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Linear Unit: Meter (1.000000)
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continuous
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FGDC
ISO 19139 Metadata Implementation Specification
Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333
MiddleRiver3_20201028_dom.crf
1
-121.490462
-121.455310
37.890060
37.880711
Primary purpose is to quantify floating and submerged aquatic vegetation in the channel.
Survey Date and Time:
Data was collected on 10/28/2020 1115-1145 PST
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>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.</SPAN></P><P><SPAN>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.</SPAN></P><P><SPAN>Adjustment summary from ArcGIS Pro:Number of Adjusted Images 894 Number of Tie Points 8064965 Number of Solution Points 2411674 Mean Reprojection Error (pixel) 0.17 Ground Resolution (m/pixel) 0.028 Adjustment TypeFrame Ground Control Points Involved in Adjustment No</SPAN></P><P><SPAN>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 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.</SPAN></P></DIV></DIV>
Michael Baldwin, P.E., California Department of Water Resources, NCRO
Middle River
Delta
California
orthomosaic
UAV
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>public domain</SPAN></P></DIV></DIV>
Raster Dataset
dataset
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Band_1
255.000000
0.000000
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Band_2
255.000000
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Band_3
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