Abstract. This article provides a comprehensive hydrometeorological dataset collected over the past two decades throughout the Cordillera Blanca, Peru. The data recording sites, located in the upper portion of the Rio Santa valley, also known as the Callejon de Huaylas, span an elevation range of 3738–4750 m a.s.l. As many historical hydrological stations measuring daily discharge across the region became defunct after their installation in the 1950s, there was a need for new stations to be installed and an opportunity to increase the temporal resolution of the streamflow observations. Through inter-institutional collaboration the hydrometeorological network described in this paper was deployed with goals to evaluate how progressive glacier mass loss was impacting stream hydrology, and to better understand the local manifestation of climate change over diurnal to seasonal and interannual time scales. The four automatic weather stations supply detailed meteorological observations, and are situated in a variety of mountain landscapes, with one on a high-mountain pass, another next to a glacial lake, and two in glacially carved valleys. Four additional temperature and relative humidity loggers complement the weather stations within the Llanganuco valley by providing these data across an elevation gradient. The six streamflow gauges are located in tributaries to the Rio Santa and collect high temporal resolution runoff data. The datasets presented here are available freely from https://doi.org/10.4211/hs.059794371790407abd749576df8fd121 (Mateo et al., 2021). Combined, the hydrological and meteorological data collected throughout the Cordillera Blanca enable detailed research of atmospheric and hydrological processes in tropical high-mountain terrain.

中文翻译：

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在秘鲁布兰卡热带地区收集的高时间分辨率水文气象数据（2004-2020）

摘要。本文提供了过去二十年在秘鲁布兰卡山脉中收集的综合水文气象数据集。数据记录站点位于 Rio Santa 山谷（也称为 Callejon de Huaylas）的上部，海拔范围为 3738-4750 米，因为测量该地区日流量的许多历史水文站在安装后已不复存在在 1950 年代，需要安装新台站，并有机会提高流量观测的时间分辨率。通过机构间合作，部署了本文中描述的水文气象网络，其目标是评估渐进式冰川质量损失如何影响河流水文，更好地了解气候变化在昼夜到季节和年际时间尺度上的局部表现。四个自动气象站提供详细的气象观测，位于各种山地景观中，一个在高山通道上，另一个在冰川湖旁边，两个在冰川雕刻的山谷中。四个额外的温度和相对湿度记录仪通过在海拔梯度上提供这些数据来补充 Llanganuco 山谷内的气象站。六个流量测量仪位于 Rio Santa 的支流中，收集高时间分辨率的径流数据。此处提供的数据集可从 https://doi.org/10.4211/hs.059794371790407abd749576df8fd121（Mateo 等，2021）免费获得。结合，