Aerial_Photography/MiddleRiver_20201028

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Service Description: Imagery Acquisition:The imagery was collected using a DJI Mavic 2 Pro UAS, operating at 200’ above ground level, along one single flight line following the center line of Middle River from Undine road to 1 mile downstream of Howard road. The field collection was controlled by a DJI Smart Controller running the DJI Pilot app.Software Processing:Images were imported into ArcGIS Pro 2.6 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 Images1398Number of Tie Points8368632Number of Solution Points2982802Mean Reprojection Error (pixel)0.20Ground Resolution (m/pixel)0.014Adjustment TypeFrameGround Control Points Involved in AdjustmentNoDWR makes no warranties or guarantees —either expressed or implied— as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. This Image Service was published on 11/4/2020, by Gregory Twist of the DWR Division of Engineering, who may be contacted at 916-653-2700, or at gregory.twist@water.ca.gov. Comments, problems, improvements, updates, or suggestions should be forwarded to the official DWR point of contact as available and appropriate.

Name: Aerial_Photography/MiddleRiver_20201028_1

Description: Imagery Acquisition:The imagery was collected using a DJI Mavic 2 Pro UAS, operating at 200’ above ground level, along one single flight line following the center line of Middle River from Undine road to 1 mile downstream of Howard road. The field collection was controlled by a DJI Smart Controller running the DJI Pilot app.Software Processing:Images were imported into ArcGIS Pro 2.6 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 Images1398Number of Tie Points8368632Number of Solution Points2982802Mean Reprojection Error (pixel)0.20Ground Resolution (m/pixel)0.014Adjustment TypeFrameGround Control Points Involved in AdjustmentNoDWR makes no warranties or guarantees —either expressed or implied— as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. This Image Service was published on 11/4/2020, by Gregory Twist of the DWR Division of Engineering, who may be contacted at 916-653-2700, or at gregory.twist@water.ca.gov. Comments, problems, improvements, updates, or suggestions should be forwarded to the official DWR point of contact as available and appropriate.

Single Fused Map Cache: false

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Pixel Size Y: 0.012999999999999555

Band Count: 3

Pixel Type: U8

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Mensuration Capabilities: Basic

Inspection Capabilities:

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

Service Data Type: esriImageServiceDataTypeRGB

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Standard Deviation Values: 51.68035770360675, 45.526927999335264, 39.40017937690234

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Default Mosaic Method: Center

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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

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Allow Raster Function: true

Allow Copy: true

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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

Aerial_Photography/MiddleRiver_20201028_1 (ImageServer)