Total column ozone (O3) measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014.

Website: https://www.bco-dmo.org/dataset/732116
Data Type: Cruise Results
Version: 1
Version Date: 2018-03-27

Project
» Collaborative Research: Impacts of atmospheric nitrogen deposition on the biogeochemistry of oligotrophic coastal waters (DANCE)
ContributorsAffiliationRole
Najjar, RaymondPennsylvania State University (PSU)Principal Investigator
Martins, Douglas K.Pennsylvania State University (PSU)Scientist
Switzer, MeganWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager

Abstract
Total column ozone (O3) measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014.


Coverage

Spatial Extent: N:38.89 E:-71.09 S:31.6 W:-75.16
Temporal Extent: 2014-07-29 - 2014-08-14

Dataset Description

Total column ozone measured measured during DANCE cruise HRS1414 aboard the R/V Hugh R. Sharp from July to August 2014 on the offshore Mid-Atlantic Bight and northern South-Atlantic Bight between latitudes 31.60°N and 38.89°N and longitudes 71.09°W and 75.16°W. Sampling procedures and methods are found in Martins et al. 2016. 


Data Processing Description

BCO-DMO processing notes:
-changes parameter names to BCO-DMO naming conventions
-organized under top-level file by station number


[ table of contents | back to top ]

Data Files

File
PANDORA_O3.csv
(Comma Separated Values (.csv), 698.29 KB)
MD5:af754655fe786c0ccf4bc472003cb203
Primary data file for dataset ID 732116

[ table of contents | back to top ]

Related Publications

Martins, D. K., Najjar, R. G., Tzortziou, M., Abuhassan, N., Thompson, A. M., & Kollonige, D. E. (2016). Spatial and temporal variability of ground and satellite column measurements of NO2and O3over the Atlantic Ocean during the Deposition of Atmospheric Nitrogen to Coastal Ecosystems Experiment. Journal of Geophysical Research: Atmospheres, 121(23), 14,175–14,187. doi:10.1002/2016jd024998 https://doi.org/10.1002/2016JD024998
Methods

[ table of contents | back to top ]

Parameters

ParameterDescriptionUnits
Station_ID

Station ID

no units
Date_Time

UT date and time for center of measurement (yyyymmddThhmmssZ)

no units
Samp_time

Total duration of measurement in seconds

seconds
Zenith

Solar zenith angle at the center-time of the measurement in degrees

degrees
Azimuth

Solar azimuth at the center-time of the measurement in degrees; 0=north; increases clockwise

degrees
rms_unweighted

rms of unweighted spectral fitting residuals

no units
rms_weighted

Normalized rms of weighted spectral fitting residuals

no units
O3_vert

Ozone vertical column amount

Dobson units
O3_uncert

Uncertainty of nitrogen dioxide vertical column amount

Dobson units
O3_dir_sun

Direct sun nitrogen dioxide air mass factor

no units
err_index

Sum over 2^i with i being a level 2 error index

no units
Temp

Effective temperature; 999=no effective temperature given

degrees Celsius
Res_stray_light

Estimated average residual stray light level

percent
Wavelength_shift

Retrieved wavelength shift

nanometers (nm)
Filterwheel_pos

Position of filterwheel #2; 0=filterwheel not used; 1-9 are valid positions

no units
Result_index

Fitting result index; 1 and 2=no error; >2=error

no units
O3_temp

Ozone effective temperature

degrees Kelvin (K)
O3_temp_uncert

Uncertainty of nitrogen dioxide effective temperature

degrees Kelvin (K)
lat

Latitude, negative is south

decimal degrees
lon

Longitude, negative is west

decimal degrees


[ table of contents | back to top ]

Instruments

Dataset-specific Instrument Name
Eppley PIR
Generic Instrument Name
Eppley Longwave Radiometer
Generic Instrument Description
The Eppley Precision Infrared Radiometer (PIR) pyrgeometer measures longwave (infrared) radiation. It is housed in a weatherproof titanium canister that has been painted with a very flat black paint that absorbs radiation. A small glass dome at the top of the instrument is covered with an 'interference coating' which allows only infrared radiation to come through. Light levels are detected as temperature changes creating voltages in fine wire coil detectors. more from Eppley Labs

