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Spatial Data Essentials in CEIDARS Emission Inventory Workshop

Discover the significance of spatial data for emission inventory management, tools for populating, mapping, and updating data in CEIDARS, learn about coordinate systems, and explore types of spatial data used in workshops.

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Spatial Data Essentials in CEIDARS Emission Inventory Workshop

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  1. Spatial Data in CEIDARS LinYing Li Emission Inventory Workshop March 13, 2006

  2. Outline of the Topics • Significance of spatial data in CEIDARS • Spatial coordinate systems • Types of spatial data • Spatial data fields in CEIDARS • Tools for populating spatial data • Tools for mapping spatial data • Tools for updating spatial data in CEIDARS Emission Inventory Workshop Spring 2006

  3. Why is Location Important? • Emission inventory is the foundation for air quality management and regulatory activities at local, regional, state, and national levels • Incomplete and inaccurate data downgrades the value of emission inventory • Location information is a critical component for emission inventory, especially for non-mobile sources Emission Inventory Workshop Spring 2006

  4. Geographic Coordinate Systems Z P Prime Meridian f latitude (0,0,0) Y Equator l longitude X Emission Inventory Workshop Spring 2006

  5. Geographic Coordinate Systems • Latitude/Longitude In California, 32.50o < Latitude < 42.00o -124.25o <Longitude< -114.15o • Decimal Degrees 34o15’30’’ = 34 + 15/60 + 30/3600 = 34.25833o Emission Inventory Workshop Spring 2006

  6. Projected Coordinate Systems Universal Transverse Mercator (UTM) • Easting, Northing, Zone Datum • NAD27, NAD83 Spheroid • Clarke1866, WGS84 Emission Inventory Workshop Spring 2006

  7. Types of Spatial Data in CEIDARS • Administrative District • county, air basin, air district • Postal Address • street address, city, zip code • Geographic Coordinate System • longitude and latitude • Projected Coordinate System • UTM North and East • Public Land Survey System • meridian base, township, range, section Emission Inventory Workshop Spring 2006

  8. Spatial Fields in CEIDARS • County, Air Basin, Air District in all Tables • CO, AB, DIS • Facility Address (FACxxxx) • FSTREET, FCITY, FZIP, FZIPEXT • Facility Coordinates (FACxxxx) • COORD_SYS, DATUM, SPHEROID, X_USERCOORD, Y_USERCOORD, • Stack Coordinates (STKxxxx) • COORD_SYS, DATUM, SPHEROID, X_USERCOORD, Y_USERCOORD • Device Survey Location (DEVxxxx) • TWNSHP, RANGE, SECT Emission Inventory Workshop Spring 2006

  9. UTM Zones abs(Longitude)<120o abs(Longitude)>120o Emission Inventory Workshop Spring 2006

  10. Rounding Errors • CARB has UTMs in Kilometers, not meters • UTM Easting (UE) - 6 digits • 1000 meters - 649.0 • 100 meters - 649.1 • 10 meters - 649.12 • 1 meters - 649.123 • UTM Northing (UN) - 7 digits • UTM Zone (UZ) 10 or 11 Emission Inventory Workshop Spring 2006

  11. Sources for Coordinates • GPS Receiver (Best) • Assessor’s Parcels (Good) • GIS Layer (Good) • Address Matching (Adequate) • Arc GIS • Google Earth • Web Tools Emission Inventory Workshop Spring 2006

  12. Magellan GPS 315 • Low cost (< $200) • PC cable available • 2 AA batteries • A lithium backup battery • Weather proof Emission Inventory Workshop Spring 2006

  13. Spatial Fields Populated By ARB • Facility Coordinates (FACxxxx) • UE_NAD83, UN_NAD83, LAT_NAD83, LON_NAD83 • Stack Coordinates (STKxxxx) • UE_NAD83, UN_NAD83, LAT_NAD83, LON_NAD83 • Spatial data were populated and uploaded to CEIDARS for 1990-2002 Emission Inventory Workshop Spring 2006

  14. Convert UTM from NAD27 to NAD83 yes X,Y_UserCoord ? no GeoTrans GeoCoding using GIS, Google Earth, etc. yes Street Address ? Transfer to NAD83 longitude and latitude no Using Centroid of the Area yes ZIP, CITY, CO ? Steps to Populate ARB Spatial Data Fields in CEIDARS Emission Inventory Workshop Spring 2006

  15. Tools to Populate ARB Spatial Data Fields – GeoCoding Emission Inventory Workshop Spring 2006

  16. Tools to Populate ARB Spatial Data Fields - Lat/Lon Picker Emission Inventory Workshop Spring 2006

  17. Tools to Populate ARB Spatial Data Fields – Google Earth Emission Inventory Workshop Spring 2006

  18. Tools to Populate ARB Spatial Data Fields - GeoTrans Emission Inventory Workshop Spring 2006

  19. Tools to Map CEIDARS Spatial Data: Facility Locator Emission Inventory Workshop Spring 2006

  20. Tools to Map CEIDARS Spatial Data: Facility Locator Emission Inventory Workshop Spring 2006

  21. Tools to Map CEIDARS Spatial Data: MAAPS Emission Inventory Workshop Spring 2006

  22. Tools to Map CEIDARS Spatial Data: Google Map Emission Inventory Workshop Spring 2006

  23. Tools to Map CEIDARS Spatial Data: EnviroMapper Emission Inventory Workshop Spring 2006

  24. Tools to Map CEIDARS Spatial Data: CHAPIS Emission Inventory Workshop Spring 2006

  25. Tools to update CEIDARS Spatial Data: CEIDARS Online Emission Inventory Workshop Spring 2006

  26. Tools to update CEIDARS Spatial Data: CEIDARS Online Emission Inventory Workshop Spring 2006

  27. Tools to update CEIDARS Spatial Data: CEIDARS Online Emission Inventory Workshop Spring 2006

  28. Web Resources • Google Earth • http://earth.google.com/index.html • GeoTrans • http://earth-info.nima.mil/GandG/geotrans/ • MAAPS • http://dtscnet.dtsc.ca.gov/edet/maaps_edet/index.cfm • EnviroMapper • http://www.epa.gov/compliance/whereyoulive/ejtool.html • CHAPIS • http://www.arb.ca.gov/gismo/chapis_v01_6_1_04/ • CEIDARS Online • http://www.arb.ca.gov/app/emsinv/dist/ Emission Inventory Workshop Spring 2006

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