COSMOS-Europe: a European network of cosmic-ray neutron soil moisture sensors
COSMOS-Europe: a European network of cosmic-ray neutron soil moisture sensors
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DOI：
10.5194/essd-14-1125-2022
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发表时间：
2022-03-11
影响因子：
11.4
通讯作者：
Vereecken, Harry
中科院分区：
文献类型：
--
作者：
Bogena, Heye Reemt;Schroen, Martin;Vereecken, Harry
气候变化增加了干旱的发生率和严重程度，原因是气温升高、环流模式改变和降雪量减少。虽然欧洲在过去十年中遭受了自天气记录开始以来从未见过的干旱事件，但整个大陆需要统一的长期数据集来监测变化并支持预测。在这里，我们提出了土壤水分数据，从66个宇宙射线中子传感器（CRNS）在欧洲（COSMOS-Europe）涵盖最近的干旱事件。CRNS站点分布在欧洲各地，涵盖欧洲所有主要土地利用类型和气候带。来自CRNS台站的原始中子计数数据由24个研究机构提供，并使用最先进的方法进行处理。统一处理包括对原始中子计数的校正和根据现有的现场信息转换为土壤水分的统一方法。此外，不确定性估计与数据集一起提供，这些信息对遥感和建模应用特别有用。本文介绍了目前的时空覆盖CRNS站在欧洲，并介绍了数据处理的协议，从原始测量一致的土壤水分产品。COSMOS欧洲网络的数据为环境研究开辟了多种潜在应用，如遥感数据验证，趋势分析或模型同化数据集对于分析大陆尺度的极端气候事件可能特别重要。由于其在气候变化的范围内，在最近几年的及时相关性，我们展示了这种潜在的应用与简要分析的时空土壤水分变异。该数据集名为“COSMOS-Europe数据集：宇宙射线中子土壤水分传感器欧洲网络”，通过Forschungszentrum Julich共享：https://doi.org/10.34731/x9s3-kr48（Bogena和Ney，2021）。
Climate change increases the occurrence and severity of droughts due to increasing temperatures, altered circulation patterns, and reduced snow occurrence. While Europe has suffered from drought events in the last decade unlike ever seen since the beginning of weather recordings, harmonized long-term datasets across the continent are needed to monitor change and support predictions. Here we present soil moisture data from 66 cosmic-ray neutron sensors (CRNSs) in Europe (COSMOS-Europe for short) covering recent drought events. The CRNS sites are distributed across Europe and cover all major land use types and climate zones in Europe. The raw neutron count data from the CRNS stations were provided by 24 research institutions and processed using state-of-the-art methods. The harmonized processing included correction of the raw neutron counts and a harmonized methodology for the conversion into soil moisture based on available in situ information. In addition, the uncertainty estimate is provided with the dataset, information that is particularly useful for remote sensing and modeling applications. This paper presents the current spatiotemporal coverage of CRNS stations in Europe and describes the protocols for data processing from raw measurements to consistent soil moisture products. The data of the presented COSMOS-Europe network open up a manifold of potential applications for environmental research, such as remote sensing data validation, trend analysis, or model assimilation The dataset could be of particular importance for the analysis of extreme climatic events at the continental scale. Due its timely relevance in the scope of climate change in the recent years, we demonstrate this potential application with a brief analysis on the spatiotemporal soil moisture variability. The dataset, entitled "Dataset of COSMOS-Europe: A European network of Cosmic-Ray Neutron Soil Moisture Sensors", is shared via Forschungszentrum Julich: https://doi.org/10.34731/x9s3-kr48 (Bogena and Ney, 2021).