Sand auger and trench site locations collected in March/April and October 2014 from Assateague Island, Maryland (U.S. Geological Survey Field Activity Numbers [FAN] 2014-301-FA and 2014-322-FA)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Julie C. Bernier
Originator: Nicholas J. Zaremba
Originator: Cathryn J. Wheaton
Originator: Alisha M. Ellis
Originator: Marci E. Marot
Originator: Christopher G. Smith
Publication_Date: 2016
Title:
Sand auger and trench site locations collected in March/April and October 2014 from Assateague Island, Maryland (U.S. Geological Survey Field Activity Numbers [FAN] 2014-301-FA and 2014-322-FA)
Geospatial_Data_Presentation_Form: Tabular digital data, vector digital data
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Julie C. Bernier
Originator: Nicholas J. Zaremba
Originator: Cathryn J. Wheaton
Originator: Alisha M. Ellis
Originator: Marci E. Marot
Originator: Christopher G. Smith
Publication_Date: 2016
Title:
Sedimentologic characteristics of recent washover deposits from Assateague Island, Maryland
Geospatial_Data_Presentation_Form: Multimedia presentation
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 999
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.3133/ds999
Description:
Abstract:
The U.S. Geological Survey has a long history of responding to and documenting the impacts of storms along the Nation’s coasts and incorporating these data into storm impact and coastal change vulnerability assessments. Although physical changes caused by tropical and extratropical storms to the sandy beaches and dunes fronting barrier islands are generally well documented, the interaction between sandy shoreline erosion and overwash with the back-barrier wetland and estuarine environments is poorly constrained. The goal of the Barrier Island and Estuarine Wetland Physical Change Assessment project is to integrate a wetland-change assessment with existing coastal-change assessments for the adjacent sandy dunes and beaches, initially focusing on Assateague Island along the Maryland and Virginia coastline. Assateague Island was impacted by waves and storm surge associated with the passage of Hurricane Sandy in October 2012, causing erosion and overwash along the ocean-facing sandy shoreline as well as erosion and overwash deposition in the back-barrier and estuarine bay environments. Data Series 999 associated with this metadata record describes sediment data collected using sand augers in active overwash zones on Assateague Island in Maryland. Samples were collected by the U.S. Geological Survey (USGS) during two surveys in March/April and October 2014 (USGS Field Activity Numbers [FAN] 2014-301-FA and 2014-322-FA, respectively). The physical characteristics (for example, sediment texture or bedding structure) of and spatial differences among these deposits will provide information about overwash processes and sediment transport from the sandy barrier-island reaches to the back-barrier environments. Metrics derived from these data, such as mean grain size or deposit thicknesses, can be used to ground-truth remote sensing and geophysical data and can also be incorporated into sediment transport models. Data products, including sample location tables, descriptive core logs, core photographs and x-radiographs, the results of sediment grain-size analyses, and Geographic Information System (GIS) data files with accompanying formal Federal Geographic Data Committee (FGDC) metadata can be downloaded from http://pubs.usgs.gov/ds/999/ds999_data.html.
Purpose:
This zip archive includes the geographic locations, site elevations, site descriptions, and core and trench metrics in Microsoft Excel, Esri file geodatabase, and Kehyhole Markup Language (KML) format for sand auger sites collected from Assateague Island, Maryland in March/April and October 2014 (USGS FAN 2014-301-FA and 2014-322-FA).
Supplemental_Information:
USGS scientists collected sediment samples from Assateague Island and Chincoteague Bay during two surveys—one in the spring, March 26 to April 4, 2014, and one in the fall, October 21–30, 2014 (USGS FAN 2014-301-FA and 2014-322-FA, respectively). Samples were collected from a variety of depositional environments, including mainland wetlands, back-barrier wetlands, and sparsely vegetated to unvegetated washover deposits. Site locations were identified as 14CTB-XXX# where XXX is a consecutive number from 01 to 500 (01–200 for spring; 300–500 for fall) and # represents the type of sample collected. Data Series 999 describes sediment data from sand augers (sample type W) collected from active overwash zones on Assateague Island. Sand extents derived from pre- and post-storm aerial imagery were analyzed to identify areas of Assateague Island that were overwashed during Hurricane Sandy. Coring sites targeted three active overwash zones (transects 1, 3, and 4) and one control transect (transect 2). During the spring survey, a total of 19 cores were collected from 17 sites, including 8 cores from 7 back-barrier marsh sites. During the fall survey, all of the spring sand auger sites were re-cored, and additional cores were collected from overwash deposits at transects 1 and 4 located approximately 1 kilometer (km) north of the Verrazano Bridge Causeway on Sinepuxent Bay and at the Fox Hills Level north of Green Run Bay, respectively. The expanded sampling strategy targeted sites that had overwashed historically (since 1989) in addition to those sites that were overwashed during Hurricane Sandy. In October, a total of 81 core sections were collected from 69 sites. All sample locations were recorded at the time of collection with a Garmin GPSMAP 76S handheld Global Positioning System (GPS) receiver. Position and