[Parameters: Topic='PALEOCLIMATE', Term='OCEAN/LAKE RECORDS']
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Bathymetry of Lake Ontario Entry ID: gov.noaa.ngdc.mgg.dem.282 |
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Summary
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Abstract:
This data set contains underway geophysical data collected on a transit cruise between Lyttelton, New Zealand and McMurdo Base, Antarctic during December of 2002. We collected gravity data using a shipboard Lacoste-Romberg gravimeter, magnetic field data, a proton precession magnetometer towed behind the ship, swath bathymetry with a Simrad EM120 multibeam system, centerbeam depth (bathymetry beneath the ship), and single channel seismics. IGRF2000, calculated for the appropriate date and location, was subtracted from the observed magnetic field to yield the total field magnetic anomaly. The major scientific objectives of the cruise were: a) a small survey of the axis of the Pacific-Antarctic ridge along the southwesternmost extension of the ridge, providing constraints on the Euler pole, b) a survey of the magnetic anomalies in southern part of the Adare Basin, just north of the Northern Basin in the Ross Sea, showing the continuity of structures between the Adare Basin and Northern basin, c) single channel seismic reflection lines on the western side of the Adare Basin imaging the structures associated with the opening of this basin, d) and collection of ADCP, temperature and salinity data along the track. Related data sets that cannot currently be archived at the National Data Centers include ODEC Bathy2000 3.5 kHz echo sounder files with up to 100 m subbottom penetration, which are available in SEG-Y format from the chief scientist. There is no currently open national archive for these data. When one becomes available in the future we plan to archive the data there. The Simrad EM120 data will be sent to NGDC and have already been sent to the RIDGE bathymetric data base at Lamont-Doherty Earth Observatory. They are available in hourly files in raw and edited formats suitable for use with the MB-systemsoftware. The Simrad EM120 data and the ODEC Bathy2000 3.5 kHz data were collected continuously throughout the cruise. |
Related URL
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Link:
GET DATA
Description: Download page for accessing contour data Link: GET DATA Description: Download page for accessing gridded data Link: GET DATA Description: Design your own grid Link: VIEW EXTENDED METADATA Description: View Source Metadata document from the Metadata Manager and Repository (NMMR). Link: VIEW RELATED INFORMATION Description: This bathymetry of Lake Ontario provides a detailed look at the lake floor topography and serves as a GIS base layer for many applications. Link: VIEW RELATED INFORMATION Description: Project web page |
Geographic Coverage
| N: 44.25 | S: 43.15 | E: -76.05 | W: -79.9 |
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Data Set Citation
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Dataset Originator/Creator:
National Geophysical Data CenterNOAA Great Lakes Environmental Research LabNOAA National Ocean ServiceCanadian Hydrographic Service
Dataset Title: Bathymetry of Lake Ontario Dataset Release Date: 1999 Dataset Release Place: Boulder, CO Dataset Publisher: National Geophysical Data Center Version: First Online Resource: http://www.ngdc.noaa.gov/mgg/greatlakes/ontario.html |
Temporal Coverage
| Start Date: 1999-01-01 |
Location Keywords
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CONTINENT
> NORTH AMERICA
> UNITED STATES OF AMERICA
> GREAT LAKES
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Data Resolution
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Latitude Resolution:
0.000833 Decimal degrees Longitude Resolution: 0.000833 Decimal degrees |
Science Keywords
| TERRESTRIAL HYDROSPHERE >SURFACE WATER >LAKES [Definition] |
| TERRESTRIAL HYDROSPHERE >SURFACE WATER >WATER CHANNELS [Definition] |
| TERRESTRIAL HYDROSPHERE >SURFACE WATER >WATER DEPTH [Definition] |
| OCEANS >BATHYMETRY/SEAFLOOR TOPOGRAPHY >SEAFLOOR TOPOGRAPHY [Definition] |
| OCEANS >BATHYMETRY/SEAFLOOR TOPOGRAPHY >WATER DEPTH [Definition] |
| PALEOCLIMATE >OCEAN/LAKE RECORDS >SEDIMENTS [Definition] |
| PALEOCLIMATE >OCEAN/LAKE RECORDS >STRATIGRAPHIC SEQUENCE [Definition] |
ISO Topic Category
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GEOSCIENTIFIC INFORMATION
INLAND WATERS |
Project
| ESIP >Earth Science Information Partners Program [Information] |
Access Constraints
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ACCESS CONSTRAINTS: No Constraints DISTRIBUTION LIABILITY: Disclaimer: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Data should not be used for navigation. DISTRIBUTION LIABILITY: Disclaimer: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Data should not be used for navigation. CUSTOM ORDER PROCESS: Contact data center for information |
Use Constraints
| Not for navigational purposes |
Keywords
| DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce |
| WDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, Boulder |
| Geomorphology |
| Great Lakes |
| Lacustrine |
| Multibeam |
| Topography |
Data Set Progress
| COMPLETE |
Data Center
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National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
[Information]
Data Center URL: http://www.ngdc.noaa.gov/ Dataset ID: _Great_Lakes_Bathymetry,_Lake_Ontario__Great_Lakes_Bathymetry,_Lake_Ontario_
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Distribution
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Distribution_Format:
ARC/INFO interchange format
Fees: Please See Summary |
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Distribution_Format:
GRD98 binary raster format
Fees: Please See Summary |
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Distribution_Format:
JPEG
Fees: Please See Summary |
Personnel
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KELLY
CARIGNAN Role: TECHNICAL CONTACT Role: DIF AUTHOR Phone: (303) 497-6373 Fax: (303) 497-6513 Email: Kelly.Carignan at noaa.gov Contact Address: 325 Broadway, E/GC3 City: Boulder Province or State: CO Postal Code: 80305-3328 Country: USA |
Creation and Review Dates
DIF Creation Date:
2005-07-01
Last DIF Revision Date:
2010-07-07
Future DIF Review Date:
2006-06-30
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