Name: Waterbodies_LiDAR_2019

Display Field: Feature

Type: Feature Layer

Geometry Type: esriGeometryPolygon

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Is Updatable View: true

Source Schema Changes Allowed: true

Sources

Description: Product: Hydroflattened breaklines covering the Yosemite National Park USGS 3DEP Lidar project area. Geographic Extent: This dataset and derived products encompass an area covering approximately 803,364 acres of the western Sierra Nevada mountain range of Central California. Dataset Description: Dataset Description: Lidar flight line swaths were processed to create 3,437 classified LAS 1.4 files delineated in 1,000m x 1,000m tiles tiles. Each LAS file contains lidar point information, which has been calibrated, controlled, and classified. Breaklines were developed using an algorithm which weights lidar-derived slopes, intensities, and return densities to detect the water's edge. The water's edge was then manually reviewed and edited as necessary. Lakes were assigned a consistent elevation for an entire polygon while rivers were assigned consistent elevations on opposing banks and smoothed to ensure downstream flow through the entire river channel.Additional products include classified LAS files, intensity images, tiled 0.5 meter contours and tiled bare earth surface models. Ground Conditions: Acquisition occurred free of smoke, fog and cloud during a time frame absent of unusual flooding or inundation and during leaf off conditions when possible. However, due to its high elevation, there are a few patches of snow throughout the dataset which were classed accordingly and delineated by a snow polygon.

Copyright Text:

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 1000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 246850.626171126
YMin: 4156931.95643482
XMax: 306103.876061364
YMax: 4229172.41442416
Spatial Reference: 26911 (26911)

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Object ID Field: OBJECTID

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Global ID Field: GlobalID

Type ID Field:

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Templates:

Name: Waterbodies (Yosemite) - LiDAR 2019
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• UNITCODE: YOSE
• UNITNAME: Yosemite National Park
• REGIONCODE: PWR

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 1/3/2025 8:58:34 PM

Schema Last Edit Date: 1/3/2025 8:58:34 PM

Data Last Edit Date: 1/3/2025 8:58:28 PM

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