gis director: gina herbst email:[email protected] principal : victor m. rasgado, pls 8113...
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GIS Director: Gina HerbstEmail:[email protected]
Principal : Victor M. Rasgado, PLS 8113Certified DBE/MEBEmail:[email protected]:805-868-6288 fax: 805-937-7772
Copyright ©2010 - 2012 Victor M. Rasgado
INTRO
Victor M. Rasgado P.L.S. 8113
Santa Maria High School - Alumni 1985
U.S. Army Veteran – 1989
University of Alaska, Anchorage – Alumni 1995
GIS Specialist – Richland County Planning Dept, South Carolina – 1998
California - Professional Land Surveyor – 2006
Applied Geomatics & Land Surveys – 2010
CLSA GIS Committee Chair - Present
HORIZONTAL AND VERTICAL CONTROL NETWORK
Expedite The Flow of Geodata….
Establish horizontal and vertical positions on newly established benchmarks throughout the City of Pismo Beach.
Provide benchmark information via hard copy and as a GIS layer.
Incorporate new Geodata into the City of Pismo Beach's GIS.
CITY OF PISMO BEACH
HORIZONTAL AND VERTICAL CONTROL NETWORKS
Past GPS Surveys – Santa Maria Valley GPS Network
4 Survey Crews4 GPS ReceiversCommunications between Crews and Setup -
CRITICAL1 ½ hour GPS Static SessionsMission Planning for GPS observationsNightime OperationsStatic Session on Known HPGN Control Monuments½ Million Dollar Investment - 1996
BACKGROUND
BACKGROUND
OBJECTIVES
Defendable, Accessible, Reliable - DAR
Utilize new technological advances for measuring the surface of the earth, (Science of Geomatics), along with traditional Land Surveying and GIS Mapping practices in order to provide Efficient, Reliable, and Cost Effective data to the City of Pismo Beach.
Email:[email protected]:805-868-6288
OBJECTIVES
Horizontal Datum
Horizontal accuracies to comply with California Public Resources Code 8856 having a positional accuracy of two centimeters or better.
GPS static measurements to the California Continuous Operating Reference Stations (CORS). Geodetic coordinates for CORS stations USLO, P516, and P513 used as the basis for this survey.
Benchmarks and GIS mapping referenced to the California Coordinate System 1983, CCS83, (epoch 2011), Zone 5.
OBJECTIVESVertical Datum
Vertical accuracies to comply with California Public Resources Code 8858 having a positional accuracy of five centimeters or better.
Benchmark "Beach 1974“ elevation held for this survey, having a published elevation of 122.42' feet.
Benchmarks and GIS mapping referenced to the North American Vertical Datum of 1988 (NAVD88) through ties to established local benchmarks within the City of Pismo Beach.
GIS Data
GIS Layer containing the newly established benchmark locations incorporated into a geodatabase along with attributes with spatial links to field notes and digital imagery for each point.
TECHNIQUES AND EQUIPMENT USED
Primary Control
Primary benchmarks observed for 30 minutes and post-processed using Trimble Business Center software version 2.5 along with CORS stations USLO, P516, and P513 .
Least Squares adjustment processed using Trimble Business Center software version 2.5 Residuals printed and included in the surveyor's report.
45 Primary Control Points Set
TECHNIQUES AND EQUIPMENT USED
Secondary Control
NGS Field Guidelines for RTK/RTN GPS measurements followed. http://www.ngs.noaa.gov/PUBS_LIB/NGSRealTimeUserGuidelines.v2.0.4.pdf
Secondary benchmarks observed for (two) 3 minutes occupations and post-processed using an Excel spreadsheet designed to compare points and average after verifying positional and vertical tolerances.
+/- 150 Secondary Points to be set.
DELIVERABLESSurvey Field Notes
DELIVERABLESLeast Squares Adjustment Report and Final Coordinate Solution for Primary Control Benchmarks
DELIVERABLESGIS Layer
DELIVERABLESGIS Layer
DELIVERABLESGIS Layer
KEYS TO SUCCESS
Constant Communication with Client
Adapt to Clients Needs
Team Work
Mission Planning and Point Management
Guidelines for New Technologies and Implementations
Good Food and Company
GIS Director: Gina HerbstEmail:[email protected]
Principal : Victor M. Rasgado, PLS 8113Certified DBE/MEBEmail:[email protected]:805-868-6288 fax: 805-937-7772
Copyright ©2010 - 2012 Victor M. Rasgado