High Mountain Asia 12 km Modeled Estimates of Aerosol Transport, Chemistry, and Deposition Reanalysis, 2003-2019 V001

This data set contains a 12 km resolution, simulated reanalysis of aerosol transport, chemistry, and deposition over the High Mountain Asia (HMA) region for 1 January 2003 through 31 August 2019.

Two-dimensional surface data are provided at one hour intervals. Three-dimensional atmospheric data are provided at three-hour intervals for 35 sigma levels extending from the surface to 50 hPa.

Also known as the Model for Atmospheric Transport and Chemistry in Asia (MATCHA), the data comprise a wide range of variables intended to help assess the impacts of aerosols on the cryosphere in the HMA region, including: concentrations of black/brown carbon and other light absorbing particles (LAPs), broken out by source region; longwave/shortwave heating rates due to LAPs; wet/dry deposition of LAPs; precipitation and hydrological data; and meteorological state variables.

The simulation was generated using a fully coupled, regional chemistry-climate model (WRF-Chem-CLM-SNICAR), constrained by aerosol optical depth (AOD) and carbon monoxide (CO) satellite observations acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) and Measurements Of Pollution In The Troposphere (MOPITT) instruments, respectively.

本数据集包含了对高山区亚洲（HMA）区域2003年1月1日至2019年8月31日期间气溶胶传输、化学成分及沉降过程的12公里分辨率模拟再分析数据。该数据集以一小时的间隔提供二维地表数据，以三小时的间隔提供覆盖地表至50 hPa的35个sigma水平的三维大气数据。该数据集亦称为亚洲大气传输与化学模型（MATCHA），其中包含了广泛变量，旨在协助评估气溶胶对HMA区域冰雪圈的影响，包括：源自不同区域的黑/棕色碳及其他光吸收粒子（LAPs）的浓度；由LAPs引起的长波/短波加热速率；LAPs的湿/干沉降；降水及水文数据；以及气象状态变量。模拟数据系采用完全耦合的区域化学气候模型（WRF-Chem-CLM-SNICAR）生成，并通过中分辨率成像光谱仪（MODIS）和大气中污染测量仪（MOPITT）获取的气溶胶光学厚度（AOD）和一氧化碳（CO）卫星观测数据进行约束。