{
 "culture": "en-US",
 "name": "MiddleRiver_20230308_2",
 "guid": "",
 "catalogPath": "",
 "snippet": "Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Data was collected on 3/8/2023 1100-1145 PST.",
 "description": "Purpose:\n\tPrimary purpose is to quantify floating and submerged aquatic vegetation in the channel.\nSurvey Date and Time:\n\tData was collected on 3/8/2023 1100-1145 PST\nImagery Acquisition:\n\tThe imagery was collected using a DJI Mavic 2 Pro UAS, operating at 300\u2019 above ground level, along one single flight line following the center line of Middle River between 1 mile downstream of Howard road and Tract Blvd. The field collection was controlled by a DJI Smart Controller running the DJI Pilot app.\nSoftware Processing:\n\tImages 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.\nAdjustment summary from ArcGIS Pro:\nNumber of Adjusted Images\t842\nNumber of Tie Points\t3855296\nNumber of Solution Points\t1321867\nMean Reprojection Error / Sigma Naught (pixel)\t0.29 / 0.41\nGround Resolution (m/pixel)\t0.021\nAdjustment Type\tFrame\nGround Control Points Involved in Adjustment\tNo\n\n",
 "summary": "Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Data was collected on 3/8/2023 1100-1145 PST.",
 "title": "MiddleRiver_20230308_2",
 "tags": [
  "Middle River",
  "Delta",
  "California",
  "orthomosaic",
  "UAV"
 ],
 "type": "Image Service",
 "typeKeywords": [
  "Data",
  "Service",
  "Image Service",
  "ArcGIS Server"
 ],
 "thumbnail": "",
 "url": "https://parcgis.water.ca.gov/arcgisimgpublicmngr/admin/Aerial_Photography/MiddleRiver_20230308_2/ImageServer",
 "spatialReference": "WGS_1984_UTM_Zone_10N",
 "accessInformation": "Michael Baldwin, P.E., California Department of Water Resources, NCRO",
 "licenseInfo": "public domain"
}