Fig. 1: Global distribution of the TC-SGWs.
From: A global survey of stratospheric gravity waves generated by tropical cyclones
a Composite global distribution of acumulative TC-SGW intensity over all samples after maximum-minimum normalization based on all samples (shading) and TC density [contour, (10° × 10°) −1]. b–e Composite global distribution of normalized accumulative TC-SGW intensity (shading), TC density [contour, (10° × 10°) −1], and 3-hPa background wind (arrow, m s−1) in northern winter, spring, summer, and autumn, respectively. The accumulative TC-SGW intensity is also maximum-minimum normalized based on all samples. The red boxes denote the TC-SGW hotspots. The approximate altitude range of the results is 30 ~ 40 km, and the composite dataset is from AIRS observations and IBTrACS; see the “Methods” section for further details.
