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Service Description: Purpose: Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Survey Date and Time: Data was collected on 3/8/2023 1100-1145 PST Imagery Acquisition: The imagery was collected using a DJI Mavic 2 Pro UAS, operating at 300’ above ground level, along one single flight line following the center line of Middle River between 1 mile downstream of Howard road and Tract Blvd. The field collection was controlled by a DJI Smart Controller running the DJI Pilot app. Software Processing: Images were imported into ArcGIS Pro 2.8.0 using the Ortho Mapping workspace tool, block adjusted, and an Orthomosaic was generated. No external control points were used for this project. Adjustment summary from ArcGIS Pro: Number of Adjusted Images 842 Number of Tie Points 3855296 Number of Solution Points 1321867 Mean Reprojection Error / Sigma Naught (pixel) 0.29 / 0.41 Ground Resolution (m/pixel) 0.021 Adjustment Type Frame Ground Control Points Involved in Adjustment No

Name: Aerial_Photography/MiddleRiver_20230308_2

Description:

Single Fused Map Cache: false

Extent:

XMin: 635739.48
YMin: 4193757.5000000005
XMax: 640364.8799999995
YMax: 4195118.86
Spatial Reference: 32610  (32610)  VCSWkid(115700)  LatestVCSWkid(115700)

Initial Extent:

XMin: 635739.48
YMin: 4193757.5000000005
XMax: 640364.8799999995
YMax: 4195118.86
Spatial Reference: 32610  (32610)  VCSWkid(115700)  LatestVCSWkid(115700)

Full Extent:

XMin: 635739.48
YMin: 4193757.5000000005
XMax: 640364.8799999995
YMax: 4195118.86
Spatial Reference: 32610  (32610)  VCSWkid(115700)  LatestVCSWkid(115700)

Pixel Size X: 0.01999999999999809

Pixel Size Y: 0.019999999999998085

Band Count: 3

Pixel Type: U8

RasterFunction Infos: {"rasterFunctionInfos": [{ "name": "None", "description": "Make a Raster or Raster Dataset into a Function Raster Dataset.", "help": "" }]}

Mensuration Capabilities: Basic

Inspection Capabilities:

Has Histograms: true

Has Colormap: false

Has Multi Dimensions : false

Rendering Rule:

Min Scale: 0

Max Scale: 0

Copyright Text: Michael Baldwin, P.E., California Department of Water Resources, NCRO

Service Data Type: esriImageServiceDataTypeRGB

Min Values: 0, 4, 0

Max Values: 255, 255, 255

Mean Values: 135.41972973777885, 132.4267627435785, 119.53659738656853

Standard Deviation Values: 36.22965222893715, 34.04243819830209, 33.43387826648779

Object ID Field:

Fields: None

Default Mosaic Method: Center

Allowed Mosaic Methods:

SortField:

SortValue: null

Mosaic Operator: First

Default Compression Quality: 75

Default Resampling Method: Bilinear

Max Record Count: null

Max Image Height: 4100

Max Image Width: 15000

Max Download Image Count: null

Max Mosaic Image Count: null

Allow Raster Function: true

Allow Copy: true

Allow Analysis: true

Allow Compute TiePoints: false

Supports Statistics: false

Supports Advanced Queries: false

Use StandardizedQueries: true

Raster Type Infos:

Name: Raster Dataset
Description: Supports all ArcGIS Raster Datasets
Help:

Has Raster Attribute Table: false

Edit Fields Info: null

Ownership Based AccessControl For Rasters: null

Child Resources:   Info   Histograms   Statistics   Key Properties   Legend   Raster Function Infos

Supported Operations:   Export Image   Identify   Measure   Compute Histograms   Compute Statistics Histograms   Get Samples   Compute Class Statistics   Query Boundary   Compute Pixel Location   Compute Angles   Validate   Project