FIIS_Shorelines_Oct2012_Oct2017.shp: Fire Island, NY pre- and post-storm shoreline data from October 2012 to October 2017

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20180510
Title:
FIIS_Shorelines_Oct2012_Oct2017.shp: Fire Island, NY pre- and post-storm shoreline data from October 2012 to October 2017
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/P9ANYQ8G
Publication_Information:
Publication_Place: St. Petersburg, Florida
Publisher:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Online_Linkage: https://doi.org/10.5066/P9ANYQ8G
Larger_Work_Citation:
Citation_Information:
Originator: Rachel Hehre Henderson
Originator: Cheryl J. Hapke
Originator: Owen T. Brenner
Originator: B.J. Reynolds
Publication_Date: 20150430
Title:
Hurricane Sandy Beach Response and Recovery at Fire Island, New York: Shoreline and Beach Profile Data, October 2012 to October 2014
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: DS 931
Publication_Information:
Publication_Place: St. Petersburg, Florida
Publisher:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Online_Linkage: https://doi.org/10.3133/ds931
Description:
Abstract:
Hurricane Sandy made U.S. landfall, coincident with astronomically high tides, near Atlantic City, New Jersey, on October 29, 2012. The storm, the largest on historical record in the Atlantic basin, affected an extensive area of the east coast of the United States. The highest waves and storm surge were focused along the heavily populated New York and New Jersey coasts. At the height of the storm, a record significant wave height of 9.6 meters (m) was recorded at the wave buoy offshore of Fire Island, New York (fig. 1, inset). During the storm, an overwash channel opened a breach in the location of Old Inlet, in the Otis Pike High Dunes Wilderness area. This breach is now referred to as the Wilderness Breach (fig. 1). Fire Island, New York is the site of a long term coastal morphologic change and processes project conducted by the U.S. Geological Survey (USGS). One of the objectives of the project was to understand the morphologic evolution of the barrier system on a variety of time scales (days - years - decades - centuries). In response to Hurricane Sandy, this effort continued with the intention of resolving storm impacts, post-storm beach response, and recovery. The day before Hurricane Sandy made landfall (October 28, 2012), a USGS field team conducted differential global positioning system (DGPS) surveys at Fire Island to quantify the pre-storm morphologic state of the beach and dunes. The area was re-surveyed after the storm, as soon as access to the island was possible. In order to fully capture the recovery of the barrier system, the USGS Hurricane Sandy Supplemental Fire Island Study was established to include collection in the weeks, months, and years following the storm. As part of the USGS Hurricane Sandy Supplemental Fire Island Study, the beach is monitored periodically to enable better understanding of post-Hurricane Sandy recovery. The alongshore state of the beach is recorded using a DGPS to collect data around the mean high water (MHW; 0.46 meters, North American Vertical Datum of 1988 [NAVD88]) to derive a shoreline, and the cross-shore response and recovery are measured along a series of 15 profiles. Monitoring continued in the weeks following Hurricane Sandy with additional monthly data collection through April 2013 and repeat surveys every 2-3 months thereafter until October 2014. Bi-annual surveys have been collected through September 2016. Beginning in October 2014 the USGS also began collecting