Shaded Relief Image of the North Mountain Area, Nova Scotia

Metadata for DP ME 455, Shaded Relief Image Derived from a 5 m LiDAR Bare-Earth Digital Elevation Model of the North Mountain Area, Digby, Annapolis and Kings Counties, Nova Scotia

Table Of Contents




Identification Information

Citation Information
  Title: DP ME 455, Shaded Relief Image Derived From a 5 m LiDAR Bare-Earth Digital Elevation Model of the North Mountain Area, Digby, Annapolis and Kings Counties, Nova Scotia
  Originator: T. L. Webster
  Publication Date: 2010
  Edition: 1
  Data Type: raster digital data
  Series: Digital Product
  Issue Identification: DP ME 455
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
  Publication Place: Halifax, Nova Scotia, Canada
  Online Linkage: https://novascotia.ca/natr/meb/download/dp455.asp
 
Data Description
  Abstract: This shaded relief image is derived from a LiDAR bare-earth DEM gridded at 2m cell size from a composite of several individual surveys dating back to 2000. The 2 m cells were resampled to a 5 m grid that the shaded relief image was constructed from. The shading azimuth was 315 with a 45 elevation angle. No vertical exaggeration has been applied. The original DEM processing and creation of the shaded relief image was done by Tim Webster at the Applied Geomatics Research Group (AGRG) and supplied to MRB in an ESRI geodatabase raster format. This image was used by Dan Kontak to assist in the mapping of the North Mountain Basalt flows and the creation of MRB digital product DP ME 438 and Open File Maps 2010-7 to 2010-12. The shaded relief image reveals details of the morphology of the bedrock and surficial materials. The different North Mountain basalt flow units have variable resistance to erosion with the Middle Flow Unit (MFU) being much weaker than the Lower Flow Unit (LFU) and Upper Flow Unit (UFU). The differing erosion rates shows up on the shaded relief image and allows the flows to be mapped more accurately.
  Purpose: This high resolution image was used to help interpret the geology of the basaltic rocks of the North Mountain Formation.
  Supplemental Information: Data Set ID =d455no; Data Class = lidar; Project ID = North Mountain
  Language English
  Data Credit: Nova Scotia Department of Natural Resources
  Data Environment ArcInfo 9.3 on a SUN Ultra Sparc 60 workstation running Solaris 8
  Native Data Set Format file geodatabase raster
 
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) 902-424-7735
    Staff Contact
    Available: 9:00 a.m. to 5:00 p.m. AST Monday - Friday
 
Time Period Information
  Beginning Date: 2000
  Ending Date: 2006
  Currentness Reference: ground condition
 
Data Status
  Progress: Complete
  Update Frequency: As needed
 
Spatial Domain
  West Coordinate: -66.55
  East Coordinate: -64.18
  North Coordinate: 45.29
  South Coordinate: 44.18
  G-Poly coordinates
  G-Poly Pair (1 of 5) -66.55, 45.29
  G-Poly Pair (2 of 5) -64.18, 45.29
  G-Poly Pair (3 of 5) -64.18, 44.18
  G-Poly Pair (4 of 5) -66.55, 44.18
  G-Poly Pair (5 of 5) -66.55, 45.29

Keywords
  Theme Keywords: digital elevation model; Downloadable Data; digital products; shaded relief; Elevation and Derived Products; Shaded Relief DEM; DEM Images; surficial geology / geomorphology
  Place Keywords: Nova Scotia; North Mountain; Digby County; Annapolis County; Kings County
 
Access and Usage Information
  Access Constraints: The access constraints are contained in the License Agreement which the user must agree to before using the data. A copy of the License Agreement 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 NR&R

and the recipient of the data hereinafter called the USER

For good consideration, the receipt of which is acknowledged, NR&R licences the non-exclusive use of the digital DATA to the USER on the following terms and conditions.

TERMS AND CONDITIONS

NR&R remains the owner of the DATA and is not assigning copyright privileges to the USER.

The USER agrees to acknowledge NR&R 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.

NR&R 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.

NR&R 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 NR&R.

