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Article
Climate: a dynamical system with mismatched space and time domains
Climate is a special spatiotemporal dynamical system. Its time scale can be extended indefinitely, but its space scale can never exceed that of the size of the system. We call this a “mismatching” in space and...
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Article
The Tibetan Plateau Surface-Atmosphere Coupling System and Its Weather and Climate Effects: The Third Tibetan Plateau Atmospheric Science Experiment
The Tibetan Plateau (TP) is a key area affecting forecasts of weather and climate in China and occurrences of extreme weather and climate events over the world. The China Meteorological Administration, the Nat...
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Article
Open AccessIdentification of the driving forces of climate change using the longest instrumental temperature record
The identification of causal effects is a fundamental problem in climate change research. Here, a new perspective on climate change causality is presented using the central England temperature (CET) dataset, t...
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Article
Evaluation of the trend uncertainty in summer ozone valley over the Tibetan Plateau in three reanalysis datasets
Trend uncertainty in the ozone valley over the Tibetan Plateau (OVTP) and the South Asian high (SAH) during 1979–2009 in ERA-Interim (interim reanalysis data from the ECMWF), JRA-55 (55-yr reanalysis data from...
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Article
Open AccessResponses of the summer Asian-Pacific zonal thermal contrast and the associated evolution of atmospheric circulation to transient orbital changes during the Holocene
This study investigates the response of large-scale atmospheric circulation over the Asian-Pacific sector and precipitation over eastern China to transient orbital changes during the Holocene summer using an i...
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Article
Extracting the driving force from ozone data using slow feature analysis
Slow feature analysis (SFA) is a recommended technique for extracting slowly varying features from a quickly varying signal. In this work, we apply SFA to total ozone data from Arosa, Switzerland. The results ...
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Article
Causality of global warming seen from observations: a scale analysis of driving force of the surface air temperature time series in the Northern Hemisphere
By using the slow feature analysis, we reconstructed the driving force for an observed monthly surface air temperature anomaly time series in the northern hemisphere. Wavelet transformation technique was then...
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Article
Open AccessSummer precipitation anomalies in Asia and North America induced by Eurasian non-monsoon land heating versus ENSO
When floods ravage Asian monsoon regions in summer, megadroughts often attack extratropical North America, which feature an intercontinental contrasting precipitation anomaly between Asia and North America. Ho...
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Article
Validation of Aura Microwave Limb Sounder water vapor and ozone profiles over the Tibetan Plateau and its adjacent region during boreal summer
We present validation studies of MLS V2.2 and V3.3 water vapor (WV) and ozone profiles over the Tibetan Plateau (Naqu and Lhasa) and its adjacent region (Tengchong) respectively by using the balloon-borne Cryo...
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Article
Stochastic dynamic simulation of the 100-kyr cycles in climate system
Based upon the stochastic resonance theory, the formation mechanism of 100-kyr cycles in climate system is numerically studied in the perspective of stochastic dynamics. In this study, firstly we combine the i...
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Article
A novel method for distinguishing fog and haze based on PM2.5, visibility, and relative humidity
Haze and fog are both low visibility events, but with different physical properties. Haze is caused by the increase of aerosol loading or the hygroscopic growth of aerosol at high relative humidity, whereas vi...
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Article
Millennial-scale phase relationship between North Atlantic deep-level temperature and Qinghai-Tibet Plateau temperature and its evolution since the Last Interglaciation
This study employed proxy data to investigate the phase relationship between the North Atlantic deep-level temperature and the Qinghai-Tibet Plateau (TP) surface air temperature (TP temperature) and its evolut...
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Article
Numerical simulation study of temperature change over East China in the past millennium
Despite many studies on reconstructing the climate changes over the last millennium in China, the cause of the China’s climate change remains unclear. We used the UVic Earth System Climate Model (UVic Model), ...
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Article
Open AccessBoreal summer continental monsoon rainfall and hydroclimate anomalies associated with the Asian-Pacific Oscillation
With the twentieth century analysis data (1901–2002) for atmospheric circulation, precipitation, Palmer drought severity index, and sea surface temperature (SST), we show that the Asian-Pacific Oscillation (AP...
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Article
Open AccessAttenuation of ultraviolet radiation reaching the surface due to atmospheric aerosols in Guangzhou
The UV attenuation due to atmospheric aerosols in Guangzhou was quantitatively assessed using surface ultraviolet radiation (UV, 295–385 nm) observation, sun photometer and radiation models. Observations showe...
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Article
Analysis of reconstructed annual precipitation from tree-rings for the past 500 years in the middle Qilian Mountain
The ring-width chronology of a Juniperus przewalskii tree from the middle of the Qilian Mountain was constructed to estimate the annual precipitation (from previous August to current July) since AD 1480. The reco...
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Article
Onset of East Asian subtropical summer monsoon and rainy season in China
Here we use harmonic analyses to examine seasonal variations of China land rainfall, low-level winds, and atmospheric heating over East Asia during spring to summer and the associated subtropical summer monsoo...
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Article
Open AccessDecadal-centennial-scale change in Asian-Pacific summer thermal contrast and solar activity
To study the temporally varying features of summer thermal contrast between the Asian continent and the adjacent ocean on decadal-centennial time scales and the links between thermal contrast and solar irradia...
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Article
Open AccessThe characteristics and regularities of the climate change over the past millennium in China
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Article
Open AccessA novel approach in predicting non-stationary time series by combining external forces
In this paper, we investigate a novel technique that reconstructs the observed time series and incorporates driving forces. Furthermore, to illustrate and test the technique, we consider a couple of predictive...