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oai:b2share-:rxr3y-d7734 2026-01-28T11:13:30Z community-fmi

https://fmi.b2share.csc.fi/records/rxr3y-d7734 10.57707/fmi-b2share.900cf0c74c1c45efb396b910a841bb3c https://etsin.fairdata.fi/dataset/9fd7ec6a-22e9-4195-95b6-be41f40a734e FMI Finnish Meteorological Institute National Land Survey of Finland Finnish Antarctic Research Program Leena Leppänen Antero Kukko Aleksi Rimali Aku Riihelä Priit Tisler 2025 Finnish Meteorological Institute Dataset eng 3.3.2 → Earth sciences → Environmental science snow physics, stratigraphy, density, liquid water content, specific surface area, grain size, temperature, air temperature, relative humidity, wind speed, wind direction, albedo, shortwave radiation, longwave radiation, net radiation, surface distance, drone, Antarctica, Aboa 2022-10-31 2023-01-31 application/octet-stream application/x-netcdf application/zip Measurements were conducted during Finnish Antarctic Research Programme (FINNARP) 2022 expedition to Finnish Aboa station located in Dronning Maud Land in western Antarctica. The field measurements were made weekly at AWS5 weather station (−73.105034S, −13.162370W), approximately 10 km from Aboa station, and at different satellite overpass locations on pre-checked GPS routes typically 5-35 km from the station. In total 8 measurement occasions were made at AWS5 site and 16 measurements at different IceSat-2 and CryoSat-2 satellite overpass locations between November 2022 and February 2023. Measurements included snow surface roughness observed with a drone-based laser scanner and a backpack-based laser scanner, radiation observations on the ground, radiation observations on a drone, snow pit measurements, and meteorological measurement at the weather station. This data set includes data from the snow pits (date, time, location, coordinates, stratigraphy, hardness, wetness, grain size, grain type, density, temperature, liquid water content, specific surface area, depth of measurements), data from the automatic weather station (AWS5) maintained by FINNARP (date and time, air temperature, distance between sensor and snow surface, wind speed, wind direction, relative humidity, albedo, long- and shortwave incoming radiation, long- and shortwave outgoing radiation, long- and shortwave net radiation), albedo data from Eppley and CM14 radiation stations (shortwave broadband albedo, up- and downwelling shortwave radiative flux, solar zenith angle, solar azimuth angle, coordinates), albedo data from drone (shortwave broadband albedo, downwelling shortwave radiative flux, solar zenith angle, coordinates), RGB drone image mosaics, and surface roughness and elevation derived from the laser scanner data. Hyperspectral camera data is available on request. The data set is related to manuscript on "Measurements on physical snow properties in Dronning Maud Land, Antarctica". CC-BY 1.8 GB 9 files leena.leppanen@fmi.fi Hemispherical near-infrared reflectance from snow sample surface measured with IceCube instrument (manufacturer A2 Photonic Sensors) and converted to specific surface area with dedicated software. Liquid water content and density measured with SnowFork instrument (manufacturer Insinööritoimisto Toikka) Density measured with 3 cm high rectangular density cutter which volume is 100 cm^3 Stratigraphy measurement includes layer depth, hardness with hand scale, wetness with hand scale, grain size, and grain type Temperature measured with HI98501 digital thermometer (manufacturer Hanna Instruments Ltd) Grain size and type estimated from macrophotos taken against SEAR crystal card 1-mm reference grid Sensor distance to the snow surface is measured with the SR50A sensor (Campbell Scientific) Air temperature and relative humidity are measured using the HMP110 sensor (Vaisala) Wind speed is measured using the Heavy Duty Wind Monitor HD-Alpine Model 05108-45 sensor (R&M Young) Surface albedo and short- and longwave incoming and outgoing radiation are determined via upward and downward facing CNR4 pyranometers (Kipp & Zonen) Shortwave broadband albedo is measured with CM14 radiation station (Kipp & Zonen) Shortwave broadband albedo is measured with Eppley radiation station Mavic 2 Pro (DJI) original camera is used for RGB images Drone based albedo is measured with CM11 pyranometer (Kipp & Zonen) Surface roughness and elevation are derived from Riegl VUX-120 laser scanner data