Dynamics of ionic species in Svalbard annual snow: the effects of rain event and melting

摘要: Abstract. The Arctic and middle latitude (such as the Alps) ice core archives, except for Greenland summit, are strongly influenced by melting processes, able to modify original chemical signal of annual snowfall. In last decades, increase average temperature has caused enhanced surface snow in higher cap, especially Svalbard Archipelago. frequency altitude winter “rain on snow” events well length season a direct impact composition seasonal permanent layers due different migration processes water-soluble compounds, such ionic species. re-allocation along snowpack species could significantly present snow, making comprehensive interpretation climate records difficult. first 100 cm at Austre Broggerbreen Glacier (Spitsbergen, Islands, Norway) was monitored daily from 27th March until 31st May 2015. experiment period covers almost entire spring season. During experiment, rain event occurred 16th 17th April while 15th reached an isothermal profile. presented dataset is unique helps better understand behaviour cations (K+, Ca2+, Na+, Mg2+), anions (Br−, I−, SO42−, NO3−, Cl−, MSA) two carboxylic acids (C2-glycolic C5-glutaric acids) during this period. results obtained give us overview how chemicals remobilized or end aim paper picture evolution strata with that can influence distribution snow. work helpful future analyses paleoclimatic archives.