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COVERAGE CINS10M -- 10 meter contours of Channel Islands National Marine Santuary

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Frequently-anticipated questions:

What does this data set describe?

    COVERAGE CINS10M -- 10 meter contours of Channel Islands National Marine Santuary
    Boundaries of the Channel Islands National Marine Sanctuary. Compiled by Ben Waltenberger.

    Additional information about the field activities from which this data set was derived are available online at

    Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

    Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology.

  1. How should this data set be cited?

    Cochrane, Guy R. , 2002, COVERAGE CINS10M -- 10 meter contours of Channel Islands National Marine Santuary: USGS Open-File Report USGS OFR 03-85, U.S. Geological Survey, Menlo Park, CA.

    Online Links:

    This is part of the following larger work.

    Cochrane, Guy R. , Nasby, Nicole M. , Reid, Jane A. , Waltenberger, Ben, and Lee, Kristen M. , 2003, Nearshore Benthic Habitat GIS for the Channel Islands National Marine Sanctuary and Southern California State Fisheries Reserves, Volume 1.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -120.99700165
    East_Bounding_Coordinate: -118.7328186
    North_Bounding_Coordinate: 34.74788284
    South_Bounding_Coordinate: 33.73612976

  3. What does it look like?

    <> (JPEG)
    JPEG file of boundary lines

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 2002
    Currentness_Reference: Ground Condition

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: map

  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):

      • String (14742)

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.002. Longitudes are given to the nearest 0.002. Latitude and longitude values are specified in Decimal Degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is GRS1980.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.

  7. How does the data set describe geographic features?

        1  FNODE#                 4     5     B      -
        5  TNODE#                 4     5     B      -
        9  LPOLY#                 4     5     B      -
       13  RPOLY#                 4     5     B      -
       17  LENGTH                 4    12     F      3
       21  CINS10M#               4     5     B      -
       25  CINS10M-ID             4     5     B      -
       29  FNODE_                 8    11     F      0
       37  TNODE_                 8    11     F      0
       45  LPOLY_                 8    11     F      0
       53  RPOLY_                 8    11     F      0
       61  CIBAT10M_              8    11     F      0
       69  CIBAT10M_I             8    11     F      0
       77  CONTOUR                8    11     F      0
    CONTOUR contains the depth in meters as a negative number

    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)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Ben Waltenberger
    Channel Islands National Marine Sanctuary
    Geographic Information Specialist
    Channel Islands Nat. Mar. Sanc.
    113 Harbor Way
    Santa Barbara, CA 93109

    805-966-7107 X461 (voice)
    805-568-1582 (FAX)

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.

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: 2001 (process 1 of 3)
    Original grid file and metadata received by Guy Cochrane from Ben Waltenberg ( Channel Islands NMS.

    Date: 01-Nov-2001 (process 2 of 3)
    Grid modified by Florence Wong Replaced anomalous -8548 depth in window no deeper than 4000 m tempig = int (cibattopo20g) tempi2g = con (tempig lt -4000, tempig) temppoly = gridpoly (tempig) /* .bnd: 705096 3852751 705296 3853051 -8400-m pit near 705204 3852899 in the midst of 80-90 m depths setwindow * cibattopo20g /* specify window around pit /* replace deep values with unique high value patch = con (cibattopo20g gt -90, cibattopo20g,3000) /* cover up bad spot in original grid newg = merge (patch,cibattopo20g)/* convert patch to nodata ci2g = con (newg lt 3000, newg) MIN = -3675.782 MAX = 2681.828 MEAN = -297.854 STDV = 988.696

    Date: 2002 (process 3 of 3)
    Grid contoured in arc/info to 10m intervals. Contours with depth greater than 500m deleted.

  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?


  2. How accurate are the geographic locations?


  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?


  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: None

  1. Who distributes the data set? (Distributor 1 of 1)

    Channel Islands National Marine Sanctuary
    c/o Ben Waltenberger
    Geographic Information Specialist
    Channel Islands Nat. Mar. Sanc.
    113 Harbor Way
    Santa Barbara, CA 93109

    805-966-7107 X461 (voice)
    805-568-1582 (FAX)

  2. What's the catalog number I need to order this data set?

  3. What legal disclaimers am I supposed to read?

    Please recognize the U.S. Geological Survey (USGS) as the source of this information.

    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.

  4. How can I download or order the data?

Who wrote the metadata?

Last modified: 09-Aug-2002
Last Reviewed: 09-Aug-2002

Metadata author:
United States Geological Survey (USGS)
c/o Guy R. Cochrane
USGS, MailStop 999, 345 Middlefield Road
Menlo Park, CA 94025-3561

(650) 329-5076 (voice)
(650) 329-5190 (FAX)

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2") (FGDC-STD-001-1998)

Generated by mp version 2.7.9 on Fri Jan 10 16:18:38 2003
maintained by Carolyn Donlin
last modified 11 March 2003 (grc)
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