The CSU-CHILL National Facility

科罗拉多州立大学(CSU)提议继续运行被称为CHILL的研究天气雷达，作为国家低层大气观测设施(LAOF)套件的一部分。CSU-CHILL是一种最先进的双频(S和X波段)、双极化雷达，位于科罗拉多州格里利，为美国国家科学基金会资助的科学研究提供雷达数据。在下一个业绩期间(2015-2017年)，CSU将部署CHILL雷达，以支持被同行审查进程认为具有特殊价值的研究项目。CSU-CHILL的工作人员将维护和操作雷达，以促进大气动力学和云物理领域的前沿研究。CSU-CHILL通过提供能够获得高质量数据的双频雷达系统，在NSF支持的低层大气观测设施套件中发挥重要作用，用于研究关于恶劣天气的重要问题。CSU-CHILL的用户对冬季风暴发展、风暴电气化和云中微物理过程等主题进行了研究，包括开发基于各种雷达参数识别降水大小和类型的方法。未来的部署包括一个项目，将雷达观测与地面3-D相机拍摄的冬季降水图像进行比较，以验证水流星识别算法，以及参与新的风暴穿透研究飞机的飞行测试。CSU-CHILL的工作人员将在接下来的两个夏天继续开展一个非常有竞争力的本科生研究体验(REU)项目。参加REU项目的学生完成了以先进天气雷达的操作和校准为中心的动手研究项目。CHILL还以其虚拟CHILL(VCHILL)软件而闻名，该软件允许访问用于课堂和/或研究用途的存档CHILL数据，并为学习气象学的大学班级远程操作雷达提供便利。CSU-CHILL的工作人员将完成将固态S波段发射机整合到雷达系统中。这一发展预计将通过降低成本和提高可靠性，为其他S波段雷达，包括国家气象局运营的雷达带来重大好处。

The Colorado State University (CSU) proposes to continue operating the research weather radar known as CHILL as part of the national Lower Atmosphere Observing Facility (LAOF) suite. CSU-CHILL is a state-of-the-art dual-frequency (S- and X-band), dual-polarization radar located in Greeley, Colorado that provides radar data in support of NSF-funded scientific research. During the next performance period (2015-2017), CSU will deploy the CHILL radar in support of research projects deemed to be of exceptional merit by the peer review process. CSU-CHILL staff will maintain and operate the radar to facilitate cutting-edge research in the areas of atmospheric dynamics and cloud physics. CSU-CHILL fulfills an important role in the suite of NSF-supported lower atmosphere observing facilities by providing a dual-frequency radar system capable of obtaining high-quality data with which to study important questions about severe weather. Users of CSU-CHILL have conducted research into topics such as winter storm development, storm electrification, and in-cloud microphysical processes, including the development of methods to identify the size and type of precipitation based on various radar parameters. Future deployments include a project to compare radar observations to surface-based, 3-D camera images of winter precipitation to validate algorithms for hydrometeor identification, and participation in the flight testing of the new storm penetration research aircraft. CSU-CHILL staff will continue to run a very competitive Research Experiences for Undergraduates (REU) program for the next two summers. Student participants in the REU program complete hands-on research projects centered on the operation and calibration of an advanced weather radar. CHILL is also known for its Virtual CHILL (VCHILL) software, which allows access to archived CHILL data for classroom and/or research use, and also facilitates remote operation of the radar by university classes studying meteorology. CSU-CHILL staff will complete the incorporation of a solid-state S-band transmitter into the radar system. This development is expected to bring significant benefit to other S-band radars, including those operated by the National Weather Service, through reduced cost and improved reliability.