Change in suspended sediment concentration over the salt marsh units in Edwin B. Forsythe National Wildlife Refuge, New Jersey during Hurricane Sandy

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Zafer Defne
Originator: Neil K. Ganju
Publication_Date: 2017
Title:
Change in suspended sediment concentration over the salt marsh units in Edwin B. Forsythe National Wildlife Refuge, New Jersey during Hurricane Sandy
Edition: 1.0
Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polygon)
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7K64GZT
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.5066/F7K64GZT
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Zafer Defne
Originator: Neil K. Ganju
Publication_Date: 2017
Title:
Wetland data layers derived from Barnegat Bay Little Egg Harbor hydrodynamic model
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7K64GZT
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Defne, Zafer, and Ganju, N.K., 2017, Wetland data layers derived from Barnegat Bay Little Egg Harbor hydrodynamic model: U.S. Geological Survey data release, https://doi.org/10.5066/F7K64GZT.
Online_Linkage: https://doi.org/10.5066/F7K64GZT
Description:
Abstract:
As part of the Hurricane Sandy Science Plan, the U.S. Geological Survey is expanding National Assessment of Coastal Change Hazards and forecast products to coastal wetlands. The intent is to provide federal, state, and local managers with tools to estimate the vulnerability of coastal wetlands to various factors and to evaluate their ecosystem service potential. For this purpose, the response and resilience of coastal wetlands to physical factors need to be assessed in terms of the ensuing change to their vulnerability and ecosystem services. Edwin B. Forsythe National Wildlife Refuge (EBFNWR), New Jersey, was selected as a pilot study area.
As part of this data synthesis effort, hydrodynamic and sediment transport modeling of Barnegat Bay Little Egg Harbor (BBLEH) has been used to create the following wetland data layers in Edwin B. Forsythe National Wildlife Refuge (EBFNWR), New Jersey: 1) Hydrodynamic residence time , 2) salinity change and 3) salinity exposure change in wetlands, and 4) sediment supply to wetlands. The residence time layer was based on the hydrodynamic and particle tracking modeling of the period 3/1/2012 to 5/1/2012 by Defne and Ganju (2015). For this data layer, the residence time map of estuarine water has been projected over the EBFNWR salt marshes. The rest of the layers were derived from the BBLEH hydrodynamic modeling for the Hurricane Sandy period that spans from 10/27/2012 to 11/04/2012 (Defne and Ganju, 2016a). The model estimated changes in salinity and sediment concentrations over the salt marshes caused by storm-induced coastal flooding. The results are summarized over the previously determined conceptual salt marsh unit polygons (Defne and Ganju, 2016b).
Purpose:
This polygon dataset facilitates quantifying an episodic change in suspended sediment concentration (SSC) in the EBFNWR salt marsh complex by summarizing the results over the previously determined conceptual salt marsh unit polygons (Defne and Ganju, 2016). Analysis of change in SSC is part of a comprehensive assessment to identify the factors and their weights in determining the vulnerability and resiliency of salt marshes. Change in SSC has been estimated based on the hydrodynamic modeling of Barnegat Bay - Little Egg Harbor (BBLEH) estuary during the Hurricane Sandy period from 10/27/2012 to 11/04/2012 (Defne and Ganju, 2016a).
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2017
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -74.484623118
East_Bounding_Coordinate: -74.051158122
North_Bounding_Coordinate: 40.053798801
South_Bounding_Coordinate: 39.435117592
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: wetland ecosystems
Theme_Keyword: wetland functions
Theme_Keyword: coastal ecosystems
Theme_Keyword: coastal processes
Theme_Keyword: environmental assessment
Theme_Keyword: vegetation
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: suspended sediment concentration
Theme_Keyword: salt marsh
Theme_Keyword: vegetation
Theme_Keyword: marsh health
Theme_Keyword: estuary
Theme_Keyword: resilience
Theme_Keyword: vulnerability
Theme_Keyword: polygon shapefile
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: inlandWaters
Theme_Keyword: environment
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Edwin B. Forsythe National Wildlife Refuge
Place_Keyword: United States
Place_Keyword: Great Bay
Place_Keyword: Barnegat Bay
Place_Keyword: Little Egg Island
Place_Keyword: New Jersey
Place_Keyword: Atlantic Ocean
Access_Constraints: None
Use_Constraints:
The change in SSC values in this dataset are defined for scientific research purposes and should not be used as a sole source of reference for any regulations and policy making. 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 source of this information.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Zafer Defne
Contact_Position: Ocean Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Contact_Voice_Telephone: 508-548-8700 x2254
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: zdefne@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Graphic that shows the change in SSC during Hurricane Sandy in the EBFNWR salt marsh complex overlaying Esri Shaded World Relief Map.
