Snow pit major ion and methanesulfonic acid concentrations, Disko Island Ice Cap, Greenland, 2014

Major ion and methanesulfonic acid (MSA) concentrations were measured on high resolution (3-5cm) samples taken in two field seasons (April 2014 and April 2015). Samples collected in 2014 include five snow pits and four hand-augured firn cores from five locations. 2015 samples include 3 snow pit and two long cores. Glaciochemistry will be used, in combination with geophysical data and satellite records to reconstruct past (~200 years) environmental conditions in West Greenland.本数据集针对2014年4月与2015年4月两次野外作业季采集的高分辨率（3~5厘米）样品，测定了其中主要离子与甲磺酸（methanesulfonic acid，MSA）的浓度。2014年采集的样品包含来自5个采样点的5个雪坑样品与4根人工钻探的粒雪芯；2015年采集的样品则包括3个雪坑样品与2根长芯样。研究将结合冰川地球化学数据、地球物理资料与卫星观测记录，重建格陵兰岛西部过去约200年的环境条件。