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ocean surface m nts where the current regime consists of evrrents which are not significantly larger than the s-or errors. It is evident that future erperunents must be wefvily planned when testing the m ent measuring capabilities of a HF radar system operating in the gmvnd wave mode4. 5.4 Discussion The redid components estimated from the vector current algorithm, ming simulated and actual data, strongly agree with the drifter wmpvted dimaten. The standard deviations are within the lmown errors of both techniques and the results are well correlated. The redid components computed from the direct radar estimate and the -ti- mate from the vector current algorithm correspond well with the drifter computed estimate. The standard deviations are within the knom ermis of both techniques and the resuits are well correlated. Even though the tangential component estimates were highly correlated using simulated data, they were not very well correlated using the actual data with, at best, only 55% of the variability in the mmparison explained by the regression. This may be due to extreme variability in the current field in the regions of interest (Petrie and Anderson [48j) or to b e d m errors. The latter pmibiity was discussed in the previous section. If beamforming problems did exist they were unknown during the experiment, with the exception of the major hardware problems noted durlng the later phs~er of the exe~cise. Since beam integrity is critical for the adequate testing 4Sincethemsgutuder aftheanorroftheradar~irmtrdtPngntialNnent mmp0"er.e indicate thst the -&sent& radar data may bo $wee, the i n q d~ e r may mnder why no other HF radar datasea - tetpd with the -1 UFM~ pmpminginprh-. m i~radar data bm ~o othn current modwring wmimentr are avnilable hm the Cape Raee lysmn. The 6mt dataret war mkld d- the of 1991 to mnp nnd study the raal current pattern. *timaled by the radar. E m . there uar no aca-uutbing made 8MilabLF br that mdre to p-*e data w tert the wetm cvnent algorithm. The 0th- datast uas mktd in the fu of 1996. Even though sesAruthulg driftus - deployed d- tbat penad, the eimuthd remluticm of tLe radar data ..aa roo erne to pmde adequate test data for the algorithm.
of the -tor current algorithm, huther experiments should be performed and this parameter -fully monitored.
Page 1:
CENTRE FOR NEWFOUNDLAND STUDIES TOT
Page 6 and 7:
Abstract Esrlm=r#oo of ocean surf-
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Acknowledgements Quite a number of
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Contents Abstract List of Figures L
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5.2 Direct Radial Surface Current C
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3.4 System architecture of Cape Rae
Page 16 and 17:
List of Tables 5.1 Summary of stati
Page 18 and 19:
List of Symbols d : Distance irom r
Page 20 and 21:
Chapter 1 Introduction The monitori
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southward. In t k example the same
Page 24 and 25:
1.2 Conventional Methods for Measur
Page 26 and 27:
iceberg motion, a better relationsh
Page 28 and 29:
magnitude of the radid component is
Page 30 and 31:
Rice 1241, Barrick [I] developed an
Page 32 and 33:
ange broad and narrow-ham systems (
Page 34 and 35:
the shon-r- radar is quite diEerent
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of a chapter. Thig dso provides an
Page 38 and 39:
2.2 Radial Surface Currents 2.2.1 T
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Figure 2.1: Radw Spectrum (solid li
Page 42 and 43: intervals of Ar and A.9, where thee
Page 44 and 45: Figure 2.3: Wan Q is mbdivided into
Page 46 and 47: The abwe system of equations is swe
Page 48 and 49: Chapter 3 Experimental Data 3.1 Int
Page 50 and 51: e built at other eoastd sites such
Page 52 and 53: Since the mean currents within mast
Page 54 and 55: Figure 3.4: System architecture of
Page 56 and 57: spatid variability and to check sys
Page 58 and 59: oth of these techniques ean then be
Page 60 and 61: the dominant, or 9-, peaks of the s
Page 62 and 63: modelled, since they are known quan
Page 64 and 65: Sine the drifter estimates m e mnst
Page 66 and 67: 4.6.2 Selection of Algorithmn Param
Page 68 and 69: subtended by the b- increases in sb
Page 70 and 71: simplib the analysis by converting
Page 72 and 73: for then beams is therefore 3, 5 an
Page 74 and 75: with the graphs are from a linear r
Page 76 and 77: Fiere 5.2: Scattergrams of radid su
Page 78 and 79: Table 5.2 that the SNR eases of 10
Page 80 and 81: m-ments deliwred by radar and buoys
Page 82 and 83: Figure 5.6: Scattergrams of simulat
Page 84 and 85: Figure 5.7: Scattergrams of -tor me
Page 86 and 87: size. In other words, the algorithm
Page 88 and 89: tem, which is a programmable fsture
Page 90 and 91: Radii vetocify [cws) - Radar Figure
Page 94 and 95: Chapter 6 Conclusions 6.1 Direct Ra
Page 96 and 97: gential component estimate, wen wit
Page 98 and 99: One of the goals of this thesis has
Page 100 and 101: Future work dl also deal with the f
Page 102 and 103: [I4 D. Diemand, E. Faemer, and J. B
Page 104 and 105: (461 D. Barriek, M. Evans, and B. W
Page 106 and 107: DATE (LOCAL) EVENT Comments shorn 6
Page 108 and 109: TIME - DATE (LOCAL) EVENT Comments
Page 110 and 111: The tape was mated by using the DEC
Page 112 and 113: Where DATLOG - Array of 32x3 bytes
Page 114 and 115: Appendix C Catalogue of the NRSL Ra
Page 116 and 117: Date (1992) 11/11 12/11 13/11 14/11
Page 118 and 119: Time I FFT 1 - Date 01/11/92 02/11/
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