气候变化领域集成服务门户(CCPortal): Effects of land use and anthropogenic aerosol emissions in the Roman Empire

CCPortal

DOI	10.5194/cp-15-1885-2019
	Effects of land use and anthropogenic aerosol emissions in the Roman Empire
	Gilgen A.; Wilkenskjeld S.; Kaplan J.O.; Kühn T.; Lohmann U.
发表日期	2019
ISSN	18149324
起始页码	1885
结束页码	1911
卷号	15 期号:5
英文摘要	As one of the first transcontinental polities that led to widespread anthropogenic modification of the environment, the influence of the Roman Empire on European climate has been studied for more than 20 years. Recent advances in our understanding of past land use and aerosol-climate interactions make it valuable to revisit the way humans may have affected the climate of the Roman era. Here we estimate the effect of humans on some climate variables in the Roman Empire at its apogee, focusing on the impact of anthropogenic land cover and aerosol emissions. For this we combined existing land use scenarios with novel estimates (low, medium, high) of aerosol emissions from fuel combustion and burning of agricultural land. Aerosol emissions from agricultural burning were greater than those from fuel consumption but of the same order of magnitude. Using the global aerosol-enabled climate model ECHAM-HAM-SALSA, we conducted simulations with fixed sea-surface temperatures to gain a first impression about the possible climate impact of anthropogenic land cover and aerosols in the Roman Empire. While land use effects induced a regional warming for one of the reconstructions caused by decreases in turbulent flux, aerosol emissions enhanced the cooling effect of clouds and thus led to a cooling in the Roman Empire. Quantifying the anthropogenic influence on climate is, however, challenging since our model likely overestimates aerosol-effective radiative forcing and prescribes the sea-surface temperatures. © 2019 Author(s).
语种	英语
scopus关键词	aerosol; anthropogenic effect; climate effect; climate modeling; emission; land use change; paleoclimate; paleoenvironment; reconstruction; Roman era; sea surface temperature; Europe
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146771
作者单位	ETH Zürich, Institute for Atmospheric and Climate Science, Zurich, Switzerland; Land in the Earth System, Max Plack Institute for Meteorology, Hamburg, Germany; Institute of Geography, University of Augsburg, Augsburg, Germany; Department of Earth Sciences, University of Hong Kong, Hong Kong; Atmospheric Research Centre of Eastern Finland, Finnish Meteorological Institute, Kuopio, Finland; Aerosol Physics Research Group, University of Eastern Finland, Kuopio, Finland
推荐引用方式 GB/T 7714	Gilgen A.,Wilkenskjeld S.,Kaplan J.O.,et al. Effects of land use and anthropogenic aerosol emissions in the Roman Empire[J],2019,15(5).
APA	Gilgen A.,Wilkenskjeld S.,Kaplan J.O.,Kühn T.,&Lohmann U..(2019).Effects of land use and anthropogenic aerosol emissions in the Roman Empire.Climate of the Past,15(5).
MLA	Gilgen A.,et al."Effects of land use and anthropogenic aerosol emissions in the Roman Empire".Climate of the Past 15.5(2019).