elevation data were also recorded with an Ashtech Differential Global Positioning System (DGPS) receiver and geodetic antenna, which provided more accurate horizontal and vertical control than handheld GPS systems. A stop-and-go rapid-static survey technique was used, with a static occupation duration of 5 minutes at each sample site. DGPS data were recorded concurrently throughout the survey at multiple National Park Service (NPS) benchmarks using a similar instrument combination. Cores were collected using an AMS sand/loose sediment soil probe, which can accommodate a 2.54-centimeter(cm) (1-inch) diameter by approximately 60-cm (2-feet) plastic sleeve. In addition to cores collected from the ground surface, during the October survey a second core was collected at some sites from a trench dug to just above the groundwater table. The purpose of collecting a second, deeper, core was to try to penetrate organic-rich deposits representing the pre-overwash surface below the washover sediments. Cores from sites where a second core was collected were identified as 14CTB-XXXW-1 (surface core) and 14CTB-XXXW-2. After extraction, each core was capped, sealed, and labeled with transect location, core number, and orientation. The cores were transported to the USGS St. Petersburg Coastal and Marine Science Center (SPCMSC) for processing and analysis. During the October survey, shallow trenches were also dug at each of the transect 1 and 4 washover sites for the purpose of supplementing washover thickness and sedimentologic data from the sand augers with additional sediment samples from targeted strata. Trench depths, however, were limited by a shallow water table, and in most cases the trenches back filled or collapsed before the pre-overwash surface could be identified. The site information, along with core and trench descriptions, is available from http://pubs.usgs.gov/ds/999/ds999_data.html.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20140326
Ending_Date: 20141030
Currentness_Reference: Ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -75.19903
East_Bounding_Coordinate: -75.13172
North_Bounding_Coordinate: 38.10989
South_Bounding_Coordinate: 38.25004
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:8afa22c0-14e0-49ce-8ebe-73b24eddab7b
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: overwash
Theme_Keyword: sediment
Theme_Keyword: sand auger
Theme_Keyword: trench
Theme_Keyword: grain size
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Maryland
Place_Keyword: Assateague Island
Access_Constraints: None
Use_Constraints:
The U.S. Geological Survey requests that it be acknowledged as the originator of this dataset in any future products or research derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Julie C. Bernier
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: jbernier@usgs.gov
Data_Set_Credit:
U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center
Native_Data_Set_Environment:
Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601XXXXX) Service Pack 1; Microsoft Excel Version 2010
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The positional accuracy of the sample locations is determined by the accuracy of the raw position data recorded by the GPS antenna during data collection. DGPS coordinates were obtained using post-processing software packages (National Geodetic Survey On-Line Positioning User Service, OPUS, and Novatel Waypoint Product Group GrafNav).
Logical_Consistency_Report:
Position and elevation data at each sample site were recorded with an Ashtech DGPS receiver and geodetic antenna. DGPS data were recorded concurrently throughout the survey at multiple NPS benchmarks using a similar instrument combination. The final sample locations, including elevation, are the post-processed DGPS coordinates based on processing to the nearest base station; baseline distances for all sand auger sites were less than about 6 km.
Completeness_Report:
This dataset includes the locations of 70 sand auger and 38 trench sites collected from Assateague Island, Maryland in March/April and October 2014 (USGS FAN 2014-301-FA and 2014-322-FA).
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
All static GPS base station sessions were processed through the On-Line Positioning User Service (OPUS) maintained by the National Geodetic Survey (NGS). The OPUS base-station solutions were entered into a spreadsheet to compute a final, time-weighted positional coordinate (latitude, longitude, and ellipsoid height) for each base station. Base-station positional error was calculated as the absolute value of the final position minus the session position value. The maximum horizontal error of the base station coordinates used for post-processing the sample locations was 0.00005 seconds latitude and 0.00015 seconds longitude.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
All static GPS base station sessions were processed through OPUS. The OPUS base-station solutions were entered into a spreadsheet to compute a final, time-weighted positional coordinate (latitude, longitude, and ellipsoid height) for each base station. Base-station positional error for each GPS session was calculated as the absolute value of the final position minus the session position value. For this survey, the maximum standard deviation of the base station ellipsoid height was 0.009 m and the maximum vertical error for the base station was +/- 0.016 m. The time-weighted average positions were compared with the NPS network control numbers for each base station; the time-weighted elevations for each base station occupation were within 2 standard deviations of the NPS control elevations. The NPS control coordinates were used for subsequent post processing.
