气候变化领域集成服务门户(CCPortal): The sea level variability and its projections over the Indo‐Pacific Ocean in CMIP5 models

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DOI	10.1007/s00382-021-05701-3
	The sea level variability and its projections over the Indo‐Pacific Ocean in CMIP5 models
	Deepa J.S.; Gnanaseelan C.; Parekh A.
发表日期	2021
ISSN	0930-7575
起始页码	2173
结束页码	2182
英文摘要	The present study examines the representation of interannual and decadal variability of sea level over the Indo-Pacific region in the Coupled Model Intercomparison Project Phase 5 (CMIP5) historical simulations and future projections. The thermocline ridge region of the Indian Ocean (TRIO) shows strong sea level variability on both the interannual and decadal timescales in the CMIP5 historical simulations. Meanwhile, prominent interannual variability is seen in the tropical western Pacific and central to eastern equatorial Pacific, whereas, the decadal sea level variability is dominant in the North Pacific and western Pacific regions. CMIP5 models project similar spatial patterns of sea level variability over the Indo-Pacific region for the twenty-first century under the mid-range and high future emission scenarios, although with some differences in the amplitude and inter-model disagreement. In the interannual timescale, there is a regional contrast in the projected future variability between the Pacific (with increase in variability with increasing greenhouse gas emissions) and TRIO (with decrease of ~ 6 % variability), which is evident in both RCP4.5 and RCP8.5 future emission scenarios with inter-model consensus. On the other hand, increase in decadal sea level variability (~ 6 % and ~ 8 % in RCP4.5 and RCP8.5 scenarios respectively) is projected over the North Pacific region (north of 30°N). In the Indian Ocean, increase in decadal sea level variability is projected over the northwestern region including Arabian Sea, though it is not a region of large decadal variability (in the reanalysis and historical simulations). Analysis revealed that the local wind forcing (wind stress curl) plays a dominant role in the sea level variability over the Indo-Pacific region on both interannual and decadal timescales. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
英文关键词	CMIP5; Emission scenarios; Indo-Pacific Ocean; Interannual‐decadal variability; Sea level
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183546
作者单位	Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Pune, 411008, India
推荐引用方式 GB/T 7714	Deepa J.S.,Gnanaseelan C.,Parekh A.. The sea level variability and its projections over the Indo‐Pacific Ocean in CMIP5 models[J],2021.
APA	Deepa J.S.,Gnanaseelan C.,&Parekh A..(2021).The sea level variability and its projections over the Indo‐Pacific Ocean in CMIP5 models.Climate Dynamics.
MLA	Deepa J.S.,et al."The sea level variability and its projections over the Indo‐Pacific Ocean in CMIP5 models".Climate Dynamics (2021).