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 400’ above ground level, along two passes to fully cover the channel of Middle River from Tracy Blvd to Victoria Canal. 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 Images894Number of Tie Points8064965Number of Solution Points2411674Mean Reprojection Error (pixel)0.17Ground Resolution (m/pixel)0.028Adjustment TypeFrameGround Control Points Involved in AdjustmentNoThis is an official DWR Image Service, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.1, dated September 11, 2019.DWR 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 11/9/2020, 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_3

Description: Imagery Acquisition:The imagery was collected using a DJI Mavic 2 Pro UAS, operating at 400’ above ground level, along two passes to fully cover the channel of Middle River from Tracy Blvd to Victoria Canal. 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 Images894Number of Tie Points8064965Number of Solution Points2411674Mean Reprojection Error (pixel)0.17Ground Resolution (m/pixel)0.028Adjustment TypeFrameGround Control Points Involved in AdjustmentNoThis is an official DWR Image Service, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.1, dated September 11, 2019.DWR 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 11/9/2020, 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: 0.026999999999996943

Band Count: 3

Pixel Type: U8

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Mensuration Capabilities: Basic

Inspection Capabilities:

Has Histograms: true

Has Colormap: false

Has Multi Dimensions : false

Rendering Rule:

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

Service Data Type: esriImageServiceDataTypeRGB

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Mean Values: 121.99464031935668, 117.67895442882363, 107.61172549803395

Standard Deviation Values: 44.54691796821388, 39.89654102198572, 36.04236032527692

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Fields: None

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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Allow Compute TiePoints: false

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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_3 (ImageServer)