Other ID: IB C-27-00-GC
Status: Completed
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Funding Program(s):
Principal Investigator(s): David Twichell
Affiliate Investigator(s): Mark Rudin, UNLV
Information Specialist(s): David Twichell
Data Type(s): Imagery: Photo, Imagery: Video, Location-Elevation: Navigation, Sampling: Geology, Seismics: Sub Bottom Profiler, Sonar: Sidescan, Sonar: Single Beam
Scientific Purpose/Goals: Seismic and sidescan mapping of deltas along the edge of the Las Vegas Bay part of Lake Mead to serve as a base map for coring and other environmental monitoring studies.
Vehicle(s):
Start Port/Location: Las Vegas Bay Marina
End Port/Location: Las Vegas Bay Marina
Start Date: 2000-05-30
End Date: 2000-06-09
Equipment Used: Knudsen CHIRP Sub-bottom Profiler, Echosounder, Edgetech DF-1000 sidescan sonar, GPS (wh)
Information to be Derived:
Summary of Activity and Data Gathered:
Staff: VeeAnn Cross, Kenneth F. Parolski
Affiliate Staff:
Mark Rudin
UNLV
co-chief scientist
Notes: A second component of the field work will include coring that will be completed during the week of July 11-18. This part of the work will require a P-code navigation system with a navigation laptop with MapInfo on it. The rest of the coring gear will come from elsewhere. Original Center People field contained: Ken Parolski - sidescan/seismic tech., VeeAnn Cross - data processor.
Project = Lake Mead Geophysical Survey, Lake Mead Geophysical Survey
Information from Foghorn: Knudsen chirp sub-bottom profiler with digital data logger for chirp system, EdgeTech 100-kHz sidescan system, ISIS sidescan logging, P-CODE GPS with HYPACK navigation package, Data processing computer, CD-ROM mastering system for data archival;
Location:
Lake Mead, Arizona, Nevada, United States, North America,
| Boundaries | |||
|---|---|---|---|
| North: 36.14 | South: 36.08 | West: -114.88 | East: -114.73 |
Platform(s):
Commodore |
Cross, V.A., and Twichell, D.C., 2003, Archive of seismic-reflection data collected during USGS Cruise Lake Mead 00027 in Lake Mead - Nevada, 1-6 June, 2000: U.S. Geological Survey Open-File Report 2003-4, https://doi.org/10.3133/ofr034.
Twichell, D.C., and Cross, V.A., 2009, Surficial geology of the floor of Lake Mead (Arizona and Nevada) as defined by sidescan-sonar imagery, lake-floor topography, and post-impoundment sediment thickness: U.S. Geological Survey Open-File Report 2009-1150, CD-ROM, https://doi.org/10.3133/ofr20091150.
Twichell, D.C., Cross, V.A., and Belew, S.D., 2004, Mapping the floor of Lake Mead (Nevada and Arizona)—Preliminary discussion and GIS data release: U.S. Geological Survey Open-File Report 2003-320, DVD, URL: https://doi.org/10.3133/ofr03320.
Twichell, D.C., Cross, V.A., Rudin, M.J., and Parolski, K.F., 2000, Surficial geology and distribution of post-impoundment sediment of the western part of Lake Mead based on a sidescan sonar and high-resolution seismic-reflection survey: U.S. Geological Survey Open-File Report 99-581, 28 p., URL: https://doi.org/10.3133/ofr99581.
Twichell, D.C., Cross, V.A., Rudin, M.J., Parolski, K.F., and Rendigs, R.R., 2001, Surficial geology and distribution of post-impoundment sediment in Las Vegas Bay, Lake Mead: U.S. Geological Survey Open-File Report 2001-70, 27 p., URL: https://doi.org/10.3133/ofr0170.
FAN 2000-027-FA has data viewable in the GeoMappApp/Virtual Ocean applications. To view this data in these applications go to http://www.geomapapp.org/ and http://www.virtualocean.org/. See the instructions for locating USGS data in these applications. You can also view the imagery created from the SEGY data at https://cmgds.marine.usgs.gov/images.php?cruise=2000-027-FA.
| Title | Survey Equipment | Description |
|---|---|---|
| Navigation log | (document not focused on specific equipment) | Watchstanders' log of navigation and file. Appears to be incomplete - very little information. |
| Seismic log | Knudsen CHIRP Sub-bottom Profiler | Watchstanders' log of seismic equipment and data collection notes, file and line changes. |
| ISIS log | Edgetech DF-1000 sidescan sonar | Watchstanders' log of ISIS system including data collection and equipment notes, line and file name changes |
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| Knudsen CHIRP Sub-bottom Profiler | --- | Sub Bottom Profiler | 2000-027-FA-SE-001 (Raw Chirp SEGY data available from CMGDS.) Chirp seismic profile images (JPEG images of chirp seismic-reflection data with and without interpretations.) 2000-027_chirptracks (Trackline navigation of chirp seismic acquisition) 2000-027_chirp shot navigation (Shotpoint navigation of chirp seismic acquisition at 100 shot intervals.) |
| Echosounder | --- | Single Beam | Bathymetry GIS data |
| Edgetech DF-1000 sidescan sonar | --- | Sidescan | LVWash sidescan enhanced mosaic - geographic (Enhanced sidescan mosaic of Las Vegas Wash - geographic coordinate system) LVWash sidescan enhanced mosaic (Enhanced sidescan mosaic of Las Vegas Wash - UTM projection.) 2000-027_sidescan navigation tracks (Trackline navigation of sidescan sonar acquisition.) |
| GPS (wh) | --- | Navigation | 2000-027_Nav_data (All navigation recorded by HYPACK.) |
