De genoemde retrogressie wordt zichtbaar in de EC46Sebastiaan schreef: ↑17-02-2023 16:32https://wcd.copernicus.org/articles/1/373/2020/
For SSWs that are dominated by EuBL around their onset, cold anomalies prevail over northern Europe, albeit also extending over large parts of central Europe (Fig. 4b). They peak at −4 to −6 K around lags beyond 20 d, which corresponds well with the occurrence of the GL regime. Note that negative T2m' values in the composite for all SSWs are much weaker (see Fig. 4d). The associated retrogression of initial positive Z500' over the eastern North Atlantic to Greenland along with a strengthening of negative Z500' over the southeastern North Atlantic around lag 15–25 d is striking. Furthermore, GL is associated with warm anomalies over Greenland and eastern Canada.
De Groenlandsetting is uitgesproken koud in deze tijd van het jaar.