shoreline data at the Wilderness Breach. See below for survey collection dates for all data types. For along shore shoreline data, the MHW shoreline (0.46 m [NAVD88]; Weber and others, 2005) is derived from the field data using an interpolation method that creates a series of equally-spaced cross-shore profiles between the two survey lines that flank the MHW contour. The foreshore slope is assumed to be uniform on each profile. Using this slope and the two surveyed positions on each cross-shore profile, a simple geometric calculation is done to find where each profile line intersects the MHW contour. This shapefile, FIIS_Shorelines_Oct2012_Oct2017.shp, consists of Fire Island, NY pre- and post-storm shoreline data collected from October 2012 to October 2017. This dataset contains 25 Mean High Water (MHW) shorelines for Fire Island, NY (A total of 23 full shorelines, where two shorelines were collected over multiple days). Prior to and following Hurricane Sandy in October 2012, continuous alongshore DGPS data were collected to assess the positional changes of the shoreline (MHW - 0.46 m NAVD88) and the upper portion of the beach. In the five years following Sandy, 24 surveys were conducted collecting data along shore-parallel tracks to capture the base of the dune, the mid-beach, and the upper and lower foreshore. The alongshore tracks extend from just west of Fire Island Lighthouse to the western flank of the storm-induced breach in the location of Old Inlet, in the Otis Pike High Dunes Wilderness area. Oct 28 2012 (MHW shoreline/Cross-shore data) Nov 01 2012 (MHW shoreline/Cross-shore data) Nov 04 2012 (Cross-shore data only) Dec 01 2012 (MHW shoreline/Cross-shore data) Dec 12 2012 (MHW shoreline/Cross-shore data) Jan 10 2013 (MHW shoreline/Cross-shore data) Feb 13 2013 (MHW shoreline/Cross-shore data) Mar 13 2013 (MHW shoreline/Cross-shore data) Apr 09 2013 (MHW shoreline/Cross-shore data) Jun 24 2013 (MHW shoreline/Cross-shore data) Sep 18 2013 (MHW shoreline/Cross-shore data) Dec 03 2013 (MHW shoreline/Cross-shore data) Jan 29 2014 (MHW shoreline/Cross-shore data) Jun 11 2014 (Cross-shore data only) Sep 09 2014 (MHW shoreline/Cross-shore data) Oct 07 2014 (Cross-shore data/Breach shoreline) Jan 21 2015 (MHW shoreline/Cross-shore data/Breach shoreline) Mar 19 2015 (MHW shoreline/Cross-shore data) May 16 2015 (MHW shoreline/Cross-shore data/Breach shoreline) Sep 28 2015 (MHW shoreline/Cross-shore data/Breach shoreline) Jan 21 2016 (MHW shoreline/Cross-shore data) Jan 25 2016 (MHW shoreline/Cross-shore data) Apr 06 2016 (Cross-shore data only) Apr 11 2016 (MHW shoreline/Cross-shore data/Breach shoreline) Jun 16 2016 (Cross-shore data only) Sep 27 2016 (MHW shoreline/Cross-shore data/Breach shoreline) Jan 24 2017 (MHW shoreline/Cross-shore data/Breach shoreline) May 23 2017 (MHW shoreline/Cross-shore data/Breach shoreline) Oct 17 2017 (MHW shoreline/Cross-shore data/Breach shoreline)
Purpose:
The U.S. Geological Survey (USGS) mounted a substantial effort in response to Hurricane Sandy including an assessment of the morphological impacts to the beach and dune system at Fire Island, New York. Field surveys of the beach and dunes collected just prior to and after the U.S. landfall, which occurred on October 29th, 2012, were used to quantify change in several focus areas. The migration of the shoreline through time is assessed by quantifying the net shoreline movement (NSM) over different time periods, using the interpolated MHW shorelines and 50 m spaced transects in the Digital Shoreline Analysis System (DSAS; Thieler and others, 2009).
