Contributors | Affiliation | Role |
---|---|---|
Davis, Curtiss | U.S. Naval Research Laboratory (NRL) | Principal 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 |
Bio Optics Data
Curtiss Davis - Bio Optical Profiler Data, AII-119/4
Charles Trees - Bio-Optical data (60 variables at One-meter resolution), AII 119/5
Parameter | Description | Units |
event | Event number from event log | MMDDhhmm |
sta | Station number from event log | dimensionless |
cast | Cast number from event log | dimensionless |
year | Year, from event log | YYYY |
mon | Month, from event log | MM |
day | Day, from event log | DD |
time | Time, local time, from event log | hhmm |
lat | Latitude from event log | decimal degrees |
lon | Longitude from event log | decimal degrees |
pts_per_meter | number of original points per one meter bin | count |
ed_410 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_441 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_488 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_520 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_550 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_560 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_589 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_633 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_656 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_671 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_683 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_694 | downwelling spectral irradiance at depth | uW/cm^2/nm |
ed_710 | downwelling spectral irradiance at depth | uW/cm^2/nm |
depth | bin averaged sample depth | meters |
tilt | instrument tilt (range -45 to 45) | degrees |
roll | instrument roll (range -45 to 45) | degrees |
lu_410 | upwelling spectral radiance at depth | uW/cm^2/nm/str |
lu_441 | upwelling spectral radiance at depth | uW/cm^2/nm/str |
lu_488 | upwelling spectral radiance at depth | uW/cm^2/nm/str |
lu_520 | upwelling spectral radiance at depth | uW/cm^2/nm/str |
lu_550 | upwelling spectral radiance at depth | uW/cm^2/nm/str |
lu_633 | upwelling spectral radiance at depth | uW/cm^2/nm/str |
lu_656 | upwelling spectral radiance at depth | uW/cm^2/nm/str |
lu_683 | upwelling spectral radiance at depth | uW/cm^2/nm/str |
eu_410 | upwelling spectral irradiance at depth | uW/cm^2/nm |
eu_441 | upwelling spectral irradiance at depth | uW/cm^2/nm |
eu_488 | upwelling spectral irradiance at depth | uW/cm^2/nm |
eu_520 | upwelling spectral irradiance at depth | uW/cm^2/nm |
eu_550 | upwelling spectral irradiance at depth | uW/cm^2/nm |
eu_589 | upwelling spectral irradiance at depth | uW/cm^2/nm |
eu_671 | upwelling spectral irradiance at depth | uW/cm^2/nm |
eu_694 | upwelling spectral irradiance at depth | uW/cm^2/nm |
trans | light transmission from 25 cm transmissometer | % transmission |
fluor | stimulated fluoresence | floro units 0 to 100 |
par | Photosynthetically available radiation at depth | quanta/sec/cm^2 |
temp | CTD temperature | degrees C |
cond | CTD conductivity | mmho/cm |
sal | CTD salinity calculated from conductivity | dimensionless |
sigma | calculated density | dimensionless |
e_410 | spectral irradiance above sea surface | uW/cm^2/nm |
e_520 | spectral irradiance above sea surface | uW/cm^2/nm |
e_589 | spectral irradiance above sea surface | uW/cm^2/nm |
e_683 | spectral irradiance above sea surface | uW/cm^2/nm |
cast_type | either up or down profile for given cast | |
E_sfc | spectral irradiance above sea surface at nominal wave length of 456nm | uW/cm^2nm^-1*10^-3 |
Kd_411 | diffuse attenuation coefficient for Ed_411 | m^-1*10^-4 |
Ed_411 | downwelled 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 | downwelled 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 | downwelled 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 | downwelled 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 | downwelled 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 | downwelled 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 | downwelled 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 | downwelled 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 | downwelled 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 | downwelled 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 | downwelled 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 | underwater photosynthetically available radiation | uE/m^2/sec*10^-4 |
Ku_410 | diffuse attenuation coefficient for Eu_410 | m^-1*10^-4 |
Ku_440 | diffuse attenuation coefficient for Eu_440 | m^-1*10^-4 |
Eu_440 | upwelled 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 | upwelled irradiance at wave length of 487 | uW/cm^2nm^-1*10^-4 |
Ku_520 | diffuse attenuation coefficient for Eu_520 | m^-1*10^-4 |
Ku_549 | diffuse attenuation coefficient for Eu_549 | m^-1*10^-4 |
Eu_549 | upwelled 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 | upwelled 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 | upwelled 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 | upwelled 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 | upwelled 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 |
Kl_488 | diffuse attenuation coefficient for Lu_488 | m^-1*10^-4 |
Kl_521 | diffuse attenuation coefficient for Lu_521 | m^-1*10^-4 |
Lu_521 | upwelled 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 |
Kl_589 | diffuse attenuation coefficient for Lu_589 | m^-1*10^-4 |
Lu_589 | upwelled radiance at wave length of 589 | uW/cm^2nm^-1sr^-1*10^-5 |
Kl_710 | diffuse attenuation coefficient for Lu_710 | m^-1*10^-4 |
Lu_710 | upwelled radiance at wave length of 710 | uW/cm^2nm^-1sr^-1*10^-5 |
Kl_685 | diffuse attenuation coefficient for Lu_685 | m^-1*10^-4 |
Lu_685 | upwelled radiance at wave length of 685 | uW/cm^2nm^-1sr^-1*10^-5 |
beam | beam attenuation coefficient | millivolts |
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. |
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 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 | 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 | 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. |
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 1989 November 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 |
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. |
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).
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).
Funding Source | Award |
---|---|
National Science Foundation (NSF) |