Barnegat Bay Bulkheading

Please note: The bulkeading GIS data were derived from United States Geological Survey (USGS) 1:24,000 Digital Line Graphs - hydrography.  The following metadata contents were originally created/composed by the (USGS) for all 1:24,000-scale Digital Line Graphs and modified specifically for the Barnegat Bay bulkheading data by the Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University,

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
U.S. Geological Survey or another mapping agency in cooperation with USGS; modified by the Grant F. Walton Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University
Publication_Date: 19990401
Title: Barnegat Bay Bulkheading
Publication_Information:
Publication_Place: New Brunswick, New Jersey (original: Reston, Virginia)
Publisher: The Grant F. Walton Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University (original: U.S. Geological Survey)
Description:
Abstract:
The Barnegat Bay digital bulkheading data were derived by CRSSA from the original USGS Hydrography Digital Line Graph data set.  These digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related sources. Large-scale DLG data are derived from USGS 1: 20,000-, 1: 24,000-, and 1: 25,000-scale 7.5-minute topographic quadrangle maps.
Purpose:
New Jersey's coastal zone, and the Barnegat Bay watershed region in particular, has experienced extensive development and modification in the last five decades.  In an attempt to ameliorate past change and more effectively manage future environmental change, the Barnegat Bay Estuary Program (BBEP), at the time of writing, is in the process of developing a long range Comprehensive Conservation and Management Plan (CCMP).  One of the major topics of the BBEP is the role of humans, in comparison to natural processes of disturbance and change, in shaping Barnegat Bay and its capability to nurture a rich and diverse biota.  To assist in developing the CCMP, CRSSA has analyzed a variety of satellite imagery, aerial photography, digital geo-spatial data (e.g. land cover) and historical maps to document existing conditions, as well as assess long-term trends of habitat loss and alteration in Barnegat Bay and its watershed.  These bulkheading data were used in the habitat mapping and monitoring effort in Barnegat Bay.  The original USGS Digital Line Graph data, from which the bulkeading data were derived, were collected by the USGS as part of the National Mapping Program.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19800705
Ending_Date: present
Currentness_Reference: publication date
Status:
Progress: In work
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 553718.938
East_Bounding_Coordinate: 581303.062
North_Bounding_Coordinate: 4436441.000
South_Bounding_Coordinate: 4376275.500
Keywords:
Theme:
Theme_Keyword_Thesaurus: None.
Theme_Keyword: bulkheading
Theme_Keyword: hydrography
Theme_Keyword: digital line graph
Theme_Keyword: Barnegat Bay Data Synthesis Project
Theme_Keyword: Barnegat Bay National Estuary Program
Theme_Keyword: habitat loss and alteration
Theme_Keyword: coastal change
Place:
Place_Keyword_Thesaurus: None.
Place_Keyword: United States
Place_Keyword: New Jersey
Place_Keyword: Ocean County
Place_Keyword: Barnegat Bay
Place_Keyword: Barnegat Bay watershed
Place_Keyword: Little Egg Harbor
Access_Constraints: None
Use_Constraints:
While efforts have been made to ensure that these data are accurate and reliable within the state of the art, Rutgers University cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. Rutgers University makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.  Any maps, publications, reports or any other type of document produced as a result of an associated project utilizing Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University, data will credit the original author(s) as listed in the metadata as well as the Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University.  Also, acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data.  Data set is not for use in litigation.
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Unknown
Logical_Consistency_Report:
Topological requirements include: lines must begin and end at nodes, lines must connect to each other at nodes, lines do not extend through nodes, left and right areas are defined for each line element and are consistent throughout the file, and the lines representing the limits of the file (neatline) are free of gaps.  The tests of logical consistency were performed by the USGS PROSYS program. The neatline was generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region were ignored and all data crossing these geographically straight lines were clipped at the neatline. Data within a specified tolerance of the neatline were snapped to the neatline. Neatline straightening aligned the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal areas were tested for closure using PROSYS.
Completeness_Report:
For Digital Revision Status = Not revised Data completeness reflects the content of the source quadrangle. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints.
For Digital Revision Status = Limited Update This file has undergone limited update digital revision. The file contains only (1) those features that are photoidentifiable on monoscopic source, supplemented with limited ancillary source, and (2) those features, present on the original source quadrangle, that can not be reliably photoidentified but that are not considered particularly prone to change.
For Digital Revision Status = Standard Update This file has undergone standard update digital revision. The data completeness of this file meets NMD standards for feature content.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: For Digital Revision Status = Not revised:
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
For Hypsography, Hydrography and Survey Control and Markers Only: For Digital Revision Status = Not revised:
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
U.S. Geological Survey or another mapping agency in cooperation with USGS.
Publication_Date: Unknown
Title:
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey
Source_Scale_Denominator: 24000
Type_of_Source_Media: stable-base material
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: Unknown
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation:
Source_Contribution: spatial and attribute information
Process_Step:
Process_Description:
(USGS Process Steps for All Digital Line Graph Digital Data)
For Digital Revision Status = Not digitally revised: This Digital Line Graph was digitized from the USGS source quadrangle, by either the National Mapping Division, one of their cooperators, or one of their contractors. The digital data were produced by one of the following methods:
 