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20121028
Single_Date/Time:
Calendar_Date: 20121101
Single_Date/Time:
Calendar_Date: 20121102
Single_Date/Time:
Calendar_Date: 20121201
Single_Date/Time:
Calendar_Date: 20121212
Single_Date/Time:
Calendar_Date: 20121213
Single_Date/Time:
Calendar_Date: 20130110
Single_Date/Time:
Calendar_Date: 20130214
Single_Date/Time:
Calendar_Date: 20130313
Single_Date/Time:
Calendar_Date: 20130410
Single_Date/Time:
Calendar_Date: 20130624
Single_Date/Time:
Calendar_Date: 20130919
Single_Date/Time:
Calendar_Date: 20131204
Single_Date/Time:
Calendar_Date: 20140130
Single_Date/Time:
Calendar_Date: 20140908
Single_Date/Time:
Calendar_Date: 20150121
Single_Date/Time:
Calendar_Date: 20150516
Single_Date/Time:
Calendar_Date: 20150929
Single_Date/Time:
Calendar_Date: 20160122
Single_Date/Time:
Calendar_Date: 20160126
Single_Date/Time:
Calendar_Date: 20160413
Single_Date/Time:
Calendar_Date: 20160928
Single_Date/Time:
Calendar_Date: 20170126
Single_Date/Time:
Calendar_Date: 20170525
Single_Date/Time:
Calendar_Date: 20171018
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.228542
East_Bounding_Coordinate: -72.896291
North_Bounding_Coordinate: 40.724312
South_Bounding_Coordinate: 40.627352
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:86bb5be6-df1e-41ce-9873-638960fbad95
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: environment
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: geomorphology
Theme_Keyword: coastal processes
Theme_Keyword: unconsolidated deposits
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Shoreline
Theme_Keyword: Mean High Water Shoreline
Theme_Keyword: Hurricane Sandy
Theme_Keyword: October 2012
Theme_Keyword: Accretion
Theme_Keyword: Erosion
Theme_Keyword: St. Petersburg Coastal and Marine Science Center
Theme_Keyword: DSAS
Theme_Keyword: Digital Shoreline Analysis System
Theme_Keyword: Baseline
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Fire Island Lighthouse
Place:
Place_Keyword_Thesaurus: NPS Abbreviations
Place_Keyword: Fire Island National Seashore
Place_Keyword: FIIS
Place_Keyword: National Park Service
Place_Keyword: Northeast Region
Place_Keyword: New York
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Atlantic Ocean
Place_Keyword: New York
Place_Keyword: Fire Island
Place_Keyword: Fire Island Light Station
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_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
Contact_Person: Rachel E. Henderson (Hehre)
Contact_Address:
Address_Type: mailing address
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: rehenderson@usgs.gov
Native_Data_Set_Environment: Microsoft Windows 10 Version 1607; Esri ArcGIS 10.5.0.6491
Cross_Reference:
Citation_Information:
Originator: C.J. Hapke
Originator: E.A. Himmelstoss
Originator: M.G. Kratzmann
Originator: J.H. List
Originator: E.R. Thieler
Publication_Date: 2010
Title:
National Assessment of Shoreline Change: Historical Shoreline Change along the New England and Mid-Atlantic Coasts
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2010-1118
Publication_Information:
Publication_Place: Woods Hole Coastal & Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://pubs.usgs.gov/of/2010/1118/
Cross_Reference:
Citation_Information:
Originator: E.R. Thieler
Originator: E.A. Himmelstoss
Originator: J.L. Zichichi
Originator: A. Ergul
Publication_Date: 2009
Title:
Digital Shoreline Analysis System (DSAS) version 4.0 - An ArcGIS extension for calculating shoreline change
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2008-1278
Publication_Information:
Publication_Place: Woods Hole Coastal & Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details: Current version of software at time of use was 4.3
Online_Linkage: https://woodshole.er.usgs.gov/project-pages/DSAS/
Online_Linkage: Online_Linkage: https://pubs.er.usgs.gov/publication/ofr20081278
Cross_Reference:
Citation_Information:
Originator: R. A. Morton
Originator: T.L. Miller
Publication_Date: 2005
Title:
National assessment of shoreline change: Part 2 Historical shoreline changes and associated coastal land loss along the U.S. Southeast Atlantic Coast
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2005-1401
Publication_Information:
Publication_Place: Woods Hole Coastal & Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://pubs.usgs.gov/of/2005/1401/
Cross_Reference:
Citation_Information:
Originator: C.J. Hapke
