20231115
11264300
1.0
FALSE
UpperOldRiverRTK20231109_dom.crf
002
639050.880000
643169.016000
4185259.176000
4187515.896000
1
Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
WGS_1984_UTM_Zone_10N
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8
FALSE
RAW
3
Cache/RAW
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continuous
unsigned integer
20231115
11252500
20231115
11252500
FGDC CSDGM Metadata
Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388
UpperOldRiverRTK20231109_dom.crf
1
-121.420471
-121.373262
37.824471
37.803502
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
Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Data was collected on 11/9/2023 1100-1330 PST.
Michael Baldwin, P.E., California Department of Water Resources, NCRO
public domain
Old River
Delta
California
orthomosaic
UAV
Raster Dataset
dataset
EPSG
9.8.8(3.0.1)
2
1
0
639050.880000 4185259.176000
639050.880000 4187515.896000
643169.016000 4187515.896000
643169.016000 4185259.176000
641109.948000 4186387.536000
171589
0.024000
94030
0.024000
Band_1
255.000000
1.000000
8
Band_2
255.000000
1.000000
8
Band_3
255.000000
1.000000
8
20231115
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