CESM2.2 CAM-chem as Boundary Conditions

We have saved CAM-chem simulation output that is intended to be used as boundary conditions for regional modeling. We used CAM-chem at 0.9 degree by 1.25 degree horizontal resolution simulation with 32 vertical levels. Temperatures, and winds are adjusted to MERRA2 reanalysis fields with a 12 hour relaxation (10%). Data is saved as instantaneous fields every 6 hours into daily files.Chemistry is the MOZART-T1 mechanism. Descriptions of all simulated species are available online. We use the MAM4-VBS scheme to model aerosols. Anthropogenic emissions are from CAMS V5.1. Biogenic emissions are from online MEGAN2.1. The fire emissions are from QFED CO2 fields combined with emission factors collated for the FINN inventory to create all the emissions necessary for the CAM-chem simulation. Online ocean DMS emissions are used.

搜集汇总

背景与挑战

背景概述

该数据集提供了CESM2.2 CAM-chem模型模拟的全球输出，旨在作为区域气候和空气质量建模的边界条件。数据包含2001年至2023年期间每6小时的瞬时场和月平均场，水平分辨率0.9°×1.25°，垂直32层，并经过MERRA2再分析场调整。化学机制采用MOZART-T1，气溶胶使用MAM4-VBS方案，排放源整合了CAMS V5.1人为排放、MEGAN2.1生物排放和基于QFED CO2与FINN排放因子的火灾排放。