Originator: D. Reid
Originator: B.M. Richmond
Originator: P. Ruggiero
Originator: J. List
Publication_Date: 2006
Title:
National assessment of shoreline change Part 3: Historical shoreline change and associated coastal land loss along the sandy shorelines of the California coast
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2006-1219
Publication_Information:
Publication_Place: Woods Hole Coastal & Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details: none
Online_Linkage: https://pubs.usgs.gov/of/2006/1219/
Cross_Reference:
Citation_Information:
Originator: K.M. Weber
Originator: J.H. List
Originator: K.L.M. Morgan
Publication_Date: 20050101
Title:
An Operational Mean High Water Datum for Determination of Shoreline Position from Topographic Lidar Data
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2005-1027
Publication_Information:
Publication_Place: Woods Hole Coastal & Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://pubs.usgs.gov/of/2005/1027/
Cross_Reference:
Citation_Information:
Originator: Rachel E. Henderson
Originator: Cheryl J. Hapke
Originator: Owen T. Brenner
Originator: B.J. Reynolds
Publication_Date: 20170414
Title:
Hurricane Sandy beach response and recovery at Fire Island, New York: Shoreline, beach profile data, and beach shoreline data: October 2012 to September 2016
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7G15Z17
Publication_Information:
Publication_Place: St. Petersburg, Florida
Publisher:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Other_Citation_Details:
Suggested Citation: Henderson, R.E., Hapke, C.J., Brenner, O.T., and Reynolds, B.J., 2017, Hurricane Sandy beach response and recovery at Fire Island, New York: Shoreline, beach profile data, and breach shoreline data: October 2012 to September 2016: U.S. Geological Survey data release, https:// doi.org/10.5066/F7G15Z17.
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The data provided here is a compilation of shorelines that were derived using USGS-specific field-collection methods over the course of four years following Hurricane Sandy, which made landfall in New Jersey on October 29, 2012. The table attributes associated with FIIS_Shorelines_Oct2012_Oct2017.shp are based on the requirements of the Digital Shoreline Analysis System (DSAS) software and have gone through a series of quality assurance procedures. For more information, see https://woodshole.er.usgs.gov/project-pages/DSAS/.
Logical_Consistency_Report:
Adjacent shoreline segments do not overlap and are not necessarily continuous. Shorelines were quality checked for accuracy.
Completeness_Report:
This shoreline file is complete and contains all shoreline segments derived from pre- and post-Hurricane Sandy data collection efforts. These data adequately represented the shoreline position at the time of the survey.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
In order to determine the uncertainties associated with individual shorelines, a methodology following Morton and Miller (2005) and Hapke and others, (2006) was used to estimate a positional error value for each shoreline. The shoreline position uncertainty is estimated using a square root of the sum of the squares of multiple terms. Total shoreline positional error is a function of the errors inherent in the source data/data collection, and those errors generated in the creation and identification of the vector shoreline. The two different methods of shoreline generation, "interpolated" and "extracted" are described in the process steps. The uncertainty calculations for Mean High Water (MHW) shoreline generation are as follows:
INTERPOLATED MHW SHORELINES: Oct 2012 to Dec 2013 The terms used for the interpolated shorelines derived from October 2012 to December 2013 were: 1) Predicted MHW uncertainty - an estimate of interpolated shoreline position accuracy based on the slope, and distance between track lines (average of 0.8 to 2.5 m); 2) Average measured MHW error - the positional difference between the interpolated MHW shoreline and the location of the MHW elevation on the cross-shore profiles from the same survey date (average offset ranges from 0.9 to 7.5 m); 3) Collection and equipment error - derived from static portions of each survey (average offset ranges from 0.07 to 0.12 m); 4) A term to account for horizontal positional variation found when driving the GPS (horizontal to the Polaris) on a sloped surface (0.01 to 0.02 m).
