CTD data from Rhode Island Sound collected from R/V Hope Hudner in 2009-2010 in support of Rhode Island Ocean Special Area Management Plan (NODC Accession 0109929)

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The dataset consists of 173 CTD casts in Rhode Island and Block Island Sounds obtained during 4 surveys. The surveys were performed during 22-24 September 2009, 7-8 December 2009, 9-11 March 2010, and 16-18 June 2010. The casts cover the nearly the entire watercolumn from the surface to approximately 2 m above the bottom. The data were obtained with a SeaBird SBE19plus, which measures temperature, conductivity, pressure, optical backscatter, chlorophyll fluorescence, oxygen, and photosynthetically active radiation (PAR). All sensors were sampled at 4 Hz. The data were processed using the SeaBird data processing software suite, SBEDataProcessing-Win32. A low pass filter, with time constant of 1 s, was applied to the pressure record. Temperature and conductivity were low pass filtered with a 0.5 s filter time constant. To account for the relatively slower response of the temperature sensor, the temperature was advanced in time by 0.5 seconds relative to pressure. The oxygen voltage was advanced relative to pressure by 2 seconds for the September, December, and June survey casts and 5 seconds for the March survey casts. A correction for conductivity cell thermal mass effects was applied to the conductivity signal using the parameters recommended by SeaBird (alpha=0.04, 1/beta=8.0). A loop edit step was then applied, whereby portions of the cast in which the pressure was not changing sufficiently fast (0.1 dbar/s) were removed. This was followed by computation of salinity, sigma-t, and oxygen concentration. Finally, the data from the downcast were averaged into 1 dbar bins. Further details of the CTD data processing can be found in the header portion of the individual cast files. The final data files contain raw sensor values (1 dbar bin averages) plus a number of derived variables (e.g. salinity, sigma-t, oxygen). A full list of the output variables is contained in the header portion of the cast files.
  • Cite as: Ullman, David; University of Rhode Island > Graduate School of Oceanography (2013). CTD data from Rhode Island Sound collected from R/V Hope Hudner in 2009-2010 in support of Rhode Island Ocean Special Area Management Plan (NODC Accession 0109929). Version 1.1. National Oceanographic Data Center, NOAA. Dataset. [access date]
gov.noaa.nodc:0109929
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Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact Information Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period 2009-09-22 to 2010-06-18
Spatial Bounding Box Coordinates
N: 41.426
S: 40.962
E: -70.881
W: -71.808
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2013-07-11
Edition 1.1
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency As needed
Purpose Basic research
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Ullman, David; University of Rhode Island > Graduate School of Oceanography (2013). CTD data from Rhode Island Sound collected from R/V Hope Hudner in 2009-2010 in support of Rhode Island Ocean Special Area Management Plan (NODC Accession 0109929). Version 1.1. National Oceanographic Data Center, NOAA. Dataset. [access date]
Cited Authors
Contributors
Resource Providers
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science and Services Keywords
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN
  • EARTH SCIENCE > OCEANS > OCEAN OPTICS
  • EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION
  • EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE
  • EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
  • EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords
  • SHIPS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
  • CTD > Conductivity, Temperature, Depth
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Ullman, David; University of Rhode Island > Graduate School of Oceanography (2013). CTD data from Rhode Island Sound collected from R/V Hope Hudner in 2009-2010 in support of Rhode Island Ocean Special Area Management Plan (NODC Accession 0109929). Version 1.1. National Oceanographic Data Center, NOAA. Dataset. [access date]
Access Constraints
  • NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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Lineage information for: dataset
Processing Steps
  • 2013-07-11T21:01:20 - NCEI Accession 0109929 v1.1 was published.
Output Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Instrument
  • CTD
Platform
  • Hope F. Hudner
Last Modified: 2015-07-14T16:56:02
For questions about the information on this page, please email: NODC.DataOfficer@noaa.gov