Browse_Graphic_File_Type: PNG
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1 (Build 4959) Service Pack N/A (Build N/A)
Cross_Reference:
Citation_Information:
Originator: Zafer Defne
Originator: Neil K. Ganju
Publication_Date: 2016
Title:
Conceptual salt marsh units for wetland synthesis: Edwin B. Forsythe National Wildlife Refuge, New Jersey
Edition: 1.0
Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polygon)
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7QV3JPG
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7QV3JPG
Cross_Reference:
Citation_Information:
Originator: Zafer Defne
Originator: Neil K. Ganju
Publication_Date: 2016
Title:
Storm-induced geomorphological changes in a shallow, back-barrier estuary
Other_Citation_Details:
American Geophysical Union Ocean Sciences Meeting, New Orleans, LA, USA
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Zafer Defne
Originator: Neil K. Ganju
Publication_Date: 2015
Title:
Quantifying the residence time and flushing characteristics of a shallow, back-barrier estuary: application of hydrodynamic and particle tracking models
Series_Information:
Series_Name: Estuaries and Coasts
Issue_Identification: Volume 38
Publication_Information:
Publication_Place: New York, NY
Publisher: Springer US
Other_Citation_Details: pages 1719-1734
Online_Linkage: https://doi.org/10.1007/s12237-014-9885-3
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Water-land boundary and marsh unit boundaries inherit accuracy from the accuracy of source data, conceptual marsh units. Change in SSC data layer is calculated by resampling the hydrodynamic model output at a higher horizontal resolution of 0.0003 degrees (~30 meters) prior to averaging over each marsh unit.
Logical_Consistency_Report:
Change in SSC values are on the same order of magnitude with the simulated SSC. The SSC during a storm is larger in all of the marsh units during the storm resulting in positive difference.
Completeness_Report:
The polygon outlines for this dataset are defined by the conceptual marsh unit boundaries in the source dataset. That is the boundaries of the EBFNWR areas that include unvegetated and vegetated areas. A detailed on-the-ground analysis of a single site may result in a different interpretation of the wetland and marsh unit boundaries than established through this analysis.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Horizontal accuracy for the polygon boundaries is inherited from the source layer, conceptual marsh units, and considered to be greater than ~3 meters. The point cloud used for calculating SSC change had variable horizontal resolution (~40 to ~300 meters) that was interpolated over a ~30-meter raster. The raster dataset was resampled at 3 meter resolution to enhance the conformity with the marsh unit boundaries prior to calculating zonal statistics.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Zafer Defne
Originator: Neil K. Ganju
Publication_Date: 2016
Title:
Conceptual salt marsh units for wetland synthesis: Edwin B. Forsythe National Wildlife Refuge, New Jersey
Geospatial_Data_Presentation_Form: Vector Digital Data Set (Polygon)
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7QV3JPG
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7QV3JPG
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2016
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: marshUnitsEBFp.shp
Source_Contribution:
Downloaded and used the features in [marshUnitsEBFp.shp] to summarize change in suspended sediment concentration at each marsh unit during a storm
Process_Step:
Process_Description:
This process step used ArcMap (ver. 10.3.1) using tools from ArcToolbox. Names of specific tools used are given in CAPITAL letters (any critical parameters used is given in parentheses, separated by a semicolon, immediately after the tool name). Input and output file names are provided in [square brackets] when necessary. Units for length and area calculations are meters (m) and square meters (m2) unless otherwise stated.
