Aerial_Photography/OldRiverUpper_20231109 (ImageServer)

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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 11/9/2023 1100-1330 PST Imagery Acquisition: The imagery was collected using a DJI Phantom 4 RTK UAS, operating at 300’ above ground level, along a 2D grid from levee to levee on Old River from Middle River to Doughty Cut. The field collection was controlled by a DJI Phantom4 RTK controller running the DJI GS RTK app. Software Processing: Images were imported into ArcGIS Pro 3.1.0 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 582 Number of Tie Points 1418583 Number of Solution Points 593893 Mean Reprojection Error / Sigma Naught (pixel) 0.23 / 0.55 Ground Resolution (m/pixel) 0.027 Adjustment Type Frame Ground Control Points Involved in Adjustment No This is an official DWR Image Service, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standards version 3.6, dated September 2023. 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 11/15/2023, by the DWR Division of Engineering. Comments, problems, improvements, updates, or suggestions should be forwarded to the official DWR point of contact as available and appropriate at gis@water.ca.gov

Name: Aerial_Photography/OldRiverUpper_20231109

Description: Purpose: Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Survey Date and Time: Data was collected on 11/9/2023 1100-1330 PST Imagery Acquisition: The imagery was collected using a DJI Phantom 4 RTK UAS, operating at 300’ above ground level, along a 2D grid from levee to levee on Old River from Middle River to Doughty Cut. The field collection was controlled by a DJI Phantom4 RTK controller running the DJI GS RTK app. Software Processing: Images were imported into ArcGIS Pro 3.1.0 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 582 Number of Tie Points 1418583 Number of Solution Points 593893 Mean Reprojection Error / Sigma Naught (pixel) 0.23 / 0.55 Ground Resolution (m/pixel) 0.027 Adjustment Type Frame Ground Control Points Involved in Adjustment No This is an official DWR Image Service, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standards version 3.6, dated September 2023. 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 11/15/2023, by the DWR Division of Engineering. Comments, problems, improvements, updates, or suggestions should be forwarded to the official DWR point of contact as available and appropriate at gis@water.ca.gov

Single Fused Map Cache: false

Extent:

Initial Extent:

Full Extent:

Pixel Size X: 0.02399999999999694

Pixel Size Y: 0.02399999999999723

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: 1, 1, 1

Max Values: 255, 255, 255

Mean Values: 138.99289312504752, 132.86609990534677, 111.174050434627

Standard Deviation Values: 33.668590227362266, 32.9018458797458, 31.14059989778884

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:

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