Airborne Doppler Radar Investigation of Atmospheric Convection in TOGA COARE

这项拨款支持一项机载多普勒雷达计划， 大气感热和动量的测量 热带海洋全球大气计划的预算 海洋大气响应实验（TOGA COARE）。 主 研究的目的是获得更好的估计， 所有术语的大小和垂直分布 对流扰动大气感热收支 西太平洋暖池区。 实现这一 目标，PI将利用这两个事实， NOAA P3飞机和NCAR Electra飞机将在 装有仪器，以获得双多普勒雷达测量结果， 双波束天线 该机还将配备 边界层仪器，云微物理传感器， 辐射计 PI将使用三架飞机， 配备船/岛测深系统网络和陆基 雷达，以获得关键信息，用于计算 热量和动量预算 与下列各项相关的术语 天气尺度流可以从探测系统中估计出来 数据飞机上的辐射测量将用于 估算与辐射输入和输出有关的项 云。 进行的降水和边界层测量 飞机和地面网络都将提供 的重要限制和边界条件， 计算。 机载双多普勒雷达数据将提供 用于计算预算条款的关键信息 与云中的空气运动有关。 这项研究很重要，因为它有可能 增加对对流和云如何影响 年际时间尺度上的气候 该项目是 跨部门TOGA COARE计划。

This grant supports a program of airborne Doppler-radar measurements to study the atmospheric sensible heat and momentum budgets in the Tropical Ocean Global Atmosphere Program's Coupled Ocean Atmosphere Response Experiment (TOGA COARE). The primary objective of the research is to obtain better estimates of the magnitudes and vertical profiles of all the terms in the atmospheric sensible heat budget in convectively disturbed regions over the western Pacific warm pool. To achieve this objective, the PIs will take advantage of the fact that the two NOAA P3 aircraft and the NCAR Electra aircraft will be instrumented to obtain dual-doppler radar measurements by means of dual-beam antennas. The aircraft will also be equipped with boundary-layer instruments, cloud microphysical sensors, and radiometers. The PI will use the three aircraft, in conjunction with a ship/island network of sounding systems and surface-based radars, to obtain key information for calculating the terms in the heat and momentum budgets. Terms associated with the synopticscale flow can be estimated from the sounding-system data. Radiation measurements aboard the aircraft will be used to estimate the terms associated with radiative transfer in and out of cloud. Precipitation and boundary-layer measurements made both by the aircraft and by the surface network will provide important constraints and boundary conditions for the calculations. The airborne dual-Doppler radar data will provide key information for calculating the terms in the budgets associated with in-cloud air motions. This research is important because it has the potential to increase understanding of how convection and clouds influence climate on interannual time scales. This project is part of the interagency TOGA COARE program.