A trough or cyclonic curvature maximum in the trade wind easterlies. The wave may reach maximum amplitude in the lower middle troposphere or may be the reflection of an upper tropospheric cold low or an equatorward extension of a mid-latitude trough.
Definition Source :
S-412 WMO Weather Product Specification
Similarity to Source :
Proposal Type :
Submitting Organization :
Proposed Change :
Standardize Item Name. Add definition source, reference and similarity.
On behalf of the IHO Member States, the International Hydrographic Bureau would like to thank Korea Hydrographic and
Oceanographic Agency(KHOA) of the Republic of Korea for giving active support in the development of the S-100 GI Registry