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The surface ocean is the main source of iodine to the atmosphere, where it plays a crucial role including in the catalytic removal of tropospheric ozone. The availability of surface oceanic iodine is governed by its biogeochemical cycling, the controls of which are poorly constrained. Here we show a near two-year time series of the primary iodine species, iodide, iodate and dissolved organic iodine (DOI) in inner shelf marine surface waters of the Western English Channel (UK). The median ± standard deviation concentrations between November 2019 and September 2021 (n=76) were: iodide 88 ± 17 nM (range 61-149 nM), iodate 293 ± 28 nM (198-382 nM), DOI 16 ± 16 nM (<0.12-75 nM) and total dissolved iodine (dI T ) 399 ± 30 nM (314-477 nM). Though lower than inorganic iodine ion concentrations, DOI was a persistent and non-negligible component of dI T , which is consistent with previous studies in coastal waters. Over the time series, dI T was not conserved and the missing pool of iodine accounted for ~6% of the observed concentration suggesting complex mechanisms governing dI T removal and renewal. The contribution of excess iodine ( I* ) sourced from the coastal margin towards dI T was generally low (3 ± 29 nM) but exceptional events influenced dI T concentrations by up to ±100 nM. The seasonal variability in iodine speciation was asynchronous with the observed phytoplankton primary productivity. Nevertheless, iodate reduction began as light levels and then biomass increased in spring and iodide attained its peak concentration in mid to late autumn during post-bloom conditions. Dissolved organic iodine was present, but variable, throughout the year. During winter, iodate concentrations increased due to the advection of North Atlantic surface waters. The timing of changes in iodine speciation and the magnitude of I* subsumed by seawater processes supports the paradigm that transformations between iodine species are biologically mediated, though not directly linked.

A fast-response (10 Hz) chemiluminescence detector for ozone (O3) was used to determine O3 fluxes using the eddy covariance technique at the Penlee Point Atmospheric Observatory (PPAO) on the south coast of the UK during April and May 2018. The median O3 flux was −0.132 mg m−2 h−1 (0.018 ppbv m s−1), corresponding to a deposition velocity of 0.037 cm s−1 (interquartile range 0.017–0.065 cm s−1) – similar to the higher values previously reported for open-ocean flux measurements but not as high as some other coastal results. We demonstrate that a typical single flux observation was above the 2σ limit of detection but had considerable uncertainty. The median 2σ uncertainty of deposition velocity was 0.031 cm s−1 for each 20 min period, which reduces with the square root of the sample size. Eddy covariance footprint analysis of the site indicates that the flux footprint was predominantly over water (> 96 %), varying with atmospheric stability and, to a lesser extent, with the tide. At very low wind speeds when the atmosphere was typically unstable, the observed ozone deposition velocity was elevated, most likely because the footprint contracted to include a greater land contribution in these conditions. At moderate to high wind speeds when atmospheric stability was near-neutral, the ozone deposition velocity increased with wind speed and showed a linear dependence with friction velocity. This observed dependence on friction velocity (and therefore also wind speed) is consistent with the predictions from the one-layer model of Fairall et al. (2007), which parameterises the oceanic deposition of ozone from the fundamental conservation equation, accounting for both ocean turbulence and near-surface chemical destruction, while assuming that chemical O3 destruction by iodide is distributed over depth. In contrast to our observations, the deposition velocity predicted by the recently developed two-layer model of Luhar et al. (2018) (which considers iodide reactivity in both layers but with molecular diffusivity dominating over turbulent diffusivity in the first layer) shows no major dependence of deposition velocity on wind speed and underestimates the measured deposition velocities. These results call for further investigation into the mechanisms and control of oceanic O3 deposition.

Loades explores England's religious cultures during the reign of Mary Tudor. He investigates how conflicting traditions of conformity and dissent negotiated the new spiritual, political and legal landscape which followed her reintroduction of Catholicism to England.

This is the first general selection from the substantial body of surviving documents about Elizabeth's navy. It is a companion to The Navy of Edward VI and Mary I (Vol.157 in the NRS Series), where the apparatus serving both volumes was printed, and it complements the other NRS volumes that deal specifically with the Spanish Armada. This collection concentrates (though not exclusively so) on the early years of Elizabeth's reign when there was no formal war. From 1558-1585 the navy was involved in a number of small-scale campaigns, pursuit of pirates and occasional shows of force. The documents selected emphasize the financial and administrative processes that supported these operations, such as mustering, victualing, demobilisation, and ship maintenance and repair. The fleet varied in size from about 30 to 45 ships during the period and a vast amount of maintenance and repair was required. The main component of the volume is the massively detailed Navy Treasurer's account for 1562-3 which is followed by and collated with the corresponding Exchequer Account. The documents illustrate just how efficiently the dockyards functioned. They were one of the great early Elizabethan achievements.

David Loades provides a masterful overview of this formative period of British history. Exploring the reign of each monarch within the framework of the dynasty, he unpacks the key questions surrounding the monarchy; the relationship between church and the state, development of government, war and foreign policy, the question of Ireland and the issue of succession in Tudor politics. Loades considers the recent scholarship on the dynasty as a whole, paying particular attention to Henry VIII, Elizabeth I and Mary Tudor. He also considers how recent revisionist history asks new questions of their political and personal lives. This places our understanding of the dynasty as a whole in a new light.

This collection from the substantial body of surviving documents about Elizabeth's navy concentrates (though not exclusively so) on the early years of Elizabeth's reign when there was no formal war. The documents selected emphasise the financial and administrative processes that supported small-scale campaigns and occasional shows of force, such as mustering, victualing, demobilisation, and ship maintenance and repair.

From Elizabeth of York - wife of Henry VII, the first Tudor monarch - through to Elizabeth I, her grand-daughter and the last in the line, this book explores some of the most colourful and dramatic women in British history. Queen consorts were central to the Royal Court but their role has rarely been examined or contrasted with the better known ruling queens. How did they behave (in and out of the bedchamber)? How powerful were they as patrons of learning and the arts? What religious views did they espouse and why? How successful and influential were they?.

The story of Henry VIII and his six wives has passed from history into legend - taught in the cradle as a cautionary tale and remembered in adulthood as an object lesson in the dangers of marrying into royalty. The true story behind the legend, however, remains obscure to most people, whose knowledge of the affair begins and ends with the aide memoire 'Divorced, executed, died, divorced, executed, survived'. David Loades' masterly book recounts Henry's whole sorry tale in detail from his first marriage, to his brother's widow Catherine of Aragon, to his more or less contented old age in the care of the motherly Catherine Parr.