Relative Seawater Intrusion Vulnerability

Metadata for DP ME 483, Version 1, 2013, Relative Seawater Intrusion Vulnerability

Table Of Contents




Identification Information

Citation Information
  Title: DP ME 483, Version 1, 2013, Relative Seawater Intrusion Vulnerability
  Originator: G. W. Kennedy, J. S. McKinnon
  Publication Date: 2013
  Edition: 1
  Data Type: vector digital data
  Series: Digital Product
  Issue Identification: DP ME 483
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
  Publication Place: Halifax, Nova Scotia, Canada
  Online linkage: http://novascotia.ca/natr/meb/download/dp483.asp
 
Data Description
  Abstract: A GIS-based approach for broadly evaluating the relative vulnerability of bedrock coastal aquifers to seawater intrusion in unserviced areas of the province was developed. The approach uses available provincial spatial datasets, such as digital elevation models, civic address points and well logs data, to evaluate relative vulnerability based on the following derived criteria: distance to the coast, land slope, development density, non-residential groundwater use and static water level.
  Purpose: The preliminary relative vulnerability mapping is intended for the purpose of water resource management and land use planning. The information is not to be used for any other purpose.
  Supplemental Information: MRB data class = hgeo
  Language English
  Data Environment ArcInfo 10.0 on a SUN Ultra Sparc 60 workstation running Solaris 8
  Native Data Set Format Shapefile
 
Contact Information

    Jeff Poole
    Nova Scotia Department of Natural Resources, Mineral Resources Branch
    Digital Information Services Supervisor
    1701 Hollis Street, P.O. Box 698
    Halifax, Nova Scotia, Canada
    B3J 2T9
    (phone) 902-424-8139
    (fax) 902-434-7735
    Staff Contact
    Available: 9:00 am to 5:00 pm AST
 
Time Period Information
  Currentness Reference: publication date
 
Data Status
  Progress: In work
  Update Frequency: As needed
 
Spatial Domain
  West Coordinate: -66.5
  East Coordinate: -59
  North Coordinate: 48
  South Coordinate: 42.5

 
Keywords
  Theme Keywords: Geologic & Geophysical ; geoscientificInformation ; hydrogeology ; seawater intrusion ; land use planning ; groundwater ; Downloadable Data ; digital databases ; digital products ; digital geoscience data ; Hydrogeology (HG) ; HG Databases
  Place Keywords: Nova Scotia
 
Access and Usage Information
  Access Constraints: The access constraints are contained in the following License Agreement and the User Constraints which the user must agree to before using the data. A copy of the License Agreement and GSC User Constraints is included with the digital product. The License Agreement reads as follows For the data contained on this medium (media), or any part thereof, herein called the DATA Between the PROVINCE OF NOVA SCOTIA as represented by the Nova Scotia Department of Natural Resources, hereinafter referred to as DNR and the recipient of the data hereinafter called the USER For good consideration, the receipt of which is acknowledged, DNR licences the non-exclusive use of the digital DATA to the USER on the following terms and conditions. TERMS AND CONDITIONS DNR remains the owner of the DATA and is not assigning copyright privileges to the USER. The USER agrees to acknowledge DNR as the source of the DATA, if using or distributing it in its original form, whether in whole or in part, or as part of a value added product. DNR reserves the right to modify and/or update the DATA without obligations to notify the USER. The DATA is provided to the USER on an "as is" basis, without warranties of any kind, express or implied. The entire risk as to the quality and accuracy of the DATA is with the USER and the USER shall use his/her own judgment in making use of the DATA or drawing conclusions based upon it. DNR shall not be liable to the USER, his/her clients, servants, agents, contractors, assigns, or to any other person for any loss or damage of any kind including personal injury or death arising from the use of the DATA or accompanying written materials, or from errors, deficiencies or faults therein, whether such damage is caused by negligence or otherwise. If errors or omissions are found in the DATA, the USER will notify DNR. This Licence is the entire Agreement between the parties and supersedes all previous Agreements or understandings between DNR and the USER hereto, whether written or oral, in connection with or incidental to the DATA. This Licence shall be binding upon the parties hereto and each of their executors, administrators, successors and assigns and shall ensure to the benefit of such executors, administrators, successors and authorized assigns. This Licence must be included with the DATA if the USER copies, resells, or re-distributes the DATA whether in whole or in part. This Licence can be terminated by DNR at any time. Upon such termination, the USER shall refrain from using the DATA and destroy all copies and backups in the USER'S possession. This Licence is in effect once the USER reads and accepts the Terms and Conditions of this Licence. If the USER is unable or unwilling to fully comply with these terms and conditions, the USER must refrain from using the DATA. By using the DATA, the USER acknowledges that he/she was aware of the terms and conditions of this Licence when he/she accepted it, understood them, and agreed to be bound by them." A copy of the terms and conditions of the license are available with the downloaded product.
  Use Constraints: Any constraints on the use of the data are contained in the above license agreement. The terms and conditions of the license accompany the downloaded digital product. A statement of some use constraints can be viewed in the technical prerequisites.
 
