Unique shot point navigation for Edgetech SB-424 chirp subbottom profiler data collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri point shapefile, 2005-004-FA_CHIRPSHT.SHP)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2014
Title:
Unique shot point navigation for Edgetech SB-424 chirp subbottom profiler data collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri point shapefile, 2005-004-FA_CHIRPSHT.SHP)
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F71N7Z4H
Publication_Information:
Publication_Place:
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.5066/F71N7Z4H
Online_Linkage: Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Denny, J.F.
Originator: Danforth, W.W.
Originator: Worley, C.R.
Originator: Irwin, B.J.
Publication_Date: 2014
Title:
High-resolution geophysical and sample data collected in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005, USGS Field Activity 2005-004-FA
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F71N7Z4H
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F71N7Z4H
Description:
Abstract:
In freshwater bodies of New Hampshire, the most problematic aquatic invasive plant species is Myriophyllum heterophyllum or variable leaf water-milfoil. Once established, variable leaf water-milfoil forms dense beds that can alter the limnologic characteristics of a waterbody, impacting natural lacustrine communities and their habitats. Variable leaf water-milfoil infestations also disrupt recreational uses of waterbodies and have negatively affected swimming, boating, fishing, and property values in and around several lakes and ponds in New Hampshire.
In 1965, Moultonborough Bay, Lake Winnipesaukee became the first waterbody in New Hampshire where variable leaf water-milfoil was observed. Variable leaf water-milfoil is native to the Southeastern and Midwestern areas of the United States where more alkaline waters appear to limit the growth of this plant. Outside its native range, however, it adapts well to the relatively acidic, low-alkalinity, and nutrient-poor conditions of oligotrophic lakes and bays similar to Moultonborough Bay.
In 2005, the New Hampshire Department of Environmental Services (NHDES) collaborated with the U.S. Geological Survey to investigate the distribution (presence and density) of variable leaf water-milfoil in Moultonborough Bay. This study utilized geophysical systems and conventional water-quality measurements to identify lake-floor environments that may provide suitable habitat for the establishment and growth of variable leaf water-milfoil. The results of the study are intended to assist resource managers in federal and state agencies by providing methods for detecting variable leaf water-milfoil and for identifying areas susceptible to infestation. Ultimately, this information may lead to early detection, prevention, and more effective mitigation strategies.
Field activity information for this cruise is available on-line through the U.S. Geological Survey Coastal and Marine Geoscience Data System https://cmgds.marine.usgs.gov/fan_info.php?fa=2005-004-FA.
Purpose:
This shapefile contains shot point navigation for approximately 37 kilometers of chirp subbottom data collected with an Edgetech SB-424 chirp subbottom profiler by the U.S. Geological Survey during USGS survey 2005-04-FA. These data were collected in Moultonborough Bay, Lake Winnipesaukee, New Hampshire as part of a collaborative USGS and New Hampshire Department of Environmental Services research program to assess the distribution of variable leaf water-milfoil. The unique shot point navigation is generally used to aid in interpretation. The shot point navigation allows features in the seismic data to be correlated to features visible within the sidescan-sonar and bathymetry data.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20050726
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.390529
East_Bounding_Coordinate: -71.361101
North_Bounding_Coordinate: 43.728549
South_Bounding_Coordinate: 43.710921
Keywords:
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: Marine Geology
Theme_Keyword: field activity number 2005-004-FA
Theme_Keyword: USGS CMGP InfoBank ID R-1-05-NH
Theme_Keyword: field activity number 05004
Theme_Keyword: subbottom profiler
Theme_Keyword: seismic
Theme_Keyword: chirp
Theme_Keyword: Edgetech SB-424 subbottom profiler
Theme_Keyword: point shapefile
Theme_Keyword: navigation
Theme_Keyword: shot point navigation
Theme_Keyword: R/V Rafael
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: inlandWaters
Theme_Keyword: location
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: New Hampshire
Place_Keyword: Lake Winnipesaukee
Place_Keyword: Moultonborough Bay
Access_Constraints: None.
Use_Constraints:
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: Jane F. Denny
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x 2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Image showing shot point navigation for chirp subbottom data collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095
Cross_Reference:
Citation_Information:
Originator: Denise M. Argue
Originator: Richard G. Kiah
Originator: Jane F. Denny
Originator: Jeffrey R. Deacon
Originator: William W. Danforth
Originator: Craig M. Johnston
Originator: Amy P. Smagula
Publication_Date: 2007
Title:
Relation of Lake-Floor Characteristics to the Distribution of Variable Leaf Water-Milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Scientific Investigations Report
Issue_Identification: 2007-5125
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/sir/2007/5125/
Cross_Reference:
Citation_Information:
Originator: John Stockwell
Publication_Date: 2005
Title: Seismic Un*x
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: Golden, Colorado, USA
Publisher: Center for Wave Phenomena - Colorado School of Mines
Online_Linkage: http://www.cwp.mines.edu/cwpcodes/index.html
Cross_Reference:
Citation_Information:
Originator: Barry, K.M.