EXTRACTED MHW SHORELINES: Jan 2014 to Oct 2017
For surveys January 2014 to October 2017 the MHW elevation was extracted from a surface generated from field collected data points. The terms used to estimate error for the extracted shorelines were: 1) Average measured MHW - the positional difference between the interpolated MHW shoreline and the location of the MHW elevation on the cross-shore profiles from the same survey date (average offset ranges from 0.8 to 4.5 m) 2) collection and equipment error - derived from static portions of each survey (0.01 to 0.11 m); and 3) uncertainty of the interpolated surface estimated by withholding 10% of the original data points and calculating a root mean square error (RMSE) of the difference between the withheld points and the surface (0.02 to 0.06 m). Uncertainty values for individual shorelines can be found in the shapefile's UNCERT attribute and in the Horizontal Positional Accuracy Explanation of this metadata file.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 3.1
Horizontal_Positional_Accuracy_Explanation:
Each shoreline was assigned a unique uncertainty based on 1) Predicted MHW uncertainty; 2) Average measured MHW error; 3) Collection error; 4) And finally an estimated error based on slope of the beach. The following are the estimated uncertainties for each date. Values are in meters NAVD88. Interpolated Shoreline Uncertainty (m) Oct 28 2012 (5.1) Nov 01 2012 (1.9) Dec 01 2012 (3.9) Dec 12 2012 (4.6) Jan 10 2013 (7.8) Feb 12 2013 (2.8) Mar 13 2013 (5.0) Apr 09 2013 (4.9) Jun 24 2013 (1.5) Sep 19 2013 (1.2) Dec 03 2013 (2.8) Extracted Shoreline Uncertainty (m) Jan 30 2014 (2.2) Sep 09 2014 (3.2) Jan 21 2015 (1.3) May 16 2015 (1.9) Sep 30 2015 (1.3) Jan 22 2016 (0.8) Jan 26 2016 (3.1) Apr 12 2016 (4.5) Sep 28 2016 (3.6) Jan 26 2017 (4.3) May 25 2017 (5.3) Oct 18 2017 (2.3)
Average = 3.3 m
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: B.J. Reynolds
Originator: Owen T. Brenner
Originator: Cheryl J. Hapke
Publication_Date: Unpublished material
Title: FIIS DGPS shoreline data
Geospatial_Data_Presentation_Form: tabular digital data
Other_Citation_Details:
In order to examine the dynamics of the shoreline from Hurricane Sandy and monitor the continued response and recovery, surveys of continuous alongshore DGPS data were collected in conjunction with cross-shore profiles. Multiple shore-parallel tracks were driven to capture the base of the dune, the mid-beach, and the upper and lower foreshore along the length of the island from Fire Island lighthouse to the western side of the storm-induced inlet breach at Old Inlet. Initial surveys were conducted one day prior to landfall and immediate post-storm surveys were conducted over the three days following Hurricane Sandy. The beaches and dunes were resurveyed monthly from December 2012 through April 2013, and bi-monthly surveys are presently ongoing. The USGS is continuing to monitor the beaches and dunes to evaluate how much of the sand removed by Sandy returns to the beach via natural beach-building processes.
Type_of_Source_Media: .csv file
Source_Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 20121028
Single_Date/Time:
Calendar_Date: 20121101
Single_Date/Time:
Calendar_Date: 20121102
Single_Date/Time:
Calendar_Date: 20121201
Single_Date/Time:
Calendar_Date: 20121212
Single_Date/Time:
Calendar_Date: 20121213
Single_Date/Time:
Calendar_Date: 20130110
Single_Date/Time:
Calendar_Date: 20130214
Single_Date/Time:
Calendar_Date: 20130313
Single_Date/Time:
Calendar_Date: 20130410
Single_Date/Time:
Calendar_Date: 20130624
Single_Date/Time:
Calendar_Date: 20130919
Single_Date/Time:
Calendar_Date: 20131204
Single_Date/Time:
Calendar_Date: 20140130
Single_Date/Time:
Calendar_Date: 20140908
Single_Date/Time:
Calendar_Date: 20150121
Single_Date/Time:
Calendar_Date: 20150516
Single_Date/Time:
Calendar_Date: 20150929
Single_Date/Time:
Calendar_Date: 20160122
Single_Date/Time:
Calendar_Date: 20160126
Single_Date/Time:
Calendar_Date: 20160413
Single_Date/Time:
Calendar_Date: 20160928
Single_Date/Time:
Calendar_Date: 20170126
Single_Date/Time:
Calendar_Date: 20170525
Single_Date/Time:
Calendar_Date: 20171018
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: DGPS DATA DATE
Source_Contribution:
Tabular DGPS data (collected in ASCII format) was converted to vector digital data and edited using Esri ArcMap v 10.5 to publish shoreline data in a GIS environment.