This Licence is the entire Agreement between the parties and supersedes all previous Agreements or understandings between NR&R 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 NR&R 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 at this time
  Description: unknown
 
Security Information
  Classification System: none
  Classification: Unclassified
  Handling Description: none
 
Cross Reference Information
 
Cross Reference (1 of 9)
  Title: DP ME 438, Version 1, 2010, Digital Geological Data Generated as Part of the North Mountain Basalt Mapping Project (2000-2004), from Brier Island to Cape Split, Digby, Annapolis and Kings Counties, Nova Scotia
  Originator: D. J. Kontak, T. L. Webster, B. E. Fisher, J. D. MacNeil, J. S. McKinnon, A. L. Ehler
  Publication Date: 2010
  Data Form: vector digital data
  Online Linkage: https://novascotia.ca/natr/meb/download/dp438.asp
  Series: Digital Product
  Issue: DP ME 438
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
 
Cross Reference (2 of 9)
  Title: Index Map for the Bedrock Geology Maps of Basaltic Rocks of the North Mountain Formation from Brier Island to Cape Split, Nova Scotia
  Originator: D. J. Kontak, T. L. Webster
  Publication Date: 2010
  Data Form: map
  Online Linkage: https://novascotia.ca/natr/meb/download/mg/ofm/htm/ofm_2010-007.asp
  Series: NSNR&R MRB Open File Map
  Issue: OFM ME 2010-7
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
 
Cross Reference (3 of 9)
  Title: Bedrock Geology Map of Basaltic Rocks of the North Mountain Formation from Brier Island to Sandy Cove, Part of NTS Sheets 21A/05, 21B/01, 21B/08 and 21B/09, Digby County, Nova Scotia
  Originator: D. J. Kontak, T. L. Webster
  Publication Date: 2010
  Data Form: map
  Online Linkage: https://novascotia.ca/natr/meb/download/mg/ofm/htm/ofm_2010-008.asp
  Series: NSNR&R MRB Open File Map
  Issue: OFM ME 2010-8
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
 
Cross Reference (4 of 9)
  Title: Bedrock Geology Map of Basaltic Rocks of the North Mountain Formation from Centreville to Bogart Lake, art of NTS Sheets 21A/05, 21A/12, 21A/13, 21B/08 and 21B/09, Annapolis and Digby Counties, Nova Scotia
  Originator: D. J. Kontak, T. L. Webster
  Publication Date: 2010
  Data Form: map
  Online Linkage: https://novascotia.ca/natr/meb/download/mg/ofm/htm/ofm_2010-009.asp
  Series: NSNR&R MRB Open File Map
  Issue: OFM ME 2010-9
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
 
Cross Reference (5 of 9)
  Title: Bedrock Geology Map of Basaltic Rocks of the North Mountain Formation from Delaps Cove to Port Lorne, Part of NTS Sheets 21A/11, 21A/12, 21A/13 and 21A/14, Annapolis County, Nova Scotia
  Originator: D. J. Kontak, T. L. Webster
  Publication Date: 2010
  Data Form: map
  Online Linkage: https://novascotia.ca/natr/meb/download/mg/ofm/htm/ofm_2010-010.asp
  Series: NSNR&R MRB Open File Map
  Issue: OFM ME 2010-10
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
 
Cross Reference (6 of 9)
  Title: Bedrock Geology Map of Basaltic Rocks of the North Mountain Formation from East Arlington to Harbourville, Part of NTS Sheets 21A/14, 21A/15, 21H/02 and 21H/03, Annapolis and Kings Counties, Nova Scotia
  Originator: D. J. Kontak, T. L. Webster
  Publication Date: 2010
  Data Form: map
  Online Linkage: https://novascotia.ca/natr/meb/download/mg/ofm/htm/ofm_2010-011.asp
  Series: NSNR&R MRB Open File Map
  Issue: OFM ME 2010-11
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
 
Cross Reference (7 of 9)
  Title: Bedrock Geology Map of Basaltic Rocks of the North Mountain Formation from Black Rock to Cape Split, Part of NTS Sheets 21H/01, 21H/02, 21H/07 and 21H/08, Kings County, Nova Scotia
  Originator: D. J. Kontak, T. L. Webster
  Publication Date: 2010
  Data Form: map
  Online Linkage: https://novascotia.ca/natr/meb/download/mg/ofm/htm/ofm_2010-012.asp
  Series: NSNR&R MRB Open File Map
  Issue: OFM ME 2010-12
  Publication Place: Halifax, Nova Scotia, Canada
  Publisher: Nova Scotia Department of Natural Resources, Mineral Resources Branch
 
