Parsed HYPACK navigation from April 15, 2010 of U.S. Geological Survey Field Activity 2010-006-FA in Indian River Bay, Delaware (JD105HYPACK.SHP, Geographic, WGS 84)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: VeeAnn A. Cross
Publication_Date: 2014
Title:
Parsed HYPACK navigation from April 15, 2010 of U.S. Geological Survey Field Activity 2010-006-FA in Indian River Bay, Delaware (JD105HYPACK.SHP, Geographic, WGS 84)
Edition: 1
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1039
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.3133/ofr20111039
Online_Linkage: Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: V.A. Cross
Originator: J.F. Bratton
Originator: H.A. Michael
Originator: K.D. Kroeger
Originator: A. Green
Originator: E. Bergeron
Publication_Date: 2014
Title:
Continuous Resistivity Profiling and Seismic-Reflection Data Collected in April 2010 from Indian River Bay, Delaware
Edition: 1
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1039
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2011/1039/
Online_Linkage: https://doi.org/10.3133/ofr20111039
Description:
Abstract:
A geophysical survey to delineate the fresh-saline groundwater interface and associated sub-bottom sedimentary structures beneath Indian River Bay, Delaware, was carried out in April 2010. This included surveying at higher spatial resolution in the vicinity of a study site at Holts Landing, where intensive onshore and offshore studies were subsequently completed. The total length of continuous resistivity profiling (CRP) survey lines was 145 kilometers (km), with 36 km of chirp seismic lines surveyed around the perimeter of the bay. Medium-resolution CRP surveying was performed using a 50-meter streamer in a bay-wide grid. Results of the surveying and data inversion showed the presence of many buried paleochannels beneath Indian River Bay that generally extended perpendicular from the shoreline in areas of modern tributaries, tidal creeks, and marshes. An especially wide and deep paleochannel system was imaged in the southeastern part of the bay near White Creek. Many paleochannels also had high-resistivity anomalies corresponding to low-salinity groundwater plumes associated with them, likely due to the presence of fine-grained estuarine mud and peats in the channel fills that act as submarine confining units. Where present, these units allow plumes of low-salinity groundwater that was recharged onshore to move beyond the shoreline, creating a complex fresh-saline groundwater interface in the subsurface. The properties of this interface are important considerations in construction of accurate coastal groundwater flow models. These models are required to help predict how nutrient-rich groundwater, recharged in agricultural watersheds such as this one, makes its way into coastal bays and impacts surface water quality and estuarine ecosystems. For more information on the survey conducted for this project, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-006-FA.
Purpose:
The purpose of this point shapefile is to provide the parsed data from the raw HYPACK (VER 9.0.5.17) navigation files. The parsed data will contain latitudes, longitudes, and depth values. The depth values are particularly necessary to fill depth data gaps in the continuous resistivity profile GPS data.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20100415
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -75.181767
East_Bounding_Coordinate: -75.072817
North_Bounding_Coordinate: 38.620200
South_Bounding_Coordinate: 38.576183
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:98a21fb8-0fca-4137-9dcb-41f0812aa678
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: Field Activity Number 2010-006-FA
Theme_Keyword: Info Bank ID K-6-10-DL
Theme_Keyword: navigation
Theme_Keyword: bathymetry
Theme_Keyword: R/V Knob
Theme_Keyword: Lowrance GPS
Theme_Keyword: HYPACK
Theme_Keyword: point shapefile
Theme_Keyword: Open-file Report 2011-1039
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme_Keyword: location
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: navigational data
Theme_Keyword: continuous resistivity profiling
Theme_Keyword: geospatial datasets
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: North America
Place_Keyword: North Atlantic Ocean
Place_Keyword: United States
Place_Keyword: Delaware
Place_Keyword: Indian River Bay
Place_Keyword: Indian River Inlet
Place_Keyword: Holts Landing
Place_Keyword: Piney Neck
Place_Keyword: Sussex County
Place_Keyword: Rosedale Beach
Access_Constraints: None.
Use_Constraints:
The public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Thumbnail GIF image showing the location of HYPACK navigation points collected April 15, 2010. The coastline is included for spatial reference.
Browse_Graphic_File_Type: GIF
Native_Data_Set_Environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095
Data_Quality_Information:
Logical_Consistency_Report: All of the HYPACK files were handled in the same manner.
