| snippet:
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Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Date and TimData was collected on 3/8/2023 1145-1230 PST. |
| summary:
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Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Date and TimData was collected on 3/8/2023 1145-1230 PST. |
| accessInformation:
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Michael Baldwin, P.E., California Department of Water Resources, NCRO |
| thumbnail:
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|
| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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Purpose:
Primary purpose is to quantify floating and submerged aquatic vegetation in the channel.
Survey Date and Time:
Data was collected on 3/8/2023 1145-1230 PST
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.
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 890
Number of Tie Points 4904325
Number of Solution Points 1554734
Mean Reprojection Error / Sigma Naught (pixel) 0.28 / 0.38
Ground Resolution (m/pixel) 0.028
Adjustment Type Frame
Ground Control Points Involved in Adjustment No
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| licenseInfo:
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public domain |
| catalogPath:
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|
| title:
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MiddleRiver_20230308_3 |
| type:
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Image Service |
| url:
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https://parcgis.water.ca.gov/arcgisimgpublicmngr/admin/Aerial_Photography/MiddleRiver_20230308_3/ImageServer |
| tags:
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["Middle River","Delta","California","orthomosaic","UAV"] |
| culture:
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en-US |
| name:
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MiddleRiver_20230308_3 |
| guid:
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|
| spatialReference:
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WGS_1984_UTM_Zone_10N |