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Photographs of the Sea Floor Offshore of New York and New Jersey, Open-File Report 01-470

Title Page / Contents / Using / Figures / Introduction / Photos / Movies / Viewing / Acknowledgments / References
Appendices:    Bottom Photo    /    Sea Floor Movies    /   Sediment Texture    /   ArcView    /    Metadata


To open the text portion of this DVD-ROM click on the "index.htm" file on the DVD-ROM using your browser.  The figures that accompany this DVD-ROM are in the .jpg or .pdf format.  To view .pdf files, a free copy of Adobe Acrobat Reader is available at  This DVD-ROM also includes digital movies in QuickTime format.  A free copy of QuickTime is available at

The bottom photographs and digitized video clips on this DVD-ROM may be viewed and accessed via a table, using ArcView GIS, or as individual image files. See the text (go to the DVD-ROM, open index.htm) for a description how the photographs and video clips were obtained.

I. Using the Tables.

Appendix I (located in the table of contents) provides a list of cruises that are included in this data report. Each cruise is linked to a table that contains a list of sampling stations. Click on the station number in the table to view a station page which contains thumbnails of the bottom photographs and the sediment grain size analysis results. To view a larger image of a picture, click on the thumbnail.

Figures 1a-e show the station locations.  Figure 1a shows all the stations included on this DVD-ROM.  Figures 1b-e show the station locations for each cruise.

The video clips (see Appendix II) are organized in tabular format according to file name.  These short movies show video clips of the sea floor near USGS sampling stations on cruises conducted in 1999 on the R/V Oceanus and in 2000 on the R/V Endeavor.

II. Using ArcView

The locations of the photographs and movies may be viewed over images of backscatter intensity based on multibeam (Hudson Shelf Valley) or sidescan sonar (New York Bight) using ArcView. Using ArcView allows the user to view the location of the images in relation to each other, and sea-floor properties.  The ArcView project file "nyofr01_470.apr" is located in the nybgis directory, found in the top-level directory of this DVD-ROM.  The images can be viewed from within the ArcView project using a link. To use this link, highlight the theme that is annotated with "Links to all pictures", select the lightening bolt tool, and click on the appropriate station marker to bring up a station page with thumbnails of the photos at that station (double click on an image to view a larger version). Movie clips can also be accessed through the ArcView project file using a hot-linked theme (highlight the theme labeled "Video-clip locations" and follow the same directions as for the station photos).

The NOAA Coastal Relief Model bathymetry theme (remosaic) requires the use of the ArcView Spatial Analyst extension. The sidescan sonar theme (Apex_li.sid) has been compressed with LizardTech MrSID Geospatial Encoder 1.3.1 image compression utility. The MrSID Image support extension must be loaded to view those files.

To set the hotlink mechanism between ArcView and the web-browser, the following modifications are necessary:

A. Define the global variable "NYIMAGE"

1. For Windows 3.x or Windows 95/98 users:

Edit the autoexec.bat file located on drive C: (usually c:\autoexec.bat) and add the following line:

SET NYIMAGE = (Use the drive letter assigned to your DVD-ROM drive):\nybgis

Example: if the  DVD-ROM is the E drive, "SET NYIMAGE = E:\nybgis\nyimage"

Once the DVD-ROM path variable has been added to your autoexec.bat file, reboot the system.

2.  For Windows NT users:

Go to Settings, Control Panel, System, and click on the Environment tab. In the Variable box, enter NYIMAGE. In the Value box enter (DVD-ROM drive letter):\nybgis.  For example, for a system with the DVD-ROM drive assigned the letter E, set the Value to E:\nybgis\nyimage.  If the DVD-ROM is downloaded to a hard drive, set Variable to NYIMAGE and Value to the location of the mbaygis folder C:\nybgis\nyimage).

3.  For Windows 2000 users:

Go to Settings, Control Panel, System, Advanced tab, Environment Variables and select new.  In the Variable Name box enter NYIMAGE.  In the Variable Value box enter (DVD-ROM drive letter):\nybgis (for example, if your DVD-ROM drive is assigned the letter E, set the Variable Value to E:\nybgis\nyimage.  If the DVD-ROM is downloaded to a hard drive, set the Variable Value to the location of the nybgis folder (i.e.C:\nybgis\nyimage).