Completeness_Report:
This point shapefile represents every valid location fix and accompanying depth parsed from the raw HYPACK ASCII files. Points that fell obviously outside the study area (such as ones with longitude or latitude values of 0) were deleted from the shapefile.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The navigation system used was a Lowrance 480M with an LGC-2000 Global Positioning System (GPS) antenna. The antenna was located directly above the fathometer transducer mount point. GPS data are assumed to be accurate within 10 meters on this survey.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
All bathymetry values were acquired by the 200 kHz Lowrance fathometer. The fathometer was mounted on the starboard side of the R/V Knob, directly below the GPS antenna. The Lowrance manufacturer indicates the speed of sound used by the system to calculate depth is 4800 feet/second. The depth values are not corrected for the approximately 0.2 m transducer draft. All depth values are assumed to be accurate to within 1 meter.
Lineage:
Process_Step:
Process_Description:
All the ASCII HYPACK (VER 9.0.5.17) navigation files collected on April 15, 2010 were placed in their own folder on the computer. Each file has the following filename convention: LLL_TTTT.RAW where LLL is the line number and TTTT is the start time (UTC) of data collection in the format HHMM. In order to parse these files to extract navigation and depth information, two scripts were run under a Cygwin operating system. The first script "donav" is an executable script that cycles through all the *.raw files in the folder and calls another script to extract particular lines of information.
donav:
files=`ls *.RAW | cut -d. -f1`
for file in $files
do
	awk -f awkit $file.RAW > $file.navdep
done
The AWK script "awkit" simply extracts any line of information in the HYPACK file that contains either the string "GPGGA" or "SDDBT" and writes this information to a new file with the extension navdep.
awkit:
{
if ($0 ~ /GPGGA|SDDBT/) {
	print $0
	}
}
This process step and all subsequent process steps were performed by the same person - VeeAnn A. Cross.
Source_Used_Citation_Abbreviation: *.RAW
Process_Date: 201004
Source_Produced_Citation_Abbreviation: *.navdep
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description:
With the particular lines of interest extracted from the original HYPACK files, additional scripts were run to extract the specific information of interest. The next two scripts run are doholdhypack and awkholdhypack. The doholdhypack is a shell script run under Cygwin which cycles through all the *.navdep files in the folder and calls the awkholdhypack AWK script to process the file, with the results output to *.holdhypack. Of note, if the SDBPT record does not contain a depth value, a value of -9999 is written to the output file - acting as a nodata value. >doholdhypack:
files=`ls *.navdep | cut -d. -f1`
for file in $files
do
	awk -f awkholdhypack $file.navdep > $file.holdhypack
done
awkholdhypack:
BEGIN {
FS = ","
}
{
FS = ","
depth = -9999
if ($1 ~ /GPGGA/)
	{
	utctime = $2
	latdeg = substr($3,1,2)
	latmin = substr($3,3,6)
	declat = latdeg + (latmin/60)
	londeg = substr($5,1,3)
	lonmin = substr($5,4,6)
	declon = -1 * (londeg + (lonmin/60))
	if (NR==1) {
		holddepth = -9999
		}
	else {
		printf("%s, %9.6f, %9.6f, %5.1f\n", holdutctime, holddeclon, holddeclat, holddepth)
	}
	holdutctime = utctime
	holdutcdate = utcdate
	holddeclon = declon
	holddeclat = declat
	holddepth = -9999
	}
if ($1 ~ /SDDBT/)
	{
	if ($4 != "")
		{
		depthreal = $4
		holddepth = depthreal
		}
	else
		{
		depthreal = -9999
		holddepth = -9999
		}
	}
}
END {
printf("%s, %9.6f, %9.6f, %5.1f\n", holdutctime, holddeclon, holddeclat, holddepth)
}
Source_Used_Citation_Abbreviation: *.navdep
Process_Date: 201004
Source_Produced_Citation_Abbreviation: *.holdhypack
Process_Step:
Process_Description:
With each individual HYPACK file processed, I want to concatenate all the individual files on a given day into a single file. Because the file naming convention starts with the line number, and surveying wasn't done in numerical order of lines, I have to look at the order the files were acquired. The time is in the filename, but another additional file written during acquisition was a LOG file containing the order of the lines. By editing this file and converting it to a shell script, the individual files can be concatenated in chronological order. On April 15, 2010, the LOG file was RAW0415.LOG. This file, copied to a new file "catit", edited, converted to an executable file, and run under Cygwin successfully concatenated the files.
