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Table of Contents:

OF 2004-1014

Disc Contents

Geologic
    Discussion

Data/GIS

Metadata/Data
   Catalog

• basemap

• navigation

• ground-truthing

• interpretation

• seismic-reflection data

• sidescan-sonar mosaics

  • geographic

  • state plane

References Cited

Contacts

METADATA AND DATA CATALOG

Federal Geographic Data Committee (FGDC) compliant metadata is available for all the data contained on this DVD. The text, HTML, and FAQ versions of the metadata reside in the metadata directory, under a subdirectory appropriate for the data type. The links to these files are provided below. Each dataset has metadata available in several formats. The information contained within each file is the same, just presented differently to help make the information more user friendly. ArcGIS 8.2 compatible XML metadata is stored in the directory with the actual data files.

Shapefiles generally include *.shp, *.shx, and *.dbf files at a minimum. For the sake of brevity, only the filename prefix has been included in the filename designation listed below; extensions have been excluded. All the files necessary to load a shapefile have been compressed into a single WinZip file. Therefore, these shapefiles can be downloaded directly from the DVD, or by clicking on the filename in the data catalog and saving the "zipped" files to a preferred location and uncompressing them. Image and text files can be transferred in the same manner.

Sidescan-sonar mosaic images are available in both the TIFF and MrSid image format. The accompanying world file for each image is necessary to display the image in its appropriate geographic location within a GIS and therefore needs to be downloaded as well. It is recommended that when downloading from the data catalog below, the MrSid image be selected since it is a considerably smaller file.

Clicking on the camera icon will give a preview of the dataset. In most cases this image contains other information to help orient the viewer. For instance, the shoreline graphic also contains the state boundaries for reference. Not every file has a graphic. If two files differ only in format or projection, only one of the files will have a representative image.

For guidance in where to obtain software capable of reading shapefiles, seismic SEG-Y files, and uncompressing zipped files, see the system requirements page.

basemap (data/basemap)

Filename	Description	Metadata
jda_dam.*	polyline shapefile of the John Day Dam	HTML FAQ TEXT
jdashore.*	polyline shapefile of the John Day Reservoir shoreline	HTML FAQ TEXT
mcn_dam.*	polyline shapefile of the McNary Dam	HTML FAQ TEXT
photo66_4m.sid photo66_4m.sdw	4m/pixel photo mosaic of the study area; preimpoundment	HTML FAQ TEXT

navigation (data/nav)

Filename	Description	Metadata
jd00_100shot.*	point shapefile of chirp data - point every 100 shots	HTML FAQ TEXT
jd00_500sht.*	point shapefile of chirp data - point every 500 shots	HTML FAQ TEXT
allgps.zip	WINZIP file containing all the reformatted raw navigation in individual ASCII text files by Julian Day	HTML FAQ TEXT
tracklines.*	polyline shapefile indicating the tracklines along which seismic-reflection and sidescan-sonar imagery was collected	HTML FAQ TEXT

ground-truthing
bottom samples/image locations (data/samples)
bottom imagery (data/samples/img2000 and data/samples/img2002)

Filename	Description	Metadata
jd2000.*	point shapefile indicating the locations of bottom photographs, close proximity to sediment sample locations	HTML FAQ TEXT
jd2000_vidtracks.*	polyline shapefile indicating the location of bottom video acquisition	HTML FAQ TEXT
jd2002_anal.*	point shapefile indicating sediment sample locations, close proximity to bottom photographs	HTML FAQ TEXT
img2000.zip	WINZIP file containing the JPEG bottom images collected in 2000	HTML FAQ TEXT
img2002.zip	WINZIP file containing the JPEG bottom images collected in 2002	HTML FAQ TEXT

interpretation (data/interpretation)

Filename	Description	Metadata
road.*	polyline shapefile indicating the location of roads and causeways as interpreted from the sidescan-sonar mosaic	HTML FAQ TEXT
ss_interpretation.*	polygon shapefile of the geologic interpretation of the sidescan-sonar mosaic	HTML FAQ TEXT

Seismic-Reflection SEG-Y files (data/segy)

seismic JPEG images (data/seisimages)

Sidescan-Sonar Mosaics
Geographic Coordinate System
(data/sidescan/geographic)

Filename	Description	Metadata
jde_geog.tif jde_geog.tfw	enhanced TIFF image from the eastern portion of the John Day Reservoir	HTML FAQ TEXT
jdw_geog.tif jdw_geog.tfw	enhanced TIFF image from the western portion of the John Day Reservoir	HTML FAQ TEXT
jdsonar.sid jdsonar.sdw	enhanced MrSid image covering the entire John Day Reservoir	HTML FAQ TEXT

Sidescan-Sonar Mosaics
Washington StatePlane South, NAD83
(data/sidescan/stateplane)