Process_Step:
Process_Description:
Interpolated MHW Shoreline generation from tabular DGPS Data (October 28, 2012 to December 2013) Continuous alongshore DGPS data were collected to assess the positional changes of the MHW shoreline and the upper portion of the beach. Data were collected along shore-parallel tracks to capture the base of the dune, the mid-beach, and the upper and lower foreshore. For each survey date, ASCII point data were imported into Matlab (v R2012a) and processed as follows:
For surveys October 28, 2012 through December 2013, the MHW shoreline (0.46 m North American Vertical Datum of 1988 [NAVD88]) is derived from the field data by using an interpolation method that creates a series of equally-spaced cross-shore profiles between the two survey lines that flank the MHW contour. The foreshore slope is assumed to be uniform on each profile. Using this slope and the two surveyed positions on each cross-shore profile, a simple geometric calculation is done to find where each profile line intersects the MHW contour. At this intersection a point is generated, and the series of points making up the MHW shoreline are appended to create a polyline shoreline. The resulting polyline shapefile was named FIIS_shoreline_DATE, where date is the date of the field survey. For example: MHW extracted polyline for October 28, 2012 would be named FIIS_shoreline_2012Oct28.shp
Source_Used_Citation_Abbreviation: DGPS DATA DATE
Process_Date: 20140130
Source_Produced_Citation_Abbreviation: FIIS_Shorlines_DATE
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey - Woods Hole Coastal & Marine Science Center
Contact_Person: Amy Farris
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-457-2288
Contact_Facsimile_Telephone: 508-547-2310
Contact_Electronic_Mail_Address: afarris@usgs.gov
Process_Step:
Process_Description:
Extracted MHW Shoreline generation from tabular DGPS Data (January 2014 to October 2017)
Continuous alongshore DGPS data were collected to assess the positional changes of the MHW shoreline and the upper portion of the beach. Data were collected along shore-parallel tracks to capture the base of the dune, the mid-beach, and the upper and lower foreshore. For each survey date, ASCII point data were imported into ArcMap as point data. Starting in January of 2014, and applying to all subsequent surveys, a new survey approach was implemented that was designed to improve surface interpolation by collecting a denser network of XYZ (UTMX, UTMY, and elevation) points along the beach face. For these surveys, alongshore transects are collected at the berm crest, low water mark and mid-beach face. In addition, a sinusoidal transect is collected by driving from the water's edge to the top of the berm crest at approximately 45 degrees to the orientation of the shoreline. The XYZ data are used to create an interpolated surface from which the MHW contour is extracted.
The resulting polyline shapefile was named FIIS_shoreline_DATE, where date is the date of the field survey. For example: MHW extracted polyline for October 28, 2012 would be named FIIS_shoreline_2012Oct28.shp
Source_Used_Citation_Abbreviation: DGPS DATA DATE
Process_Date: 20180315
Source_Produced_Citation_Abbreviation: FIIS_Shorlines_DATE
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
Contact_Person: Rachel E. Henderson (Hehre)
Contact_Address:
Address_Type: mailing address
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: rehenderson@usgs.gov
Process_Step:
Process_Description:
The shoreline file FIIS_Shorlines_DATE was coded with attribute fields: FID, DATE_, and UNCERT (Uncertainty). These fields are required for the Digital Shoreline Analysis System (DSAS), which was used to calculate shoreline change rates. Additional fields: Year_, Agency, Proxy, Data_Source, Notes_, Originator_, and SHAPE_Leng were added to comply with the existing historical shoreline shapefile database for Fire Island. Agency refers to the contact organization (ex: USGS, NPS), Proxy is the shoreline proxy used to derive the shoreline (ex: MHW, HWL), Data_Source is the material or source of the shoreline data (ex: lidar, air photos, GPS), Notes_ indicates the extent of the shoreline data along Fire Island, and the Originator_ attribute is the contact organization responsible for the generation of the shoreline.