Defne and Ganju (2016a) modeled estuarine circulation in BBLEH during Hurricane Sandy period that spans from 10/27/2012 to 11/04/2012 with a three-dimensional hydrodynamic model. The computational domain included a part of Great Bay to the south and Manasquan Inlet to the north in addition to Barnegat Bay and Little Egg Harbor. Net change in SSC was calculated by subtracting the depth-averaged SSC during non-storm conditions from those during Hurricane Sandy. The sediment classes used in the simulation included fine sand, very fine sand and silt with grain size diameters of 0.126, 0.055 and 0.0078 millimeters, respectively. The sediment concentration over subaerial regions during non-storm conditions is assumed to be zero.
Import hydrodynamic model output and project it to Web Mercator coordinate system, which is preferred projection for web services. Create a raster layer from it.
a) MAKE XY EVENT LAYER('XY table'= 'SSCC.txt'; X field='lon'; Y field='lat'; Z field='val'; Layer name='SSCC_WGS84.shp'; Spatial reference='GCS_WGS_1984')
b) PROJECT(Input dataset='SSCC_WGS84.shp'; Output dataset='SSCC.shp'; Output coordinate system='WGS_1984_Web_Mercator_Auxiliary_Sphere')
c) IDW.SpatialAnalyst(Input feature='SSCC.shp'; Output Cell Size=100 meters; Power=2; Search Radius=Variable; Number of Points=12; Output raster='SSCC.tif') with the Raster processing extent same as the extent of the marsh unit polygons [marshUnitsEBFp.shp].
Source_Used_Citation_Abbreviation: marshUnitsEBFp.shp
Process_Date: 2017
Source_Produced_Citation_Abbreviation: SSCC.shp
Source_Produced_Citation_Abbreviation: SSCC.tif
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Zafer Defne
Contact_Position: Ocean Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2254
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: zdefne@usgs.gov
Process_Step:
Process_Description:
Some part of the EBFNWR salt marsh system to south of the Great Bay and upstream of Mullica River is not covered by the hydrodynamic model. The values for the marsh units in these areas are determined from the nearest marsh units with values using an inverse distance method. First, the marsh units are grouped into two depending on whether they are inside or outside of the computational domain.
a) Select features from [marshUnitsEBFp.shp] marsh polygons that are within the BBLEH computational domain and export as [mu_with_data.shp].
b) Invert selection and export polygons outside the computational domain as [mu_no_data.shp].
Source_Used_Citation_Abbreviation: marshUnitsEBFp.shp
Process_Date: 2017
Source_Produced_Citation_Abbreviation: mu_with_data.shp
Source_Produced_Citation_Abbreviation: mu_no_data.shp
Process_Step:
Process_Description:
Calculate the SSC change values for marsh units using the ZONALTABLE2FEAT tool. This tool calculates the statistics (e.g. the mean value) for each marsh unit polygon from the underlying raster layer. ZONALTABLE2FEAT(Raster layer='SSCC.tif'; Zone features='mu_with_data.shp'; Zone field='FID_CMU'; Statistics type='MEAN'; Table name='mu1'; Output='mu_with_SC.shp') to calculate the mean SSC for each marsh unit within the BBLEH domain. During this process the table name 'mu1' is prefixed to field names for [mu_with_SC.shp] (as opposed to 'mu0' for the interior polygons in the following steps).
Source_Used_Citation_Abbreviation: SSCC.tif
Source_Used_Citation_Abbreviation: mu_with_data.shp
Process_Date: 2017
Source_Produced_Citation_Abbreviation: mu_with_SSCC.shp
Process_Step:
Process_Description:
Create a raster layer from the interior polygons and use it to estimate values for exterior marsh units.
a) FEATURE TO POINT(Input features='mu_with_SC.shp'; 'Output features='mu_with_SSCC_pts.shp').
b) IDW.SpatialAnalyst(Input features='mu_with_SSCC_pts.shp'; Output Cell Size=100 meters; Power=2; Search Radius=Variable; Number of Points=12; Output raster='mu_no_SC.tif') with Raster analysis extent set to the same extent with [marshUnitsEBFp.shp].
c) ZONALTABLE2FEAT(Raster layer='mu_no_SC.tif'; Zone features='mu_no_data.shp'; Zone field='FID_CMU'; Statistics type='MEAN'; Table name='mu0'; Output='mu_no_SC.shp') to calculate the mean SSC for the exterior marsh units. During this process the table name 'mu0' is prefixed to field names for [mu_no_SC.shp].
