Broadband Heating Rate Profile Project (BBHRP) - SGP ripbe370mcfarlane

The objective of the ARM Broadband Heating Rate Profile (BBHRP) Project is to provide a structure for the comprehensive assessment of our ability to model atmospheric radiative transfer for all conditions. Required inputs to BBHRP include surface albedo and profiles of atmospheric state (temperature, humidity), gas concentrations, aerosol properties, and cloud properties. In the past year, the Radiatively Important Parameters Best Estimate (RIPBE) VAP was developed to combine all of the input properties needed for BBHRP into a single gridded input file. Additionally, an interface between the RIPBE input file and the RRTM was developed using the new ARM integrated software development environment (ISDE) and effort was put into developing quality control (qc) flags and provenance information on the BBHRP output files so that analysis of the output would be more straightforward. This new version of BBHRP, sgp1bbhrpripbeC1.c1, uses the RIPBE files as input to RRTM, and calculates broadband SW and LW fluxes and heating rates at 1-min resolution using the independent column approximation. The vertical resolution is 45 m in the lower and middle troposphere to match the input cloud properties, but is at coarser resolution in the upper atmosphere. Unlike previous versions, the vertical grid is the same for both clear-sky and cloudy-sky calculations.

大气辐射测量（Atmospheric Radiation Measurement，ARM）宽带加热率廓线（Broadband Heating Rate Profile，BBHRP）项目旨在构建一套标准化框架，以全面评估各类大气条件下大气辐射传输模拟能力的水平。该项目的必要输入参数包括地表反照率、大气状态廓线（温度、湿度）、气体浓度、气溶胶特性以及云特性参数。在过去一年中，研究团队开发了辐射重要参数最优估计（Radiatively Important Parameters Best Estimate，RIPBE）VAP模块，可将BBHRP所需的全部输入参数整合为单个网格化输入文件。此外，依托ARM全新的集成软件开发环境（Integrated Software Development Environment，ISDE），研发团队搭建了RIPBE输入文件与快速辐射传输模式（Rapid Radiative Transfer Model，RRTM）之间的交互接口；同时针对BBHRP的输出文件开发了质量控制（Quality Control，QC）标记与溯源信息，以简化输出结果的分析流程。本次发布的BBHRP新版本sgp1bbhrpripbeC1.c1以RIPBE文件作为RRTM的输入，采用独立柱近似（Independent Column Approximation）以1分钟的时间分辨率计算宽带短波（Short Wave，SW）与长波（Long Wave，LW）通量及加热率。其垂直分辨率在低层及中层对流层设为45米，以匹配输入的云特性参数，而在高层大气中则采用更为粗糙的分辨率。与此前所有版本不同的是，该版本的晴空与云天辐射计算采用完全一致的垂直网格。