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Layer: Contours (ID: 1)

Name: Contours

Display Field: Elevation

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: These lidar data are processed Classified LAS 1.4 files, formatted to 134 individual Township and Range tiles.Geographic Extent: Logan and Oklahoma Counties, Oklahoma covering approximately 128 square miles. Dataset Description: The lidar project called for the Planning, Acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.71 meters. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 2.1.The data was developed based on a horizontal projection/datum of NAD83, State Plane, Feet and vertical datum of NAVD88 (Geoid12B), Feet. Lidar data was delivered as processed Classified LAS 1.4 files, formatted to 134 individual Township and Range tiles.Ground Conditions: Lidar was collected in early 2020, while no snow was on the ground and rivers were at or below normal levels. In order to post process the lidar data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Sanborn Map Company, Inc., utilized a total of 2 ground control points that were used to calibrate the lidar to known ground locations established throughout the project area.An additional 26 independent accuracy check points, 21 in Bare Earth and Urban landcovers (21 NVA points), 5 in Tall Grass and Brushland/Low Trees categories (5 VVA points), were used to assess the vertical accuracy of the data. These check points were not used to calibrate or post process the data.This data set was tested to meet ASPRS Positional Accuracy Standard for Digital Geospatial Data (2014) for a 5cm RMSEz Vertical Accuracy Class. Actual NVA accuracy was found to be RMSEz = 0.227ft, equating to +/- 0.444ft at 95% confidence level. Actual VVA accuracy was found to be +/- 0.226ft at the 95th percentile.

Copyright Text: Sanborn Map Company, Inc. (Producer of the dataset) City of Edmond Information Technology - GIS Team (hosting of the dataset in an Enterprise Geodatabase)

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 2400.0

Max Scale: 0.0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: true

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:
Drawing Info: Advanced Query Capabilities:
HasZ: true

HasM: true

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: Type

Fields: Types:
Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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