1. USM Hydrographic Science 2004 Class Field Project Upper Pearl River Survey 15 June – 20 July 2004

2. 30 July 2004USM 2004 Upper Pearl Survey2 GPS Processing Collection For BM positioning, Ashtech Z-Xtreme raw data was collected and submitted to OPUS For Skiff, Bertram and infrastructure positioning, two Ashtech Z-Xtremes (base and rover) collected raw data which was processed in GrafNav Date (DOY)BMSkiffBertramInfrastructure 6/16 (168)  6/17 (169)  6/18 (170)  6/19 (171)  6/20 (172)  6/21 (173)  6/22 (174)  6/23 (175)  6/24 (176)  6/25 (177)  6/28 (180)  6/29 (181)  6/30 (182)  7/01 (183)  7/07 (189)  7/08 (190)  7/19 (201)  7/20 (202)  7/21 (203) 

3. 30 July 2004USM 2004 Upper Pearl Survey3 GPS Processing OPUS Two six-hour data collection sessions were conducted at one benchmark for each tide gauge location (I-10, USGS, SBT, Hancock) Converted from Ashtech U files to RINEX using teqc Submitted to OPUS in RINEX format (slant measurement corrected to vertical height from BM to ARP) OPUS error reported as “peak-to-peak,” which is equivalent to 3.3  I-10 benchmark D unacceptable (under bridge), so benchmark G established

4. 30 July 2004USM 2004 Upper Pearl Survey4 GPS Processing OPUS LocationX (m) Error (m) 3.3  Y (m) Error (m) 3.3  Z (m) Error (m) 3.3  Mean Latitude (  ‘ “) Mean Longitude (  ‘ “) Ellipsoid Height (m) NAVD 88 Height (m) GEOID03 NGVD 29 Height (m) Corpscon SBT 35590.617 0.012 -5508461.097 0.003 3204173.812 0.00230 21 10.16429 89 37 47.32470 -23.3953.7573.712 SBT 35590.622 0.023 -5508461.127 0.026 3204173.804 0.021 USGS 34099.295 0.042 -5508480.999 0.034 3204155.174 0.01330 21 9.47047 89 38 43.17019 -23.7703.3623.317 USGS 34099.277 0.049 -5508481.040 0.059 3204155.190 0.044 Hancock 35415.529 0.011 -5509812.600 0.015 3201861.614 0.0173019 43.21132 89 37 54.20573 -26.0061.0861.040 Hancock 35415.542 0.013 -5509812.579 0.049 3201861.606 0.015 I-10 D 34749.555 0.512 -5511178.072 0.698 3199534.225 0.274N/A I-10 D 34749.048 1.503 -5511177.012 2.769 3199533.747 1.466 I-10 G 34514.668 0.014 -5511246.762 0.072 3199424.355 0.03030 18 11.47193 89 38 28.26527 -23.1363.8873.841 I-10 G 34514.674 0.011 -5511246.795 0.023 3199424.377 0.040

5. 30 July 2004USM 2004 Upper Pearl Survey5 GPS Processing OPUS 11 USM1 base station files submitted to OPUS

6. 30 July 2004USM 2004 Upper Pearl Survey6 GPS Processing GrafNav

7. 30 July 2004USM 2004 Upper Pearl Survey7 GPS Processing GrafNav

8. 30 July 2004USM 2004 Upper Pearl Survey8 GPS Processing GrafNav Quality numbers are described by GrafNav as follows: QualityMeaningAccuracy (m) 1Fixed Integer0.00 – 0.15 2Converged Float or Noisy Fixed Integer 0.05 – 0.40 3Converging Float0.20 – 1.00 4Converging Float0.50 – 2.00 5DGPS1.00 – 5.00 6DGPS2.00 – 10.00

9. 30 July 2004USM 2004 Upper Pearl Survey9 GPS Processing GrafNav 3 GrafNav export scripts were created –Bertram, Skiff, xyz (infrastructure) All data were exported as UTM 16 Eastings and Northings For Bertram and Skiff navigation, all solutions with standard deviations greater than 2 meters and/or with quality numbers 4, 5 or 6 were excluded from import into CARIS For infrastructure positioning, all solutions were used in conjunction with aerial photography and redrawn

10. 30 July 2004USM 2004 Upper Pearl Survey10 GPS Processing GrafNav

11. 30 July 2004USM 2004 Upper Pearl Survey11 GPS Processing GrafNav

12. 30 July 2004USM 2004 Upper Pearl Survey12 GPS Processing GrafNav

13. Processing: Multibeam Katie Reser