20161222
08462800
1.0
FALSE
Centerlines_3D
6094463.266003
6164910.563756
2091621.508013
2194998.552899
1
13.133
002
Projected
GCS_North_American_1983
Linear Unit: Foot_US (0.304801)
NAD_1983_StatePlane_California_VI_FIPS_0406_Feet
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20170407
08334300
20170407
08334300
150000000
5000
FGDC
Quantum Spatial
517 SW 2nd St., Suite 400
Corvallis
OR
97333
US
541-752-1204
http://www.quantumspatial.com
Quantum Spatial
20170407
1
Feature Class
Grant Sharp
Orange County Public Works
300 North Flower Street
Santa Ana
CA
92703
Grant.Sharp@ocpw.ocgov.com
US
714-955-0633
13.133
vector digital data
2016-12-30T00:00:00
Quantum Spatial
517 SW 2nd St., Suite 400
Corvallis
OR
97333
US
541-752-1204
http://www.quantumspatial.com
Quantum Spatial
Quantum Spatial
Centerlines_3D
Orange County High Density LiDAR
2016-07-23
2016-07-26
7.570000
1424.229980
Provide support for high resolution terrain elevation data from the Orange County High Density LiDAR dataset.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This shapefile represents the stream centerlines generated within the Orange County High Density LiDAR analysis boundary. These lines were generated using QSI hydrology tools, and elevations were assigned to each vertex. The horizontal datum for this dataset is NAD83 with OCS 2007.00 Adjustment, the vertical datum is NAVD88 with OCS 1995.00 Adjustment, and the data is projected in California State Plane VI. Units are in US Survey Feet. Quantum Spatial collected the Orange County High Density LiDAR data for Orange County Public Works between 07/23/16 and 07/26/16. Aerial Imagery utilized was provided by Orange County Public Works, and was acquired by Eagle Aerial Solutions between June and July of 2015. </SPAN></P></DIV></DIV></DIV>
Orange County Public Works
Centerline
Feature Extraction
Orange County
California
Please contact the Orange County Public Works for information regarding the use of this data.
Grant Sharp
Orange County Public Works
300 North Flower Street
Santa Ana
CA
92703
Grant.Sharp@ocpw.ocgov.com
US
714-955-0633
Digital Imagery, Feature Extraction, Water's Edge, Breakline, Centerline
Orange County, California,
Esri ArcGIS 10.5.0.6491
1
-117.785809
-117.550022
33.684019
33.397314
LiDAR data has been collected and processed for all areas within the project study area.
Acquisition. Quantum Spatial collected the Orange County High Density LiDAR data between 07/23/16 and 07/26/16. The survey used a Leica ALS80 laser system mounted in a Cessna Caravan 208B. QSI also utilized Digital Imagery acquired by Eagle Aerial Solutions between June and July of 2015, to assist in feature extraction. Ground level GPS and aircraft IMU were collected during the flight. Sensor: Leica ALS80
Maximum returns: Unlimited
Nominal pulse density: 16 pulses/m^2
Nominal pulse spacing: 0.25 m
AGL: 1400 m
Speed: 105 knots
FOV: 30°
Scan frequency: 52 hz
Pulse rate: 390 kHz
Pulse duration: 2.5 ns
Pulse width: 0.308 m
Wavelength: 1064 nm
Pulses in air mode: Two Pulses in Air
Beam divergence: 22 mrads
Swath width: 750 m
Overlap: 60%
2016-07-26T00:00:00
1. From the stream bank delineations, apply QSI hydrology tools to generate a centerline equidistant from each stream bank.
2. Assign elevations to each vertex in banklines and centerlines.
3. Run elevation smoothing algorithm to enforce downstream flow.
2016-10-06T00:00:00
QSI visually inspected this dataset for errors.
Centerlines_3D
Feature Class
0
Water centerline
Quantum Spatial
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
8
0
0
Feature geometry.
Esri
Coordinates defining the features.
GROUP_
GROUP_
String
254
0
0
Reach
Reach
Integer
4
10
0
Reach
QSI
REACH_ID
REACH_ID
String
254
0
0
REACH_ID
QSI
Shape.STLength()
Shape.STLength()
Double
0
0
0
dataset
EPSG
5.3(9.0.0)
0
Simple
FALSE
0
TRUE
TRUE