High-frequency, hourly, and daily measurements from Commonwealth Glacier Meteorological Station (COHM), McMurdo Dry Valleys, Antarctica (1993-2026, ongoing)

As part of the McMurdo Dry Valleys Long-Term Ecological Research program, a spatially distributed, long-term climate monitoring network was established across the McMurdo Dry Valleys region of Antarctica, consisting of fourteen research-grade weather stations that continuously measure a standard suite of environmental parameters. Ecosystem processes in this region are strongly regulated by climatic drivers that exhibit high variability across both time and space, making accurate measurement of environmental variables at high temporal and spatial resolution essential to understanding the biophysical dynamics of this polar desert ecosystem. This data package includes measurements from the Commonwealth Glacier Meteorological Station (COHM), which was established in 1993 within the ablation zone of Commonwealth Glacier in the Fryxell Basin of Taylor Valley, McMurdo Dry Valleys, Antarctica. Parameters include air temperature, relative humidity, incoming and outgoing shortwave and longwave radiation, wind speed and direction, surface (snow/ice) temperature, and surface distance. Data are provided at high frequency (typically 15-minute intervals), along with hourly and daily summaries. Users should note that summary statistics may be affected by periods of missing data. Since there is no universally accepted standard for handling gaps in time-series data, users are encouraged to work with the high-frequency data and establish their own criteria for acceptable data completeness to minimize any potential bias.

作为麦克默多干谷长期生态研究（McMurdo Dry Valleys Long-Term Ecological Research）计划的一部分，科研人员在南极洲麦克默多干谷区域搭建了一套空间分布式长期气候监测网络，该网络由14台科研级气象站组成，可连续监测一系列标准环境参数。该区域的生态过程受气候驱动因子强烈调控，而这些驱动因子在时间与空间上均存在高度变异性，因此以高时空分辨率精准测量环境变量，是理解这片极地荒漠生态系统生物物理动态的必要前提。本数据包包含来自联邦冰川气象站（Commonwealth Glacier Meteorological Station，COHM）的监测数据。该站于1993年设立于南极洲麦克默多干谷泰勒山谷弗莱克塞尔盆地的联邦冰川消融区。监测参数涵盖气温、相对湿度、入射与出射短波辐射及长波辐射、风速与风向、地表（积雪/冰面）温度以及地表距离。数据以高频率（通常为15分钟间隔）提供，并附带逐小时与逐日汇总数据。使用者需注意，汇总统计结果可能受缺失数据时段的影响。由于目前尚无针对时序数据缺失值处理的通用公认标准，我们鼓励使用者直接使用高频原始数据，并自行设定可接受的数据完整性标准，以尽可能降低潜在偏差。