Browse Graphic Information
  Filename: None
  Description: None at this time
 
Security Information
  Classification System: None
  Classification: Unclassified
  Handling Description: None



Data Quality Information
 
Positional Accuracy
  Positional Accuracy Report: There may be positional accuracy errors in the digital data that come from the original data collection. The data set contains data gathered from numerous surveys and the accuracy may vary between these. UTM Coordinates (Northings and Eastings): Northings and eastings are in NAD83, zone 20 metric units.
 
Source Information
 
Source(1 of 3)
  Title: Relative Seawater Intrusion Vulnerability
  Originator: G.W. Kennedy
  Publication Date: 2013
  Data Form: vector digital data
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
  Source Media: ArcGIS 10 shapefile
  Currentness Reference: publication date
  Online Linkage: http://novascotia.ca/natr/meb/download/dp483.asp
 
Source(2 of 3)
  Title: Nova Scotia Well Logs Database
  Originator: Nova Scotia Environment
  Publication Date: 2012
  Data Form: tabular digital data
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Environment
  Source Media: MS Access database
  Source Contribution: The well log records come from the Nova Scotia Well Logs Database published by the Nova Scotia Environment
  Online Linkage: http://www.novascotia.ca/nse/water/welldatabase.asp
 
Source(3 of 3)
  Title: Nova Scotia Mapbook and Atlas Grids
  Originator: B. E. Fisher
  Publication Date: Unpublished Material
  Data Form: vector digital data
  Other Citation: File names: h430nsix_new_map_book_grid.shp (Atlas) and h430nsix_old_map_book_grid (map book).
  Publication Place: Halifax, Nova Scotia
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
 
Processing Step Information
 
Processing Step (1 of 2)
  Description: A 250 m x 250 m grid within 1500 m of the 1:10 000 provincial coastline was created
  Software and Version: ArcGIS 9.2 and others
  Date: 2012
  Contact Person: (see Contact Information)
 
Processing Step (2 of 2)
  Description: The distance from each grid centroid to the 1:10 000 coastline layer of the province was calculated, and the grid cell was assigned a ranking. The slope was calculated from the 20 m digital elevation model (DEM) of the province and grid cells were assigned a ranking. This civic point layer was clipped to exclude civic points located within municipal water distribution zones and a count was performed of civic points within each grid cell and a ranking was assigned to the grid cell. Daily non-domestic groundwater withdrawal rates were summed for each grid cell and a ranking was assigned to the grid cell. A ground surface elevation was assigned to each of these wells using the best available digital elevation model (DEM). Higher resolution LiDAR-derived DEMs were available in eight sub-areas of the province. The water level elevation was calculated as the depth to water level reported by the well driller on the well log subtracted from the DEM estimated surface elevation. Where multiple wells were located within a grid cell, the minimum water level measurement was used for the vulnerability assessment. The more accurate water level elevation reported in provincial observation wells and pumping test reports superseded well log data where these data were available. Where water level data were sparse, the water level estimate predicted the water level in grid cells up to 500 m from the point measurement. Each grid cell was then assigned a ranking. Relative SWI vulnerability was calculated as the sum of all five criteria to produce an overall score.
  Software and Version: ArcGIS 10
  Date: 2012-2013
  Contact Person: (see Contact Information)


 
Spatial Data Organization Information

  Spatial Reference Method: Polygon


 
Spatial Reference Information

  Data Projection: Transverse Mercator
  Geographic Coordinate System: GCS_North_American_1983_CSRS
  Projected Coordinate System: NAD_1983_CSRS_UTM_Zone_20N
  Datum: D_North_American_1983_CSRS
  Ellipsoid: Geodetic Reference System 80
  Semi-Major Axis: 6378137.000000
  Denominator Of Flattening Axis: 298.257222



 
Entity Attribute Information

 
Overview Description
  Dataset Overview: The data set represents the relative seawater vunerability of bedrock coastal aquifers in unserviced areas of the province. The dataset contains one shapefile (polygon) that contains 186226 250 m x 250 m grid cells. A relative vulnerability ranking was calculated for 46382 cells across the province, while the remainder cells were not evaluated due to the absence of well log data which is used in the assessment. A second shapefile was created by dissolving the cells into categories indicating high, moderate and low vulnerability.
  Entity/Attribute Overview: The detailed description below describes each of the shapefiles and associated tables that make up this data set. The definition source contains a link to the metadata for the attribute information for each of the shapefiles and tables.
 