catit:
cat 008_1213.holdhypack \
043_1404.holdhypack \
043_1422.holdhypack \
044_1423.holdhypack \
045_1423.holdhypack \
043_1424.holdhypack \
044_1424.holdhypack \
044A1424.holdhypack \
043_1425.holdhypack \
043_1426.holdhypack \
044_1427.holdhypack \
045_1441.holdhypack \
045_1500.holdhypack \
046_1500.holdhypack \
047_1545.holdhypack \
048_1606.holdhypack \
049_1625.holdhypack \
050_1647.holdhypack \
118_1723.holdhypack \
112_1737.holdhypack \
001_1744.holdhypack \
023_1744.holdhypack \
021_1811.holdhypack \
019_1827.holdhypack \
017_1857.holdhypack \
015_1912.holdhypack \
515_2015.holdhypack \
518_2024.holdhypack \
521_2035.holdhypack \
524_2049.holdhypack \
527_2101.holdhypack \
530_2113.holdhypack \
533_2125.holdhypack \
536_2138.holdhypack \
539_2151.holdhypack \
542_2202.holdhypack \
545_2211.holdhypack > jd105hypack.csv
Source_Used_Citation_Abbreviation: *.holdhypack
Process_Date: 201004
Source_Produced_Citation_Abbreviation: jd105hypack.csv
Process_Step:
Process_Description:
Using VI editor, under Cygwin, the resulting CSV file was edited to add the header line "gpstime, longitude, latitude, depth_m". With this header line added, the CSV file can be imported to ArcMap 9.2 as an event theme using Tools - Add XY data and defining the projection as Geographic, WGS84. This event theme is then converted to a point shapefile by right mouse click - data - export and saving the shapefile as jd105hypack.shp.
Source_Used_Citation_Abbreviation: jd105hypack.csv
Process_Date: 201004
Source_Produced_Citation_Abbreviation: jd105hypack.shp
Process_Step:
Process_Description:
The table of this shapefile was edited in ArcMap 9.2 to add and populate two additional attributes: gpsdate and jday.
Source_Used_Citation_Abbreviation: jd105hypack.shp
Process_Date: 201004
Source_Produced_Citation_Abbreviation: jd105hypack.shp
Process_Step:
Process_Description:
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.). Attempted to modify http to https where appropriate. 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.
Process_Date: 20171002
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20200908
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 32948
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: Local surface
Depth_Resolution: 0.1
Depth_Distance_Units: meters
Depth_Encoding_Method: Attribute values
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: jd105hypack
Entity_Type_Definition: ESRI point shapefile
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: gpstime
Attribute_Definition:
GPS time in the format HHMMSS. GPS time is +4 hours from local time during the survey.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Although the value is represented as a number, the number as a whole doesn't have a particular meaning. Only when the individual parts for hours, minutes, and seconds are broken out does the number have meaning.
Attribute:
Attribute_Label: longitude
Attribute_Definition: Longitude position of the point (decimal degrees, WGS84)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -75.181767
Range_Domain_Maximum: -75.072817
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: latitude
Attribute_Definition: Latitude position of the point (decimal degrees, WGS84)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 38.576183
Range_Domain_Maximum: 38.6202
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: depth_m
Attribute_Definition:
Depth of the water below the fathometer in meters recorded by the ship's fathometer/navigation system. Datum is local surface (no tides taken into account). A value of -9999 indicates no data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 16.7
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: gpsdate
Attribute_Definition:
The date recorded in the GPS navigation in the format DDMMYY. Because of the time offset from local time, this date could actually be different than the local acquisition date.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Although the value is represented as a number, the number as a whole doesn't have a particular meaning. Only when the individual parts for day, month, and year are broken out does the number have meaning.
Attribute:
Attribute_Label: jday
Attribute_Definition:
This number represents the Julian day of data collection based on the GPS day. Julian day is the integer number representing the interval of time in days since January 1 of the year.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 105
Range_Domain_Maximum: 105
Attribute_Units_of_Measure: days
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Format_Version_Number: ArcGIS 9.2
Format_Information_Content:
This WinZip (v. 14) file contains the point shapefile as well as the associated metadata files.
Transfer_Size: 0.67
Digital_Transfer_Option:
Online_Option:
Fees: None.
Technical_Prerequisites:
This zip file contains data available in Esri point shapefile format. The user must have software capable of uncompressing the zip file and reading/displaying the shapefile.
Metadata_Reference_Information:
Metadata_Date: 20200908
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2251
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

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