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Santa Ana River – EDM Baseline

Santa Ana River – EDM Baseline. OCRTN – RTK Field Test February 2006. Objective:. To measure the horizontal distance and vertical difference between 4 stable monuments To position monuments from 4 different Base Stations with different baseline lengths

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Santa Ana River – EDM Baseline

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  1. Santa Ana River – EDM Baseline OCRTN – RTK Field Test February 2006

  2. Objective: • To measure the horizontal distance and vertical difference between 4 stable monuments • To position monuments from 4 different Base Stations with different baseline lengths • Compare RTK measurements to record measurements

  3. Project Location

  4. OEOC WHYT13km/8 miles 27km/17 miles

  5. SCMS CAT246km/29 miles 72km/45 miles

  6. ProjectLocation

  7. RTK Procedures • 2 Independent occupations on each station • Each independent occupation consists of two 50 epoch measurements (about 1 minute) • Independent occupations occur on different days and different times of the day (+/- 3 hours)

  8. Equipment Used: • One Voodoo Stick • Leica SR530 receiver • Leica AT502 antenna • CDMA Airlink modem • Fixed 2 meter pole w/ 8’ bubble

  9. # of Independent Occupations • Compare coordinates computed for each station and from each base station to the RTK average coordinate: Station OEOC(8.2 mi) WHYT(16.6 mi) SCMS(28.7 mi) CAT2(44.7 mi) A 2 2 2 2 B 2 2 1* 1* C 2 2 1* 1^ D 2 2 1* 2 Wait at least 3 minutes to achieve fix *= could not achieve fix on day 1 ^ = could not achieve fix on day 2

  10. Relative - Test Results: • Compare Historic (record) horizontal distance and vertical difference to RTK coordinate differences for stations: Pt to Pt Record Horiz Dist (ft) Record Vert Diff (ft) A to B 371.967’ +0.977 B to C 2702.579’ +8.324 C to D 2769.172’ +10.895

  11. SCMS single occupation on C and D

  12. SCMS and CAT2

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