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OldRiver_20210623_1_dom.crf
002
634778.885000
639588.859000
4184068.629000
4186116.610000
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Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
WGS_1984_UTM_Zone_10N
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RAW
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Cache/RAW
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continuous
unsigned integer
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20210625
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Esri ArcGIS 12.8.0.29751
OldRiver_20210623_1_dom.crf
1
-121.469203
-121.414197
37.812505
37.793330
Purpose:
Primary purpose is to quantify floating and submerged aquatic vegetation in the channel.
Survey Date and Time:
Data was collected on 6/23/2021 1030-1130 PST
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 Old River from Doughty Cut to 1.5 miles downstream of Tracy Road. The field collection was controlled by a DJI Smart Controller running the DJI Pilot app.
Software Processing:
Images were imported into ArcGIS Pro 2.8.0 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 1258
Number of Tie Points 3817918
Number of Solution Points 1468828
Mean Reprojection Error / Sigma Naught (pixel) 0.34 / 0.53
Ground Resolution (m/pixel) 0.014
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 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 7/1/2021, by Arina Ushakova of the DWR Division of Engineering, who may be contacted at 916-653-3639, or at arina.ushakova@water.ca.gov. Comments, problems, improvements, updates, or suggestions should be forwarded to the official DWR point of contact as available and appropriate.
Old River
Delta
California
orthomosaic
UAV
Primary purpose is to quantify floating and submerged aquatic vegetation in the channel.
Michael Baldwin, P.E., California Department of Water Resources, NCRO
public domain
Raster Dataset
dataset
EPSG
9.8.8(3.0.1)
2
1
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634778.885000 4186116.610000
639588.859000 4186116.610000
639588.859000 4184068.629000
637183.872000 4185092.619500
369998
0.013000
157537
0.013000
Band_1
255.000000
0.000000
8
Band_2
255.000000
0.000000
8
Band_3
255.000000
0.000000
8
20210625
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