“…While one standard methodology has been applied in various WTCs (the Temporal Synoptic Index, Kalkstein and Corrigan, ), WTC‐based research most often relies on a specific, readily available dataset —the redeveloped Spatial Synoptic Classification (SSC; Sheridan, ). The SSC has proven particularly helpful in human‐health based climate applications (Hondula et al ., ; Lee, ), urban heat island research (Brazel et al ., ; Hardin et al ., ), cryospheric applications (Ballinger and Sheridan, ; Budikova et al ., ) and many other lines of applied climatological inquiry. The SSC, however, originated in the US, and while it has since expanded to include much of Canada, Europe and a few dozen locations elsewhere, it is still far from global, and is largely limited to populated cities, as it uses airport weather station data.…”