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
year

year

YYYY
event

unique event identifier

MMDDhhmm
sta

station number

dimensionless
cast

cast

dimensionless
cast_type

cast type

dimensionless
lat

latitude; negative = South

decimal degrees
lon

longitude; negative = West

decimal degrees
depth

depth

meters
E_sfc

spectral irradiance above sea surface at nominal wave length of 456 nm

uW/cm^2nm^-1*10^-3
Kd_411

diffuse attenuation coefficient for Ed_411

m^-1*10^-4
Ed_411

downwelling spectral irradiance at wave length of 411

uW/cm^2nm^-1*10^-4
Kd_440

diffuse attenuation coefficient for Ed_440

m^-1*10^-4
Ed_440

downwelling spectral irradiance at wave length of 440

uW/cm^2nm^-1*10^-4
Kd_486

diffuse attenuation coefficient for Ed_486

m^-1*10^-4
Ed_486

downwelling spectral irradiance at wave length of 486

uW/cm^2nm^-1*10^-4
Kd_519

diffuse attenuation coefficient for Ed_519

m^-1*10^-4
Ed_519

downwelling spectral irradiance at wave length of 519

uW/cm^2nm^-1*10^-4
Kd_530

diffuse attenuation coefficient for Ed_530

m^-1*10^-4
Ed_530

downwelling spectral irradiance at wave length of 530

uW/cm^2nm^-1*10^-4
Kd_548

diffuse attenuation coefficient for Ed_548

m^-1*10^-4
Ed_548

downwelling spectral irradiance at wave length of 548

uW/cm^2nm^-1*10^-4
Kd_588

diffuse attenuation coefficient for Ed_588

m^-1*10^-4
Ed_588

downwelling spectral irradiance at wave length of 588

uW/cm^2nm^-1*10^-4
Kd_631

diffuse attenuation coefficient for Ed_631

m^-1*10^-4
Ed_631

downwelling spectral irradiance at wave length of 631

uW/cm^2nm^-1*10^-4
Kd_654

diffuse attenuation coefficient for Ed_654

m^-1*10^-4
Ed_654

downwelling spectral irradiance at wave length of 654

uW/cm^2nm^-1*10^-4
Kd_669

diffuse attenuation coefficient for Ed_669

m^-1*10^-4
Ed_669

downwelling spectral irradiance at wave length of 669

uW/cm^2nm^-1*10^-4
Kd_695

diffuse attenuation coefficient for Ed_695

m^-1*10^-4
Ed_695

downwelling spectral irradiance at wave length of 695

uW/cm^2nm^-1*10^-4
K_par

diffuse attenuation coefficient for E_par

m^-1*10^-4
E_par

upwelling spectral photosynthetically available radiation

uE/m^2/sec*10^-4
Ku_410

diffuse attenuation coefficient for Eu_410

m^-1*10^-4
Eu_410

upwelling spectral irradiance at wave length of 410

uW/cm^2nm^-1*10^-4
Ku_440

diffuse attenuation coefficient for Eu_440

m^-1*10^-4
Eu_440

upwelling spectral irradiance at wave length of 440

uW/cm^2nm^-1*10^-4
Ku_487

diffuse attenuation coefficient for Eu_487

m^-1*10^-4
Eu_487

upwelling spectral irradiance at wave length of 487

uW/cm^2nm^-1*10^-4
Ku_520

diffuse attenuation coefficient for Eu_520

m^-1*10^-4
Eu_520

upwelling spectral irradiance at wave length of 520

uW/cm^2nm^-1*10^-4
Ku_549

diffuse attenuation coefficient for Eu_549

m^-1*10^-4
Eu_549

upwelling spectral irradiance at wave length of 549

uW/cm^2nm^-1*10^-4
Ku_588

diffuse attenuation coefficient for Eu_588

m^-1*10^-4
Eu_588

upwelling spectral irradiance at wave length of 588

uW/cm^2nm^-1*10^-4
Ku_631

diffuse attenuation coefficient for Eu_631

m^-1*10^-4
Eu_631

upwelling spectral irradiance at wave length of 631

uW/cm^2nm^-1*10^-4
Ku_670

diffuse attenuation coefficient for Eu_670

m^-1*10^-4
Eu_670

upwelling spectral irradiance at wave length of 670

uW/cm^2nm^-1*10^-4
Kl_412

diffuse attenuation coefficient for Lu_412

m^-1*10^-4
Lu_412

upwelling spectral radiance at wave length of 412

uW/cm^2nm^-1sr^-1*10^-5
Kl_441

diffuse attenuation coefficient for Lu_441

m^-1*10^-4
Lu_441

upwelling spectral radiance at wave length of 441

uW/cm^2nm^-1sr^-1*10^-5
Kl_488

diffuse attenuation coefficient for Lu_488

m^-1*10^-4
Lu_488

upwelling spectral radiance at wave length of 488

uW/cm^2nm^-1sr^-1*10^-5
Kl_521

diffuse attenuation coefficient for Lu_521

m^-1*10^-4
Lu_521

upwelling spectral radiance at wave length of 521

uW/cm^2nm^-1sr^-1*10^-5
Kl_550

diffuse attenuation coefficient for Lu_550

m^-1*10^-4
Lu_550

upwelling spectral radiance at wave length of 550

uW/cm^2nm^-1sr^-1*10^-5
Kl_589

diffuse attenuation coefficient for Lu_589

m^-1*10^-4
Lu_589

upwelling spectral radiance at wave length of 589

uW/cm^2nm^-1sr^-1*10^-5
Kl_685

diffuse attenuation coefficient for Lu_685

m^-1*10^-4
Lu_685

upwelling spectral radiance at wave length of 685

uW/cm^2nm^-1sr^-1*10^-5
Kl_710

diffuse attenuation coefficient for Lu_710

m^-1*10^-4
Lu_710

upwelling spectral radiance at wave length of 710

uW/cm^2nm^-1sr^-1*10^-5
temp

temperature

millidegrees C
beam

beam attenuation

millivolts
fluor

fluorescence

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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