King County GIS Center
King Street Center
201 S. Jackson St.
Suite 706
Seattle, WA 98104
giscenter@kingcounty.gov

+ 47.59909 N
- 122.33136 W

+ 47°  35' 56.72"
- 122° 19' 52.90"

 

2016 Lidar Project - SBET - Sensor Location, Time and Date

Description | Contacts | Attribute Information | Constraints

Data layer thumbnail image

Description

Layer name: LIDAR_2016_SBET
Subject category: survey
Title: 2016 Lidar Project - SBET - Sensor Location, Time and Date
Feature Count: 683998
Feature Type: Point
Abstract: Simplified 2016 King County Lidar Project SBET data. SBET means Smoothed Best Estimate of Trajectory. This data is used by the vendor with the lidar returns data to create the LAS file. This original SBET data was simplified by removing attributes, leaving just those attributes relating to the location, time and date of the aircraft sensor. This data serves as an index to the date and time the lidar data was collected for a given area. Data was processed in reference to NAD83 (CORS96), however the horizontal datum for this dataset is defined as NAD83 (HARN) as the difference is generally small and allows for greater ease of use with data in different datums. The vertical datum is NAVD88, Geoid 03, and the data is projected in Washington State Plane North. Units are in US Survey Feet. Quantum Spatial collected the PSLC King County LiDAR Delivery 4, Block 1 LiDAR data for the Puget Sound LiDAR Consortium between 02/24/16 and 05/25/17.
Purpose: Provides detailed information regarding the location, time and date of the lidar sensor for the 2016 King County lidar project. This can serve as an index to the time and day that the sensor recorded the lidar information for that location.
Status: Complete
Updated: As needed
Time period of content: (single date,as YYYYMMDD)::
Time period of content: (date range, as YYYYMMDD):: 20160224 - 20170525
Spatial reference: WA State Plane North
FGDC Documentation: Classic or FAQ
Open Data Availability: Yes
Place Keywords: Pacific NW, King County, WA, Washington state,
Theme Keywords: survey, lidar, elevation, sensor, position, date, time, imageryBaseMapsEarthCover,
Lineage: Available
Supplemental Information: http://www5.kingcounty.gov/sdc/addl_doc/KingCounty2016LidarProjectDocumentation.htm

Contacts

Maintained by:
King County GIS Center
Primary: Mike Leathers, GIS Data Coordinator, 206-477-4403
(How to e-mail a County contact)
Secondary: KCGIS Center; giscenter@kingcounty.gov. This mailbox is monitored during business hours.

Attribute Information

ItemDescriptionDomain
_GPS_Time_GPS Time
Range Min:5.0
Range Max:604794.0
_Northing_Local projection Easting in feet
Range Min:-525275.947
Range Max:348512.475
_Easting_Local project Easting in feet
Range Min:1172360.941
Range Max:1597751.791
_Height_Aircraft sensor height above ground, in feet.
Range Min:18.81
Range Max:12170.34
_YYYYMMDD_Year, month and day SBET location was recorded. This information comes from the name of each individual SBET file.Four digit year, followed by two digit month, followed by 2 digit day.


Constraints

Access: Access Constraint: Data is available on GIS Data Portal: http://www5.kingcounty.gov/gisdataportal/Default.aspx

Use: Use Constraint: King County data are made available with the understanding that they shall be used exclusively by the obtainer or his/her authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County.