Process_Date: 20180410
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Contact_Person: Rachel E. Henderson (Hehre)
Contact_Address:
Address_Type: mailing address
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: rehenderson@usgs.gov
Process_Step:
Process_Description:
Calculation of shoreline uncertainty: In order to determine the uncertainties associated with individual shorelines, a methodology following Morton and Miller (2005) and Hapke and others, (2006) was used to estimate a positional error value for each shoreline. The shoreline position uncertainty is estimated using a square root of the sum of the squares of multiple terms. Total shoreline positional error is a function of the errors inherent in the source data/data collection, and those errors generated in the creation and identification of the vector shoreline. The two different methods of shoreline generation, "interpolated" and "extracted" are described in the preceding process steps. The uncertainty calculations for Mean High Water (MHW) shoreline generation are as follows:
INTERPOLATED MHW SHORELINES: Oct 2012 to Dec 2013 The terms used for the interpolated shorelines derived from October 2012 to December 2013 were: 1) Predicted MHW uncertainty - an estimate of interpolated shoreline position accuracy based on the slope, and distance between track lines (average of 0.8 to 2.5 m); 2) Average measured MHW error - the positional difference between the interpolated MHW shoreline and the location of the MHW elevation on the cross-shore profiles from the same survey date (average offset ranges from 0.9 to 7.5 m); 3) Collection and equipment error - derived from static portions of each survey (average offset ranges from 0.07 to 0.12 m); 4) A term to account for horizontal positional variation found when driving the GPS (horizontal to the Polaris) on a sloped surface (0.01 to 0.02 m).
EXTRACTED MHW SHORELINES: Jan 2014 to Sep 2016 For surveys January 2014 to Sept 2016 the MHW elevation was extracted from a surface generated from field collected data points. The terms used to estimate error for the extracted shorelines were: 1) Average measured MHW - the positional difference between the interpolated MHW shoreline and the location of the MHW elevation on the cross-shore profiles from the same survey date (average offset ranges from 0.8 to 4.5 m) 2) Collection and equipment error - derived from static portions of each survey (0.01 to 0.11 m); and 3) Uncertainty of the interpolated surface estimated by withholding 10% of the original data points and calculating a root mean square error (RMSE) of the difference between the withheld points and the surface (0.02 to 0.06 m). Uncertainty values for individual shorelines can be found in the shapefile "UNCERT" attribute and in the Horizontal Positional Accuracy Explanation of this metadata file.
Process_Date: 20180401
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Contact_Person: Rachel E. Henderson (Hehre)
Contact_Address:
Address_Type: mailing address
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: rehenderson@usgs.gov
Process_Step:
Process_Description:
In ArcMap (v.10.5) the calculated uncertainty rates were added to the attribute field "UNCERT" for each shoreline shapefile for use with the Digital Shoreline Analysis System (DSAS v.4.0) software to perform rate calculations.
