Genesee_2015_2ft_LiDAR_Contours

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: State of Michigan (SOM) Center for Shared Solutions
Publication_Date: 20160531
Title: Genesee_2015_2ft_LiDAR_Contours
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place:
111 S. Capitol Avenue, Romeney Building - 10th Floor, Lansing, MI, 48933, US
Publisher: State of Michigan (SOM) Center for Shared Solutions
Description:
Abstract:
Dataset Description: This dataset contains 2-foot elevation contours presented as feature classes in an Esri ArcGIS 10.3 File Geodatabase. The contours were derived from Bare-Earth digital elevation models (DEMs) created from QL2 LiDAR data acquired as part of the State of Michigan MiSAIL program. Source Data Description: MI 2015-2017 LiDAR project called for the Planning, Acquisition, processing and derivative products of LIDAR data to be collected at a nominal pulse spacing (NPS) of 0.7 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base LIDAR Specification, Version 1.2. The data was developed based on a horizontal projection/datum of Michigan State Plane South, NAD83(2011), international feet and vertical datum of NAVD1988 (GEOID12A), international feet. Deliverables included classified LAS, Raw LAS, Bare-Earth hydro-flattened DEMs, Breaklines and Intensity images. Ground Conditions: LiDAR was collected in spring or fall, while no snow was on the ground and rivers were at or below normal levels. For more information, see specific metadata information for LiDAR deliverables.
Purpose:
Data created for use in planning, design, assessment, research, general mapping and hydrologic modeling.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20151114
Ending_Date: 20151116
Currentness_Reference: Bare-earth ground condition for Genesee County Michigan.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -83.941512
East_Bounding_Coordinate: -83.441257
North_Bounding_Coordinate: 43.227920
South_Bounding_Coordinate: 42.772287
Keywords:
Theme:
Theme_Keyword_Thesaurus: EPA GIS Keyword Thesaurus
Theme_Keyword: Land
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Contours
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Bare Earth
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: elevation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Michigan
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Genesee County
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: November 2015
Access_Constraints:
This data may be used by the requested party for stated purposes and should not be re-distributed.
Use_Constraints:
This data is for planning purposes only and should not be used for legal or cadastral purposes. Any conclusions drawn from analysis of this information are not the responsibility of Remote Sensing & GIS or the State of Michigan. Users should be aware that temporal changes may have occurred since this dataset was collected and some parts of this dataset may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Genesee County
Contact_Person: Ken Koleda
Contact_Position: GIS Director
Contact_Address:
Address_Type: mailing and physical
Address: 1101 Beach St.
City: Flint
State_or_Province: MI
Postal_Code: 48502
Country: US
Contact_Voice_Telephone: 810-257-3163
Contact_Electronic_Mail_Address: [email protected]
Data_Set_Credit:
Contour data created by Remote Sensing & GIS Research and Outreach Services, Michigan State University. <http://www.rsgis.msu.edu/>. LiDAR and derived DEM source data created by vendors under contract to the State of Michigan.
Security_Information:
Security_Classification_System: <http://project-open-data.github.io/schema/#accessLevel>
Security_Classification: Unclassified
Security_Handling_Description: Standard Technical Controls
Native_Data_Set_Environment:
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.4.1.5686
Data_Quality_Information:
Logical_Consistency_Report: Topologic Validation of contours to identify overlap errors
Completeness_Report: Complete
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Data were created from Digital Elevation Model data derived from LiDAR data meeting USGS specifications for Quality Level 2 (QL2). From Original Metadata: Horizontal positional accuracy for LiDAR is dependent upon the quality of the GPS/INS solution, sensor calibration and ground conditions at the time of data capture. The standard system results for horizontal accuracy meet or exceed the project specified 1.0 meter RMSE.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Explanation: Contour data compared to input LiDAR data.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Data were created from Digital Elevation Model data derived from LiDAR data meeting USGS specifications for Quality Level 2 (QL2). Data were smoothed and therefore do not match the original data perfectly.
Accuracy information from Original Metadata: For the DEM data derived from the classified point cloud, the FVA, SVA, and CVA were computed. The vertical accuracy was tested with independent survey check points located in various terrain types. These check points were not used in the calibration or post processing of the lidar point cloud data. The survey check points were distributed throughout the block area. Specifications for this project require that the FVA be 9.25 cm (18.13 cm or better @ 95 percent confidence level).
