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PLEASE read these instructions before proceeding to the interactive GIS pages |
These interactive GIS pages utilize JShape Java applets. A more recent web browser (i.e. Internet Explorer v. 4.0, Netscape v. 4.05 or higher) Java enabled is necessary to view these interactive figures. These GIS pages work in a similar manner to an ArcView project. Various themes can be toggled on and off, queried, and the map can be panned and zoomed. Before going to any of the interactive GIS pages, the user should read the JShape Tutorial. For convenience, this documentation is stored on this CD-ROM, but this document as well as more information on JShape can be found at the JShape website: www.jshape.com. Keep in mind that as a freely available software package, this website is subject to change. If this link is broken, using your favorite internet search engine should assist in finding the new website.
The interactive GIS pages have been tested on Win95, WinNT, Linux, DEC Digital Unix, and Silicon Graphics systems. On the Win systems, both Internet Explorer (ver.4 and higher) as well as Netscape (version 4.5 and higher) were tested. Netscape was the browser used on the UNIX operating systems - versions 4.5 or higher. Loading and operating speeds depend on a variety of factors including CPU speed, memory, and CD-ROM read speed. Due to compatibility issues with Macintosh computers, a separate set of interactive GIS pages (fewer bells and whistles) have been included that are Macintosh compatible.
GENERAL USE NOTES
Any JShape GIS incorporating sidescan-sonar imagery has these images in a dynamic loading format as described in the Dynamic Layers section of the JShape Tutorial. Because the study area encompasses such a large extent, the sidescan-sonar imagery is divided into a series of tiles or blocks. The grid layer for each year of imagery defines these blocks for that yearn of sidescan-sonar data collection. The dynamic layer load button allows users to dynamically load the imagery based on the current zoom-in area. The proper steps to use the dynamic layer load button are:
WARNINGS:
Pressing the dynamic layer load button to dynamically load a large area (or full extent) of data/map may take a very long time.
The identify tool does not work properly when zoomed in too much. If the identify button does not work, try zooming out some and then trying again.
A value of 9999 indicates 'no data'.
Interactive pages - Windows and Unix Compatible
Interpretation and Sediment Samples
All sediment samples and interpretation - looking at %mud across the shelf
Sidescan-Sonar Imagery and Sediment Samples
Sidescan-sonar Imagery and Interpretation
All Data - the slowest to load.
Interactive pages - Mac Compatible
Due to the limitations and compatibility with Java, JShape, and Macintosh computers, these interactive figures have been modified to run on Macintosh systems. The sediment sample data are not hot linked to pictures of the sediment samples as in the UNIX and Windows version. However, these pictures are available on the CD-ROM and can be accessed separately (see the data page). Also, this version of JShape is incompatible with having two dynamic maps in one project. Since the interpretation was primarily guided by the sidescan sonar imagery collected in 1997, these are the images that appear in these interactive maps. All the imagery is available on the CD-ROM and can be accessed individually.
Interpretation and Sediment Samples
All sediment samples and interpretation - looking at %mud across the shelf
Sidescan-sonar Imagery and Sediment Samples
Sidescan-sonar Imagery and Interpretation
All Data - the slowest to load.
