Boundary-Layer Dynamics and Cloud-Radiative Studies in SHEBA: Development of an Atmospheric Lidar and a Wind Profiler

SHEBA 中的边界层动力学和云辐射研究：大气激光雷达和风廓线仪的开发

• 批准号: 9503654
• 负责人: C. Fairall
• 金额: --
• 依托单位: NOAA Environmental Technology Laboratory
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1997-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9503654&HistoricalAwards=false
• 关键词: Boundary; Layer; Dynamics; Cloud; Radiative

9503654 Fairall Research supported by this grant is under the auspices of the Arctic Systems Science (ARCSS) Global Change Research Program and is jointly sponsored by the Division of Ocean Sciences and the Office of Polar Programs. Work to be performed represents preliminary steps towards a major 5-year research project named SHEBA, which is envisioned to study the heat budget of the Arctic Ocean and its impact on global change. The primary goals of SHEBA are: (1) to develop, test and implement models of arctic ocean-atmosphere-ice processes that demonstrably improve simulations of the present day arctic climate, including its variability, using General Circulation Models (GCMs), and (2) to improve the interpretation of satellite remote sensing data in the Arctic for analysis of the arctic climate system and provide reliable data for model input, model validation and climate monitoring. This work will develop, construct, and prepare for deployment two new instruments that will be built specifically for autonomous operation at the main SHEBA ice camp. These are a wind profiler to provide wind and temperature profiles continuously to 2.5 km altitude; and a lidar for cloud and aerosol monitoring which will measure optical depth and provide ice/water determinations. The instruments will be designed to optimize performance under Arctic conditions. This instrumentation will be useful in addressing an identified critical issue of SHEBA, the sea arctic cloud- radiation feedback mechanism.

9503654由这笔赠款支持的费尔研究由北极系统科学全球变化研究计划赞助，由海洋科学部和极地方案办公室联合赞助。将开展的工作是迈向一个名为SHEBA的五年重大研究项目的初步步骤，该项目旨在研究北冰洋的热量收支及其对全球变化的影响。SHEBA的主要目标是：(1)开发、测试和实施北极海洋-大气-冰过程模式，利用全球环流模式明显改进对当今北极气候包括其变异性的模拟，以及(2)改进对北极卫星遥感数据的解释，用于北极气候系统的分析，并为模型投入、模型验证和气候监测提供可靠的数据。这项工作将开发、建造和准备部署两台新仪器，这两台仪器将专门为舍巴主要冰营地的自主操作而建造。它们是一台风廓线仪，可连续提供2.5公里高度的风和温度分布；以及一台激光雷达，用于云和气溶胶监测，它将测量光学厚度，并提供冰/水的测定。这些仪器将被设计成在北极条件下优化性能。这一仪器将有助于解决海洋北极云辐射反馈机制SHEBA的一个已确定的关键问题。