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Explanation:
Contour data were converted to digital elevation model (DEM) data, which was compared to original DEM data to identify variations in elevation values.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Sanborn Map Company
Publication_Date: 20150301
Title: 2015-2017 MiSAIL LiDAR Bare-Earth Digital Elevation Model data
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place:
111 S. Capitol Avenue, Romeney Building - 10th Floor, Lansing, MI, 48933, US
Publisher: State of Michigan (SOM) Center for Shared Solutions
Type_of_Source_Media: hardDisk
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20150301
Ending_Date: 20151130
Source_Currentness_Reference: State of Michigan Counties
Source_Citation_Abbreviation: 2015-2017 MiSAIL LiDAR Bare-Earth Digital Elevation Model data
Source_Contribution:
Bare-Earth Digital Elevation Model (DEM) data. Obtained from the State of Michigan. These data were collected by vendors under contract to the State of Michigan. DEM data meets USGS specifications for QL2 data.
Process_Step:
Process_Description:
2-foot contours and 10-foot contours were generated for each LiDAR tile. Depression contours at a 2-foot interval were created as well for the purpose of attribution. All contours less than 100 feet in length were deleted. Remaining 2-foot contours were then attributed as either intermediate, intermediate_depression, index or index_depression through spatial selection and calculation. Newly attributed 2-foot contours were then smoothed by tile using cartographic generalization tools in Esri ArcGIS 10.3. Final smoothed contours were visually checked for overlap errors. Topology was built for all tiles and errors were repaired where found. Errors included overlapping contours from the smoothing process and gaps between contour tiles. Most errors were repaired by comparing smoothed contours to raw contours and manually editing line vertices. Other errors were repaired through topologic validation tolerances. All tiles were merged to create a county-wide 2-foot contour dataset. In addition, the county-wide 2-foot contour dataset was clipped by survey township (TwnRng) with a 100-meter buffer.
Process_Date: 20160901
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: RS&GIS, MSU
Contact_Person: Robert Goodwin
Contact_Position: Sr. Geospatial Analyst
Contact_Address:
Address_Type: mailing and physical
Address: 673 Auditorium Road
Address: 213 Geography, MSU
City: East Lansing
State_or_Province: MI
Postal_Code: 48824
Contact_Voice_Telephone: (517) 432-0879
Contact_Electronic_Mail_Address: [email protected]
Contact_Instructions: <http://www.rsgis.msu.edu/>
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 394603
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 2011 StatePlane Michigan South FIPS 2113 Ft Intl
Lambert_Conformal_Conic:
Standard_Parallel: 42.1
Standard_Parallel: 43.66666666666666
Longitude_of_Central_Meridian: -84.36666666666666
Latitude_of_Projection_Origin: 41.5
False_Easting: 13123359.58005249
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.00032808398950131233
Ordinate_Resolution: 0.00032808398950131233
Planar_Distance_Units: foot
Geodetic_Model:
Horizontal_Datum_Name: D NAD 1983 2011
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Reference.CSS_SDE_ADMIN.Contours_Genesee_County
Attribute:
Attribute_Label: Contour
Attribute_Definition: Elevation value in feet.
Attribute_Definition_Source: ESRI
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: Type
Attribute_Definition:
Type of contour: Index, Index_Depression, Intermediate, Intermediate_Depression
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: Shape.STLength()
Overview_Description:
Entity_and_Attribute_Overview:
These data contain 2-foot contours that have been edited to improve aesthetic quality while limiting loss of precision and accuracy. Contours have been cartographically-smoothed and all contours whose length was less than 100 feet were removed. Index contours occur every 10 feet. Contours are labeled as either Index, Index_Depression, Intermediate or Intermediate_Depression. This allows for enhanced cartographic representation. Data should not be used for precise analysis requiring survey-level results.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Genesee County
Contact_Person: Ken Koleda
Contact_Position: GIS Director
Contact_Address:
Address_Type: mailing and physical
Address: 1101 Beach St.
City: Flint
State_or_Province: MI
Postal_Code: 48502
Country: US
Contact_Voice_Telephone: 810-257-3163
Contact_Electronic_Mail_Address: [email protected]
Distribution_Liability:
This data is for planning purposes only and should not be used for legal or cadastral purposes. Any conclusions drawn from analysis of this information are not the responsibility of Remote Sensing & GIS or the State of Michigan. Users should be aware that temporal changes may have occurred since this dataset was collected and some parts of this dataset may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations.
Metadata_Reference_Information:
Metadata_Date: 20170915
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: RS&GIS, MSU
Contact_Person: Robert Goodwin
Contact_Position: Sr. Geospatial Analyst
Contact_Address:
Address_Type: mailing and physical
Address: 673 Auditorium Road
Address: 213 Geography, MSU
City: East Lansing
State_or_Province: MI
Postal_Code: 48824
Contact_Voice_Telephone: (517) 432-0879
Contact_Electronic_Mail_Address: [email protected]
Contact_Instructions: <http://www.rsgis.msu.edu/>
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Use_Constraints: None
Generated by mp version 2.9.12 on Fri Sep 15 11:51:09 2017