Layer Name:       Bottom Type

Shapefile Name:   BottomType

Layer Type:       Point

Status:           Complete

Geog. Extent:     Main Hawaiian Islands

Projection:       Universal Trans Mercator, Zone 4 (Meters)

Datum:            NAD 83

Description:      This dataset contains those marine bottom type/seabed
                  classifications within the vicinity of the main Hawaiian 
                  Islands and recorded on the nautical charts.

Source :          NOAA Raster Nautical Charts	

History:         The raster nautical charts were first reprojected from
                 their original projection/datum to UTM Zone 4, Old Hawaiian
                 using NOAA's Nautical Chart Reprojector v1.8.3. NOAA's
                 ArcView ChartViewer extension was used to display the
                 reprojected nautical charts in ArcView v3.2. Objects were
                 then digitized off the individual nautical charts and
                 merged into a single dataset/shapefile which covers the
                 entire state. The dataset was then transformed to UTM Zone
                 4, NAD 83, to adhere to new project requirements, using the
                 Hawaii Datums and Projections extension in ArcView.
                 Completed December, 2002.

		
Attributes: Points:
		
            ID               Point ID
            CODE             Seabed alphabetic code as reported on the nautical charts
            SEABED           Interpretation of alphabetic code
            SOURCETHM        Indicates source chart. Generated by Xtools during "merge
                             themes" process.

NOTE:
  Data not to be used for navigational purposes. Data were not 
  reviewed or authenticated by the Office of Coast Survey, 
  NOAA National Ocean Service. NOAA is not responsible for the
  use of these data as a navigational tool.
		      
		
Contact:    Joan Delos Santos, Office of Planning, State of Hawaii, 
            PO Box 2359, Honolulu, Hi.  96804; (808) 587-2895.
            email:  JDelos_Santos@dbedt.hawaii.gov