| snippet:
|
Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Data was collected on 10/29/2020 0945-1030 PST |
| summary:
|
Primary purpose is to quantify floating and submerged aquatic vegetation in the channel. Data was collected on 10/29/2020 0945-1030 PST |
| accessInformation:
|
Michael Baldwin, P.E., California Department of Water Resources, NCRO |
| thumbnail:
|
thumbnail/thumbnail.JPEG |
| typeKeywords:
|
["Data","Service","Image Service","ArcGIS Server"] |
| MinScale:
|
1.5E8 |
| description:
|
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Imagery Acquisition:The imagery was collected using a DJI Mavic 2 Pro UAS, operating at 300’ above ground level, along two passes to fully cover the channel of Grant Line Canal from Doughty Cut to Tracy Oasis. 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 1205 Number of Tie Points 5598565 Number of Solution Points1958637 Mean Reprojection Error (pixel)0.17Ground Resolution (m/pixel) 0.022 Adjustment TypeFrame Ground Control Points Involved in Adjustmen No</SPAN></P><P><SPAN>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 11/4/2020, 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> |
| licenseInfo:
|
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>public domain</SPAN></P></DIV></DIV> |
| catalogPath:
|
|
| title:
|
GrantLine_20201029 |
| type:
|
Image Service |
| url:
|
https://parcgis.water.ca.gov/arcgisimgpublicmngr/admin/Aerial_Photography/GrantLine_20201029/ImageServer |
| tags:
|
["Grant Line Canal","Delta","California","orthomosaic","UAV"] |
| culture:
|
en-US |
| name:
|
GrantLine_20201029 |
| guid:
|
|
| MaxScale:
|
5000.0 |
| spatialReference:
|
WGS_1984_UTM_Zone_10N |