USGS Western Coastal and Marine Geology
Pacific Coastal & Marine Science Center

Fate of Dredge Disposal Material and Polluted Sediment, Offshore Honolulu, Hawaii

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Arc/Info Data Layers For Offshore Honolulu, Mamala Bay Area

ARC/INFO VERSION:       7.0.3

GEOGRAPHIC WINDOW:      -158.11340 21.18005 -157.79734 21.33847
                        158 06.8'W  21 10.8'N  157 47.8'W  21 20.3'N
PROJECTION:

        Projection    MERCATOR
        Datum         NAD83
        Zunits        NO
        Units         METERS
        Spheroid      GRS1980
        Xshift        0.0000000000
        Yshift        0.0000000000
        Parameters
        -158  0  0.000 /* longitude of central meridian
        21 17  0.000 /* latitude of true scale
        0.00000 /* false easting (meters)
        0.00000 /* false northing (meters)             

coastline       coastline digitized from NOAA charts
                name of file: COAST
                arc attributes: DEPTH 0 m
                                LTYPE scratch, [blank]
                polygon attributes: PTYPE land, mud, ocean

bathymetric     10-m bathymetry was contoured by Tom Chase from NGDC
 contours       soundings and USGS 1993 and 1994 survey data
                name of file: BATHY10C
                arc attributes: DEPTH 10 to 900 m at 10-m intervals

bathymetric     20-m bathymetry grid was generated from bathymetry
 grid           contours and coastline with elevation of 0 m via
                Arc/Info topogrid function
                name of file: BATHYG
                value: -932.2 to -4.9 m

disposal areas  outlines of designated disposal areas
                name of file: DISPAREA

outfall pipes   sewage outfall pipes digitized from sidescan mosaic image
                name of file: OUTFALLS

1993 tracklines tracklines from USGS cruise K-1-93-HW
                name of file: K193TRKS
                line attributes:
                LINEID
                START   start time in Julian day, hour, minute
                END     end time in Julian day, hour, minute
                EQUIPMENT 

1994 tracklines tracklines from USGS cruise K-1-94-HW
                name of file: K194TRKS
                line attributes:
                LINEID
                START   start time in Julian day, hour, minute
                END     end time in Julian day, hour, minute
                EQUIPMENT 

1994 sample stations from USGS cruice K-2-94-HW
                name of file: K294CORES
                point attributes:
                LONGITUDE 
                LATITUDE
                CORE_ID: 1 through 71
                SEDIMENT        
                   ga  good sediment recovery    dredge material absent
                   gp  good sediment recovery    dredge material present
                   gq  good sediment recovery    dredge material possible
                   la  little sediment recovery  dredge material absent
                   lp  little sediment recovery  dredge material present
                   lq  little sediment recovery  dredge material possible
                   n   no recovery
                   r   rocks only
                LABEL: alternate station numbers for plotting
                SAMPLEID:  redefined item; same as core_id

1995 sample     sample stations from USGS cruise K-2-94-HW
  stations      name of file: K195CORES
                point attributes:
                LONGITUDE
                LATITUDE
                CORE_ID: 72 through 110
                LABEL: alternate station labels for plotting
                SHIP_ID: sample numbers used at time of collection;
                        1 through 39
                DUP: 1 = duplicate of K294 site

sidescan        5.5-m grid of sidescan sonar mosaic image K-1-93-HW
 mosaic grid    name of file: MOSAICG
                values 1 to 255

sidescan        mosaicg converted to BIL format image
 mosaic image

1996 mooring    Mooring deployed June-Dec 1996.  108 m-long
                mooring outfitted with 4 VACM current meters, 
                3 temperature probes, and a sediment trap
                name of file: MOORING96

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ARC-INFO CONTACT
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Florence Wong
Coastal and Marine Geology Team
U.S. Geological Survey, MS 999
345 Middlefield Road, Menlo Park, CA 94025
Phone: (650) 329-5327
Fax:   (650) 329-5190

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For more information, please contact:
Michael E. Torresan

U.S. Geological Survey
345 Middlefield Road MS 999
Menlo Park, CA 94025



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U.S. Department of the Interior | U.S. Geological Survey | Western Coastal & Marine Geology
URL: http://walrus.wr.usgs.gov/mamalabay/arcinforeadme.html
Maintained by Laura Zink Torresan
Last modified 11 October 2005 (lzt)