Point Shapefile of Electrical Conductance Geoprobe Locations Collected in August, 2005 in the Nauset Marsh Area of Cape Cod, Massachusetts

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: John F. Bratton

Publication_Date: 2008

Title:

Point Shapefile of Electrical Conductance Geoprobe Locations Collected in August, 2005 in the Nauset Marsh Area of Cape Cod, Massachusetts

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2006-1169

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage:

<http://pubs.usgs.gov/of/2006/1169/data/gis/geoprobe/geoprobeloc_2005.zip>

Online_Linkage: <http://pubs.usgs.gov/of/2006/1169/htmldocs/catalog.htm>

Larger_Work_Citation:

Citation_Information:

Originator: VeeAnn A. Cross

Originator: John F. Bratton

Originator: John Crusius

Originator: John A. Colman

Originator: Timothy D. McCobb

Publication_Date: 2008

Title: Submarine Hydrogeological Data from Cape Cod National Seashore

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2006-1169

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <http://pubs.usgs.gov/of/2006/1169/>

Description:

Abstract:

In order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean, geophysical surveys, geophysical probing, submarine groundwater sampling, and sediment coring were conducted by U.S. Geological Survey (USGS) scientists at Cape Cod National Seashore (CCNS) from 2004 through 2006. Coastal resource managers at CCNS and elsewhere are concerned about nutrients that are entering coastal waters via submarine groundwater discharge, which are contributing to eutrophication and harmful algal blooms. The research carried out as part of the study described here was designed, in part, to help refine assumptions required by earlier versions of models about the nature of submarine groundwater flow and discharge at CCNS. This study was conducted in four phases, with a variety of field techniques and equipment employed in each phase. Phase 1 consisted of continuous resistivity profiling (CRP) surveys of the entire study area conducted in 2004. Phase 2 consisted of CRP ground-truthing via resistivity probe measurements and submarine groundwater sampling from hydraulically-drive piezometers using a barge in the Salt Pond/Nauset Marsh area in 2005. Phase 3 consisted of supplemental detailed CRP surveys in the Salt Pond/Nauset Marsh area in 2006. Finally, Phase 4 consisted of sediment coring and porewater extraction in the Salt Pond/Nauset Marsh area later in 2006 to supplement the 2005 sampling.

Purpose:

This shapefile is used to provide the locations where electrical conductance (EC) probe profiling measurements were taken within the Cape Cod National Seashore in 2005.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20050822

Ending_Date: 20050823

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -69.971573

East_Bounding_Coordinate: -69.965783

North_Bounding_Coordinate: 41.835978

South_Bounding_Coordinate: 41.832088

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: CMGP

Theme_Keyword: Coastal and Marine Geology Program

Theme_Keyword: ground-water

Theme_Keyword: marine resistivity

Theme_Keyword: OF 2006-1169

Theme_Keyword: Open-File Report

Theme_Keyword: point

Theme_Keyword: shapefile

Theme_Keyword: submarine ground-water

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: USGS

Theme_Keyword: Woods Hole Science Center

Theme_Keyword: electrical conductance

Theme_Keyword: WHSC field activity serial number 05035

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: environment

Theme_Keyword: geoscientificInformation

Theme_Keyword: inlandWaters

Theme_Keyword: location

Theme_Keyword: oceans

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: Atlantic Ocean

Place_Keyword: Cape Cod

Place_Keyword: Massachusetts

Place_Keyword: North America

Place_Keyword: United States

Place_Keyword: Salt Pond

Place_Keyword: Nauset Marsh

Place_Keyword: Cape Cod National Seashore

Access_Constraints: None.

Use_Constraints:

The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: John F. Bratton

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700 x2254

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: jbratton@usgs.gov

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780

Data_Quality_Information:

Logical_Consistency_Report:

No additional checks for topological consistency other than visual inspection were performed on the data.

Completeness_Report:

This dataset is complete inasmuch as the location for all the geprobe locations are represented.

Lineage:

Process_Step:

Process_Description:

The GPS location and various other information was recorded by the chief scientist in a log book for each drilling site.

