Survey tracklines of swath bathymetry collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri polyline shapefile, 2005-004-FA_BATHYTRK.SHP)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2014
Title:
Survey tracklines of swath bathymetry collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, Esri polyline shapefile, 2005-004-FA_BATHYTRK.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 approximately 37 kilometers of bathymetric trackline data collected with an interferometric sonar (Systems Engineering and Assessment Ltd. (SEA) 2000 series) 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 bathymetric trackline data are used to show where bathymetric data were collected, and to provide an archive of the these 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: -71.390530
East_Bounding_Coordinate: -71.361113
North_Bounding_Coordinate: 43.728563
South_Bounding_Coordinate: 43.710474
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: bathymetry
Theme_Keyword: swath bathymetry
Theme_Keyword: interferometry
Theme_Keyword: SEA Submetrix 2000 series
Theme_Keyword: polyline shapefile
Theme_Keyword: tracklines
Theme_Keyword: survey line
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 survey tracklines of swath bathymetry 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: Jonathan Beaudoin
Publication_Date: 2002
Title: Hitchhiker's Guide to Swathed...
Edition: 1.0
Geospatial_Data_Presentation_Form: online manual
Series_Information:
Series_Name: Online Manual
Issue_Identification:
Publication_Information:
Publication_Place: Fredericton, New Brunswick, Canada
Publisher: University of New Brunswick Ocean Mapping Group
Online_Linkage:
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: All attributes were checked in a consistent manner.
Logical_Consistency_Report:
All bathymetric data were collected during USGS cruise 2005-004-FA using a SEA 2000 series 234-kHz swath bathymetric system and an Octopus F180R Attitude and Positioning System. Quality control was conducted during processing of the data. Any spurious data or artifacts were removed or minimized.
Completeness_Report:
This shapefile contains lines 43 - 112 of swath bathymetric data collected on JD 207(07/26/2005) during USGS field activity 2005-004-FA. Lines 1 - 42 were collected during JD206 and completely covered the survey area, however the sidescan-sonar system (Edgetech 4200) failed during survey operations. The backup sidescan-sonar system (Klein 3000 sidescan-sonar) was configured during JD207. As such, the survey area was resurveyed on JD 207 and those data were used for generating bathymetric surfaces and interpretations.
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. The forward, or primary, Coda Octopus F180R Attitude and Positioning system antenna was used to acquire data and transmit via a network connection to the SEA RTS2000 data collection software. The F180R Attitude and Positioning system uses 2 L1 antennas for position and heading and an Inertial Measurement Unit (IMU) for motion sensing. The F180R IMU is mounted on the rigid bow mount used to deploy the SEA Submetrix 2000 Series bathymetric system, and is located directly above the SEA Submetrix 2000 Series transducers. The F180R antennas are mounted on a rigid horizontal pole, 3 meters above the F180R IMU, offset in a forward/aft configuration. These offsets were corrected within the RTS2000 acquisition software.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: Raw Bathymetric 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 of field activity
Source_Citation_Abbreviation: none
Source_Contribution:
Swath-bathymetric and acoustic-backscatter data were acquired with a SEA, Ltd., Submetrix 2000 Series interferometric sonar operating at a 234-kHz frequency. The SEA Submetrix 2000 Series transducers were mounted at the bow of the USGS R/V Rafael. Approximately 37 km of swath bathymetric data were collected.
SEA RTS2000 acquisition software (version year 2005) was used to digitally log the bathymetric data at a maximum 50-meter range (100-meter swath width) and 2048 samples per ping in the SEA SXR format. In shallow water areas, the swath width did not achieve the full 50-meter range, but varied from roughly 5x water depth to the maximum 50-meter range (i.e. swath width varied from approximately 15 meters to 100 meters depending on water depth). Data collection parameters are saved as a RTS2000 session file in SEA SXS format.
An Octopus F180R Attitude and Positioning system (see: http://www.codaoctopus.com/motion/f180/index.asp) recorded ship motion (heave, pitch, roll, and yaw). These data were transmitted via network connection to the RTS2000 data acquisition software. The Octopus F180R Inertial Measurement Unit (IMU) was mounted directly above the SEA Submetrix 2000 Series transducers, to minimize lever arm offsets that can lead to positioning errors. The F180R uses two L1 antennas for position and heading accuracy. The antennas are mounted on a rigid horizontal pole, 3 meters above the F180R IMU, with a horizontal separation of 1 meter and are offset from the IMU in a forward/aft configuration. The forward offset of the primary antenna from the IMU is 0.5 meters, with no port/starboard offset.
Eight sound-velocity profiles were acquired during survey operations at roughly 1 to 3 hour intervals using an Applied Microsystems SV Plus Velocimeter (Applied Microsystems, 2008). Sound-velocity profiles 1 - 3 were collected during JD 206 for lines 1 - 42. Sound-velocity profiles 4 - 8 were collected during JD207 for lines 43 - 112. Only lines 43 - 112 were used to generate the final bathymetric grid.
Vertical accuracy of the raw data based on system specifications may approximate 1% of water depth, 0.01 to 0.15 meters within the survey area. However, overall vertical accuracies on the order of 0.5 meters are assumed based on the following considerations: WAAS navigation vertical accuracies; the Coda Octopus F180 Attitude and Positioning system, used to correct for vessel roll, pitch, heave, and yaw, has a theoretical vertical accuracy of a few mm; refraction artifacts were minimized by acquiring a range of sound velocity profiles with a hand-casted Applied MicroSystems SV Plus sound velocimeter during the survey. Changes in ship draft due to water and fuel usage were not considered. Vertical resolution is on the order of 0.1 meters.
