Abstract. A buoy based instrument platform (the "O-buoy") was designed, constructed, and field tested for year-round measurement of ozone, bromine monoxide, carbon dioxide, and meteorological variables over Arctic sea ice. The O-buoy operated in an autonomous manner with daily, bi-directional data transmissions using Iridium satellite communication. The O-buoy was equipped with three power sources: primary lithium-ion battery packs, rechargeable lead acid packs, and solar panels that recharge the lead acid packs, and can fully power the O-buoy during summer operation. This system was designed to operate under the harsh conditions present in the Arctic, with minimal direct human interaction, to aid in our understanding of the atmospheric chemistry that occurs in this remote region of the world. The current design requires approximately yearly maintenance limited by the lifetime of the primary power supply. The O-buoy system was field tested in Elson Lagoon, Barrow, Alaska from February to May 2009, and deployed in the Beaufort Sea in October 2009. Here, we describe the design and present preliminary data.
First‐light measurements from the Canadian face of the Resolute Bay Incoherent Scatter Radar (RISR‐C) were taken in August of 2015. Data were taken for roughly 25 h on both RISR‐C and the North face of the Resolute Bay radar (RISR‐N) in an 11‐beam World Day mode. Overall, the measurements from the RISR‐C radar are of high quality and consistent with results from the RISR‐N radar. During the 25 h period analyzed in this study, the ionosphere responded to changes in orientation of the interplanetary magnetic field . During one particular event, a change from Bz negative to positive and By positive to negative caused the antisunward flow to stall, and a strong dawn‐to‐dusk flow, with decreased electron density and increased ion temperature, replaced it in the RISR‐C field of view. Overall, it is clear that measurements from the RISR‐C radar will complement and greatly expand the scope of ionospheric polar cap measurements.
A second generation meteor echo detection and collection system has been installed on the Christmas Island, Republic of Kiribati, stratosphere‐troposphere radar system. Data from the first 6 months of operation have yielded mean wind and tidal climatologies that are compared with theoretical models.
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