Lightning NOₓ Enhances Oxidants and Atmospheric Warming during the South Asian Pre-Monsoon Season

This study obtains lightning flash count data from the Lightning Imaging Sensor (LIS) aboard two satellite platforms: the Tropical Rainfall Measuring Mission (TRMM, 1997–2014) and the International Space Station (ISS, 2017–2022) at a spatial resolution of 4 km. 2-meter air temperature and planetary boundary layer height data are retrieved from the ERA-5 reanalysis datasets. Surface pollutant concentrations from the Central Pollution Control Board (CPCB) of India stations. Numerical model simulations are carried out to undertstand the role of Lightning NOx in shaping the air quality and climate.本研究从搭载于两个卫星平台的闪电成像传感器（Lightning Imaging Sensor, LIS）获取空间分辨率为4千米的闪电闪数数据，两个平台分别为热带降雨测量任务卫星（Tropical Rainfall Measuring Mission, TRMM，1997–2014年）与国际空间站（International Space Station, ISS，2017–2022年）。研究从ERA-5再分析数据集反演得到2米气温与行星边界层高度数据。地表污染物浓度数据来源于印度中央污染控制委员会（Central Pollution Control Board, CPCB）的监测站点。本研究开展数值模式模拟，以明晰闪电氮氧化物（NOₓ）在塑造空气质量与气候过程中的作用。