a positive trendgold
6 recently used drifter current measurements to estimate the sea-surface wind speed, and identified a positive trend of 1.8 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{{{{{\rm{m\; s}}}}}}}^{-1}$$\end{document} m s − 1 per decade globally in the weak TC intensity during the 1991–2020 period.