John F. Bratton
2008
Continuous Resistivity Profile Tracklines of Data Collected from Cape Cod National Seashore, May 17-20, 2004
vector digital data
Open-File Report
2006-1169
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20061169
http://pubs.usgs.gov/of/2006/1169/data/gis/resistivity/navproc_ln2004.zip
http://pubs.usgs.gov/of/2006/1169/htmldocs/catalog.htm
VeeAnn A. Cross
John F. Bratton
John Crusius
John A. Colman
Timothy D. McCobb
2008
Submarine Hydrogeological Data from Cape Cod National Seashore
Open-File Report
2006-1169
Reston, VA
U.S. Geological Survey
http://pubs.usgs.gov/of/2006/1169/
Continuous resistivity profiling (CRP) surveys were conducted at Cape Cod National Seashore in 2004 and 2006 in order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean. Coastal resource managers here and elsewhere are concerned about nutrients that are entering coastal waters via submarine groundwater discharge, which are contributing to eutrophication and harmful algal blooms. CRP is used to measure electrical resistivity of sediments, a property that is sensitive to differences in salinity of submarine ground water. The 2004 and 2006 surveys used floating resistivity streamers of 100 m and 50 m respectively. The depth penetration of the streamers is approximately 20% of the streamer length which translates to approximately 20-25 m with the 100 m streamer and 12-14 m with the 50 m streamer. These data were processed using AGI's EarthImager 2D software.
This shapefile is provided to show the tracklines where continuous resistivity profile data were collected and processed.
20040517
20040520
ground condition
None planned
-70.036200
-69.919617
42.022050
41.669400
USGS Metadata Identifier
USGS:40ea1293-997f-456c-8f68-b953f651c817
None
CMGP
Coastal and Marine Geology Program
Continuous Resistivity Profiling
CRP
navigation
OF 2006-1169
Open-File Report
polyline
trackline
U.S. Geological Survey
USGS
Woods Hole Science Center
WHSC field activity serial number 04014
ISO 19115 Topic Category
location
inlandWaters
oceans
USGS Thesaurus
navigational data
continuous resistivity profiling
geospatial datasets
None
Atlantic Ocean
Cape Cod
Massachusetts
North America
United States
Pleasant Bay
Salt Pond
Nauset Marsh
Cape Cod National Seashore
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.
John F. Bratton
U.S. Geological Survey
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
508-548-8700 x2254
508-457-2210
jbratton@usgs.gov
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780
No additional checks for topological consistency other than visual inspection were performed on the data.
Only those lines with valid resistivity data are represented here.
USGS
unpublished material
Raw CRP data
This file had a source contribution, but no source citation information. This information was populated based on information in the source contribution.
digital data
20040517
20040520
ground condition - time period of content was inferred from the time period of the dataset
Raw data
These data were acquired with an AGI SuperSting Marine system that is described at the website: www.agiusa.com/marinesystem.shtml. The particular system used for this acquisition was an 11 stainless steel electrode array with electrodes spaced 10 meters apart. A dipole-dipole configuration was used for the data collection in which two fixed current electrodes are assigned with the measurement of voltage potentials between electrode pairs in the remaining electrodes. Each line of data acquisition records several files. The two files necessary for processing are the *.stg and *.gps file. The STG file contains the resistivity data, while the GPS file contains the navigation information. Bathymetry point data was collected with a separate system and logged as text files.
The data were transferred from the logging computer via AGISSAdmin software.
2004
John F. Bratton
U.S. Geological Survey
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700 x2254
(508) 457-2310
jbratton@usgs.gov
The bathymetry text files needed to be merged with the GPS navigation files. The logging of the navigation files started at the same time as the logging of the resistivity files. Although the bathymetry data contains no time stamps, the assumption was made that the time span was the same as the navigation file. The bathymetry data was acquired in feet at a faster rate than the navigation data. An awk script was written to convert the bathymetry data to meters, pull the appropriate bathymetry point to match up with the navigation point, and output the format as SDDBT (the format that EarthImager expects). The points to pull was based on the assumption that the time span of navigation and bathymetry was the same, so took the total number of bathymetry points and divided it by the number of navigational fixes, and pulled the bathymetry point at that increment. Another awk script was written to merge the navigation data and bathymetry data into a single file.
2004
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
$GPRMC lines with the GPS file that had bad time stamps or were otherwise corrupt were deleted.
2004
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
The GPS files were processed using an AWK script to parse out the navigational and bathymetric information from the $GPRMC and $SDDPT strings and concatenate this information into a single file.
2004
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
This comma delimited text file was then imported as a table into ArcView 3.3.
2004
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
The table was then added as an event theme into ArcView.
2004
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
An avenue script (pnts2lines.ave) was run that converted the event theme to a polyline shapefile. The unique attribute "Linename" was used to generate a separate record for each individual acquisition line.
2004
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
Lines for which there was no valid resistivity data were deleted.
2004
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 2.9.30 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. The source citation information is inferred from other information in the metadata and was not part of the original metadata file. Source time period of content was inferred from the time period of the dataset. Needed to add link to data in the distribution section. Other minor edits were probably performed (title, publisher, publication place, etc.). 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.
20151110
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543
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
Vector
String
30
0.000001
0.000001
Decimal degrees
North American Datum of 1983
Geodetic Reference System 80
6378137.000000
298.257222
navproc_ln2004
Information unavailable from original metadata.
Information unavailable from original metadata.
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
ID
Software generated identification number.
Software.
0
40
LINENAME
Prefix of the filename used during data acquisition.
Technician.
character set
TIME
GPS time for the start of the trackline.
Data processor.
Time in hr:min:sec
LENGTH
Length in meters of the complete trackline based on UTM, Zone19, NAD83 projection.
Software calculated.
495.542
11474.6
meters
COLDATE
Date of data acquisition.
Data processor.
character set
John F. Bratton
U.S. Geological Survey
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700 x2254
(508) 457-2310
jbratton@usgs.gov
Downloadable Data
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
SHP
Zip file contains data and metadata.
WinZip
0.244
http://pubs.usgs.gov/of/2006/1169/data/gis/resistivity/navproc_ln2004.zip
None.
These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.
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