Mysak 



Table 1 

 Australian Stations with Observed Anomalous Sea- Level Behavior 



*No winter sea level behaviors are available for Newcastle, Port 

 Kembla, and Geraldton; hence in the winter column these stations 

 are marked with dashes. 



During summer, on the other hand, the behavior never becomes distinctly less 

 than barometric at some stations (see the Sydney curve in the top part of Fig. 3 

 and the Coff's Harbour curve in lower part of Fig. 3). However, the behavior is 

 less than barometric at Newcastle and Coff's Harbour; Port Kembla; and New- 

 castle, Sydney, and Port Kembla when oj lies in the neighborhoods 5X10"^° -' 



< 3x10-9 sec-^; 2x10-1° < 

 CO < 10 -9 sec-1 respectively. 



2x10-9 sec-i; and 10 



10 



3. Behavior at the west coast {i = ij. Figure 4 is essentially the mirror 

 image of Fig. 2. During winter the behavior at both stations is greater than 

 barometric when 2xlO-^<ajj^-w< 10"^ sec" ^ (m = 5, 6) and when 10"^ < c^ - 

 a;j ^ < 2X10-S sec-i (m = 5,6).' During summer (Fig. 5) the behavior at both 



stations is greater than barometric when 5x10' 



< 10- 



10 



OJ < 2x10- 



For X in the neighborhood of 



sec ^ and 

 however. 



no general statement can be made regarding the anomalous behavior. 



In summary we note that during winter the behavior is less than barometric 

 at all east coast stations and greater than barometric at all west coast stations 

 (as observed) when the forcing frequency lies in a neighborhood of x j ^ of the 

 form Swj < ojj ^ - OJ < Sojj, where boj^/hco^ - O(10). With the exception of a few 

 cases, the sanie statement also applies to the behavior during summer. At the 

 east coast (Sa.'i)^.^^^^ = 0(10"^ sec- M and (f 'Ji)s„nnr.Pr = o(10-9 sec-^), whereas 



summe r 



0(10- 



sec 



M. 



at the west coast (^^.'1)^.^^^^ = 0(10''' sec'^) and (-1), 



This is to say, for a given season, the behavior at the east coast is more finely 

 "tuned" than that at the west coast, and for a given coast the behavior is more 

 finely tuned during winter than during summer. The reasons for these results 



are that Ir, < t and 



respectively. 



We conclude this section by noting that the lowest mode ( j = l ) shelf wave 

 travels counterclockwise with a speed given by Cj = -f^C 1.44 (see Eq. (16)). In 



486 