Dataset-specific Instrument Name
R.M. Young 50202
Generic Instrument Name
Precipitation Gauge
Generic Instrument Description
measures rain or snow precipitation

Dataset-specific Instrument Name
Eppley PSP
Generic Instrument Name
Precision Spectral Pyranometer
Generic Instrument Description
This radiometer measures sun and sky irradiance in the range of wavelengths 0.285 to 2.8 microns, including most of the solar spectrum. The PSP is intended to weight the energy flux in all wavelengths equally. It is a "hemispheric receiver" intended to approximate the cosine response for oblique rays. The Eppley Precision Spectral Pyranometer (PSP) is primarily used where high accuracy is required or where it is used to calibrate other pyranometers. The PSP outputs a low level voltage ranging from 0 to a maximum of about 12mV depending on sensor calibration and radiation level. An instruction manual provided by Eppley contains the sensor calibration constant and serial number. The Precision Spectral Pyranometer is a World Meteorological Organization First Class Radiometer and comes with a calibration certificate traceable to the World Radiation Reference and a temperature compensation curve. More information is available from Eppley Labs.

Dataset-specific Instrument Name
Metcon 2-pi radiometer
Generic Instrument Name
Radiometer
Generic Instrument Description
Radiometer is a generic term for a range of instruments used to measure electromagnetic radiation (radiance and irradiance) in the atmosphere or the water column. For example, this instrument category includes free-fall spectral radiometer (SPMR/SMSR System, Satlantic, Inc), profiling or deck cosine PAR units (PUV-500 and 510, Biospherical Instruments, Inc). This is a generic term used when specific type, make and model were not specified.

Dataset-specific Instrument Name
Aerodyne CAPS; Thermo 49C; Thermo 48; Thermo 42C
Generic Instrument Name
Spectrophotometer
Generic Instrument Description
An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples.


[ table of contents | back to top ]

Deployments

HRS1414

Website
Platform
R/V Hugh R. Sharp
Start Date
2014-07-29
End Date
2014-08-16


[ table of contents | back to top ]

Project Information

Collaborative Research: Impacts of atmospheric nitrogen deposition on the biogeochemistry of oligotrophic coastal waters (DANCE)

Coverage: Offshore Mid-Atlantic Bight and northern South-Atlantic Bight between latitudes 31.60°N and 38.89°N, and longitudes 71.09°W and 75.16°W


NSF abstract:

Deposition of atmospheric nitrogen provides reactive nitrogen species that influence primary production in nitrogen-limited regions. Although it is generally assumed that these species in precipitation contributes substantially to anthropogenic nitrogen loadings in many coastal marine systems, its biological impact remains poorly understood. Scientists from Pennsylvania State University, William & Mary College, and Old Dominion University will carry out a process-oriented field and modeling effort to test the hypothesis that deposits of wet atmospheric nitrogen (i.e., precipitation) stimulate primary productivity and accumulation of algal biomass in coastal waters following summer storms and this effect exceeds the associated biogeochemical responses to wind-induced mixing and increased stratification caused by surface freshening in oligotrophic coastal waters of the eastern United States. To attain their goal, the researchers would perform a Lagrangian field experiment during the summer months in coastal waters located between Delaware Bay and the coastal Carolinas to determine the response of surface-layer biogeochemistry and biology to precipitation events, which will be identified and intercepted using radar and satellite data. As regards the modeling effort, a 1-D upper ocean mixing model and a 1-D biogeochemical upper-ocean will be calibrated by assimilating the field data obtained a part of the study using the adjoint method. The hypothesis will be tested using sensitivity studies with the calibrated model combined with in-situ data and results from the incubation experiments. Lastly, to provide regional and historical context for the field measurements and the associated 1-D modeling, linked regional atmospheric-oceanic biogeochemical modeling will be conducted.

Broader Impacts. Results from the study would be incorporated into class lectures for graduate courses on marine policy and marine biogeochemistry. One graduate student from Pennsylvania State University, one graduate student from the College of William and Mary, and one graduate and one undergraduate student from Old Dominion University would be supported and trained as part of this project.



[ table of contents | back to top ]

Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)

[ table of contents | back to top ]