Open AccessResponses of abrupt temperature changes/warming hiatuses to changes in their influencing factors: A case study of northern China
Author(s) -
Liang Longteng,
Ma Long,
Feng Qi,
Liu Tingxi,
Sun Bolin,
Zhou Ying
Publication year - 2020
Publication title -
meteorological applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 59
eISSN - 1469-8080
pISSN - 1350-4827
DOI - 10.1002/met.1937
Subject(s) - environmental science , climatology , radiative forcing , forcing (mathematics) , pacific decadal oscillation , atmospheric sciences , global warming , relative humidity , global temperature , oscillation (cell signaling) , climate change , el niño southern oscillation , geology , meteorology , oceanography , chemistry , geography , biochemistry
Determining the response of abrupt temperature changes/warming hiatuses to changes in their influencing factors can provide a reference for investigating their mechanism. The present study, using the Mann–Kendall test, based on data (including average minimum temperature ( T min ), average temperature ( T ave ) and average maximum temperature ( T max )) recorded at 357 meteorological stations in northern China and its surrounding regions as well as large‐spatial‐scale data (e.g. Atlantic multidecadal oscillation (AMO), global radiative forcing of CO 2 (RF CO2 ) and radiative forcing of annual greenhouse gases (RF AGG )) for the period 1951–2016, the characteristics of abrupt temperature changes/warming hiatuses and their response to their influencing factors were qualitatively and quantitatively determined. The following results were obtained. Overall, from the late 1970s to the 1990s, as the RF AGG continuously increased, the Pacific decadal oscillation (PDO) remained in a positive phase, the AMO and total solar radiation (SR) continuously increased, the multivariate El Niño southern oscillation (ENSO) index (MEI) changed abruptly, the wind speed (WS), atmospheric pressure (AP) and relative humidity (RH) in each zone continuously decreased/increased, their trends changing subsequently, and abrupt changes in the three temperature metrics (i.e. the T min , T ave and T max ) occurred in each zone during the period 1977–2004. Similarly, in the 1990s, particularly after 1998, as the increase in the AMO slowed, the PDO was in either a positive phase but exhibited a decreasing trend or a negative phase, the MEI and SR decreased, the WS, AP and RH decreased/increased, with subsequent changes in trends, and warming hiatuses occurred. The sensitivities of the responses of the T min to changes in the three types of influencing factors were the highest, followed by those of the T ave and T max . The effects of various influencing factors on the three kinds of temperature change and warming hiatus have strong spatial and temporal differences. As a result, there was a strong spatial difference in the year of the abrupt temperature change and the warming hiatus.