Originator: Cavers, D.A.
Originator: Kneale, C.W.
Publication_Date: 1975
Title: Report on recommended standards for digital tape formats
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Geophysics
Issue_Identification: v. 40, no. 02, p. 344-352.
Publication_Information:
Publication_Place: Houston, Texas
Publisher: Society of Exploration Geophysicists (SEG)
Online_Linkage: http://www.seg.org/documents/10161/77915/seg_y_rev0.pdf
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All attributes were evaluated during processing as standard quality control to ensure attributes contain accurate and relevant information and values.
Logical_Consistency_Report:
All subbottom data were collected during USGS cruise 2005-004-FA using an Edgetech SB-424 chirp subbottom profiler. Seismic trackline navigation was generated from unique shot navigation for the seismic system. The unique shot navigation data were evaluated during processing for spurious points; all spurious points were removed prior to generating the trackline navigation.
Completeness_Report:
This shapefile contains unique shot point navigation for lines 43 -81, 84 - 112 of chirp subbottom data collected on JD 207(07/26/2005) during USGS field activity 2005-004-FA. Lines 43 - 81, 84 - 112 were a 'rerun' of lines 1 - 42 to try to improve on the data quality as there were significant system errors and malfunctions during data collection on JD 206 (07/25/2005). Shot point navigation for lines 1 - 42 are not included in this dataset. They were not used for interpretative purposes.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigation was acquired with Wide Area Augmentation System (WAAS), which is accurate to + or - 1 to 2 meters, horizontally. Navigation data were acquired with a LGBX Pro receiver and sent to Triton-Elics Delph seismic acquisition software, where Chirp sub-bottom data were recorded in Society of Exploration Geophysicists Y (SEG-Y) format (Barry and others, 1975) with DGPS logged to the SEG-Y trace headers.
The Edgetech SB-424 chirp subbottom profiler was towed near the surface, close to the R/V Rafael. The instrument was secured in this position throughout the survey. Due to this tow configuration, any layback was minimal. The overall horizontal accuracy, given even a small (~ 1 meter) offset between the WAAS antenna and the tow-body, is + or - 5 meters.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: Raw Chirp Subbottom Data
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20050726
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: none
Source_Contribution:
Chirp subbottom data were acquired with an Edgetech SB-424 chirp subbottom profiler. The SB-424 was deployed off the port side of the USGS R/V Rafael and towed close to the lake surface. Approximately 37 km of chirp subbottom data were collected.
Data were recorded at a 75-millisecond (ms) record length (1875 samples, 40 microsecond sample interval) and a 4-24 kHz sweep and were logged using Triton-Elics Delph seismic acquisition software (version 2005) in Society of Exploration Geophysicists Y (SEG-Y) format (Barry and others, 1975) with WAAS navigation logged to the SEG-Y file trace headers. Navigation in the SEGY header was stored as seconds of arc. The raw chirp SEGY contained 3 channels: raw, match-filtered, and envelope detected. The envelope detected channel was used for data processing.
Process_Step:
Process_Description:
A C-shell script was executed using Sioseis (v. 2011.2.7) to read the raw SEG-Y file and write out a new SEG-Y file with the shots renumbered starting at 1. A second C-shell script was executed using Seismic Unix (version 4.1) to read the renumbered SEG-Y files, write a Seismic Unix format file (*.su), and extract SEG-Y trace header information, which included shot number, source x (arc seconds), source y (arc seconds), year, Julian Day, hour, minute, second (UTC). Geographic coordinates (stored in arc seconds WGS 84) were converted to eastings and northings, UTM, Zone 19N, meters using proj (v. 4.7.1). Before saving the header information to a text file, the data were filtered using AWK (no version) to save only unique shot point locations. The unique shot navigation for each seismic line were then concatenated into a comma delimited (.csv) text file. The header records for the first several shots contained no navigation information, therefore the 'first' shot of the line is considered the first shot with usable data stored in the header. This was generally within the first 10 shots for the majority of lines. (Stockwell, 2005)
Jane F. Denny performed this and all subsequent process steps.