Source_Used_Citation_Abbreviation: mu_with_SSCC.shp
Source_Used_Citation_Abbreviation: mu_no_data.shp
Process_Date: 2017
Source_Produced_Citation_Abbreviation: mu_no_SSCC.shp
Process_Step:
Process_Description:
a ) MERGE the interior [mu_with_SC.shp] and exterior [mu_no_SC.shp] polygon features and calculate a new 'MEAN' field by adding the values of the mean values from two feature sets 'MEAN' = 'mu0_MEAN' + 'm1_MEAN'.
b) During geoprocessing a few polygons smaller than the raster analysis resolution might get assigned "NoData" values. Replace the missing value with the value from the closest polygon.
c) Edit the fields and field names for clarity and EXPORT to obtain the final feature dataset [mu_SSCC_EBFNWRp.shp].
Source_Used_Citation_Abbreviation: mu_with_SSCC.shp
Source_Used_Citation_Abbreviation: mu_no_SSCC.shp
Process_Date: 2017
Source_Produced_Citation_Abbreviation: mu_SSCC_EBFNWRp.shp
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 1338
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name:
WGS 1984 Web Mercator Auxiliary Sphere (ESRI Full Name: WGS_1984_Web_Mercator_Auxiliary_Sphere)
Mercator:
Standard_Parallel: 0.0
Longitude_of_Central_Meridian: 0.0
False_Easting: 0.0
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: Meter
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: mu_SSCC_EBFNWRp
Entity_Type_Definition:
Attribute information associated with the change in SSC in the conceptual marsh units of EBFNWR salt marsh complex.
Entity_Type_Definition_Source: USGS
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: FID_CMU
Attribute_Definition:
Sequential unique whole numbers that represents the identification number for each conceptual marsh units.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 1337
Attribute:
Attribute_Label: MEAN
Attribute_Definition: Change in depth-averaged SSC in each marsh unit
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00640262989327312
Range_Domain_Maximum: 0.77676397562027
Attribute_Units_of_Measure: kg/m3
Overview_Description:
Entity_and_Attribute_Overview:
In this dataset, change in depth averaged suspended sediment concentration (SSC) during hurricane Sandy is averaged over each conceptual marsh unit in EBFNWR. Change in SSC is estimated based on the hydrodynamic modeling of Barnegat Bay - Little Egg Harbor (BBLEH) estuary from 10/27/2012 to 11/04/2012. Net change in SSC is calculated by subtracting the depth-averaged SSC in the water column during non-storm conditions from those during Hurricane Sandy. The SSC of sub-aerial regions during non-storm conditions is assumed to be zero. Decimal values in the attribute table are a result of double precision calculations while significant digits are considered in defining the attribute measurement resolutions. Therefore, the smallest unit increment for change in SSC can be assumed to be a practical value such as 0.001 kg/m3.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: mailing and physical address
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
mu_SSCC_EBFNWRp.shp (together with shapefile components, browse graphic, and associated FGDC CSDGM metadata in XML, TEXT, FAQ, and HTML formats with the same file name).
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. Not for navigational use.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: shapefile
Format_Version_Number: ArcGIS 10.3.1
Format_Information_Content: This zipped file contains a shapefile and associated metadata.
Transfer_Size: 27
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in network resources is to download all the files on the landing page. The second link downloads the zip file of the data and metadata. The third and fourth links point to a landing page with metadata and data, and the ScienceBase landing page of the larger work, respectively.
Digital_Form:
Digital_Transfer_Information:
Format_Name: WMS
Transfer_Size: 27
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is the WMS web services for remote access. The second link is to the rest services. The third link points to the dataset landing page with metadata and data, and the fourth link points to the ScienceBase landing page of the larger work.
Fees: None. No fees are applicable for obtaining the data set.
Metadata_Reference_Information:
Metadata_Date: 20170718
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Zafer Defne
Contact_Position: Ocean Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Contact_Voice_Telephone: 508-548-8700 x2254
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: zdefne@usgs.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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