Valley-floor snowfall in Taylor Valley, Antarctica, from 1995 to 2017: spring, summer and autumn

Abstract We present an analysis of the 20 year snowfall dataset in Taylor Valley and results a new snow cover monitoring study. Snowfall has been measured at four sites from 1995 to 2017. focus on valley-floor when wind does not exceed 5 m s -1 , we exclude winter our due poor data quality. averaged 11 mm water equivalent (w.e.) 2017 across all stations ranged 1 58 w.e. Standard deviations 3 17 w.e., highlighting strong interannual variability Valley. During spring autumn there is spatial gradient such that coast received twice as much more central inland stations. identified changepoint 2007 increasing (3 yr ) decreasing (1 ), which coincides with shift temperature no detectable trend. Daily camera imagery augments measurements. The revealed near tripling average number days 37 between 2006 2012 106