Process_Date: 2005

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: John F. Bratton

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700 x2254

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: jbratton@usgs.gov

Process_Step:

Process_Description:

This recorded information was reformatted and imported from a comma delimited text file and converted to a shapefile using ArcGIS 9.1. The original recorded positions were based on the NAD27 datum.

Source_Used_Citation_Abbreviation: drill_locations.txt

Process_Date: 2006

Source_Produced_Citation_Abbreviation: drill_locsnad27.shp

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: 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:

The shapefile was projected to the NAD83 datum using ArcGIS 9.1.

Source_Used_Citation_Abbreviation: drill_locsnad27.shp

Process_Date: 2006

Source_Produced_Citation_Abbreviation: geoprobeloc_2005.shp

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: 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:

The new latitude and longitude values, based on NAD83, were added to the shapefile using XTools Pro version 4.0 within ArcGIS 9.1.

Source_Used_Citation_Abbreviation: geoprobeloc_2005.shp

Process_Date: 2007

Source_Produced_Citation_Abbreviation: geoprobeloc_2005.shp

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: 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

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: 5

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000000

Longitude_Resolution: 0.000000

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: geoprobeloc_2005

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: SITE

Attribute_Definition: Name assigned to the geoprobe drill location.

Attribute_Definition_Source: Chief scientist.

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: LATITUDE

Attribute_Definition: Latitude position of the data point referenced to NAD27.

Attribute_Definition_Source: Recorded value as acquired by a GPS.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 41.83056

Range_Domain_Maximum: 41.83587

Attribute_Units_of_Measure: decimal degrees

Attribute:

Attribute_Label: LONGITUDE

Attribute_Definition: Longitude position of the data point referenced to NAD27.

Attribute_Definition_Source: Recorded value as acquired by a GPS.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -69.97211

Range_Domain_Maximum: -69.96347

Attribute_Units_of_Measure: decimal degrees

Attribute:

Attribute_Label: ERROR

Attribute_Definition: Approximate navigational location error in meters.

Attribute_Definition_Source: Field scientist.

Attribute_Domain_Values:

Unrepresentable_Domain: numbers in character field

Attribute:

Attribute_Label: COMMENT

Attribute_Definition: Brief description of work at drilling location.

Attribute_Definition_Source: Field scientist.

Attribute_Domain_Values:

Unrepresentable_Domain: character set

Attribute:

Attribute_Label: COLDATE

Attribute_Definition: Date of drilling.

Attribute_Definition_Source: Field scientist.

Attribute_Domain_Values:

Unrepresentable_Domain: Date character set.

Attribute:

Attribute_Label: long_nad83

Attribute_Definition: Longitude position of the data point referenced to NAD83.

Attribute_Definition_Source: Calculated value.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -69.971573

Range_Domain_Maximum: -69.965783

Attribute_Units_of_Measure: decimal degrees

Attribute:

Attribute_Label: lat_nad83

Attribute_Definition: Latitude position of the data point referenced to NAD83.

Attribute_Definition_Source: Calculated value.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 41.832088

Range_Domain_Maximum: 41.835978

Attribute_Units_of_Measure: decimal degrees

Overview_Description:

Entity_and_Attribute_Overview:

A modified version of Geoprobe System's Direct Image Electrical Conductivity tool was used to make conductivity measurements in the sediment below the sediment water interface. A Wenner-array probe (Geoprobe SC200) was attached to a 25 mm-diameter probe rod. The probe was connected to the surface floating barge by a water-tight shielded cable. This probe consists of four contact rings; one pair carries a known current and another pair measures the resulting voltage through the formation. The probe and probe rod were advanced through the sediment by hand (when possible) or by automatic vibratory hammer at 30 cm intervals. Multiple measurements were made at each interval, and the average EC value was recorded.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: John F. Bratton

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Contact_Voice_Telephone: (508) 548-8700 x2254

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: jbratton@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: SHP

File_Decompression_Technique: WinZip

Transfer_Size: 21 KB

Fees: None.

Technical_Prerequisites:

These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.

Metadata_Reference_Information:

Metadata_Date: 20080225

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: 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