Air temperature data for C1 chart recorder, 1952 - ongoing.

Temperature data were collected on a daily time-scale from the C1 climate station (3018 m) since 1952. Over time various circumstances have led to days with missing values. Some missing values were estimated from redundant sensors and nearby climate stations using various methods. Greenland 1987 was a basis for the methodology. However when it was not possible to use this methodology, new methods were developed.自1952年起，研究人员便从海拔3018米的C1气象站（C1 climate station）获取逐日尺度的气温观测数据。随着时间推移，各类客观因素导致部分观测日期出现数据缺失。针对部分缺失值，研究人员通过多种方法，依托站内备用传感器与周边气象站的观测数据完成了插补估算。1987年格陵兰数据集（Greenland 1987）曾作为该套插补方法的研发依据，但当该方法无法适用时，研究人员又开发了全新的插补方案。