Surface mass balance of Qaanaaq ice cap, Greenland in 2014-2015

We installed 3.5 m long aluminium poles in the ice on Qaanaaq ice cap to measure surface mass balance. We measured length from top of the poles to ice surface. Measured length change of the poles converted in meters water equivalent.我们于卡纳克冰盖（Qaanaaq Ice Cap）的冰层中布设了长3.5米的铝制测杆，以开展地表物质平衡测量。我们测量了测杆顶端至冰面的垂直距离，并将实测得到的测杆长度变化换算为米水当量（meters water equivalent）。