The Arctic Radiation Balance

这个为期三年的项目将量化构成北极地表辐射收支的单个能量流，并将观测到的辐射分布与天气尺度的风、压和湿度模式联系起来。这将是为北极建立一个全面的辐射气候学的首次努力。北极地表能量收支，特别是北冰洋的地表能量收支，已被确定为全球气候系统的一个主要组成部分，由于涉及地表反射率、对流层下层稳定性和水汽输送的反馈机制，全球气候系统对气候尺度扰动具有潜在敏感性。该项目包括四个主要任务：(1)对北极载人观测点直接获得的太阳和长波辐射数据进行分析。(2)利用国际卫星云气候学项目（ISCCP）的卫星云数据产品计算大气表面和大气层顶部的辐射通量。(3)在选定的月份，将isccp导出的通量与相应的天气系统进行比较；(4)将进行一项研究，评估采样和分析程序对辐射统计数据及其时间变率的影响。* * *

9321547 Key This three-year program will quantify the individual energy streams that make up the arctic surface radiation budget, and will relate the observed radiation distribution to synoptic-scale wind, pressure, and moisture patterns. It will be the first effort to produce a comprehensive radiation climatology for the Arctic. The arctic surface energy budget, particularly that of the Arctic Ocean, has been identified as a major component of the global climate system that is potentially sensitive to climate-scale perturbations due to feedback mechanisms involving the surface albedo, the stability of the lower troposphere, and water vapor transport. The project includes four main tasks: (1) The analysis of solar and long-wave radiation data obtained directly at manned observing sites in the arctic. (2) The calculation of radiative fluxes at the surface and at the top of the atmosphere using a satellite-based cloud data product from the International Satellite Cloud Climatology Project (ISCCP). (3) For selected months, the ISCCP-derived fluxes will be compared to the corresponding synoptic regime, and (4) a study to assess the effects of the sampling and analysis procedure on the radiation statistics and their temporal variability will be undertaken. ***