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Shoreline Imagery for the Hawaiian Islands - Readme

NOAA/NOS aerial photography - from Pacific Disaster Center

These NOAA/NOS aerial photos were collected from Asia Pacific Natural Hazards Information Network website (http://www.pdc.org/geodata/) . The True color diapositive photographs were obtained by the NOAA/NOS Benthic Habitat Mapping Program during March through July 2000 at the 1:24,000 scale for the majority of the shoreline of the main Hawaiian islands. These diapositive photographs were scanned and copied to DVD media at the PDC. The PDC also obtained additional flight lines of the same collection in September 2002. The PDC provided NOAA/NOS with copies of the scans and retained the prints. These photos can be queried, viewed, and downloaded on the Internet through a searchable archive created by NOS's Biogeography Program called Image Finder. See http://ccma.nos.noaa.gov/about/biogeography// for more information.

The imagery was originally obtained as zipped ECW (Enhanced Compressed Wavelet). These images are supported by ER viewer. A free copy of ER viewer can be obtained from ER Mapper website. These images were processed and geo-referenced to UTM 4N / NAD83 using ground control points derived from USGS 1m IDP DOQQ's. This site provides the friendly graphical web user interface for the public to browse and download island imagery. Coastal Geology Group generated hi-resolution JPEG images to meet an array of public needs. TIFF format images for some islands are available for download as zipped (.zip) packages containing the TIFF image and an accompanying world file (.tfw) of the same name containing georeferencing information. These files are intended for use by professionals familiar with GeoTIFFs.

USGS DRGs

A digital raster graphic (DRG) is a scanned image of a U.S. Geological Survey (USGS) standard series topographic map, including all map color information. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator projection. The horizontal positional accuracy and datum of the DRG matches the accuracy and datum of the source map. The map is scanned at a minimum resolution of 250 dots per inch.

For more information please go to the following web site:http://hawaii.wr.usgs.gov/

Historical Shoreline Mosaics

These historical shoreline mosaics were developed by Coastal Geology Group at the University of Hawaii, under contract from Maui County.

GeoTIFF - These are full resolution TIFF images with an associated world file (.tfw) holding georeferencing information. These are intended for use in a GIS. Files size are reduced using JPEG 'quality 4' compression scheme format in Photoshop for download purposes. These files are available for download as zipped (.zip) packages.

Hi resolution JPEG images are images with quality being reduced in Photoshop. The file sizes range between 1 to 3 MB. These images are available for download as .jpg format.

GIS Layers are vector files in Arcview shape file (.shp) format. Vector files include projected shore normal transects, low water marks for each year of aerial photo and T-sheet coverage and vegetation lines for each year of aerial photo. These files are available for download as zipped (.zip) packages.

For more information please go to the following website: http://www.co.maui.hi.us/departments/Planning/erosion.htm

Historical T-Sheet

These T-Sheet was collected from the NOAA National Ocean Service (NOS). The imagery was originally obtained as GeoJPEGs.

GeoJPEG - These are JPEG images with an associated world file (.jgw) holding georeferencing information. These are intended for use in a GIS. These files are zipped for download purposes.
JPEG images are files between 1 to 5 MB. The quality of these images have been reduced in Photoshop to "high 80" to meet an array of public needs and bandwidth demands.

For more information please go to the following website: http://oceanservice.noaa.gov/dataexplorer/datasites/welcome.html#charting

Ocean Recreation Management Boundary (ORMB)

These are NOAA Shoreline Imagery with 3000ft boundary line from the coast.

GeoTIFF - These are TIFF images with an associated world file (.tfw) holding georeferencing information. These are intended for use in a GIS. These files are zipped for download purposes.

JPEG images are files below 1 MB. The quality of these images has been reduced in Photoshop to quality "8" to meet an array of public needs and bandwidth demands.

GIS Layers - These are GIS layers for 3000ft line and conordinates generated by ArcView. These files are zipped for download purposes.

Ocean Safety - Sponsored by Hawaiiam Lifeguard Association

Maps and data accessible through the Beach Data link are the products of a combined effort from the Coastal Geology Group, the Hawaiian Lifeguard Association, and Professor Andrew D. Short, University of Sydney, AU. While closely related in their content and goals, maps and data are separated into two unique components: 1) Beach Hazard Analysis, and 2) Beach Park (only) Analysis.

