ElevationDEM_DEMHE0p7M2014

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator:
Vermont Center for Geographic Information (VCGI), NRCS, USGS, VT ANR, VTRANS, University of Vermont Spatial Analysis Lab (UVM-SAL), and other members of the VCGI Lidar Program, i.e., "VTeam Lidar".
Publication_Date: 20170720
Publication_Time: As Updated.
Title: ElevationDEM_DEMHE0p7M2014
Edition: 2017
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name:
Quality Level 2 Lidar Hydro Enforced Digital Elevation Model (DEMHE) data from the 3D Elevation Program (3DEP).
Issue_Identification: 2017A
Publication_Information:
Publication_Place: Montpelier VT 05620-2001
Publisher: VT Center for Geographic Information
Other_Citation_Details: Tile Structure - Varies by Lidar "Collection"
Description:
Abstract:
This metadata applies to the following collection area(s): Eastern VT 2014 0.7m and Hydro Enforced Digital Elevation Model (DEMHE) dataset. This metadata complies with the VT Geodata Portal format and applies to thematic layers with the same resolution (RESCLASS), e.g., 0p7m, 1m etc., and may include multiple data "collection" efforts. For original vendor metadata and reports containing specific details on each data collection, e.g., 'point cloud' flight dates, nominal pulse spacing, RMSEz and more, navigate to https://drive.google.com/drive/folders/1BFtJiwqPrO5iJ_HeSS8TeSrP-6xDo7RI. NOTE: The QL2 (0.7m) collections FOCUS reports contain myriad collection details in report form. The equivalent for the older QL3 collections are generally the “Project Reports". Available DEMs vary by collection and can include the following 'hydro treatment' DEMs: 1) Elevation*_DEM_*: ("pure" Bare Earth) - no treatments, i.e., a bare ground surface without objects like vegetation and buildings; 2) Elevation*_DEMHF_*: (DEM Hydro-Flattened)- Cartographic/Aesthetic enhancement of (topographic) surface by removal of Lidar artifacts in water. Constant elevation for waterbodies and suitable for contouring. Building voids remain due to cost; and 3) Elevation*_DEMHE_*: (DEM Hydro-Enforced): A (hydrologic) surface with drain connectivity used by engineers in Hydraulic and Hydrologic (H&H) modeling. NOT for traditional mapping (contours, etc.). Like DEM_HF but added Single Line Breaklines: Pipelines, Culverts, Underground Streams, etc. For an overview of the "VCGI Lidar Program" please see "https://vcgi.vermont.gov/data-and-programs/lidar-program". For an overview on the various "hydro treatments" see the USGS powerpoint "Hydro Treatments of Lidar-Derived DEMs" under the RESOURCES section of the Lidar Initiative homepage and for complete details see the appropriate section of the "Lidar Base Specification" (https://pubs.usgs.gov/tm/11b4/pdf/tm11-B4.pdf).
Purpose:
To provide Vermont with the best available, Lidar based DEM and derived datasets. The VCGI Lidar Program is a collaboration of both public and private interests working towards the common goal of full state Lidar coverage. Ultimately, each Lidar dataset becomes integrated with the U.S. Geological Survey (USGS) 3D Elevation Program (3DEP) national data repository (3DEP abstract - https://pubs.usgs.gov/circ/1399/). Implemented in 2012 to address the growing need for high quality topographic data, the 3DEP absorbed its predecessor, the National Elevation Dataset (NED). Lidar in Vermont includes two "Elevation Quality Levels (QL)": "QL2" and "QL3" (See the "Resources: Lidar Data Quality Levels (QLs)" link for details at - "https://vcgi.vermont.gov/data-and-programs/lidar-program").
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20141111
Ending_Date: 20151104
Currentness_Reference: Ground Conditions
Status:
Progress: In work
Maintenance_and_Update_Frequency: Unknown
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.454162
East_Bounding_Coordinate: -71.465281
North_Bounding_Coordinate: 45.018361
South_Bounding_Coordinate: 42.722789
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: 3D Elevation Program (3DEP)
Theme_Keyword: grid
Theme_Keyword: Lidar
Theme_Keyword: Light Detection And Ranging
Theme_Keyword: LAS Point Cloud
Theme_Keyword: high-resolution
Theme_Keyword: topography
Theme_Keyword: USGS
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: DEM
Theme_Keyword: Digital elevation model
Theme_Keyword: Hydro-Enforced
Theme_Keyword: elevation
Theme_Keyword: Digital terrain model
Theme_Keyword: Surface Model
Theme_Keyword: Hydrologic
Theme_Keyword: Hydrologic Modeling
Theme_Keyword: Drainage Area
Theme_Keyword: Hydrology
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: 010
Theme_Keyword: geoscientificInformation
Theme_Keyword: 008
Theme_Keyword: location
Theme_Keyword: 013
Theme:
Theme_Keyword_Thesaurus: American Society of Photogrammetry and RemoteSensing
Theme_Keyword: National Standards for Spatial Digital Accuracy (NSSDA)
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4,): Washington, D.C., National Institute of Standards and Technology
Place_Keyword: United States
Place_Keyword: U.S.
Place_Keyword: US
Place_Keyword: USA
Place_Keyword: Vermont
Place_Keyword: VT
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2014
Access_Constraints:
VCGI and the State of VT make no representations of any kind, including but not limited to the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the data.
