Bio-Optical Profiler data from R/V Atlantis II cruise AII-119-5 in the North Atlantic in 1989 (U.S. JGOFS NABE project)

Website: https://www.bco-dmo.org/dataset/2803
Version: June 29, 1995
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
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-Optical data (60 variables at one-meter resolution)


Methods & Sampling

   PI:             Charles Trees
   of:             San Diego State University
   dataset:        Bio Optical Profiler Data
   dates:          May 18, 1989 to June 6, 1989 
   location:       N: 47.0112  S: 46.2827  W: -20.1635  E: -19.0353
   project/cruise  North Atlantic Bloom Experiment/Atlantis II 119, leg 5
   ship:           R/V 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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Data Files

File
optics-5.csv
(Comma Separated Values (.csv), 1.45 MB)
MD5:75aae1e11fa1e34567565e99c065c292
Primary data file for dataset ID 2803

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Parameters

ParameterDescriptionUnits
yearyear YYYY
eventunique event identifier MMDDhhmm
stastation number dimensionless
castcast dimensionless
cast_typecast type dimensionless
latlatitude; negative = South decimal degrees
lonlongitude; negative = West decimal degrees
depthdepth meters
E_sfcspectral irradiance above sea surface at nominal wave length of 456 nm uW/cm^2nm^-1*10^-3
Kd_411diffuse attenuation coefficient for Ed_411 m^-1*10^-4
Ed_411downwelling spectral irradiance at wave length of 411 uW/cm^2nm^-1*10^-4
Kd_440diffuse attenuation coefficient for Ed_440 m^-1*10^-4
Ed_440downwelling spectral irradiance at wave length of 440 uW/cm^2nm^-1*10^-4
Kd_486diffuse attenuation coefficient for Ed_486 m^-1*10^-4
Ed_486downwelling spectral irradiance at wave length of 486 uW/cm^2nm^-1*10^-4
Kd_519diffuse attenuation coefficient for Ed_519 m^-1*10^-4
Ed_519downwelling spectral irradiance at wave length of 519 uW/cm^2nm^-1*10^-4
Kd_530diffuse attenuation coefficient for Ed_530 m^-1*10^-4
Ed_530downwelling spectral irradiance at wave length of 530 uW/cm^2nm^-1*10^-4
Kd_548diffuse attenuation coefficient for Ed_548 m^-1*10^-4
Ed_548downwelling spectral irradiance at wave length of 548 uW/cm^2nm^-1*10^-4
Kd_588diffuse attenuation coefficient for Ed_588 m^-1*10^-4
Ed_588downwelling spectral irradiance at wave length of 588 uW/cm^2nm^-1*10^-4
Kd_631diffuse attenuation coefficient for Ed_631 m^-1*10^-4
Ed_631downwelling spectral irradiance at wave length of 631 uW/cm^2nm^-1*10^-4
Kd_654diffuse attenuation coefficient for Ed_654 m^-1*10^-4
Ed_654downwelling spectral irradiance at wave length of 654 uW/cm^2nm^-1*10^-4
Kd_669diffuse attenuation coefficient for Ed_669 m^-1*10^-4
Ed_669downwelling spectral irradiance at wave length of 669 uW/cm^2nm^-1*10^-4
Kd_695diffuse attenuation coefficient for Ed_695 m^-1*10^-4
Ed_695downwelling spectral irradiance at wave length of 695 uW/cm^2nm^-1*10^-4
K_pardiffuse attenuation coefficient for E_par m^-1*10^-4
E_parupwelling spectral photosynthetically available radiation uE/m^2/sec*10^-4
Ku_410diffuse attenuation coefficient for Eu_410 m^-1*10^-4
Eu_410upwelling spectral irradiance at wave length of 410 uW/cm^2nm^-1*10^-4
Ku_440diffuse attenuation coefficient for Eu_440 m^-1*10^-4
Eu_440upwelling spectral irradiance at wave length of 440 uW/cm^2nm^-1*10^-4
Ku_487diffuse attenuation coefficient for Eu_487 m^-1*10^-4
Eu_487upwelling spectral irradiance at wave length of 487 uW/cm^2nm^-1*10^-4
Ku_520diffuse attenuation coefficient for Eu_520 m^-1*10^-4
Eu_520upwelling spectral irradiance at wave length of 520 uW/cm^2nm^-1*10^-4
Ku_549diffuse attenuation coefficient for Eu_549 m^-1*10^-4
Eu_549upwelling spectral irradiance at wave length of 549 uW/cm^2nm^-1*10^-4
Ku_588diffuse attenuation coefficient for Eu_588 m^-1*10^-4
Eu_588upwelling spectral irradiance at wave length of 588 uW/cm^2nm^-1*10^-4
Ku_631diffuse attenuation coefficient for Eu_631 m^-1*10^-4
Eu_631upwelling spectral irradiance at wave length of 631 uW/cm^2nm^-1*10^-4
Ku_670diffuse attenuation coefficient for Eu_670 m^-1*10^-4
Eu_670upwelling spectral irradiance at wave length of 670 uW/cm^2nm^-1*10^-4
Kl_412diffuse attenuation coefficient for Lu_412 m^-1*10^-4
Lu_412upwelling spectral radiance at wave length of 412 uW/cm^2nm^-1sr^-1*10^-5
Kl_441diffuse attenuation coefficient for Lu_441 m^-1*10^-4
Lu_441upwelling spectral radiance at wave length of 441 uW/cm^2nm^-1sr^-1*10^-5
Kl_488diffuse attenuation coefficient for Lu_488 m^-1*10^-4
Lu_488upwelling spectral radiance at wave length of 488 uW/cm^2nm^-1sr^-1*10^-5
Kl_521diffuse attenuation coefficient for Lu_521 m^-1*10^-4
Lu_521upwelling spectral radiance at wave length of 521 uW/cm^2nm^-1sr^-1*10^-5
Kl_550diffuse attenuation coefficient for Lu_550 m^-1*10^-4
Lu_550upwelling spectral radiance at wave length of 550 uW/cm^2nm^-1sr^-1*10^-5
Kl_589diffuse attenuation coefficient for Lu_589 m^-1*10^-4
Lu_589upwelling spectral radiance at wave length of 589 uW/cm^2nm^-1sr^-1*10^-5
Kl_685diffuse attenuation coefficient for Lu_685 m^-1*10^-4
Lu_685upwelling spectral radiance at wave length of 685 uW/cm^2nm^-1sr^-1*10^-5
Kl_710diffuse attenuation coefficient for Lu_710 m^-1*10^-4
Lu_710upwelling spectral radiance at wave length of 710 uW/cm^2nm^-1sr^-1*10^-5
temptemperature millidegrees C
beambeam attenuation millivolts
fluorfluorescence millivolts


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Instruments

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


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Deployments

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


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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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