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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 3/30/2023 0945-1230 PST
Imagery Acquisition:
The imagery was collected using a DJI Mavic 2 Pro UAS, operating at 250’ above ground level, along one single flight line following the center line of Paradise Cut from the weir on the San Joaquin River to River’s End. The field collection was controlled by a DJI Smart Controller running the DJI Pilot app.
Software Processing:
Images were imported into ArcGIS Pro 2.8.2 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 2719
Number of Tie Points 10017387
Number of Solution Points 3653001
Mean Reprojection Error / Sigma Naught (pixel) 0.28 / 0.42
Ground Resolution (m/pixel) 0.018
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 3.5, dated March 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 4/24/2023, 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/ParadiseCut_20230330
Description:
Single Fused Map Cache: false
Extent:
XMin: 639410.56
YMin: 4180482.3839999996
XMax: 649056.128
YMax: 4185676.496
Spatial Reference: 32610
(32610)
VCSWkid(115700)
LatestVCSWkid(115700)
Initial Extent:
XMin: 639410.56
YMin: 4180482.3839999996
XMax: 649056.128
YMax: 4185676.496
Spatial Reference: 32610
(32610)
VCSWkid(115700)
LatestVCSWkid(115700)
Full Extent:
XMin: 639410.56
YMin: 4180482.3839999996
XMax: 649056.128
YMax: 4185676.496
Spatial Reference: 32610
(32610)
VCSWkid(115700)
LatestVCSWkid(115700)
Pixel Size X: 0.015999999999999952
Pixel Size Y: 0.016000000000000607
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, 0, 0
Max Values: 255, 255, 255
Mean Values: 131.42302360513867, 132.91885064268618, 108.83513190463027
Standard Deviation Values: 30.10773222159078, 26.712417259073437, 29.869189055353214
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