Process_Date: 2013
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Process_Step:
Process_Description:
The text file (*.csv) was imported into Esri ArcMap 9.3 using ArcCatalog, Create Feature Class from XY Table, specifying UTM, Zone 19N, WGS84 coordinate system. The point shapefile was then reprojected to Geographic Coordinate System, WGS 84 (GCS_WGS_1984). The point shapefile was visually inspected for spurious data points.
The following fields were added to the point shapefile table: Cruise, System, and Acq_Date.
Process_Date: 2013
Process_Step:
Process_Description:
The online links to the data were updated to reflect the new server hosting the data. Additionally, other small edits could be made to the metadata, such as modifying http to https where appropriate. The metadata date (but not the metadata creator) was edited to reflect the date of these changes.
Process_Date: 20170406
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: 13773
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
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2005-004-FA_chirpsht
Entity_Type_Definition:
Unique shot point navigation for chirp subbottom data collected by the U.S. Geological Survey during field activity 2005-004-FA in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005
Entity_Type_Definition_Source: U.S. Geological Survey
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: Line
Attribute_Definition:
Line and file number for corresponding seismic files. This information is used during data acquisition, processing and archival. Format: L1F1, where L = Line; 1 = Line number; F= File; 1 = File number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String up to 254 characters
Attribute:
Attribute_Label: Shot
Attribute_Definition: Number of unique seismic shot
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 6267
Attribute:
Attribute_Label: Easting
Attribute_Definition: Easting coordinate in UTM Zone 19 meters, WGS 84
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 307453.5
Range_Domain_Maximum: 309803.11
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Northing
Attribute_Definition: Northing coordinate in UTM Zone 19 meters, WGS 84
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4842479.28
Range_Domain_Maximum: 4844492.44
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Year
Attribute_Definition:
Calendar year in which data were collected (USGS Field activity 2005-004-FA; 2005)
Attribute_Definition_Source: U.S Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2005
Enumerated_Domain_Value_Definition: Calendar year in which data were collected.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: JD
Attribute_Definition: Julian Day during which sonar data were collected (2005)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 207
Enumerated_Domain_Value_Definition:
Julian day is the integer number representing the interval of time in days since January 1 of the year of collection.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: HR
Attribute_Definition: Hour of Day (24 hour day).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 13
Range_Domain_Maximum: 19
Attribute_Units_of_Measure: hour
Attribute:
Attribute_Label: MIN
Attribute_Definition: Minute of the hour.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 59
Attribute_Units_of_Measure: minute
Attribute:
Attribute_Label: SEC
Attribute_Definition: second of the minute.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 59
Attribute_Units_of_Measure: second
Attribute:
Attribute_Label: Cruise
Attribute_Definition:
Unique USGS field activity identification number in the format YYYY-NNN-FA where YYYY is the field activity year, NNN represents the number assigned to the field activity within that year, and FA stands for field activity.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String up to 50 characters
Attribute:
Attribute_Label: System
Attribute_Definition:
Chirp subbottom profiling system used to acquire seismic data during USGS field activity 2005-004-FA.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String up to 50 characters
Attribute:
Attribute_Label: Acq_Date
Attribute_Definition: Date of data acquisition. Format MM/DD/YYYY.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String up to 50 characters
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Resource_Description:
The file 2005-004-FA_chirpsht.zip contains the shapefile 2005-004-FA_chirpsht.shp and other files associated with the shapefile. In addition to the shapefile, the zip file also contains the data in CSV format (2005-004-FA_chirpsht.csv), the browse graphic (2005-004-FA_chirpsht.jpg) and the FGDC CSDGM metadata in the following formats: XML, HTML, FAQ and text.
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 9.0
Format_Specification: Esri point shapefile
Format_Information_Content:
Zip file containing shot point navigation for chirp subbottom profiler data from the Moultonborough Bay, Lake Winnipesaukee, New Hampshire survey area. This also includes associated metadata and *.csv file containing xy coordinates (geographic, WGS 84).
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 0.07
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data can be downloaded via the Internet.
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Version_Number: 1.0
Format_Specification: CSV (comma separated value) ASCII Format
Format_Information_Content:
Zip file containing shot point navigation for chirp subbottom profiler data from the Moultonborough Bay, Lake Winnipesaukee, New Hampshire survey area. This also includes associated metadata and *.csv file containing xy coordinates (geographic, WGS 84).
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 0.07
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data can be downloaded via the Internet.
Fees: none
Technical_Prerequisites:
This zip file contains data available in Esri shapefile format. The zip file also contains associated metadata. 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, ArcGIS Explorer, capable of displaying the data is available from Esri at www.esri.com.
Metadata_Reference_Information:
Metadata_Date: 20170406
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@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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