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Lake Helen Seismic Profiles

Below are thumbnail images of each line with links to full-size printable and interactive seismic reflection profiles. The printable profiles are GIF images that were filtered and gained using Seismic Unix software. These images are stored in the PRINTABLE folder. Refer to the Software page for details about the processing and examples of the processing scripts. The processed SEG-Y data were exported to CTI SonarWeb software to produce interactive versions of the profiles that allow the user to obtain a geographic location and depth for a cursor position on the profile. This information is displayed in the status bar of the browser. The interactive profiles, which are stored in the INTERACTIVE folder, have been corrected for the offset between the shotpoint and GPS antenna (see fig. 1).

The Lake Helen map illustrates the locations of the interactive and printable profiles presented below.

Table 2 lists trackline statistics for 08LCA01.

NOTE: The only supported Web browsers that properly display all features of the interactive profiles are Internet Explorer 6 or greater for Windows and Firefox 1.5 or greater for all platforms. Use of other browsers may result in spurious or no information given in the status window. Firefox may be downloaded at http://www.mozilla.org/products/firefox.

Browser setup for viewing interactive profiles:
For all browsers, the status bar and JavaScript must be enabled. Firefox also requires "Change status bar text" to be checked under Advanced JavaScript Options.

If using Internet Explorer 7, Active Content/ActiveX controls must be disabled. Instructions for doing this can be found by clicking on the "details and setup" link on the interactive profile pages.

SEG-Y Format
How to Download SEG-Y Data
FGDC Metadata

Additional Seismic Profile Pages:

Lake Colby | Lake Helen | Trout Lake | Lake Searcy | Lake Saunders | Big Lake | Lake Prevatt | Three Island Lakes | Johns Lake | Lake Avalon

Line: 08b10  1485 traces:
Start of line:   08b10     SHOT=1   day=84 hour=20  minute=38  sec=53
End of line:   08b10  SHOT=1485   day=84 hour=20  minute=51  sec=15
INTERACTIVE | PRINTABLE

Line: 08b11  1500 traces:
Start of line:   08b11     SHOT=1   day=84 hour=20  minute=51  sec=16
End of line:   08b11  SHOT=1500   day=84 hour=21   minute=3  sec=45
INTERACTIVE | PRINTABLE

Line: 08b12  1031 traces:
Start of line:   08b12     SHOT=1   day=84 hour=21   minute=3  sec=46
End of line:   08b12  SHOT=1031   day=84 hour=21  minute=12  sec=21
INTERACTIVE | PRINTABLE

Line: 08b13   942 traces:
Start of line:   08b13     SHOT=1   day=84 hour=21  minute=13  sec=18
End of line:   08b13   SHOT=942   day=84 hour=21  minute=21   sec=9
INTERACTIVE | PRINTABLE

Line: 08b14  1579 traces:
Start of line:   08b14     SHOT=1   day=84 hour=21  minute=22   sec=6
End of line:   08b14  SHOT=1579   day=84 hour=21  minute=35  sec=15
INTERACTIVE | PRINTABLE

Line: 08b15   857 traces:
Start of line:   08b15     SHOT=1   day=84 hour=21  minute=35  sec=15
End of line:   08b15   SHOT=857   day=84 hour=21  minute=42  sec=23
INTERACTIVE | PRINTABLE

Line: 08b16   655 traces:
Start of line:   08b16     SHOT=1   day=84 hour=21  minute=42  sec=24
End of line:   08b16   SHOT=655   day=84 hour=21  minute=47  sec=51
INTERACTIVE | PRINTABLE

Line: 08b17  1197 traces:
Start of line:   08b17     SHOT=1   day=84 hour=21  minute=47  sec=51
End of line:   08b17  SHOT=1197   day=84 hour=21  minute=57  sec=49
INTERACTIVE | PRINTABLE

Line: 08b18  1025 traces:
Start of line:   08b18     SHOT=1   day=84 hour=21  minute=57  sec=50
End of line:   08b18  SHOT=1025   day=84 hour=22   minute=6  sec=22
INTERACTIVE | PRINTABLE

Line: 08b19  1432 traces:
Start of line:   08b19     SHOT=1   day=84 hour=22   minute=6  sec=22
End of line:   08b19  SHOT=1432   day=84 hour=22  minute=18  sec=18
INTERACTIVE | PRINTABLE