Detailed Description
 
Data Layer/Table (1 of 5)
  Table Name: h483nser.shp
  Description: ArcGIS shapefile polygons - salt water intrusion vulnerability
  Metadata Link: http://novascotia.ca/natr/meb/download/dp483ater.asp
 
Data Layer/Table (2 of 5)
  Table Name: h483nser_hml.shp
  Description: ArcGIS shapefile polygons - salt water intrusion vulnerability divided into HML (High-Moderate-Low)
  Metadata Link: http://novascotia.ca/natr/meb/download/dp483athml.asp
 
Data Layer/Table (3 of 5)
  Table Name: h483ns_seawater_intrusion_vulnerability_values
  Description: ArcGIS geodatabase polygon feature class - salt water intrusion vulnerability
  Metadata Link: http://novascotia.ca/natr/meb/download/dp483ater.asp
 
Data Layer/Table (4 of 5)
  Table Name: h483ns_seawater_intrusion_vulnerability_htm_evaluation
  Description: ArcGIS geodatabase polygon feature class - salt water intrusion vulnerability divided into HML (High-Moderate-Low)
  Metadata Link: http://novascotia.ca/natr/meb/download/dp483athml.asp
 
Data Layer/Table (5 of 5)
  Table Name: h483nser_hml.kmz
  Description: KMZ file - salt water intrusion vulnerability divided into HML (High-Moderate-Low)
  Metadata Link: http://novascotia.ca/natr/meb/download/dp483athml.asp


 
Distribution Information

  Description: Downloadable Data
  Available: since 2013
  Liability:

The DATA is provided to the USER on an "as is" basis, without warranties of any kind, express or implied.

The entire risk as to the quality and accuracy of the DATA is with the USER and the USER shall use his/her own judgment in making use of the DATA or drawing conclusions based upon it.

DNR shall not be liable to the USER, his/her clients, servants, agents, contractors, assigns, or to any other person for any loss or damage of any kind including personal injury or death arising from the use of the DATA or accompanying written materials, or from errors, deficiencies or faults therein, whether such damage is caused by negligence or otherwise. If errors or omissions are found in the DATA, the USER will notify DNR.

The terms and conditions of the license accompany the downloaded digital product.