Cross Reference (8 of 9)
  Title: The application of LiDAR-derived DEM analysis for geological mapping: An example from the Fundy Basin, Nova Scotia, Canada
  Originator: T. L. Webster, J. B. Murphy, J. C. Gosse, I. Spooner
  Publication Date: 2006
  Data Form: document
  Series: Canadian Journal of Remote Sensing
  Issue: Vol. 32, No. 2, pp. 173-193
 
Cross Reference (9 of 9)
  Title: Mapping Subtle Structures with LiDAR: Flow Units and Phreatomagmatic Rootless Cones in the North Mountain Basalt, Nova Scotia
  Originator: T. L. Webster, J. B. Murphy, J. C. Gosse
  Publication Date: 2006
  Data Form: document
  Series: Canadian Journal of Earth Sciences
  Issue: Vol. 43, pp. 157-176



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, plus there are errors added by the process of gridding the data.

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 from it.
 
Processing Step Information
 
Processing Step (1 of 5)
  Description: LiDAR bare-earth DEM gridded at 2m cell size from a composite of several individual surveys dating back to 2000. The Annapolis Valley section of the North Mountain was acquired by the Applied Geomatics Research Group with funding from the Canada Foundation for Innovation (2000, 2003, 2004). The Digby neck, Long Island, and Brier Island sections were acquired by the Applied Geomatics Research Group with funding from the Geological Survey of Canada (Atlantic), Natural Resources Canada (2006). The vertical accuracy of the DEM is better than 30 cm based on survey grade GPS points. The 2 m cells were resampled to a 5 m grid that the shaded relief image was constructed from.
  Software and Version: unknown
  Date: 2000 - 2005
  Contact Person: (see Contact Information)
 
Processing Step (2 of 5)
  Description: Tim created a number of colour and black and white shaded relief images that were used by Dan Kontak and Tim to help map the North Mountain Basalt Flows. Ti wrote the following description of howe LiDAR is used to do this for the North Mountain Basalt.

LiDAR is an active remote sensing technology that stands for Light Detection and Ranging. An aircraft is equipped with a laser ranging system that directs a narrow laser pulse of light towards the earth's surface and measures the two-way travel time of the light that is reflected from the ground back to the aircraft, and thus the range or distance to the ground. By precisely measuring the position of the aircraft (GPS inertial navigation system), the laser point elevations are derived. The laser beam typically has a footprint diameter of 20-30 cm on the ground, depending on flying height, and only a portion of that beam has to make it through the gaps in the forest canopy and hit the ground to be reflected back to the aircraft. Thus LiDAR systems typically give more detailed measurements of the ground in forested areas than traditional photogrammetric techniques for measuring elevation. The LiDAR cloud is then examined and the 'ground' points are classified. These elevation points are then used to construct a "bare-earth" digital elevation model (DEM) that reveals details of the morphology of the bedrock and surficial materials.

The different North Mountain basalt flow units have variable resistance to erosion with the MFU being much weaker than the LFU and UFU. The thinner and highly amyguloidal flows associated with the MFU make it much more susceptible to erosion. These subtle differences in the flow units resistance to erosion is reflected in the details of the LiDAR shaded relief map. The MFU is characterized by several terraces that represent individual flow tops. The LFU and UFU are characterized as a massive smooth flow surfaces that have lineaments that represent conjugate jointing at multiple scales. Areas of thicker glacial till obscure the flow surfaces and the terrain appears smoother on the shaded relief map. These smooth thicker till areas are also the locations of most of the farm land along the North Mountain as a result of the soil development from the till.
  Software and Version: unknown
  Date: 2004 - 2009
  Contact Person: (see Contact Information)
 
Processing Step (3 of 5)
  Description: The final shaded relief image was created by Tim Webster to be used for shading of the North Mountain Basalt Flows. The 2 m cells of the bare-earth DEM were resampled to a 5 m grid that the shaded relief map was constructed from. The shading azimuth was 315 with a 45 elevation angle. No vertical exaggeration has been applied.
  Software and Version: ArcGIS Geodatabase
  Date: 2009
  Contact Person: (see Contact Information)
 
