VeeAnn A. Cross David C. Twichell 2004 tabular digital data Open-File Report 2004-1014 Woods Hole Coastal and Marine Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program https://doi.org/10.3133/ofr20041014 https://pubs.usgs.gov/of/2004/1014/htmldocs/metadata.htm VeeAnn A. Cross David C. Twichell 2004 Open-File Report 2004-1014 Reston, VA U.S. Geological Survey https://pubs.usgs.gov/of/2004/1014/ A two-week field operation was conducted in the John Day Reservoir on the Columbia River to image the floor of the pool, to measure the distribution and thickness of post-impoundment sediment, and to verify these geophysical data with video photography and bottom sediment samples. The field program was a cooperative effort between the USGS Coastal and Marine Geology Team of the Geologic Division and the USGS Columbia River Research Laboratory of the Biological Resources Division. The data collection was completed aboard the R/V ESTERO during September 13-27, 2000. The interest in sediment accumulation in the reservoir was two-fold. First, it was unknown how effective this reservoir was as a sediment trap to material that otherwise would have been transported down-river to the estuary and eventually to the ocean. The recent erosion of beaches along the Washington coast has been attributed to a decreased contribution of sediment from the Columbia River to the coastal system due to the damming of the river. Second, sediment accumulation on the floors of reservoirs along the Columbia River has been suggested to be diminishing salmon spawning grounds. The extent of changes in habitat since construction of the John Day Dam, however, had not been documented. Common data sets were needed to address both of these questions, and for these reasons this geophysical and sampling program was undertaken. These text files represent the raw navigation acquired on the cruise, including the fathometer data (point bathymetry data) collected on the cruise when available. WARNING: These data have not been checked for errors. No fathometer data was available for julian days 269, 270, and 271. For more information about the field activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2000-030-FA. 20000915 20000927 ground condition Complete None planned -120.685 -119.325 45.933 45.688 USGS Metadata Identifier USGS:fb6df746-6dbb-4303-b204-b4913f24714e None bathymetry CMGP Coastal and Marine Geology Program navigation Open-File Report reservoir U.S. Geological Survey USGS Woods Hole Science Center OF 2004-1014 USGS Thesaurus navigational data marine geophysics None Columbia River John Day Reservoir John Day Dam McNary Dam North America United States Lake Umatilla none The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data. VeeAnn A. Cross U.S. Geological Survey Marine Geologist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 (508) 548-8700 x2251 (508) 457-2310 vatnipp@usgs.gov Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.2.0.700 Information unavailable from original metadata. These text files represent all the raw navigation collected during the 2000 field work in the John Day Reservoir. The initial days (jd259 - jd267) were dedicated to sidescan-sonar and seismic-reflection mapping. The last 3 days (jd269-jd271) was dedicated to sediment sample and bottom photo/video collection. These navigation positions reflect the position of the ship. The accuracy is affected by the fact that the antenna is on a non-stable platform. Assumed accuracy of 5 meters. For data collected on julian days 259-267 (Sept. 15-Sept. 23) the navigation recorded with Coastal Oceanographics HYPACK software was reformatted using an AWK script. This text file has a total of 4 columns. Column 1: Date and time (GMT) as julian day(xxx):hour(xx):minute(xx):second(xx) Column 2: Longitude (decimal degrees) Column 3: Latitude (decimal degrees) Column 4: Depth from fathometer (in meters - because the number is negative, subtract 1 meter to account for draft). Julian days 269-271 (Sept. 25 - Sept. 27) GPS data were recorded using BlueMarble's GeoTracker software running within ArcView 3.2. For these days, no fathometer information was merged with the navigation string. An AWK script was used to reformat the navigation so that the text files (jd269.txt, jd270.txt and jd271.txt) have a total of 3 columns. Column 1: Date and time (GMT) as julian day(xxx):hour(xx):minute(xx):second(xx) Column 2: Longitude (decimal degrees) Column 3: Latitude (decimal degrees) 2000 VeeAnn A. Cross U.S. Geological Survey Marine Geologist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 (508) 548-8700 x2251 (508) 457-2310 vatnipp@usgs.gov Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Added the link to the data catalog page in the Identification section, and a link to the publication in the Larger Work Citation. Added online link to the data in the Distribution section. Added a link to the field activity. The information in the quantitative horizontal accuracy assessment was moved to the horizontal positional accuracy report. Added a generic latitude and longitude resolution. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. 20171206 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov USGS Thesaurus keywords added to the keyword section. 20180720 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Crossref DOI link was added as the first link in the metadata. 20191118 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Added keywords section with USGS persistent identifier as theme keyword. 20200908 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov 0.000001 0.000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 VeeAnn A. Cross U.S. Geological Survey Marine Geologist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 (508) 548-8700 x2251 (508) 457-2310 vatnipp@usgs.gov Downloadable Data These data were prepared by an agency of the United States Government. Neither the United States government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Although all data published in this report have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials. ASCII Zip file contains the data. https://pubs.usgs.gov/of/2004/1014/data/nav/allgps.zip none 20240318 VeeAnn A. Cross U.S. Geological Survey Marine Geologist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 (508) 548-8700 x2251 (508) 457-2310 whsc_data_contact@usgs.gov The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318) FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time