  Technical Prerequisite: In order to view our digital files on your computer, you require mapping software (e.g. ArcGIS, ArcInfo, ArcView, MapInfo, AutoCAD). If you do not have this software, ESRI provides two free Map Viewer called ArcExplorer2 and ArcExplorer4 which you can download over the Internet. ArcExplorer2 works with our "E00", "SHP", "JPG", "SID" and "TIF" files, while ArcExplorer4 worked with our SHP, TIF, JPG and web services. The "TIF" and "JPG" image file formats can be viewed in a number of graphics and image packages including CorelDraw and Paint Shop Pro. The MRSID "SID" images can be viewed in an increasing number of image packages as well as with a free MrSID viewer supplied by LizardTech. Links for these and other map viewers can be found at the bottom of http://novascotia.ca/natr/meb/download/gis-data-maps.asp. Data Formats MRB provides its digital data products in a number of formats. You can find our more information on these format and how to use them at http://novascotia.ca/natr/meb/download/dpformat.asp. Fonts A number of DNR or GSC fonts may be required to properly view our data sets in an ArcMap project or to view the hard copy maps in a PDF format (normally the fonts will be embedded in the PDF). The fonts required for a particular data set may be found in the c:\nsdnr\dp999v9XX\d999YY\arcmap\fonts directory on your computer after you download the data set. A complete set of all of our fonts will be installed in the c:\nsdnr\fonts directory which is automatically installed and updated with our digital products. In order to see a complete list of fonts that are used and to download the DNR and GSC fonts from our website please go to http://novascotia.ca/natr/meb/download/dpinfo.asp. Any of these fonts can be installed on your computer by using going to Start - Settings - Control Panel - Fonts - File - Install. ArcMap Project Information Our SHP products include an ArcMap project which have all of the shapefiles symbolized and tables loaded with link and joins already created. This project uses relative paths so it should be drive and path independent. It can be found in the c:\data_set_id\arcmap\project directory. ArcView Project Information Our SHP products include an ArcView project which have all of the shapefiles symbolized and tables loaded with link and joins already created. This project uses relative paths so it should be drive and path independent. It can be found in the c:\data_set_id\arcview\project directory. ArcExplorer Project Information We have also included an ArcExplorer 2 project (.aep) and an ArcExplorer 4 (.axl) project for this data set that can be found in the c:\data_set_id\arcexpl directory. The shapefiles are already loaded and have limited symbolization, any related tables are not loaded. The AEP project uses relative paths and should be no problem using it without any changes. The AXL project includes a string "#DPMEPATH#" which you will need to search for and replace with your drive letter and a colon (ex: c:) in order to make the project work. Please note the if you do not install the data set using the default path you may need to replace other parts of the reference to the path in the AXL. Hotlinks In order to use the hotlink feature within ArcView 3.x in you may need to load MRB's Hotlink Anything extension which may be located in the arcview/ext directory along with documentation. You may also need to set the variable MEBGIS_HOME on your system to the location of the data set on your system. The SHP product provides an ArcView project set up with the hotlinks working. Some modifications to the HOTLINK field in the database tables or in the HLFILES may be required to make the hotlink work properly. Knowledge of ArcView and hotlinks may be required to make this work properly. A feature called hotlinks is used in ArcView to link a feature such as a mineral occurrence or cross section to a single text file, image or website etc. For features that we want to link multiple items or documents to we have developed our own hotlink extension for ArcView 3.x called "Hotlink Anything". The extension and documentation on how to install the extension, and set the required MEBGIS_HOME variable to the location of the data set on your system is included in the x:\nsgov\dig_prod_num\data_set_id\arcview\ext directory (example - c:\nsgov\dp305v1sh\g118a\arcview\ext) assuming that you used our default directories when downloading the data. The SHP product provides an ArcView project set up with the hotlinks working. Some modifications to the HOTLINK field in the database tables or in the HLFILES.TXT file may be required to make the hotlink work properly. Knowledge of ArcView and hotlinks may be required to make the native hotlink utility or our extension work properly Problems and Limitations Problems have been reported trying to import ARC E00 files into ArcView on Windows 95 computers. Related tables do not import into ArcView. It is not a problem on UNIX, Windows 3.1 or Windows NT, or Windows 2000 platforms. If you experience this problem you can use our DXF/DBF product which contains the tables in dBase format. dBase files can be imported into ArcView. Geological maps and associated digital products are intended for use at the published scale of the map.
  Ordering Fee: Free
  Instructions: The dataset can be downloaded from the internet
  Distribution Contact:
    See contact information
 
Digital Form: (1 of 3)
  format name: ArcGIS Shapefile (SHP)
  format version: 10.0
  format specification: dp483v1sh.exe
  Transfer Size: 5.6 MB
  Dataset Size: 56.4 MB
  Information Content: Contains data pertaining to salt water intrusion vulnerability.
  Decompression Technique: self extracting ZIP file
  Online Transfer: http://novascotia.ca/natr/meb/download/dp483.asp
 
Digital Form: (2 of 3)
  format name: ArcGIS Geodatabase (FGDB)
  format version: 10.0
  format specification: dp483v1gd.exe
  Transfer Size: 6.6 MB
  Dataset Size: 55.1 MB
  Information Content: Geodatabase containing feature classes pertaining to salt water intrusion vulnerability.
  Decompression Technique: self extracting .ZIP file
  Online Transfer: http://novascotia.ca/natr/meb/download/dp483.asp
 
Digital Form: (3 of 3)
  format name: KML\KMZ
  format version: 2.2
  format specification: dp483v1km.exe
  Transfer Size: 2.4 MB
  Dataset Size: 2.7 MB
  Information Content: Contains data pertaining to salt water intrusion vulnerability.
  Decompression Technique: self extracting .ZIP file
  Online Transfer: http://novascotia.ca/natr/meb/download/dp483.asp


 
Metadata Reference

  Creation Date: 20130708
  Metadata Standard: FGDC Content Standards for Digital Geospatial Metadata
  Standard Version: FGDC-STD-001-1998
  Metadata Language: English
  Time Convention: local time
  Access Constraints: none
  User Constraints: None
  Security Classification System: None
  Security Classification: Unclassified
  Security Handling Description: None
  Metadata Contact:
    See contact information