| snippet:
|
This is a mosaic of aerial imagery of the San Joaquin Valley from 2021. This mosaic includes the section of the valley that corresponds to California State Plane Zone 3, Zone 4, and Zone 5. |
| summary:
|
This is a mosaic of aerial imagery of the San Joaquin Valley from 2021. This mosaic includes the section of the valley that corresponds to California State Plane Zone 3, Zone 4, and Zone 5. |
| accessInformation:
|
California Department of Water Resources, Towill, Inc. and NV5 Geospatial |
| thumbnail:
|
.JPEG.JPEG |
| typeKeywords:
|
["Data","Service","Image Service","ArcGIS Server"] |
| MinScale:
|
1.5E8 |
| description:
|
<DIV STYLE="text-align:Left;"><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>This is a mosaic of aerial imagery of the San Joaquin Valley from 2021. This mosaic includes the section of the valley that corresponds to California State Plane Zone 3, Zone 4, and Zone 5. Horizontal spatial reference is NAD 1983 California Teale Albers. Raster resolution is 0.25 ft. All units are in US Survey Feet.</SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Aerial Imagery Acquisition </SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>The airborne imagery mission design was developed by Towill, Inc. The airborne imagery data collection mission was performed by Keystone Aerial Survey, Inc. using a Vexcel UltraCam UCE Mark 3 digital sensor with a 100mm focal length. The mission was initiated March 28, 2021 and completed on May 12, 2021.</SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Aerial Imagery Acquisition Parameters</SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>The timing of the aerial photography acquisition mission was aligned with periods when water courses are within their channels, when ground and atmospheric conditions are suitable and safe to perform the flight (e.g., no excess standing water; no wildfires; no rain, fog, smoke, dust, or strong winds; etc.), and when airspace restrictions were not imposed over the study area and surrounding areas. Furthermore, the solar altitude was thirty degrees (30°) or higher above the horizon during the acquisition of the aerial photography. The ground resolution of the source imagery was 6.7cm (0.22ft).</SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Flight missions were designed on the separate State Plane System zones within the project AOI with a small overlap of image exposures at the boundary of each zone. </SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>This is an official DWR Image Service, which meets all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standards version 3.5, dated March 2023.</SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><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.</SPAN></SPAN></P><P /><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>This Image Service was published on 5/3/2023, by the DWR Division of Engineering, who may be contacted at gis@water.ca.gov. Comments, problems, improvements, updates, or suggestions should be forwarded to the official DWR point of contact as available and appropriate.</SPAN></SPAN></P><DIV><P><SPAN /></P></DIV></DIV> |
| licenseInfo:
|
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>None</SPAN></P></DIV></DIV> |
| catalogPath:
|
|
| title:
|
San_Joaquin_Valley_2021 |
| type:
|
Image Service |
| url:
|
https://parcgis.water.ca.gov/arcgisimgpublicmngr/services |
| tags:
|
["zone 3","zone 4","zone 5","san joaquin valley","central valley","2021","lidar","aerial imagery","california"] |
| culture:
|
en-US |
| name:
|
San_Joaquin_Valley_2021 |
| guid:
|
|
| MaxScale:
|
5000.0 |
| spatialReference:
|
NAD_1983_California_Teale_Albers_FtUS |