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                             ±í 1. DGPS ÊÓ²ìµÄºã¾Ã¿É¿¿¶È(RREF ²Î¿¼Õ¾)

 

  Axis Mean of 17280 daily SDs (millimeters) SD of daily SDs (millimeters) 95% Confidence (1.97 x SD) (millimeters)
LREF-RREF Upstream/Downstream  0.31  0.18  0.61
  Right/Left  0.37  0.21  0.73
  Vertical  0.38  0.22  0.74
RREF-ML06 Upstream/Downstream  0.32  0.18  0.62
  Right/Left  0.28  0.17  0.55
  Vertical  0.32  0.17  0.63
RREF-ML19 Upstream/Downstream  0.28  0.20  0.54
  Right/Left  0.29  0.21  0.58
  Vertical  0.27  0.19  0.54
RREF-ML23 Upstream/Downstream  0.30  0.14  0.59
  Right/Left  0.30  0.14  0.59
  Vertical  0.25  0.13  0.50
RREF-ML29 Upstream/Downstream  0.28  0.16  0.56
  Right/Left  0.26  0.14  0.51
  Vertical  0.25  0.15  0.48
RREF-ML35 Upstream/Downstream  0.33  0.17  0.64
  Right/Left  0.28  0.14  0.55
  Vertical  0.28  0.14  0.56
RREF-ML46 Upstream/Downstream  0.25  0.25  0.49
  Right/Left  0.27  0.23  0.52
  Vertical  0.25  0.17  0.49
Average Upstream/Downstream 0.29  0.18  0.58
  Right/Left 0.29  0.18  0.57
  Vertical 0.29  0.17  0.56
  Overall Average 0.29  0.18  0.57

 

                                 ±í 2. DGPS ÊÓ²ìµÄºã¾Ã¿É¿¿¶È(LREF ²Î¿¼Õ¾)

 

  Axis Mean of 17280 daily SDs (millimeters) SD of daily SDs (millimeters) 95% Confidence (1.97 x SD) (millimeters)
LREF-ML06 Upstream/Downstream  2.06  0.64  4.07
  Right/Left  2.73  0.82  5.39
   Vertical  2.30  0.85  4.53
 LREF-ML19  Upstream/Downstream  2.02  0.67  3.97
   Right/Left  2.44  0.86  4.80
   Vertical  2.25  0.91  4.43
 LREF-ML23  Upstream/Downstream  2.30  0.50  4.53 
   Right/Left  2.13  0.72  4.21
   Vertical  2.22  0.78  4.37
 LREF-ML29  Upstream/Downstream  1.69  0.58  3.33
   Right/Left  2.29  0.60  4.51
   Vertical  2.18  0.91  4.30
 LREF-ML35  Upstream/Downstream  2.07  0.48  4.08
   Right/Left  2.07  0.55  4.07
   Vertical  2.06  0.74  4.06
 LREF-ML46  Upstream/Downstream  1.38  0.42  2.71
   Right/Left  1.93  0.62  3.79
   Vertical  1.92  0.72  3.78
 Average  Upstream/Downstream  1.92  0.55  3.78
   Right/Left  2.26  0.69  4.46
   Vertical  2.16  0.82  4.25
   Overall Average  2.11  0.69  4.16

 

                                          ±í 3. DGPS ¾«¶È(ML35)

 

  Axis Axis Mean of Day-to-Day deltas (millimeters) DGPS Accuracy of Day-to-Day deltas (millimeters) 95% Confidence (1.97 x SD) (millimeters)
LREF-ML35 Upstream/Downstream  -0.09  0.90  1.77
 RREF-ML35 Upstream/Downstream  -0.03  0.48  0.95

 

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 ¡ô²Î¿¼ÎÄÏ×£ºPERFORMANCE MONITORING OF LIBBY DAM WITH A DIFFERENTIAL GLOBAL POSITIONING SYSTEM UNITED STATES SOCIETY OF DAMS-JUNE 2005


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