Processing Step (4 of 5)
  Description: Brian Fisher created a JPG image from the geodatabase raster version supplied by Tim Webster. It was exported from the geodatabase as an 8 bit unsigned JPG image. Both images were renamed to e455no_s3514505_005m to meet the MRB naming conventions and the images were re-projected from NAD83 to NAD83 CSRS.
  Software and Version: ArcGIS 9.3.1
  Date: December 2010
  Contact Person: (see Contact Information)
 
Processing Step (5 of 5)
  Description: On December 16, 2010 DP ME 455, Shaded relief image derived from a 5 m LiDAR bare-earth Digital Elevation Model of the North Mountain area was released. It consisted of two image products one in an ESRI ArcGIS geodatabase 9.3.1 format and the other in JPG format.
  Software and Version: ArcGIS 9.3.1.
  Date: December 2010
  Contact Person: (see Contact Information)


Spatial Data Organization Information

  Spatial Reference Method: Raster
  Raster Type: Pixel
  Row Count: 25956
  Number of Bands: 1
  Cell Size X Direction: 5
  Cell Size Y Direction: 5
  Bits Per Pixel: 16
  Image Format: FGDBR
  Image Colormap: absent
  Compression Type: LZ77


Spatial Reference Information

  Data Projection: Universal Transverse Mercator
  Zone: 20
  Scale Factor at Central Meridian: 0.9996
  Longitude at Central Meridian: -63.0
  Latitude of Projection Origin: 0
  False Easting: 500000
  False Northing: 0
  Geographic Coordinate System: GCS_North_American_1983
  Projected Coordinate System: NAD_1983_UTM_Zone_20N
  Datum: D_North _American_1983
  Ellipsoid: Geodetic Reference System 80
  Semi-Major Axis: 6378137.0
  Denominator Of Flattening Axis: 288.257222



 
Entity Attribute Information

Overview Description
  Dataset Overview: The data set consists of a geodatabase containing a shaded relief image and a JPG image of the same area.
 
Detailed Description
 
Data Layer/Table (1 of 2)
  Table Name: e455no_3154500_005m
  Description: ESRI Geodatabase Image: shaded relief image (az - 315, alt - 45, Z - 0) with a 5m cell size
 
Data Layer/Table (2 of 2)
  Table Name: e455no_3154500_005m.jpg
  Description: JPG Image: shaded relief image (az - 315, alt - 45, Z - 0) with a 5m cell size


 
Distribution Information

  Description: Downloadable Data
  Digital Custom Order Process: Digital Product Number = DP ME 455
  Available: December 2010
  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.

NR&R 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 NR&R.

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 https://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 https://novascotia.ca/natr/meb/download/dpformat.asp.
  Distribution Contact: (see Contact Information)
  Ordering Fee: Free
  Instructions: The data set can be downloaded over the Internet
  Distribution Contact:
    see contact information
 
Digital Form: (1 of 2)
  format name: ArcInfo Geodatabase (GDB)
  format version: 9.3.1
  format specification: dp455v1gd.exe
  Transfer Size: 134 MB
  Dataset Size: 135 MB
  Information Content: Shaded relief image contained within an ESRI geodatabase
  Decompression Technique: self extracting DOS based pkzip archive file
  Online Transfer: https://novascotia.ca/natr/meb/download/dp455.asp
 
Digital Form: (2 of 2)
  format name: JPG
  format specification: dp455v1jg.exe
  Transfer Size: 24.5 MB
  Dataset Size: 25 MB
  Information Content: JPEG version of shaded relief image
  Decompression Technique: self extracting DOS based pkzip archive file
  Online Transfer: https://novascotia.ca/natr/meb/download/dp455.asp


Metadata Reference

  Creation Date: 20101217
  Metadata Standard: FGDC Content Standards for Digital Geospatial Metadata
  Standard Version: FGDC-STD-001-1998
  Metadata Language: English
  Time Convention: local time
  Review Date: As required
  Access Constraints:
none
  User Constraints: none
  Security Classification System: none
  Security Classification: Unclassified
  Security Handling Description: none
  Metadata Contact:
    see contact information
  Metadata Contact: (see Contact Information)