- scanning a stable-based copy of the graphic materials. The scanning process captured the digital data at a scanning resolution of at least 0.001 inches; the resulting raster data were vectorized and then attributed on an interactive editing station.

- scanning the paper map. The scanning process captured the digital data at a scanning resolution of at least 0.001 inches; the resulting raster data were vectorized and then attributed on an interactive editing station.

- scanning a stable-based copy of the graphic materials. The resulting raster data were then manually digitized and attributed on an interactive editing station. The resolution of the digital data is at least 0.001 inches.

- scanning the paper map. The resulting raster data were then manually digitized and attributed on an interactive editing station. The resolution of the digital data is at least 0.001 inches.

- manually digitizing from a stable-based copy of the graphic material using a digitizing table to capture the digital data at a resolution of at least 0.001 inches; attribution was performed either as the data were digitized, or on an interactive edit station after the digitizing was completed.

- manually digitizing from the paper map using a digitizing table to capture the digital data at a resolution of at least 0.001 inches; attribution was performed either as the data were digitized, or on an interactive edit station after the digitizing was completed.

The determination of the DLG production method was based on various criteria, including feature density, feature symbology, and availability of production systems. Four control points corresponding to the four corners of the quadrangle were used for registration during data collection. An eight parameter projective transformation was performed on the coordinates used in the data collection and editing systems to register the digital data to the internal coordinates used in PROSYS, and a four parameter linear transformation was performed from the PROSYS internal coordinates to Universal Transverse Mercator (UTM) grid coordinates. The DLG data were checked for position by one or more of the following processes: - comparing plots of the digital data to the graphic source. - comparing the digital data to the digital raster scan.

DLG data classification was checked by at least one of the following processes. - comparing plots of the digital data to the graphic source - comparing the digital data to the digital raster scan.

Source_Used_Citation_Abbreviation: MAP1
 
(CRSSA Process Steps for Generating Bulkheading Digital Data)
The Grant F. Walton Center for Remote Sensing and Spatial Analysis (CRSSA) obtained the 1:24,000 digital line graph vector hydrography data, available by USGS 7.5 minute quadrangle, from the USGS in DLG format.  All quadrangles of the Barnegat Bay watershed were converted to Arc/Info format and mosaic'd/appended to one vector coverage.  Not all digital data were available within the Barnegat Bay watershed region, therefore, "missing" USGS hydrography mylars were ordered, obtained and digitized by CRSSA following National Mapping Starndards for 1:24,000 data, then labelled and quality controlled appropriately.  Edgematching was performed on adjacent quadrangles if necessary.  Using the USGS 1:24,000 DLG user's guide, arcs representing "manmade" shoreline were identified according to their respective MAJOR/MINOR code combinations; using this information, manmade shoreline arcs were reselected out of the mosaic'd Arc/Info coverage to a new A/I coverage.  Arcs were quality controlled using the USGS 7.5 minute topographic paper maps.
Process_Date: 1996, 1999 (CRSSA processing)
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Spatial_Data_Organization_Information:
Indirect_Spatial_Reference:
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geodetic_Model:
Horizontal_Datum_Name: North American Datum 1983
Ellipsoid_Name: GRS1980
Projection: UTM
Zone: 18
Units: Meters
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Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
DLG3 attribute codes are used to describe the physical and cultural characteristics of DLG node, line, and area elements. Attribute codes are used to reduce redundant information, provide enough reference information to support integration with larger data base, and describe the relationships between cartographic elements. Each DLG element has one or more attribute codes composed of a three digit major code and a four-digit minor code. For example, with the 1: 24,000-scale DLG data, the line attribute code 050 0412 has a major code (050), meaning hydrography, with a minor code (0412) meaning stream.
CRSSA NOTE: The bulkheading's arc attribute table (.AAT)  has been slightly modified from the original USGS hydrography digital data.  It differs in regard to the number of MAJOR/MINOR fields in the .AAT ; the original USGS DLG had four MAJOR/MINOR codes.  For the purpose of this data layer, however, the MAJOR/MINOR3, MAJOR/MINOR4 fields have been deleted because their records contained redundant and/or all -99999.
The MAJOR/MINOR1, MAJOR/MINOR2 contain pertinent data: MAJOR1 = 050 >> Hydrography, MINOR1 = 201 >> Manmade shoreline
Entity_and_Attribute_Detail_Citation:
U.S. Department of the Interior, U.S. Geological Survey, 1987 Digital Line Graphs from 1:24,000-Scale Maps--Data Users Guide 1; Reston, Virginia
 