Use_Constraints:
None. However, users should be aware that no assessment of the accuracy of DEM data or data products has been made by VCGI. Users should also be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no Longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of it's limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: VT Center for Geographic Information
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 1 National Life Dr, Dewey Building, 2nd Floor
City: Montpelier
State_or_Province: VT
Postal_Code: 05620-2001
Country: USA
Contact_Voice_Telephone: (802) 585-0820
Contact_TDD/TTY_Telephone: None
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address: vcgi@vermont.gov
Hours_of_Service: 9am - 5pm, M-F
Data_Set_Credit:
Each Lidar "collection" effort is a collaboration of federal, state, regional and local partners.
Security_Information:
Security_Classification_System: N/A
Security_Classification: Unclassified
Security_Handling_Description: No Security Considerations
Native_Data_Set_Environment: ESRI ArcGIS software
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Logical_Consistency_Report:
Deliverables were tested by vendors for both vertical and horizontal accuracy. For each "collection extent" provided by a vendor, all data is seamless from one tile to the next, no gaps or no data areas.
Completeness_Report:
Datasets contain complete coverage of each individual data collection area (extent) - see the VCGI Lidar data product web page for details - https://vcgi.vermont.gov/data-and-programs/lidar-program.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
RMSEz in open terrain is 9.25cm for QL2. See VCGI Lidar data product web page link above for details by collection extent.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Quantum Spatial
Publication_Date: 2015
Title: 22399_EasternVT_HydroEnforcedBareEarthRasterDEM_Metadata;
Other_Citation_Details:
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20141024
Ending_Date: 20150428
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: VT_Eastern_2014
Source_Contribution:
This data source was used to populate the lidar point cloud data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: VT Center for Geographic Information
Publication_Date: 20170720
Publication_Time:
Title: ElevationDEM_DEMHE
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place:
Publisher: 3D Elevation Program (3DEP)
Source_Scale_Denominator:
Type_of_Source_Media: download & web services
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:
Time_of_Day: Unknown
Source_Currentness_Reference: Publication Date
Source_Citation_Abbreviation:
Source_Contribution:
Process_Step:
Process_Description:
Reimported all original vendor DEM data delivered in a tile format at contracted resolution to an updated naming convention (VIL Backend Design Document v.5). Subsequently regenerated all derivative data (ASPECT, HILSHD, Ndsm & SLOPE).
Process_Date: 1/21/2017
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Mike Brouillette
Contact_Organization: VCGI
Process_Step:
Process_Description:
Updated metadata format using VT GeoData Portal metadata template. Loaded data into Vermont Geographic Information System (VGIS) warehouse.
Process_Date: 2/14/2017
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ivan Brown
Contact_Organization: VCGI
Process_Step:
Process_Description: Updated metadata with specifics related to Hydro Enforced DEMs.
Process_Date: 7/19/2017
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Mike Brouillette
Contact_Organization: VCGI
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Raster
Direct_Spatial_Reference_Method: Raster
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 4400
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999964285714286
Longitude_of_Central_Meridian: -72.5
Latitude_of_Projection_Origin: 42.5
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001
Ordinate_Resolution: 0.001
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983 (2011)
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257222101
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.01
Altitude_Distance_Units: meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: raster attributes
Attribute:
Attribute_Label: ObjectID
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: Value
Attribute_Definition: Elevation in Meters
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 28.9
Range_Domain_Maximum: 1338.99
Attribute_Units_of_Measure: Meters
Overview_Description:
Entity_and_Attribute_Overview:
The single attribute of this Floating Point type image is elevation in meters.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: VT Center for Geographic Information
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 1 National Life Dr, Dewey Building, 2nd Floor
City: Montpelier
State_or_Province: VT
Postal_Code: 05620-2001
Country: USA
Contact_Voice_Telephone: (802) 585-0820
Contact_TDD/TTY_Telephone: None
Contact_Facsimile_Telephone:
Contact_Electronic_Mail_Address: vcgi@vermont.gov
Hours_of_Service: 9am - 5pm, M-F
Resource_Description: ElevationDEM_DEMHE0p7M2014
Distribution_Liability:
VCGI and the State of Vermont make no representations of any kind, including but not limited to the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ERDAS Imagine .img format
Format_Specification: ERDAS Imagine
Format_Information_Content: geospatial data
File_Decompression_Technique: Image viewer
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://drive.google.com/drive/folders/1ZOq-tTI2m_AI0-lkX3G6C2QBco8ZEYX_
Access_Instructions:
Download compressed (ERDAS Imagine) from web site. Uncompressed Imagine datasets available on offline media.
Offline_Option:
Offline_Media: USB drive
Fees:
No charge when downloading compressed (ERDAS Imagine) from the internet, and when no custom processing is required. Charge for offline media options (uncompressed GeoTIFF).
Ordering_Instructions: Send an email describing data request to vcgi@vermont.gov
Turnaround: About 5 days.
Custom_Order_Process: Send an email describing data request to vcgi@vermont.gov
Technical_Prerequisites: GIS Software
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20170720
Time_of_Day: Unknown
Metadata_Reference_Information:
Metadata_Date: 20170720
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: VT Center for Geographic Information
Contact_Person: GIS Database Administrator
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 1 National Life Dr, Dewey Building, 2nd Floor
City: Montpelier
State_or_Province: VT
Postal_Code: 05620-2001
Country: USA
Contact_Voice_Telephone: (802) 585-0820
Contact_TDD/TTY_Telephone: None
Contact_Facsimile_Telephone:
Metadata_Standard_Name: FGDC Content Standards for Digital Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: Local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Security_Information:
Metadata_Security_Classification_System: N/A
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: No security considerations
Generated by mp version 2.9.22 on Thu May 25 13:21:03 2023