"Graham P Davis" wrote :
John Hall wrote:
Philip Eden writes:
snip
The main anomaly centres we
-19mbar over Novaya Zemlya and Finland
-9mbar over the Labrador coast
+9mbar over the Atlantic between Ireland and the Azores
+8mbar in the central Mediterranean

That -19mbar anomaly seems remarkably large. Does it represent any sort
of a record?

January and February 1963 both had anomalies of a little more than +30
over
Iceland.

Well, Jan '63 did, but not February. There was a -30mbar anomaly
south of Iceland in February 1990. In January 1983 the anomalies
ranged from -24mbar SE of Iceland to +18mbar in Biscay.

Philip