Brief communication: Two-year MRR observations at Great Wall Station, Antarctic Peninsula region

Abstract. We report a two-year record (March 2024–February 2026) of Micro Rain Radar (MRR) observations at Great Wall Station in the Antarctic Peninsula region. After quality control, near-surface precipitation and snowfall were identified during 32 % and 21 % of the observation time, respectively. Median snowfall radar reflectivity is approximately 9 dBZ and exhibits minimal variation with height, likely due to frequent shallow snowfall. Strong winds are associated with reduced low-level median radar reflectivity below approximately 1 km. We further developed a localized Ze (equivalent radar reflectivity) – S (snowfall rate) parameterization and identified systematic underestimation of cumulative snowfall profiles in ERA5 products.