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Sewer Pipe UserS Group of Northeast Ohio 4747 E. 49th Street Cuyahoga Heights, Ohio 44125 Wednesday,February 16,2011 GIS For Water and Wastewater CURTIS l. Truss Jr., OTCO Executive Director.
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Sewer Pipe UserS Groupof Northeast Ohio4747 E. 49th StreetCuyahoga Heights, Ohio 44125 Wednesday,February 16,2011GIS For Water and Wastewater CURTIS l. Truss Jr.,OTCO Executive Director
OTCO-B11189-OM 0.5 HOURSIntroduction To GIS for Wastewater Collection SystemsOTCO-B11228-OM 0.75 HOURS Global Positioning for Small UtilitiesOTCO-B11247-OM 1.5 HOURSGlobal Positioning For Small UtilitiesOTCO-B11287-OM 1.5 HOURSSmall Systems GIS Part 1
OBJECTIVE To expose students to the world of GIS as it relates to water and wastewater systems. Student should learn the basic components of GIS and GPS.
Operator Training Committee of Ohio, Inc. is a non-profit (501(c)(3) created in 1964. Govern by a Board of Trustees and functions day-to-day under the direction of an Executive Director and staff. “The purpose or purposes for which said corporation is formed are training of water & wastewater works operators; collecting and disseminating information on water and wastewater works operation; and doing any and all things necessary or incident thereto.”
GIS Graphical Information System • A Graphical Information System in its simplest form is just a Map. • It does not have to be a electronic map. However in modern terms it is used to describe electronic mapping.
The idea that the earth was a sphere, and not a flat disc, was first advanced by philosophers of Pythagoras’ school, and brought to general attention through the writings of Plato. a2+b2=c2 Mapping the Maps : Pre 200AD
Mapping the Maps: 200-1500 AD Ptolemy an astronomer laid the foundations of modern trigonometry.
Mapping the Maps:1950-1980 AD • Since 1978 to present the United States has been launching Global Positioning Satellites (GPS) to map out areas around the world. With new technologies mapping has become more accurate than ever before.
GIS ?? GPS • GIS = ? • GPS = ?
GIS ?? GPS • GIS = Geographical Information Systems • GPS = ?
GIS ?? GPS • GIS = Geographical Information Systems • GPS = Global Positioning
GIS & GPS Today • Affordable GIS for Smaller Systems • Accurate Meter Locates For AMR Systems • Daily Work Task Integration • OUPS Locate Entries • Fast and Accurate Field Repairs • Autodialing for Boil Advisory Areas • Asset Management • New Projects • GPS Manholes, Outfalls, Catch Basins
GIS & GPS Today • Affordable GIS for Smaller Systems • Accurate Meter Locates For AMR Systems • Daily Work Task Integration • OUPS Locate Entries • Fast and Accurate Field Repairs • Autodialing for Boil Advisory Areas • Asset Management • New Projects • GPS Manholes, Outfalls, Catch Basins
Mapping Coordinate Systems • WGS84 • World Geodetic System 1984 • Latitude • Longitude • NAD83 • North American Datum 1983 • Ohio State Plane North 3401 • Ohio State Plane South 3402 • Ohio State Plane Coordinate System
Mapping Coordinate Systems • WGS84 • World Geodetic System 1984 • The World Geodetic System is a standard for use in cartography, geodesy, and navigation. It comprises a standard coordinate frame for the Earth, a standard spherodial reference surface (the datum or reference ellipsoid) for raw altitude data, and a gravitational equipotential surface (the geoid) that defines the nominal sea level.