Lineage:
Process_Step:
Process_Description:
USGS scientists collected sediment samples from sand augers (sample type W) from three active overwash zones (transects 1, 3, and 4) and one control transect (transect 2) on Assateague Island during two surveys—one in the spring, March 26 to April 4, 2014, and one in the fall, October 21–30, 2014 (USGS FAN 2014-301-FA and 2014-322-FA, respectively). During the spring survey, at total of 19 cores were collected from 17 sites, including 8 cores from 7 back-barrier marsh sites. During the fall survey, all of the spring sand auger sites were re-cored, and additional cores were collected from overwash deposits at transects 1 and 4; in October, a total of 81 core sections were collected from 69 sites. Cores were collected using an AMS sand/loose sediment soil probe, which can accommodate a 2.54-centimeter(cm) (1-inch) diameter by approximately 60-cm (2-feet) plastic sleeve. In addition to cores collected from the ground surface, during the October survey a second core was collected at some sites from a trench dug to just above the groundwater table. After extraction, each core was capped, sealed, and labeled with transect location, core number, and orientation. The cores were transported to the USGS SPCMSC for processing and analysis.
Process_Date: 2014
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Julie C. Bernier
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: jbernier@usgs.gov
Process_Step:
Process_Description:
GPS base stations were erected on multiple NPS benchmarks located on the back-barrier side of Assateague Island. An Ashtech Z-Xtreme DGPS receiver recorded the 12-channel full-carrier-phase positioning signals (L1/L2) from satellites via a Thales choke-ring antenna at the base station. A similar instrument combination (Ashtech Z-Xtreme receiver and Ashtech geodetic antenna) was used for the rover GPS. The base receiver and the rover receiver record their positions concurrently at 1- to 5-second (s) recording intervals throughout the survey. A stop-and-go rapid-static survey technique was used, with a static occupation duration of 5 minutes at each sample site.
Process_Date: 2014
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Julie C. Bernier
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: jbernier@usgs.gov
Process_Step:
Process_Description:
The NPS control coordinates of the GPS base stations were imported into GrafNav, versions 8.4 (spring data) or 8.5 (fall data) (Novatel Waypoint Product Group) and the data from the rover GPS were post-processed to the concurrent GPS session data from the nearest base station; baseline distances for all sand auger sites were less than about 6 km. The GPS data were acquired and processed in the World Geodetic System of 1984 (WGS84) (G1150) geodetic datum.
Process_Date: 2014
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Julie C. Bernier
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: jbernier@usgs.gov
Process_Step:
Process_Description:
Using the NGS transformation software packages HTDP (http://www.ngs.noaa.gov/TOOLS/Htdp/Htdp.shtml), version 3.2.3 and VDatum, version 3.2 (http://vdatum.noaa.gov/), the sample locations were transformed from the GPS acquisition datum (WGS84) to the North American Datum of 1983 (NAD 83), Universal Transverse Mercator (UTM) Zone 18 north (18N) reference frame and the North American Vertical Datum of 1988 (NAVD 88) orthometric elevation using the NGS geoid model of 2012A (GEOID 12A).
Process_Date: 2014
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Julie C. Bernier
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: jbernier@usgs.gov
Process_Step:
Process_Description:
At the SPCMSC sediment laboratory, the cores were split lengthwise, x-rayed, photographed, described macroscopically using standard sediment-logging methods, and subsampled at 1.5- to 2-cm intervals for grain-size analysis. Sample frequencies varied between cores depending on observed sedimentologic changes. Some cores were sampled at high frequencies to characterize the washover deposits, whereas in other cores the sampling strategy was more targeted.
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Julie C. Bernier
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: jbernier@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20201013
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: Point
Point_and_Vector_Object_Count: 108
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: 87.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001
Ordinate_Resolution: 0.001
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.001
Altitude_Distance_Units: Meters
Altitude_Encoding_Method: Attribute values
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2014-301-FA_SandAugers_FINAL.xlsx
Entity_Type_Definition:
Microsoft Excel workbook defining the site locations and selected metrics for sand augers collected in March/April 2014 from Assateague Island, Maryland (USGS FAN 2014-301-FA).
Entity_Type_Definition_Source: USGS
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2014-322-FA_SandAugers_FINAL.xlsx
Entity_Type_Definition:
Microsoft Excel workbook defining the site locations and selected metrics for sand augers and trenches collected in October 2014 from Assateague Island, Maryland (USGS FAN 2014-322-FA.)
Entity_Type_Definition_Source: USGS
Detailed_Description:
Entity_Type:
Entity_Type_Label: 14CTB_SandAugers_sites.gdb
Entity_Type_Definition:
Esri file geodatabase containing 3 vector point datasets defining the site locations and selected metrics for March/April 2014 sand augers and October 2014 sand augers and trenches (USGS FAN 2014-301-FA and 2014-322-FA).
