Development of a Sample, Lightweight Cloud/Radiation Instrumentation Package and Balloon Platform for Deployment at the SHEBA Ice Camp

9504356 Stamnes本基金支持的研究由北极系统科学（ARCSS）全球变化研究计划主持，由海洋科学部和极地项目办公室联合主办。将进行的工作是一项名为SHEBA的重大5年研究项目的初步步骤：(1)开发、试验和实施北极海洋-大气-冰过程模式，这些模式可以明显改善利用环流模式（GCMs）对当今北极气候（包括其变率）的模拟；(2)改进北极卫星遥感数据的解译，用于北极气候系统的分析，并为模式输入、模式验证和气候监测提供可靠的数据。这项工作是内华达大学甜品研究所和阿拉斯加大学地球物理研究所的合作成果。在“示巴”野外项目中，几个关键的大气测量将由系留气球进行，这些气球将携带科学仪器到冰面上方一公里处。其中一些仪器必须根据北极条件进行调整和测试。一组测量侧重于云微物理，另一组涉及辐射热流测量。当气球垂直穿过云层时，微物理仪器将提供不同高度云粒子的特征。辐射仪器包将包括自调平上行和下行短波通量辐射计、云液态水仪器和压力、温度、湿度和风等气象仪器包。协作工作将提供通用的操作和数据记录组件。能源部也提供了部分支持。

9504356 Stamnes Research supported by this grant is under the auspices of the Arctic Systems Sciences (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 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 is a collaborative effort between the University of Nevada, Dessert Research Institute and the University of Alaska, Geophysical Institute. Several key atmospheric measurements during the SHEBA field program will be made from tethered balloons that will carry scientific instruments up to a kilometer above the ice surface. Some of these instruments must be adapted and tested for Arctic conditions. One group of measurements focus on cloud microphytsics and another group involve radiative heat fluz measurements. The microphysics instruments will provide characterizations of cloud particles at different altitudes as the balloon moves vertically through cloud layers. The radiative instrument package will consist of self-leveling up- and down- short-wave flux radiometers, cloud liquid water instruments, and meteorological packages for pressure, temperature, humidity, and wind. The collaborative effort will provide common operational and data logging components. Partial support is also being provided by Dept. of Energy.