国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

Chinese researchers develop advanced air quality model for pollution simulation

Xinhua | Updated: 2025-12-23 16:33
Share
Share - WeChat

BEIJING -- Chinese researchers have developed a new air quality model that enables more accurate simulation of two major pollutants: fine particulate matter and ground-level ozone.

Named the Emission and Atmospheric Processes Integrated and Coupled Community Model (EPICC), it provides a refined tool for understanding and managing complex air pollution challenges, especially in fast-developing regions.

Unlike earlier air quality models, which were typically developed by individual researchers or small teams -- an approach that often constrained overall progress -- this initiative adopted a collaborative framework. Scientists formed the "EPICC Model Working Group," comprising 59 researchers from 13 institutions, including the Institute of Atmospheric Physics of the Chinese Academy of Sciences, Tsinghua University, and Peking University.

Air quality models play a critical role in studying the formation, transport, and transformation of pollutants in the lower atmosphere, supporting the design of effective pollution control strategies. While leading models have historically originated in the United States, the researchers noted that such models are not always well-suited to China's unique pollution profile, which includes coal smoke, photochemical smog, and severe haze.

The EPICC model integrates the latest scientific insights into key atmospheric processes. Designed with a modular structure, it allows components to be easily updated or interchanged. The model incorporates advanced chemical representations, such as manganese-catalyzed sulfate formation and aerosol-sunlight interactions.

According to the working group, performance tests demonstrate that EPICC version 1.0 significantly improves the simulation accuracy of particulate matter with a diameter of 2.5 micrometers or less (PM2.5) and ozone. It addresses common shortcomings of earlier models, which tended to underestimate sulfate pollution and overestimate summer ozone concentrations.

"This model can serve as a more effective decision-support tool not only for China but also for other rapidly developing countries grappling with similarly complex air pollution issues," the working group added.

The study detailing the new model has been published in the journal Advances in Atmospheric Sciences.

Top
BACK TO THE TOP
English
Copyright 1994 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
咸阳市| 开阳县| 高邮市| 公安县| 资中县| 田东县| 衡南县| 商河县| 宁波市| 阳城县| 榆中县| 龙山县| 芜湖市| 左云县| 乌鲁木齐县| 博白县| 萝北县| 五峰| 神木县| 色达县| 鲁山县| 通榆县| 河间市| 井研县| 额济纳旗| 晋州市| 玉林市| 海门市| 南郑县| 罗田县| 大化| 新泰市| 洛南县| 文登市| 通渭县| 即墨市| 元阳县| 溧水县| 阳山县| 阿拉善右旗| 泾阳县|