T jpo, 2011, in press he origin of along-shelf pressure gradient in the Middle Atlantic Bight



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Table 2. Correlation coefficients (R) and time lags (shown as R/Lag in months; dashes mean insignificant correlation at the 95% significance level) for 3-month running averages minus 1-year averages for GS path-shifts, wind stress curl, eddy kinetic energy north of the Gulf Stream (N-EKE), CLSW transport computed off the southern coast of Nova Scotia (see text), and total river discharge. See also Figure 7. The last row indicates the correlation coefficients R for 1-year low pass of N-EKE with ASPG, wind stress curl, and GS path shifts. A positive (negative) lag indicates that the variable listed in the first column leads (lags) that listed in the first row. The 95% significance levels are shown in parentheses below each entry, and are computed as 1-(1-0.95)2/(F-1), where F is the degree of freedom calculated as N/N, N is length of time series and N is the dot product of the autocovariances of the two time series.





ASPG

Wind curl

GS shifts

GS shifts

0.74 / 4

(0.44)


-0.65/ 0

(0.38)


1


Wind curl

---

1

-0.65/ 0

(0.38)


N - EKE

-0.57/ 3

(0.28)


0.53 / -1

(0.24)


-0.41 / -1

(0.24)


CLSW Transport

---

-0.81/ -1

(0.44)


0.77 /-1

(0.48)


River input

---

---

---

N - EKE

0.4/0

(0.17)


-0.3/0

(0.27)


---


Figure 1. Map of the western Mid-Atlantic Ocean and locations of the 14 tide-gauge stations.





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