Core Facility JOYCE: Jülich ObservatorY for Cloud Evolution

Jülich云演变天文台(乔伊斯，http://www.geomet.uni-koeln.de/joyce))的建立是为了更好地从物理上了解非均匀地形上的云和降水的形成。Joyce的总体技术目标是提供对云和降水及其演变环境的长期、连续(近实时)和质量受控的测量。这种长期观测对于评估全球“气候允许”(~20-50公里)、数值天气预报(~1-10公里)和更小的时空尺度的数值模式具有重要意义。JOYCE是由云雷达、微雨雷达、微波辐射计或风激光雷达等传感器以及体积传感极化多普勒天气雷达对大气柱进行的时间和空间高分辨率测量组成的。这些观测结果为改进大气模式中的云参数化方案提供了基础。因此，乔伊斯作为发展集团资助的核心设施遵循六个主要研究目标。维持标准化观测程序。为了使乔伊斯观测对各种应用具有吸引力，必须尽最大努力确保连续和高质量的受控观测。将制定程序，以确保连续的最高质量的观察，最大限度地减少数据损失，并提供自动质量控制和文件2。)确保并记录自动化的数据生命周期。数据生命周期的定义将管理原始观测数据转换为大气变量的方式和方式，以及如何、何时和在哪里存储这些数据，并通过数据库访问提供这些数据。管理对乔伊斯中心设施和X波段雷达的访问这一目标将管理对可用于执行专门观测实验的仪器的访问。此外，还将确定安装新仪器的顺序。4.)管理对Joyce观测数据库的访问。将制定一项数据政策，规定哪些用户、何时能够获得Joyce-CF数据，以及在什么条件下。5.)创建一个最佳实践中心。将建立被动微波遥感观测和偏振X波段雷达校准/验证的“参考中心”。将举办讲习班和测量运动。)创建一个网站并提供服务。将构思一个包含仪器操作员和用户所有相关信息的Joyce-CF网站。将与积极为乔伊斯--气候变化框架做出贡献的科学家合作，组织外联活动。我们将以工作坊、研讨会和实地考察的形式，为所有感兴趣的科学家和学校提供研讨会。

The Jülich Observatory for Cloud Evolution (JOYCE, http://www.geomet.uni-koeln.de/joyce) has been established in order to provide a better physical understanding of cloud and precipitation formation over heterogeneous terrain. The overall technical objective of JOYCE is to provide long-term, continuous (near-real-time) and quality controlled measurements of clouds and precipitation and the environment in which they evolve. Such long-term observations are of major importance when it comes to evaluating numerical models on global "climate permitting" (~20-50 km), numerical weather prediction (~1-10 km) and smaller spatial and temporal scales. JOYCE is composed of temporally and spatially highly resolved measurements of the atmospheric column by vertically profiling sensors like cloud radars, micro-rain-radars, microwave radiometers or wind lidars together with volume-sensing polarimetric Doppler weather radars. These observations provide the basis for improving cloud parameterizations schemes in atmospheric models. Thus, JOYCE as a DFG-funded core facility follows six major research objectives.1.) Sustainment of standardized observation procedures.In order to make JOYCE observations attractive for various applications, a best possible effort must be undertaken to guarantee continuous and quality controlled observations. Procedures will be defined to ensure continuous highest-quality observations, minimize data loss, and to provide an automatic quality control and documentation2.) Ensure and document automated data life cycle.The definition of a data life cycle will govern which and how the raw observational data is transformed to atmospheric variables and how, when and where they are stored and made available via database access.3.) Regulate access to JOYCE central facility and X-band radarsThis objective will regulate access to the available instruments for performing dedicated observational experiments. Additionally, a sequence for installing new instruments will be defined. 4.) Regulate access to JOYCE observational data base.A data policy will be developed on which users and when will be able to obtain JOYCE-CF data and under which conditions. 5.) Create a center for best practices. A "reference center" for passive microwave remote sensing observations and polarimetric X-band radar calibration/validation will be set-up. Workshops and measurement campaigns will be carried out 6.) Create a website and offer outreach.A JOYCE-CF website will be conceived containing all relevant information for instrument operators and users. Outreach activities will be organized in collaboration with the scientists actively contributing to JOYCE-CF. We will offer seminars to all interested scientists as well as schools in form of workshops, seminars and site tours