Identification_Information: Citation: Citation_Information: Originator: VeeAnn A. Cross Publication_Date: 2014 Title: JD104HYPACK.SHP: Parsed HYPACK navigation from April 14, 2010 of U.S. Geological Survey Field Activity 2010-006-FA in Indian River Bay, Delaware (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: http://pubs.usgs.gov/of/2011/1039/data/navigation/hypack/processed/jd104hypack.zip Online_Linkage: http://pubs.usgs.gov/of/2011/1039/html/ofr2011-1039-catalog.html 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: http://pubs.usgs.gov/of/2011/1039/ Online_Linkage: http://dx.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 http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=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: 20100414 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -75.194933 East_Bounding_Coordinate: -75.074567 North_Bounding_Coordinate: 38.615450 South_Bounding_Coordinate: 38.570533 Keywords: Theme: Theme_Keyword_Thesaurus: General 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_Keyword: oceans and estuaries Theme_Keyword: oceans and coastal Place: Place_Keyword_Thesaurus: General 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: http://pubs.usgs.gov/of/2011/1039/data/navigation/hypack/processed/jd104hypack.gif Browse_Graphic_File_Description: Thumbnail GIF image showing HYPACK navigation points collected April 14, 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 14, 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 14, 2010, the LOG file was RAW0414.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 205_1220.holdhypack \ >008_1251.holdhypack \ >006_1407.holdhypack \ >007_1631.holdhypack \ >004_1635.holdhypack \ >004_1734.holdhypack \ >003_1834.holdhypack \ >002_1856.holdhypack \ >033_1944.holdhypack \ >033_2014.holdhypack \ >033A2014.holdhypack \ >033B2014.holdhypack \ >033_2015.holdhypack \ >033A2015.holdhypack \ >033_2016.holdhypack \ >033_2017.holdhypack \ >123_2025.holdhypack \ >123_2026.holdhypack \ >123A2026.holdhypack \ >034_2026.holdhypack \ >035_2035.holdhypack \ >036_2056.holdhypack \ >037_2109.holdhypack \ >038_2127.holdhypack \ >039_2140.holdhypack \ >040_2159.holdhypack \ >041_2214.holdhypack \ >011_2244.holdhypack \ >010_2254.holdhypack \ >013_2315.holdhypack > jd104hypack.csv Source_Used_Citation_Abbreviation: *.holdhypack Process_Date: 201004 Source_Produced_Citation_Abbreviation: jd104hypack.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 jd104hypack.shp. Source_Used_Citation_Abbreviation: jd104hypack.csv Process_Date: 201004 Source_Produced_Citation_Abbreviation: jd104hypack.shp Process_Step: Process_Description: The table of this shapefile was edited in ArcMap 9.2 to add two additional attributes: gpsdate and jday. Source_Used_Citation_Abbreviation: jd104hypack.shp Process_Date: 201004 Source_Produced_Citation_Abbreviation: jd104hypack.shp 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: 32370 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: jd104hypack 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: -75.194933 Range_Domain_Maximum: -75.074567 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: 38.570533 Range_Domain_Maximum: 38.61545 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: 9.5 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: 104 Range_Domain_Maximum: 104 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: 0.68 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2011/1039/data/navigation/hypack/processed/jd104hypack.zip Network_Resource_Name: http://pubs.usgs.gov/of/2011/1039/html/ofr2011-1039-catalog.html Network_Resource_Name: http://dx.doi.org/10.3133/ofr20111039 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: 20140630 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 Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile