Southeast Greenland Accumulation Rates Derived from Operation IceBridge Snow Radar, 2009-2017

Accumulation rates in Southeast Greenland, defined as the area of 45ºWest to 33ºWest and 60ºNorth to 67ºNorth, were derived from Operation IceBridge Snow radar (https://nsidc.org/data/IRSNO1B/versions/2) for the years 2009-2017. The accumulation rates were derived using Firn Densification Model (FDM) density profiles. Each accumulation measurement represents a 10-month period from the last peak melt to the day that the flight was taken and the uncertainty on the measurements is 11%.

格陵兰东南部的积雪积累率，其研究区域定义为西经45°至西经33°、北纬60°至北纬67°，相关数据源自2009-2017年的冰桥行动（Operation IceBridge）雪雷达观测数据集（https://nsidc.org/data/IRSNO1B/versions/2）。该积雪积累率通过雪层致密化模型（Firn Densification Model, FDM）的密度剖面计算得到。每一条积累量测量值对应自末次融水峰值至飞行观测当日的10个月时段，测量不确定度为11%。