Sentences with phrase «positive polar cap»
The separation of the negative NAM from the positive polar cap anomalies are emphasized with a difference analysis comparing these binned temperature anomalies between the 1000 hPa PCT composite and the negative NAM composite (Fig. 10b).
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The positive AO phase is characterized by a low - pressure center anomaly over the entire Arctic basin or polar cap (the region poleward of 60 ° N) and high - pressure center anomalies in each ocean basin in the mid-latitudes.
Receeding polar ice cap reflection could be a decreasing and limited positive feedback factor.