NOAA Office for Coastal Management RoxAnn Acoustic Sensor Benthic Habitat Data, Rehoboth Bay, Delaware, 2000 (NODC Accession 0089461)

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During the spring of 1999, the Delaware Coastal Programs (DCP) identified the spatial extent of macroalgae in the shallow portions of Rehoboth Bay utilizing traditional photogrammetric methods. The DCP used true color aerial photographs, image processing software, a geographical information system (GIS), and a limited field survey to identify 1.88 square kilometers of macroalgae in all but the deepest parts of the bay. Turbid conditions prevented identification of the full extent of the vegetation. Although the 1999 effort was highly successful, it was clear that aerial photography could not penetrate to the deeper parts of the bay or where conditions were turbid.

For the 2000 effort, the DCP partnered with the National Oceanic and Atmospheric Administration (NOAA) Office for Coastal Management (formerly the Coastal Services Center). The Benthic Habitat Mapping project utilized a RoxAnn acoustic sensor to identify benthic cover in turbid areas of the bay June 12-16, 2000. The instrument was used to identify bottom type by extracting data on bottom roughness and bottom hardness from the primary and secondary sounder echoes. The data is classified on-the-fly, using a towed video camera for field validation, and subject to a post-processing classification. The unit collected data throughout the bay in areas greater than 1.4 meters in depth and serves as a powerful complement to the aerial photography. The RoxAnn data points were exported into a geographic information system (GIS) and post-processed to remove unreliable data points and re-classified. This data set is comprised of the cleaned, attributed point data. The attributes include location, date, time, depth, field derived classification, and the classification derived from post-processing the data. This system is fully described in Development of a System for Classification of Habitats in Estuarine and Marine Environments (SCHEME) for Florida, Report to U.S. EPA - Gulf of Mexico Program, Florida Fish and Wildlife Conservation Commission, Florida Marine Research Institute. Review Draft 12/04/02.
  • Cite as: Ball, Anne O'Donnell; US DOC/NOAA/NOS > Coastal Services Center (2012). NOAA Office for Coastal Management RoxAnn Acoustic Sensor Benthic Habitat Data, Rehoboth Bay, Delaware, 2000 (NODC Accession 0089461). Version 1.1. National Oceanographic Data Center, NOAA. Dataset. [access date]
gov.noaa.nodc:0089461
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  • Originator data format
Ordering Instructions Data may be searched and downloaded using online services provided by NCEI using the online resource URLs in this record. Contact NCEI Information Services for custom orders. When requesting data from NCEI, the desired data set may be referred to by the unique package identification number listed in this metadata record.
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 2000-06-12 to 2000-06-16
Spatial Bounding Box Coordinates
N: 38.6938
S: 38.6332
E: -75.0756
W: -75.137
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2012-07-13
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
Supplemental Information
These data were formerly titled at the NCEI as NOAA Coastal Services Center Coastal Remote Sensing Program RoxAnn Acoustic Sensor Benthic Habitat Data, Rehoboth Bay, Delaware, 2000 (NODC Accession 0089461). The dataset title was changed in October 2015 for correctness and currency.

Browse graphics for these data produced by the NODC were designed to provide a rapid overview of the data and facilitate user searches. They do not contain all data attributes of the data sets. GIS software is suggested when viewing or working with these data for maximum usability and performing data analyses.

A land mask is not provided for these data. Suggested shorelines are NOAA's Medium Resolution Shoreline downloadable at //coastalgeospatial.noaa.gov/data_gis.html and the GSHHS - A Global Self-consistent, Hierarchical, High-resolution Shoreline Database downloadable at http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html.
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: Ball, Anne O'Donnell; US DOC/NOAA/NOS > Coastal Services Center (2012). NOAA Office for Coastal Management RoxAnn Acoustic Sensor Benthic Habitat Data, Rehoboth Bay, Delaware, 2000 (NODC Accession 0089461). 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 > BIOLOGICAL CLASSIFICATION
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > ANGIOSPERMS (FLOWERING PLANTS) > MONOCOTS > SEAGRASS
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
  • EARTH SCIENCE > OCEANS > COASTAL PROCESSES > SHORELINES
Originator Theme Keywords
  • Acoustic
  • CSC Benthic Habitat Mapping
  • Delaware Coastal Programs
  • Environmental Monitoring
  • Macroalgae
  • Nuisance algae
  • RoxAnn
  • Sea lettuce
  • Ulva
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
  • DOC/NOAA/NOS/CSC > Coastal Services Center, National Ocean Service, NOAA, U.S. Department of Commerce
NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
Originator Place Keywords
  • Atlantic
  • Delaware
  • Northeast
  • Rehoboth Bay
  • United States
Project keywords NODC PROJECT NAMES THESAURUS
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Ball, Anne O'Donnell; US DOC/NOAA/NOS > Coastal Services Center (2012). NOAA Office for Coastal Management RoxAnn Acoustic Sensor Benthic Habitat Data, Rehoboth Bay, Delaware, 2000 (NODC Accession 0089461). 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.
Fees
  • Digital data may be downloaded from NCEI at no charge in most cases. For custom orders of digital data or to obtain a copy of analog materials, please contact NCEI Information Services for information about current fees.
Lineage information for: dataset
Processing Steps
  • 2012-07-13T17:55:12 - NCEI Accession 0089461 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
  • acoustic sensor
Last Modified: 2018-05-11T18:42:15
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