Process_Step:
Process_Description:
Converting Raw (SXR) to Field-Processed (SXP) Files:
Raw SXR bathymetry data were acquired with the SEA RTS2000 (version year 2005) software and used to generate field-processed SEA RTS2000 SXP files. The following information was stored within the RTS2000 session files and applied to the raw bathymetric soundings: eight sound velocity profiles to minimize refraction artifacts due to fluctuations from the speed of sound in the water column, roll offsets calculated during pre-survey patch test, draft of the transducer below the water line, and the measured angles and relative positions of the swath bathymetric transducers. The RTS2000 software applies the pitch, roll, heave, yaw and heading data supplied by the F180R IMU, to compensate depth solutions across the swath for any ship motion. Some bathymetric filtering was applied during acquisition, however final processing, filtering and editing were completed with The University of New Brunswick, Ocean Mapping Group (OMG) SwathEd software suite (see process step 2).
Jane F. Denny performed this and all subsequent process steps.
Process_Date: 2005
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:
Generating Bathymetric Grid: University of New Brunswick, Ocean Mapping Group (OMG) SwathEd Multibeam Processing Software (Beaudoin, 2002)
Bathymetric data (raw SXR files), sound velocity profiles, and system configuration information (antenna offsets, transducer offsets, water level, attitude and positioning) were used to generate a composite bathymetric grid using the University of New Brunswick's Ocean Mapping Group (OMG) SwathEd multibeam processing software. The raw Submetrix 2000 Series data were "unraveled" and reformatted into the OMG format. This process creates several files on disk: a) bathymetric soundings (*.merged) b) raw backscatter (*.ss) c) navigation (*.ascii_nav and *.nav) d) parameter files describing the configuration of the system (i.e. offsets between motion reference unit and GPS antenna, etc.). This process also incorporates the sound velocity profiles in order to properly account for any refraction due to fluctuations in the speed of sound within the water column.
Process_Date: 2005
Process_Step:
Process_Description:
Reformatting Navigation:
A C-shell script was used to reformat the ASCII text files (output of the unravel) to include: easting, northing, line number, Julian day, hour, minute, second, longitude, latitude, and concatenate the line files into one comma-delimited ASCII text file.
Process_Date: 2005
Process_Step:
Process_Description:
The text file (*.csv) was imported into Esri ArcMap 9.0 using Tools - Add XY Data and converted to an event theme. The event theme was then saved to a point shapefile and the projection was defined as Geographic Coordinate System, WGS84 (GCS_WGS_1984). The point shapefile was visually inspected for spurious data points and these data points were manually deleted.
Process_Date: 2005
Process_Step:
Process_Description:
The point shapefile containing 10-second navigation was used as an input for a VACExtras (version 1.8), a VB collection of tools developed by VeeAnn Cross (USGS-WHSC), which converts point data to a new polyline shapefile, based on the order of records contained within one attribute field. The line number field was used to define the point grouping to create a line.
Process_Date: 2005
Process_Step:
Process_Description:
System, Freq, Cruise ID, Acq_Date, and Jday fields were added to the attribute table within ArcMap 9.0. The length of each line segment was calculated and included in a new attribute field (Length) using XTools Pro for ArcGIS desktop (version 5.3.0), specifying UTM Zone 19 N, WGS84 - meters.
Process_Date: 2005
Process_Step:
Process_Description:
ArcGIS 9.3, Xtools 7.1.0 (Build 738) was used to convert polyines to points using Xtools, Feature Conversion, Convert Features to Points, generating a new shapefile. Xtools was then used to add X,Y coordinates to the new shapefile table, using Xtools, Table Operations, Add X,Y,Z coordinates. The table was then exported to a text file using, Xtools, Table Operations, Export table to txt. The txt file was saved as a *.csv. The *csv can then be used outside of the ArcGIS 9.3 environment to generate trackline data, if neeed.
Process_Date: 2014
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: String
Point_and_Vector_Object_Count: 70
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_bathytrk
Entity_Type_Definition:
Swath bathymetric survey lines collected by the U.S. Geological Survey 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: Length
Attribute_Definition: length of line segment in UTM, Zone 19N, WGS84, meters
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 26.45
Range_Domain_Maximum: 4764.76
Attribute:
Attribute_Label: Line
Attribute_Definition:
Line and file number for corresponding bathymetric 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 50 characters
Attribute:
Attribute_Label: System
Attribute_Definition:
Swath Bathymetric acquisition system used to collect bathymetric data
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String up to 50 characters
Attribute:
Attribute_Label: Freq
Attribute_Definition:
Frequency of the sonar system used to acquire the data. Frequency is listed in kilohertz (kHz).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String up to 50 characters
Attribute:
Attribute_Label: Cruise_ID
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: 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 20 characters
Attribute:
Attribute_Label: Jday
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
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_bathytrk.zip contains the shapefile 2005-004-FA_bathytrk.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_bathytrk.csv), the browse graphic (2005-004-FA_bathytrk.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 polyline shapefile
Format_Information_Content:
Zip file containing the swath bathymetric trackline data from the Moultonborough Bay, Lake Winnipesaukee, New Hampshire survey area. This also includes associated metadata and a *.csv file with XY coordinates (geographic, WGS 84).
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 0.05
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 the swath bathymetric trackline data from the Moultonborough Bay, Lake Winnipesaukee, New Hampshire survey area. This also includes associated metadata and a *.csv file with XY coordinates (geographic, WGS 84).
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 0.05
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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