Process_Date: 20180401
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Contact_Person: Rachel E. Henderson (Hehre)
Contact_Address:
Address_Type: mailing address
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: rehenderson@usgs.gov
Process_Step:
Process_Description:
All shorelines were appended into one feature class (in a personal geodatabase). ArcToolbox>>Data Management Tools>>General>>Append: select each FIIS_shoreline_DATE polyline shapefile. Features were exported from the geodatabase to shoreline shapefiles for each survey date. Shorelines for the following dates were appended to a single shapefile: Oct 28 2012 Nov 01 2012 Nov 02 2012 Dec 01 2012 Dec 12 2012 Dec 13 2012 Jan 10 2013 Feb 12 2013 Mar 13 2013 Apr 09 2013 Jun 24 2013 Sep 19 2013 Dec 03 2013 Jan 30 2014 Sep 09 2014 Jan 21 2015 May 16 2015 Sep 30 2015 Jan 22 2016 Jan 26 2016 Apr 12 2016 Sep 28 2016 Jan 26 2017 May 25 2017 Oct 18 2017
Source_Used_Citation_Abbreviation: FIIS_Shorlines_DATE
Process_Date: 20180410
Source_Produced_Citation_Abbreviation: FIIS_Shorelines_Oct2012_Oct2017
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Contact_Person: Rachel E. Henderson (Hehre)
Contact_Address:
Address_Type: mailing address
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: rehenderson@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: String
Point_and_Vector_Object_Count: 25
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: -75.0
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: 0.6096
Ordinate_Resolution: 0.6096
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: FIIS_Shorelines_Oct2012_Oct2017
Entity_Type_Definition:
This dataset includes vector shorelines representing an approximation of the MHW shoreline. Data were collected alongshore (just west of the Fire Island Lighthouse to the western flank of the storm-induced breach in the location of Old Inlet, in the Otis Pike High Dunes Wilderness area) to assess positional changes of the shoreline and the upper portion of the beach.
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: DATE_
Attribute_Definition:
Date assigned to MHW shoreline position; date of original survey as indicated on source material in the format mm/dd/yyyy.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of length 10. Date expressed as mm/dd/yyyy.
Attribute:
Attribute_Label: UNCERT
Attribute_Definition:
Estimate of shoreline position uncertainty. Actual shoreline position is expected to be within the range of this value (plus or minus, meters). See the section on horizontal positional accuracy for more detailed description.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.8
Range_Domain_Maximum: 7.8
Attribute:
Attribute_Label: YEAR_
Attribute_Definition: Year of shoreline collection.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2012
Range_Domain_Maximum: 2017
Attribute_Units_of_Measure: year
Attribute:
Attribute_Label: Agency
Attribute_Definition: Originator agency of material used to derive shoreline.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of length 20
Attribute:
Attribute_Label: Proxy
Attribute_Definition: Method used to determine shoreline.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value:
MHW - interpolated from bounding alongshore lines or MHW - extracted from surface
Enumerated_Domain_Value_Definition:
Method used to determine shoreline location determined by available data.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: Data_Sourc
Attribute_Definition: Source (type) of data used to generate the shoreline.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: DGPS Post Sandy Field Data Collection
Enumerated_Domain_Value_Definition: Shoreline data collected by USGS with differential GPS survey.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: NOTES_
Attribute_Definition:
Notes about each shoreline, including a description of coverage and data gaps alongshore.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of length 150
Attribute:
Attribute_Label: Originator
Attribute_Definition:
The person or persons responsible for interpreting the tabular field data to the MHW shoreline.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of length 100
Attribute:
Attribute_Label: SHAPE_Leng
Attribute_Definition:
Length of feature, in meters (UTM zone 18N NAD 83), automatically calculated by Esri software in the geodatabase.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6201.007
Range_Domain_Maximum: 30001.101
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
Contact_Address:
Address_Type: mailing address
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: rehenderson@usgs.gov
Resource_Description: FIIS_Shorelines_Oct2012_Oct2017.shp
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
Format_Version_Number: 16.04
Format_Specification: Esri polyline shapefile
Format_Information_Content:
This zip file contains a shapefile of 25 Mean High Water (MHW) shorelines, covering 22 dates for Fire Island, NY.
File_Decompression_Technique: Use 7-Zip or WinZip
Transfer_Size: 2.73
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20201013
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
Contact_Person: Rachel E. Henderson (Hehre)
Contact_Address:
Address_Type: mailing address
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: Contact_Voice_Telephone
Contact_Electronic_Mail_Address: rehenderson@usgs.gov
Hours_of_Service: 0800-1600 Eastern Time
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

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