1) Beach Hazard Analysis: As an online user you can access aerial photomaps covering 181 beaches on Oahu. These depict the locations of major rip currents, surf breaks, and other natural and cultural features that are relevant to water safety. Text descriptions of these features include hazard ratings based on the Australian system developed by Dr. Short. Beach hazards are determined by wave height and shoreline type. Two types of hazards are presented: 1) an inner hazard applicable to the shoreline and inshore waters to a distance of approximately 100 feet offshore, and 2) an outer hazard applying to coastal waters beyond 100 feet distance. For a detailed description of Dr. Shorts methodology and Island hazard overviews click here.

2) Beach Park (Only) Analysis: Working with the Hawaiian Lifeguard Association, 74 City & County Beach Park maps have been produced. These maps use aerial photography as a base, and depict park boundaries, and other coastal features. They are available for downloading and printing in high-resolution .pdf format. The Coastal Geology Group does not accept responsibility for visual misalignments between aerial photo and beach park boundaries as neither data source was produced 'in house'. As an online user you can view/download each park map which includes text descriptions and hazard ratings for either the beach park itself (if available) or beaches contained within the beach park boundary. Adjacent shoreline features are also included to better illustrate the overall physical context associated with each area.

For more information please go to the following website: http://www.co.honolulu.hi.us/esd/oceansafety/

Hawaii Data Clearinghouse

Introduction
Welcome. The Hawaii Data Clearinghouse is a gateway for information and data pertaining to the Hawaiian Islands. The U.S. Geological Survey is developing this website to serve as a foundation for integrating, sharing, and using other government and private-sector data easily and consistently. Users can request selected layers of information or data from a geographic information system (GIS) database, display the data, and perform simple GIS functions on the selected data layers. The interactive map viewers require Java Script. For best results, please use the Internet Explorer browser, version 5.5 or higher.

Map Area: The central area of the page is where the GIS layers will be displayed whenever one of the tools is used or when the "Refresh" button is clicked. The map scale bar will automatically adjust itself in response to changes in the map-display area.

Data Layers: The right-hand side of the page contains a list of the available GIS layers. The National Map will include eight primary data layers or themes: digital orthorectified imagery, elevation, hydrography (water), transportation, boundaries, cultural features, geographic names, and land cover.

For more information please go to the following website: http://hawaii.wr.usgs.gov/

NOAA Landsat

These landsat was collected from the NOAA Coastal Services Center. The imagery was originally obtained as IMGs.
Imagery Projection information:
UTM Zone 4 meters
GRS80 NAD83 30 meter resolution
GeoTIFF - These are TIFF images with an associated world file (.tfw) holding georeferencing information. These are intended for use in a GIS. These files are zipped for download purposes.
IMG - These are raster files created by ERDAS IMAGINE. These files use the ERDAS IMAGINE Hierarchal File Format (HFA) structure. File sizes are between 1 to 20 MB.
JPEG images are files between 1 to 2 MB. The quality of these images has been reduced in Photoshop to quality "8" to meet an array of public needs and bandwidth demands.
For more information please go to the following website: http://www.csc.noaa.gov/crs and http://landsat.usgs.gov/resource.html

SHOALS LIDAR Bathymetry

These bathymetry data were collected from the SHOALS website. The data was originally obtained as XYZ ascii file with space delimited.
JPEG images are files between 1 to 2 MB. The quality of these images has been reduced in Photoshop to quality "medium 5" to meet an array of public needs and bandwidth demands.
GeoTIFF - These are TIFF images with an associated world file (.tfw) holding georeferencing information. These are intended for use in a GIS. These files are zipped for download purposes.
XYZ - These are ascii files with comma delimited. The file sizes are between 1 to 2 MB. These files are zipped for download purposes.
Shape file - These are shape layers generated by ARCmap. These files are between 2 to 5 MB. These files are zipped for download purposes.
For more information please go to the following website: http://shoals.sam.usace.army.mil/hawaii/pages/Hawaii_Data.htm

Oblique Photography and Ground Photography

The aerial photos were taken on November 10, 2003 from a Cessna plane flying at about 2000 ft, with the window open. The ground photos on KMCB were taken on November 19, 2004. All photographs were taken with a Nikon Coolpix 5700 digital camera - with settings and focus all automated. Most of the images are between 300-400 Kb in size. If you download the images it will provide information on their size. If you require any additional information please contact Professor Andrew D Short