Mapping Coordinate Systems • WGS84 • World Geodetic System 1984
Mapping Coordinate Systems • WGS84 • World Geodetic System 1984 • Latitude • Longitude • NAD83 • The North American Datum is the official datum used for the primary geodetic network in North America
Mapping OHIO STATE PLANE COORDINATE SYSTEM
OHIO NORTH ZONE 3401 ALLEN, ASHLAND, ASHTABULA, AUGLAIZE, CARROLL, COLUMBIANA, COSHOCTON, CRAWFORD, CUYAHOGA, DEFIANCE, DELAWARE, ERIE, FULTON, GEAUGA, HANCOCK, HARDIN, HARRISON, HENRY, HOLMES, HURON, JEFFERSON, KNOX, LAKE, LOGAN, LORAIN, LUCAS, MAHONING, MARION, MEDINA, MERCER, MORROW, OTTAWA, PAULDING, PORTAGE, PUTNAM, RICHLAND, SANDUSKY, SENECA, SHELBY, STARK, SUMMIT, TRUMBULL, TUSCARAWAS, UNION, VAN WERT, WAYNE, WILLIAMS, WOOD, WYANDOT
OHIO SOUTH ZONE 3402 ADAMS, ATHENS, BELMONT, BROWN, BUTLER, CHAMPAIGN, CLARK, CLERMONT, CLINTON, DARKE, FAIRFIELD, FAYETTE, FRANKLIN, GALLIA, GREENE, GUERNSEY, HAMILTON, HIGHLAND, HOCKING, JACKSON, LAWRENCE, LICKING, MADISON, MEIGS, MIAMI, MONROE, MONTGOMERY, MORGAN, MUSKINGUM, NOBLE, PERRY, PICKAWAY, PIKE, PREBLE, ROSS, SCIOTO, VINTON, WARREN, WASHINGTON
Introduction to Field GPS • More than just a point in space. • Provides a GPS Coordinate • Provides pertinent information of those points • Allows overlapping of other map information
GRADES OF GPSRecreational, Mapping, & Survey Recreational GPS receivers are sold at most box stores and at many sporting goods and camping stores. They are also available widely through Internet retailers. At Least 3 satellites required for a good fix. Does not provide the accuracy needed for utilities.
GRADES OF GPSRecreational, Mapping, & Survey Recreational
GRADES OF GPSRecreational, Mapping, & Survey Mapping GPS receivers are typically less user-friendly than the Recreational GPS units, and they cost significantly more. Mapping grade GPS are more accurate than recreational units, commonly to within one meter (approximately 3 feet). In this class we are teaching how to use highly accurate Mapping units to gather field data within an accuracy of 1 meter ..
GRADES OF GPSRecreational, Mapping, & Survey Surveying GPS receivers are the most accurate and the most expensive. They are accurate to within a centimeter. These GPS receivers are most often used by professional surveyors and excel in high accuracy measurements of fixed positions. z
GRADES OF GPSRecreational, Mapping, & Survey Surveying GPS receivers are the most accurate and the most expensive. They are accurate to within a centimeter. These GPS receivers are most often used by professional surveyors and excel in high accuracy measurements of fixed positions.
Satellites and ReceiversHow they Work • Trilateration involves the determination of absolute or relative locations of points by measurement of distances, using the geomerty of spheres or triangle but does not involve the measurement of angles.
Satellite Errors • Ionosphere effects ± 5 meters • Shifts in the satellite orbits ± 2.5 meter • Clock errors of the satellites' clocks ± 2 meter • Multipath effect ± 1 meter • Tropospheric effects ± 0.5 meter • Calculation- und rounding errors ± 1 meter • PDOP Position Dilution of Precision
Satellite Errors • Ionosphere effects ± 5 meters • Shifts in the satellite orbits ± 2.5 meter • Clock errors of the satellites' clocks ± 2 meter • Multipath effect ± 1 meter • Tropospheric effects ± 0.5 meter • Calculation- und rounding errors ± 1 meter • PDOP Position Dilution of Precision
Professional Surveyor MagazineMarch 2010Regarding Global Navigation Satellite Systems (GNSS)..Not just the number of satellites tracked.Quality of the position measured by factors such as PDOP that drives the adoption of equipment by the professional surveying community.