DOI: 10.1002/joc.5552
论文题名: Two new sea surface temperature anomalies indices for capturing the eastern and central equatorial Pacific type El Niño-Southern Oscillation events during boreal summer
作者: Wang M. ; Guan Z. ; Jin D.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 11 起始页码: 4066
结束页码: 4076
语种: 英语
英文关键词: boreal summer
; climate variation
; El Niño/La Niña
; sea surface temperature anomaly pattern
; SSTA index
Scopus关键词: Atmospheric pressure
; Climate change
; Coastal zones
; Oceanography
; Submarine geophysics
; Surface properties
; Surface waters
; Boreal summer
; Climate variation
; National center for atmospheric researches
; National centers for environmental predictions
; Near surface air temperature
; Sea surface temperature anomalies
; SSTA index
; Summer sea-surface temperatures
; Atmospheric temperature
; climate variation
; El Nino-Southern Oscillation
; sea surface temperature
; spatial variation
; summer
; temperature anomaly
; temporal variation
; Pacific Ocean
; Pacific Ocean (Equatorial)
英文摘要: Using monthly mean data from the Hadley Center and the National Centers for Environmental Prediction-National Center for Atmospheric Research (NCEP-NCAR) reanalysis, we have constructed two new indices ICP and IEP of boreal summer sea surface temperature anomalies (SSTA) in equatorial Pacific for period of 1963–2016 by employing methods including the six-order polynomial fitting and pattern correlations. The new indices ICP and IEP are almost independent of each other. Using these two indices, we are able to successfully capture the main features of central Pacific (CP) and eastern Pacific (EP) type SSTA variations in tropical Pacific in both spatial and temporal. The EP-type SSTA events vary on inter-annual timescales whereas CP-type events vary on both inter-annual and inter-decadal. For the CP-type events, stronger positive (negative) SST anomalies are observed in central tropical Pacific while weaker SSTA in the Maritime Continent (MC) and eastern equatorial Pacific during positive (negative) phase of index ICP. However, For EP-type events, the stronger SSTAs appear in both the equatorial Pacific region east of dateline and Peruvian coastal ocean while weaker SSTAs in MC and western equatorial Pacific regions. Both the anomalous heating induced by CP- and EP-type SSTA may force the atmosphere to respond, resulting in different types of anomalous patterns of circulations, rainfall, and near-surface air temperatures. These results indicate that the new indexes are useful for our better investigating the CP- and EP-type summer SSTA events as well as their climate impacts, thereby providing a clue to monitoring and predicting strong SSTA events in equatorial Pacific. © 2018 The Authors. International Journal of Climatology published by John Wiley & Sons Ltd on behalf of the Royal Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116811
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Key Laboratory of Meteorological Disasters of China Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, China; Taizhou Meteorological Bureau, Taizhou, China
Recommended Citation:
Wang M.,Guan Z.,Jin D.. Two new sea surface temperature anomalies indices for capturing the eastern and central equatorial Pacific type El Niño-Southern Oscillation events during boreal summer[J]. International Journal of Climatology,2018-01-01,38(11)