气候变化领域集成服务门户(CCPortal): A framework to quantify the inter-annual variation in near-surface air temperature due to change in precipitation in snow-free regions

CCPortal

DOI	10.1088/1748-9326/abbc94
	A framework to quantify the inter-annual variation in near-surface air temperature due to change in precipitation in snow-free regions
	Yin D.; Roderick M.L.
发表日期	2020
ISSN	17489318
卷号	15 期号:11
英文摘要	A negative correlation between near-surface air temperature (T a) and precipitation (P) has long been recognized over many land regions, but a predictive quantitative relationship has not yet been established. In this study, we examine inter-annual variations in T a with P and investigate how the T a-P relationship varies with aridity in regions without snow coverage. The wetness index is used as a measure of aridity (defined as the ratio of mean annual P to E o, with E o the net radiation expressed as an equivalent depth of water), with wetness index more (less) than 1.0 used to define the wet (dry) regions. Results show that variations in T a are independent of P in wet environments, while in dry environments the variations in T a with P increase with aridity. We use that relationship to establish a quantitative framework to a priori predict the T a-P relation based on aridity. The results highlight the importance of inter-annual variations in P in changing T a in dry environments, since it has similar magnitude with the decadal global warming signals over land. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	air temperature; aridity index; land-atmosphere feedbacks; precipitation
语种	英语
scopus关键词	Atmospheric thermodynamics; Global warming; Snow; Dry environment; Equivalent depth; Interannual variation; Near surface air temperature; Negative correlation; Quantitative frameworks; Relation-based; Snow coverage; Atmospheric temperature; air temperature; annual variation; aridity; global warming; precipitation (climatology); snow
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153490
作者单位	College of Land Science and Technology, China Agricultural University, Beijing, 100083, China; Research School of Earth Sciences, Australian National University, Canberra, ACT 2601, Australia; Australian Research Council Centre of Excellence for Climate Extremes, Canberra, ACT 2601, Australia
推荐引用方式 GB/T 7714	Yin D.,Roderick M.L.. A framework to quantify the inter-annual variation in near-surface air temperature due to change in precipitation in snow-free regions[J],2020,15(11).
APA	Yin D.,&Roderick M.L..(2020).A framework to quantify the inter-annual variation in near-surface air temperature due to change in precipitation in snow-free regions.Environmental Research Letters,15(11).
MLA	Yin D.,et al."A framework to quantify the inter-annual variation in near-surface air temperature due to change in precipitation in snow-free regions".Environmental Research Letters 15.11(2020).