance at wave length of 631 uW/cm^2nm^-1*10^-4
Kd_654diffuse attenuation coefficient for Ed_654 m^-1*10^-4
Ed_654downwelled irradiance at wave length of 654 uW/cm^2nm^-1*10^-4
Kd_669diffuse attenuation coefficient for Ed_669 m^-1*10^-4
Ed_669downwelled irradiance at wave length of 669 uW/cm^2nm^-1*10^-4
Kd_695diffuse attenuation coefficient for Ed_695 m^-1*10^-4
Ed_695downwelled irradiance at wave length of 695 uW/cm^2nm^-1*10^-4
K_pardiffuse attenuation coefficient for E_par m^-1*10^-4
E_parunderwater photosynthetically available radiation uE/m^2/sec*10^-4
Ku_410diffuse attenuation coefficient for Eu_410 m^-1*10^-4
Ku_440diffuse attenuation coefficient for Eu_440 m^-1*10^-4
Eu_440upwelled irradiance at wave length of 440 uW/cm^2nm^-1*10^-4
Ku_487diffuse attenuation coefficient for Eu_487 m^-1*10^-4
Eu_487upwelled irradiance at wave length of 487 uW/cm^2nm^-1*10^-4
Ku_520diffuse attenuation coefficient for Eu_520 m^-1*10^-4
Ku_549diffuse attenuation coefficient for Eu_549 m^-1*10^-4
Eu_549upwelled irradiance at wave length of 549 uW/cm^2nm^-1*10^-4
Ku_588diffuse attenuation coefficient for Eu_588 m^-1*10^-4
Eu_588upwelled irradiance at wave length of 588 uW/cm^2nm^-1*10^-4
Ku_631diffuse attenuation coefficient for Eu_631 m^-1*10^-4
Eu_631upwelled irradiance at wave length of 631 uW/cm^2nm^-1*10^-4
Ku_670diffuse attenuation coefficient for Eu_670 m^-1*10^-4
Eu_670upwelled irradiance at wave length of 670 uW/cm^2nm^-1*10^-4
Kl_412diffuse attenuation coefficient for Lu_412 m^-1*10^-4
Lu_412upwelled radiance at wave length of 412 uW/cm^2nm^-1sr^-1*10^-5
Kl_441diffuse attenuation coefficient for Lu_441 m^-1*10^-4
Kl_488diffuse attenuation coefficient for Lu_488 m^-1*10^-4
Kl_521diffuse attenuation coefficient for Lu_521 m^-1*10^-4
Lu_521upwelled radiance at wave length of 521 uW/cm^2nm^-1sr^-1*10^-5
Kl_550diffuse attenuation coefficient for Lu_550 m^-1*10^-4
Kl_589diffuse attenuation coefficient for Lu_589 m^-1*10^-4
Lu_589upwelled radiance at wave length of 589 uW/cm^2nm^-1sr^-1*10^-5
Kl_710diffuse attenuation coefficient for Lu_710 m^-1*10^-4
Lu_710upwelled radiance at wave length of 710 uW/cm^2nm^-1sr^-1*10^-5
Kl_685diffuse attenuation coefficient for Lu_685 m^-1*10^-4
Lu_685upwelled radiance at wave length of 685 uW/cm^2nm^-1sr^-1*10^-5
beambeam attenuation coefficient millivolts


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Instruments

Dataset-specific Instrument Name
SeabirdCTD
Generic Instrument Name
CTD Sea-Bird
Dataset-specific Description
A Sea-Bird CTD was used to measure temperature and conductivity.
Generic Instrument 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.

Dataset-specific Instrument Name
SeaTech Transmissometer
Generic Instrument Name
Sea Tech Transmissometer
Dataset-specific Description
A Sea Tech 25-cm transmissometer was used to measure bean transmission with.
Generic Instrument 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).

Dataset-specific Instrument Name
SeaTech Fluorometer
Generic Instrument Name
Sea Tech Fluorometer
Dataset-specific Description
A Sea Tech fluorometer used to measure chlorophyll fluorescence.
Generic Instrument 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).

Dataset-specific Instrument Name
Spectroradiometer
Generic Instrument Name
Spectroradiometer
Dataset-specific 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.
Generic Instrument 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.

Dataset-specific Instrument Name
Bio-Optical Profiling System
Generic Instrument Name
Bio-Optical Profiling System
Dataset-specific 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.
Generic Instrument 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).

