[{"name":"oden-artofmelt-2023-surface-meteorology-ice-station-1","title":"Ice station surface meteorology and radiation data from expedition ARTofMELT, Arctic Ocean, 2023","summary":"Measurements of near-surface meteorology, upwelling and downwelling radiative fluxes and snow temperature data were obtained from two installations (the Met Mast, and the radiometer stand) deployed on the sea ice near to the Swedish icebreaker Oden during the expedition ARTofMELT (Atmospheric Rivers and the Onset of Arctic Melt) in the Fram Strait pack ice during the spring transition, 8 May to 14 June of 2023. The installation was designed to fully characterise the surface energy budget on the sea-ice.\r\n\r\nDuring ARTofMELT there were two Ice Stations: During Ice Station 1 measurements were collected on the sea ice continuously from 16 May to 22 May, and during Ice Station 2 measurements were collected on the sea ice continuously from 29 May to 12 June.\r\n\r\nData include air pressure, temperature, relative humidity, wind speed and direction, skin temperature, upwelling and downwelling long wave and shortwave radiation, sub-surface temperature at six depths between 0 and \u22120.64 m from the snow surface, and ice-to-snow heat flux at the snow-ice transition.","citations":"Guy H, Brooks I, Murto S, Karalis M, Tjernstr\u00f6m M (2024) Ice station micrometeorological data from expedition ARTofMELT, Arctic Ocean, 2023. Dataset version 1. Bolin Centre Database. https:\/\/doi.org\/10.17043\/oden-artofmelt-2023-micrometeorology-ice-station-1","comments":"##### Measurement system\r\nThe measurement system consisted of two independent battery powered installations, the \"Met Mast\" and the \"Radiometer Stand\". The Radiometer Stand (all hemispheric radiometers and the KT15-2) was located approximately 40 m away from the Met Mast (all other instruments). Photographs of the measurement installations are included in the zipped datafile. GPS measurements on the Met Mast and the Radiometer Stand were used calculate a heading between the two installations allowing for the derivation of the true wind direction. Two Campbell Scientific CR1000 data loggers (one at the Met Mast and one at the Radiometer Stand) recorded data for the radiometers (Radiometer Stand) and the thermistor string and heat flux plate (Met Mast). The remaining data were logged by two Raspberry Pi's (one at the Met Mast and one at the Radiometer Stand).\r\n\r\n##### Quality control\r\nDuring the measurement period, the two installations were visited once per day when possible. During the visit, the data were downloaded, batteries were replaced, instrumentation were inspected, and any frost was removed from instrument windows. The daily visits were logged in the \"icestation_logbook\" which is included as an excel spreadsheet with this dataset.\r\n\r\nQuality control flags for each variable are included in the data file. Note that poor quality data has not been removed, therefore it is essential to filter the data using the appropriate quality control flags before use.\r\n\r\nThe following additional factors should be considered when using this data: \r\n- True wind directions are calculated using the heading between the two GPS units on the Met Mast and the radiometer stand.\r\n- Vector wind averages are calculated before deriving the True wind direction in degrees. \r\n- No tilt correction is applied to the 3D sonic anemometer data. Horizontal wind speed is calculated from all 3D components, assuming that the contribution of vertical velocity is negligible.\r\n- Air pressure in this file is derived from the internal sensor in the Licor control box, no corrections have been applied.\r\n- A bias correction has been applied to the Met mast KT15 (skin_temperature_1) based on the recorded temperature of melting snow. The instrument bias is due to the window heater that was activated on the Met mast KT15. Both raw (skin_temperature_1_raw) and corrected (skin_temperature_1) data are included in this dataset.\r\n- The factory calibration is used for the heat-flux plate data.\r\n- 1-minute averages are labelled for the LHS of the averaging window.\r\n\r\n##### Associated raw data and code\r\nThe python code used to generate the NetCDF files and QC the raw data are available at [GitHub](https:\/\/github.com\/heatherguy\/AOM-WP1-BL).\r\n\r\n##### The expedition\r\nData were collected during the ARTofMELT 2023 expedition on board the Swedish icebreaker Oden, which was organized by the [Swedish Polar Research Secretariat](https:\/\/www.polar.se\/en\/expeditions\/previous-expeditions\/arctic\/artofmelt-2023\/) from 8 May through 14 June, 2023.\r\n\r\n##### Associated data from the expedition\r\nSee also thermodynamic and momentum flux estimations from the [Ice station micrometeorological data from expedition ARTofMELT, Arctic Ocean, 2023](https:\/\/bolin.su.se\/data\/oden-artofmelt-2023-micrometeorology-ice-station-1) by Guy et al. (2024).\r\n\r\n##### Data creators' roles\r\n- Heather Guy (operator and dataset creator)\r\n- Ian Brooks (operator and principal investigator)\r\n- Sonja Murto (operator)\r\n- Michail Karalis (operator)\r\n- Michael Tjernstr\u00f6m (chief scientist; operator)","category":"Atmosphere","subcategory":"Observations","keywords":"Arctic; Arctic Ocean; ARTofMELT; ARTofMELT 2023 expedition; Icebreaker Oden; Atmosphere; Weather observations; Wind; Wind speed; Wind direction; Temperature; Relative humidity; Surface temperature; Shortwave radiation; Longwave radiation; Meteorology; Atmosphere; Snow temperature; Skin temperature; Albedo; Ice station; Sea ice","scientist":"Heather Guy, Ian Brooks, Sonja Murto, Michail Karalis, Michael Tjernstr\u00f6m","firstname":"Heather","lastname":"Guy","address":"National Centre for Atmospheric Science (NCAS); Fairbairn House; 71-75 Clarendon Rd","postalcode":"LS2 9PH","city":"Leeds","province":"","country":"United Kingdom","parameters":"Earth science","location":"Ocean > Arctic Ocean","progress":"","language":"English","project":"ARTofMELT 2023 expedition. The generation of this dataset was supported by the UKRI National Environment Research Council grant reference NE\/X000087\/1. The project ARTofMELT was funded by the Swedish Research Council (VR: 2022-03052).","publisher":"Bolin Centre Database","version":"1","constrains":"","access":""}]