Constrained high-resolution projection of hot extremes in the Beijing-Tianjin-Hebei region of China

被引：5
作者：
Yang, Jia-Xi [1 ,2 ]
Zhou, Bai-Quan [3 ]
Zhai, Pan-Mao [3 ]
机构：
[1] China Meteorol Adm, Inst Urban Meteorol, Beijing 100089, Peoples R China
[2] China Meteorol Adm, Key Lab Urban Meteorol, Beijing 100089, Peoples R China
[3] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
来源：
ADVANCES IN CLIMATE CHANGE RESEARCH | 2023年 / 14卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Observational constraint; High-resolution projection; Hot extremes; Beijing-Tianjin-Hebei region; TEMPERATURES; FREQUENCY; MODELS;
D O I：
10.1016/j.accre.2023.04.008
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The Beijing-Tianjin-Hebei (BTH) region is the political center and one of the largest and most dynamic economic centers in China. Relative to other regions of China, it faces greater challenges from increasing hot extremes. However, future projections of regional changes in hot extremes based on multi-model ensembles carry huge uncertainty. To improve the reliability of regional projections, we used the latest highresolution outputs from nine GCMs in CMIP6-HighResMIP and constrained the projection of hot extremes in this region. In the BTH, the historical scaling of the annual maximum temperature with the mean summer (June-August) temperatures (TXx scaling) showed a significant linear relationship with the future TXx scaling in the multi-model ensemble. By comparing the observed and simulated historical TXx scaling we identified an observational constraint that could reduce the uncertainty of TXx scaling. We believed that the simulations of EC-Earth3P, ECEarth3P-HR, MPI-ESM1-2-HR and MPI-ESM1-2-XR show advantages in simulating surface air temperature and related hot extremes in this region. Verification demonstrated that surface air temperature projection in the BTH region constrained by observational constraint is more reliable. In constrained projections, by the 2040s, the increase in summer surface air temperatures is projected to exceed 1 & DEG;C compared to 2010s. Also, the estimated number of days of compound (sequential hot day-night) hot extremes (HND), independent hot nights (HNi) and independent hot days (HDi) was found to increase by 0.3, 0.3, and -0.03 d per year during 2015-2049, respectively. The growth in numbers of days of HND, HNi and HDi was slower after observational constraint. Furthermore, the estimated increase in surface air temperature variables after constraint also reduced. This study provides support for adaptation policy-making and as a reference for the use of observational constraint in other regions of China.
引用
收藏
页码：387 / 393
页数：7
相关论文
共 39 条
[1]  
Borodina A, 2017, J CLIMATE, V30, P9949, DOI [10.1175/JCLI-D-16-0848.1, 10.1175/jcli-d-16-0848.1]
[2]   Reducing Uncertainties in Climate Projections with Emergent Constraints: Concepts, Examples and Prospects [J].
Brient, Florent .
ADVANCES IN ATMOSPHERIC SCIENCES, 2020, 37 (01) :1-15
[3]   Comparing Methods to Constrain Future European Climate Projections Using a Consistent Framework [J].
Brunner, Lukas ;
McSweeney, Carol ;
Ballinger, Andrew P. ;
Befort, Daniel J. ;
Benassi, Marianna ;
Booth, Ben ;
Coppola, Erika ;
de Vries, Hylke ;
Harris, Glen ;
Hegerl, Gabriele C. ;
Knutti, Reto ;
Lenderink, Geert ;
Lowe, Jason ;
Nogherotto, Rita ;
O'Reilly, Chris ;
Qasmi, Said ;
Ribes, Aurelien ;
Stocchi, Paolo ;
Undorf, Sabine .
JOURNAL OF CLIMATE, 2020, 33 (20) :8671-8692
[4]   Constrained CMIP6 projections indicate less warming and a slower increase in water availability across Asia [J].
Chai, Yuanfang ;
Yue, Yao ;
Slater, Louise J. ;
Yin, Jiabo ;
Borthwick, Alistair G. L. ;
Chen, Tiexi ;
Wang, Guojie .
NATURE COMMUNICATIONS, 2022, 13 (01)
[5]   Emergent constraints on future projections of the western North Pacific Subtropical High [J].
Chen, Xiaolong ;
Zhou, Tianjun ;
Wu, Peili ;
Guo, Zhun ;
Wang, Minghuai .
NATURE COMMUNICATIONS, 2020, 11 (01)
[6]   Revisiting summertime hot extremes in China during 1961-2015: Overlooked compound extremes and significant changes [J].
Chen, Yang ;
Zhai, Panmao .
GEOPHYSICAL RESEARCH LETTERS, 2017, 44 (10) :5096-5103
[7]   An observational radiative constraint on hydrologic cycle intensification [J].
DeAngelis, Anthony M. ;
Qu, Xin ;
Zelinka, Mark D. ;
Hall, Alex .
NATURE, 2015, 528 (7581) :249-+
[8]   Overview of the Coupled Model Intercomparison Project Phase 6 (CMIP6) experimental design and organization [J].
Eyring, Veronika ;
Bony, Sandrine ;
Meehl, Gerald A. ;
Senior, Catherine A. ;
Stevens, Bjorn ;
Stouffer, Ronald J. ;
Taylor, Karl E. .
GEOSCIENTIFIC MODEL DEVELOPMENT, 2016, 9 (05) :1937-1958
[9]   Future changes in the frequency of temperature extremes may be underestimated in tropical and subtropical regions [J].
Freychet, N. ;
Hegerl, G. ;
Mitchell, D. ;
Collins, M. .
COMMUNICATIONS EARTH & ENVIRONMENT, 2021, 2 (01)
[10]   Constraining human contributions to observed warming since the pre-industrial period [J].
Gillett, Nathan P. ;
Kirchmeier-Young, Megan ;
Ribes, Aurelien ;
Shiogama, Hideo ;
Hegerl, Gabriele C. ;
Knutti, Reto ;
Gastineau, Guillaume ;
John, Jasmin G. ;
Li, Lijuan ;
Nazarenko, Larissa ;
Rosenbloom, Nan ;
Seland, Oyvind ;
Wu, Tongwen ;
Yukimoto, Seiji ;
Ziehn, Tilo .
NATURE CLIMATE CHANGE, 2021, 11 (03) :207-212
1234