Dataset-specific Instrument Name
QSR-240
Generic Instrument Name
Biospherical QSR-240 surface PAR
Dataset-specific Description
Also surface PAR was measured continuously using a Biospherical Instruments QSR-240 Integrating PAR sensor.
Generic Instrument 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.


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Deployments

AII-119-4

Website
Platform
R/V Atlantis II
Start Date
1989-04-17
End Date
1989-05-11
Description
early bloom cruise; 17 locations; 60N 21W to 46N 18W

Methods & Sampling
PI: Curtiss Davis of: Jet Propusion Laboratory dataset: Bio Optical Profiler Data dates: April 25, 1989 to May 08, 1989 location: N: 47.0112 S: 46.2827 W: -20.1635 E: -19.0353 project/cruise North Atlantic Bloom Experiment/Atlantis II 119, leg 4 ship: R/V Atlantis II JGOFS North Atlantic Bloom Experiment Bio-Optical profiling observations R/V Atlantis II, 25 April - 10 May 1989November 07, 2002 Data 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. Reference: Smith, R.C., C.R. Booth, and J.L. Star, Oceanographic bio-optical profiling system. Applied Optics, 23, 2791-2797, 1984

AII-119-5

Website
Platform
R/V Atlantis II
Start Date
1989-05-15
End Date
1989-06-06
Description
late bloom cruise; 31 locations; 61N 22W to 41N 17W

Methods & Sampling
PI: Charles Trees of: San Diego State University dataset: Bio-Optical data (60 variables at One-meter resolution) dates: May 18, 1989 to June 06, 1989 location: N: 59.535 S: 46.27 W: -20.785 E: -17.6933 project/cruise: North Atlantic Bloom Experiment/Atlantis II 119, leg 5 ship: Atlantis II references: Mueller, J.L. 1991. Integral method for irradiance profile analysis. Center for Hydro-Optics and Remote Sensing Memo. 007-91. San Diego State University, San Diego, CA, 10 pp. Mueller, J.L. & R.W. Austin. 1995. Ocean Optics Protocols for SeaWiFS Validation, Rev. I. NASA Tech Memo 104566, Volume 25, Chapter 6; Analytical Methods, p. 49-52.


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Project Information

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


Coverage: North Atlantic


One of the first major activities of JGOFS was a multinational pilot project, North Atlantic Bloom Experiment (NABE), carried out along longitude 20° West in 1989 through 1991. The United States participated in 1989 only, with the April deployment of two sediment trap arrays at 48° and 34° North. Three process-oriented cruises where conducted, April through July 1989, from R/V Atlantis II and R/V Endeavor focusing on sites at 46° and 59° North. Coordination of the NABE process-study cruises was supported by NSF-OCE award # 8814229. Ancillary sea surface mapping and AXBT profiling data were collected from NASA's P3 aircraft for a series of one day flights, April through June 1989.

A detailed description of NABE and the initial synthesis of the complete program data collection efforts appear in: Topical Studies in Oceanography, JGOFS: The North Atlantic Bloom Experiment (1993), Deep-Sea Research II, Volume 40 No. 1/2.

The U.S. JGOFS Data management office compiled a preliminary NABE data report of U.S. activities: Slagle, R. and G. Heimerdinger, 1991. U.S. Joint Global Ocean Flux Study, North Atlantic Bloom Experiment, Process Study Data Report P-1, April-July 1989. NODC/U.S. JGOFS Data Management Office, Woods Hole Oceanographic Institution, 315 pp. (out of print).



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Program Information

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


Coverage: Global


The United States Joint Global Ocean Flux Study was a national component of international JGOFS and an integral part of global climate change research.

The U.S. launched the Joint Global Ocean Flux Study (JGOFS) in the late 1980s to study the ocean carbon cycle. An ambitious goal was set to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. A new field of ocean biogeochemistry emerged with an emphasis on quality measurements of carbon system parameters and interdisciplinary field studies of the biological, chemical and physical process which control the ocean carbon cycle. As we studied ocean biogeochemistry, we learned that our simple views of carbon uptake and transport were severely limited, and a new "wave" of ocean science was born. U.S. JGOFS has been supported primarily by the U.S. National Science Foundation in collaboration with the National Oceanic and Atmospheric Administration, the National Aeronautics and Space Administration, the Department of Energy and the Office of Naval Research. U.S. JGOFS, ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).



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Funding

Funding SourceAward
National Science Foundation (NSF)

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