Review of "Estimation of Reactive Inorganic Iodine Fluxes in the Indian Ocean and Southern Ocean Marine Boundary Layer"

Abstract

The paper uses concurrent observations of sea surface iodide (SSI), ozone (O3), and iodine monoxide (IO) along with several other parameters to assess different methods of estimating iodine fluxes to the marine boundary layer. Region-specific forms of these methods for the Indian Ocean and Southern Ocean are derived and further assessed against the observations. The results are substantially different in the Indian Ocean and Southern Ocean and on either side of the polar front. Furthermore, the results are often contrary to previous findings, highlighting the need for further studies. The fundamental finding of the paper that existing methods fail to reproduce observations and that consistent improvements applicable to the full data set are not forthcoming is worthy of publication; however, the authors must better demonstrate and communicate C1