MONT95C - Bathymetry contours of the southern Monterey Bay area between Moss Landing and Monterey, California

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Frequently anticipated questions:


What does this data set describe?

Title:
MONT95C - Bathymetry contours of the southern Monterey Bay area between Moss Landing and Monterey, California
Abstract:
The bathymetric grids and derived contours are from data collected by the USGS with a multibeam (Simrad EM1000) sidescan sonar system in the southern Monterey Bay between Moss Landing and Monterey, California in 1995 (P1-95-MB, http://walrus.wr.usgs.gov/infobank). The data are provided as ArcInfo grids with 5-m resolution (MONT95NG, MONT95SG) and contours at 10-m intervals, and as shaded relief images (MNT95NSD.TIF, MNT95SSD.TIF) in the data/shaderel directory of this publication.
This is one of a collection of digital files of a geographic information system of spatially referenced data related to the USGS Coastal and Marine Geology Program "Monterey Bay National Marine Sanctuary Project" http://walrus.wr.usgs.gov/mbms>. The data were collected and analyzed between 1994 and 2000.
Supplemental_Information:
Additional information about USGS field activity P295MB may be found at http://walrus.wr.usgs.gov/infobank/p/p195mb/html/p-1-95-mb.meta.html
  1. How might this data set be cited?
    Wong, Florence L., 2001, MONT95C - Bathymetry contours of the southern Monterey Bay area between Moss Landing and Monterey, California:.

    Online Links:

    This is part of the following larger work.

    Wong, F.L., and Eittreim, S.E., 2001, Continental Shelf GIS for the Monterey Bay National Marine Sanctuary: Open-File Report 01-179, U.S. Geological Survey, Coastal and Marine Geology Program, Western Region Coastal and Marine Geology, Menlo Park, CA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -121.994697
    East_Bounding_Coordinate: -121.820365
    North_Bounding_Coordinate: 36.777579
    South_Bounding_Coordinate: 36.604554
  3. What does it look like?
    http://geopubs.wr.usgs.gov/open-file/of01-179/images/batmont95.gif (GIF)
    location map of MONT95NG, MONT95SG, MONT95C
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 1995
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Complete chain (1555)
      • Point (4)
      It contains the following raster data types:
      • Dimensions 2166 x 2630, type Grid Cell
    2. What coordinate system is used to represent geographic features?
      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 10
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -123.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.000000
      False_Northing: 0.000000
      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000032
      Ordinates (y-coordinates) are specified to the nearest 0.000032
      Planar coordinates are specified in meters
      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.
  7. How does the data set describe geographic features?
    mont95c.aat
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the features.
    FNODE#
    Internal node number for the beginning of an arc (from-node). (Source: ESRI) Whole numbers that are automatically generated.
    TNODE#
    Internal node number for the end of an arc (to-node). (Source: ESRI) Whole numbers that are automatically generated.
    LPOLY#
    Internal node number for the left polygon. (Source: ESRI) Whole numbers that are automatically generated.
    RPOLY#
    Internal node number for the right polygon. (Source: ESRI) Whole numbers that are automatically generated.
    LENGTH
    Length of feature in internal units. (Source: ESRI) Positive real numbers that are automatically generated.
    Range of values
    Minimum:0.3
    Maximum:4565
    Units:meters
    MONT95C#
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    MONT95C-ID
    User-defined feature number. (Source: ESRI)
    CONTOUR
    Depth contour interval in meters. Recorded as negative values. (Source: USGS)
    Range of values
    Minimum:-250
    Maximum:-10
    Units:meters
    Resolution:10
    Entity_and_Attribute_Overview:
    Attributes of bathymetry contour data MONT95C
    
     CONTOUR    -10 to -250 m by 10-m intervals; mean -80 m
     LENGTH     0.3 to 4565 m; mean 249 m
    
    
    Entity_and_Attribute_Detail_Citation: none

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Florence L. Wong
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Florence L. Wong
    United States Geological Survey (USGS)
    Geologist, GIS Coordinator
    Coastal and Marine Geology (CMG)
    Menlo Park, CA
    USA

    (650) 329-5327 (voice)
    (650) 329-5190 (FAX)
    fwong@usgs.gov

Why was the data set created?

These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information about the shallower areas of the Monterey Bay National Marine Sanctuary.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 1998 (process 1 of 2)
    Images processed with MIPS system. Converted to ArcInfo grids from which shaded relief and contours were derived.
    Date: 27-Mar-2001 (process 2 of 2)
    First draft of metadata created by F.L. Wong using a modified version of FGDCMETA.AML on ARC/INFO data set MONT95NG
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    Not available.
  2. How accurate are the geographic locations?
    Not determined
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Complete
  5. How consistent are the relationships among the observations, including topology?
    Chain-node topology present.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
This information is not intended for navigational purposes.
Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
  1. Who distributes the data set? (Distributor 1 of 1)
    United States Geological Survey (USGS)
    Attn: Florence L. Wong
    Geologist, GIS Coordinator
    Coastal and Marine Geology (CMG)
    Menlo Park, CA
    USA

    (650) 329-5327 (voice)
    (650) 329-5190 (FAX)
    fwong@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.
    The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.
    Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 04-Jan-2005
Last Reviewed: May-2001
Metadata author:
United States Geological Survey (USGS)
Attn: Florence L. Wong
Geologist, GIS Coordinator
Coastal and Marine Geology (CMG)
Menlo Park, CA
USA

(650) 329-5327 (voice)
(650) 329-5190 (FAX)
fwong@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/monterey_bay/mont95c.e00.faq.html>
Generated by mp version 2.9.49 on Wed Nov 28 12:14:58 2018