A hypertext extract is available at: <URL:http://edc.usgs.gov/glis/hyper/guide/usgs_dlg>

Softcopies in ASCII, WordPerfect, and PostScript format are available at: <URL:ftp://mapping.usgs.gov/pub/ti/DLG/>

U.S.Department of the Interior, U.S.Geological Survey, 1990, Standards for Digital Line Graphs, Reston, VA, 1994

Softcopies in ASCII, WordPerfect, and PostScript format are available at: <URL:ftp://mapping.usgs.gov/pub/ti/DLG/>

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Distribution_Information:
Distributor:
Contact_Information:

              Contact_Person_Primary:
                            Contact_Person: Richard G. Lathrop
                            Contact_Organization:
                                         Grant F. Walton Center for Remote Sensing and Spatial Analysis, Rutgers University
              Contact_Position: Director
              Contact_Address:
Address_Type: mailing and physical address
Address:

                  Grant F. Walton Center for Remote Sensing and Spatial Analysis
                  Natural Resources and Environmental Sciences Building
                  Cook College - Rutgers University
                  14 College Farm Road
City: New Brunswick
State_or_Province: New Jersey
Postal_Code: 08904-8551
Contact_Voice_Telephone: 732-93-1582
Hours_of_Service: 8.30am to 4.30pm Eastern Standard Time (EST) USA

 
Resource_Description: Barnegat Bay Bulkheading
Distribution_Liability:
While efforts have been made to ensure that these data are accurate and reliable within the state of the art, Rutgers University cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. Rutgers University makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.  Any maps, publications, reports or any other type of document produced as a result of an associated project utilizing Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University, data will credit the original author(s) as listed in the metadata as well as the Center for Remote Sensing and Spatial Analysis (CRSSA), Rutgers University.  Also, acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data.  Data set is not for use in litigation.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Arc/Info Interchange File (*.e00)
Format_Version_Date: Arc/Info version 8.x
Format_Specification:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.crssa.rutgers.edu/projects/runj/bbay.html
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Metadata_Reference_Information:
           Metadata_Date: 20001016
           Metadata_Review_Date: 20001016
           Metadata_Contact:
                  Contact_Information:
                                Contact_Person_Primary:
                                                     Contact_Person: Richard G. Lathrop
                                                      Contact_Organization:
                                                                    Grant F. Walton Center for Remote Sensing and Spatial Analysis, Rutgers University
                                         Contact_Position: Director
                                         Contact_Address:
                    Address_Type: mailing and physical address
                    Address:
                                          Grant F. Walton Center for Remote Sensing and Spatial Analysis
                                          Natural Resources and Environmental Sciences Building
                                          Cook College - Rutgers University
                                          14 College Farm Road
                    City: New Brunswick
                    State_or_Province: New Jersey
                    Postal_Code: 08904-8551
                    Country: USA
           Contact_Voice_Telephone: 732-932-1582
           Contact_Facsimile_Telephone: 732-932-2587
           Contact_Electronic_Mail_Address: lathrop@crssa.rutgers.edu
           Hours_of_Service: 8.30am to 4.30pm Eastern Standard Time (EST) USA
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
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