B. Check the location of your browser and modify the ArcView Script (if necessary)

Three scripts have been included in the ArcView project file (link2net.ave, link2exe.ave, and link2mov.ave) to activate and transfer information to Netscape (link2net.ave), Microsoft Internet Explorer (link2exe.ave), or QuickTime Player (link2mov.ave).  These scripts must be modified to reflect the path to the browser location on your computer through the following steps:

1.  Determine the location of the web-browser (Netscape, Explorer, or other).

2.  Open the ArcView project file "nyofr01_470.apr" located in the nybgis directory found in the top-level directory of this DVD-ROM

3a.  To use Netscape as your browser, open the script "link2net.ave" and adjust the path name in the following line:


3b. To use Explorer as your browser, open the script "link2exe.ave" and adjust the path name in the following line:

System.Execute("C:\Program Files\Plus!\Microsoft Internet\Iexplore.exe"++theVal)

3c.  To use a browser other than Netscape or Explorer, substitute the path to the browser in either script.

3d.  (For digital video clips) To use the video-hotlink script "link2mov.ave" make sure that the path name in the following line of the script specifies that location of QuickTime Player on the users machine:

System.Execute("C:\Program Files\QuickTime\QuickTimePlayer.exe"++theVal.asstring)

4.   Compile the script in ArcView by clicking on the "check" icon on the tool bar at the top of the scripts window.  Do not to run the script in the script window (an error message will result).  ArcView will utilize the browser in the script that is left highlighted.

C.  Setting the Script to run in a View

If you choose Netscape as your browser, no other modifications are necessary to ArcView.  If you choose Internet Explorer (or another browser) as your browser, the script must be implemented.  To do this, highlight the View and select Theme Properties.  Along the left side of the GUI scroll until to the "Hotlink" icon and click on it.  Under Field, select "File path".  Under Predefined Action, select "link to user script".  Under script, select the name of the script just compiled that contains the correct path to your browser.  Unless the DVD-ROM is saved to the user's hard drive, these changes will have to be implemented for each use of the DVD-ROM.  Details on how the script was created and implemented can be found in the ArcView help files using the keyword "hotlinks".

D.  Viewing Images

Once the above changes are made, the photographs can be viewed in ArcView.  Open the "nyofr01_470.apr" project file in the directory "( -ROM Drive):\nybgis".  The locations of the sampling stations, the locations of each picture, the locations of the grab samples, the video transects and selected video-clip locations are shown for each station.  To view thumbnails of all the pictures at a station, highlight station location shape file (often ending in 'stat.shp'), select the hotlink button (lightening bolt) and click on the desired station location marker on the ArcView map coverage (note that the bottom tip of the lightening bolt icon must be positioned over the station marker).  To view a larger image of each picture, click on the picture thumbnail.  Note that the individual photo locations (often ending in 'pics.shp') are not hot-linked, but the images are in sequential order from the beginning of the transect to the end.  The dots showing the navigation points in the video survey (***vid.shp) show the position of the camera every 10-seconds.  To view a brief video-clip from cruise OCNS9906 or ENDV00013 click on the desired video-clip location marker (movlocs.shp or movlocl.shp) with the hotlink mechanism (lightening bolt) to activate QuickTime Player which will display a video clip at that location.  The 'movlocl.shp' file links the user to a 640 x 480 version of the movie clips.  For many systems this version will be too cumbersome to view, so a smaller version 320 x 240 is linked through the 'movlocs.shp' file.

III. Individual JPEG images

Each photo is stored as a JPEG file in folders created for each sampling station. The photo file name is listed below each thumbnail on each station page.  Within each station folder (found in the "nypages" folder in the "nybgis/nyimage" directory), a web page called "index.htm" will bring up a master page for each station.  Clicking on the photo thumbnails on the station pages will open the picture files.

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Title Page / Contents / Using / Figures / Introduction / Photos / Movies / Viewing / Acknowledgments / References
Appendices:    Bottom Photo    /    Sea Floor Movies    /   Sediment Texture    /   ArcView    /    Metadata

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