Entity_Type_Definition_Source: USGS
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2014-301-FA_SandAugers_FINAL.kml
Entity_Type_Definition:
Keyhole Markup Language (KML) file defining the site locations and selected metrics for March/April 2014 sand augers (U.S. Geological Survey Field Activity Number [FAN] 2014-301-FA).
Entity_Type_Definition_Source: USGS
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2014-322-FA_SandAugers_FINAL.kml
Entity_Type_Definition:
Keyhole Markup Language (KML) file defining the site locations and selected metrics for October 2014 sand augers (USGS FAN 2014-322-FA).
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: SITE_ID
Attribute_Definition: Site identification number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: NAD83_Lat
Attribute_Definition: Latitude of site location, in decimal degrees (NAD 83)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 38.10989
Range_Domain_Maximum: 38.25004
Attribute_Units_of_Measure: Decimal degrees
Attribute_Measurement_Resolution: 0.00001
Attribute:
Attribute_Label: NAD83_Lon
Attribute_Definition: Longitude of site location, in decimal degrees (NAD 83)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -75.19900
Range_Domain_Maximum: -75.13172
Attribute_Units_of_Measure: Decimal degrees
Attribute_Measurement_Resolution: 0.00001
Attribute:
Attribute_Label: NAD83_X
Attribute_Definition:
X-coordinate (easting) of site location, in meters (NAD 83, UTM zone 18N)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 482552.304
Range_Domain_Maximum: 488474.577
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: NAD83_Y
Attribute_Definition:
Y-coordinate (northing) of site location, in meters (NAD 83, UTM zone 18N)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4218024.470
Range_Domain_Maximum: 4233566.382
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: NAD83_Ell
Attribute_Definition: Ellipsoid height of site location, in meters (NAD 83)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -36.317
Range_Domain_Maximum: -33.740
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: NAVD88_G12A_m
Attribute_Definition:
Elevation (orthometric height) of site location, in meters (NAD 83, GEOID 12A)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.003
Range_Domain_Maximum: 2.409
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: SITE_2014-301-FA
Attribute_Definition: March site identification number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: CORE_ID_1
Attribute_Definition:
Core identification number (surface core, if 2 cores were collected at that site)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: LENGTH_1_cm
Attribute_Definition:
Core length, in centimeters (length surface core, if 2 cores were collected at that site)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 9
Range_Domain_Maximum: 58
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 0.5
Attribute:
Attribute_Label: CORE_ID_2
Attribute_Definition: Core identification number (second core)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: LENGTH_2_cm
Attribute_Definition: Core length, in centimeters (second core)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 31.5
Range_Domain_Maximum: 58.5
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 0.5
Attribute:
Attribute_Label: D_MARSH_cm
Attribute_Definition:
Depth to marsh surface, in centimeters; depth = 0 indicates core collected from extant marsh
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 97
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 0.01
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: ELEV_MARSH_m
Attribute_Definition: Elevation of marsh surface, in meters (NAD83, GEOID 12A)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.081
Range_Domain_Maximum: 0.832
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: D_TRENCH_m
Attribute_Definition: Depth of trench, in centimeters
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 45
Range_Domain_Maximum: 70
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 1
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: D_WATER_cm
Attribute_Definition: Depth to water table in trench, in centimeters
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 17
Range_Domain_Maximum: 84
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 1
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: LOCATION
Attribute_Definition: Site location (transect number)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: COMMENT
Attribute_Definition: Additional site or core information
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Attribute:
Attribute_Label: INITIAL_OVERWASH
Attribute_Definition: Storm name or year of first observed overwash at site
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center
Contact_Person: Julie C. Bernier
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: jbernier@usgs.gov
Resource_Description: Downloadable data
Distribution_Liability:
This publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Compressed (zip) archive
Format_Version_Date: 2015
Format_Specification: Vector digital data, tabular digital data
Format_Information_Content:
This zip archive includes the geographic locations, site elevations, site descriptions, and core and trench metrics in Microsoft Excel, Esri file geodatabase, and Kehyhole Markup Language (KML) format for sand auger sites collected from Assateague Island, Maryland in March/April and October 2014 (USGS FAN 2014-301-FA and 2014-322-FA).
File_Decompression_Technique: Unzip
Transfer_Size: 0.19
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Fees: None, if obtained online
Technical_Prerequisites:
The sample locations table was created in Microsoft Excel 2010 and can be opened using Microsoft Excel 2007 or higher; these data may also be viewed using the free Microsoft Excel Viewer (http://office.microsoft.com/). The sample locations are also provided as GIS data files in Esri file geodatabase (.gdb) and Keyhole Markup Language (KML) format; these files can be opened using the free ArcGIS Explorer or Google Earth GIS viewers.
Metadata_Reference_Information:
Metadata_Date: 20201013
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Julie C. Bernier
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: jbernier@usgs.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: None
Metadata_Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please acknowledge the U.S. Geological Survey as the originator of this dataset.
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None

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