A5055021530- Climate variability and models
- Oceanographic and Atmospheric Processes
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Arctic and Antarctic ice dynamics
- Climate change and permafrost
- Geology and Paleoclimatology Research
- Environmental and Agricultural Sciences
- Marine and coastal ecosystems
- Ocean Waves and Remote Sensing
- Geophysics and Gravity Measurements
- Geomagnetism and Paleomagnetism Studies
- Atmospheric and Environmental Gas Dynamics
- Cryospheric studies and observations
- Hydrological Forecasting Using AI
- Plant Water Relations and Carbon Dynamics
- Digital Transformation in Industry
- Atmospheric chemistry and aerosols
- Blockchain Technology Applications and Security
- Evaluation Methods in Various Fields
- Methane Hydrates and Related Phenomena
- Landfill Environmental Impact Studies
- Climate change impacts on agriculture
Chinese Academy of Meteorological Sciences
2014-2024
China Meteorological Administration
2018-2024
Ministry of Industry and Information Technology
2021
Institute of Atmospheric Physics
2008-2010
Chinese Academy of Sciences
2009-2010
Nansen Environmental and Remote Sensing Center
2008
Beijing University of Technology
2007
Abstract The amplitude asymmetry between El Niño and La Niña is investigated by diagnosing the mixed-layer heat budget during ENSO developing phase using three ocean assimilation products: Simple Ocean Data Assimilation (SODA) 2.0.2, SODA 1.4.2, Global System (GODAS). It found that nonlinear zonal meridional temperature advections are essential to cause in far eastern Pacific, whereas vertical advection has opposite effect. current anomaly dominated geostrophic association with thermocline...
Abstract Using NCEP–NCAR reanalysis and Japanese 25-yr Reanalysis (JRA-25) data, this paper investigates the association between winter sea ice concentration (SIC) in Baffin Bay southward to eastern coast of Newfoundland, ensuing summer atmospheric circulation over mid- high latitudes Eurasia. It is found that SIC anomalies are significantly correlated with 500-hPa height dynamically correspond Eurasian pattern 850-hPa wind variability influence rainfall northern Spring south associated...
Abstract At the beginning of 2014, an El Niño event was predicted to occur in following winter. However, that started develop 2014 hindered boreal summer, and only ocean reached a weak condition. This outcome largely attributed suppressed ocean‐atmosphere interaction caused by anomalous easterly winds eastern equatorial Pacific. These were related negative sea surface temperature anomalies (SSTAs) southeastern subtropical Pacific (SESP). The phase Interdecadal Oscillation (IPO) laid...
Abstract This paper describes two dominant patterns of Asian winter climate variability: the Siberian high (SH) pattern and Asia–Arctic (AA) pattern. The former depicts atmospheric variability closely associated with intensity high, latter characterizes teleconnection between Asia Arctic, which is distinct from Arctic Oscillation (AO). AA plays more important roles in regulating precipitation 850-hPa meridional wind component over East than SH pattern, controls surface air temperature Asia....
A new coupled climate system model (CSM) has been developed at the Chinese Academy of Meteorological Sciences (CAMS) by employing several state-of-the-art component models. The CAMS-CSM consists modified atmospheric [ECmwf-HAMburg (ECHAM5)], ocean [Modular Ocean Model (MOM4)], sea ice [Sea Ice Simulator (SIS)], and land surface [Common Land (CoLM)]. detailed description is presented both pre-industrial "historical" simulations are preliminarily evaluated in this study. can reproduce...
Abstract An interannual variability mode in the southeast Pacific with a physical interpretation similar to that of meridional (PMM) North was recently identified. Both modes have been shown influence subsequent development El Niño–Southern Oscillation (ENSO) events. This study investigates relationship between ENSO and two PMMs using observational reanalysis data. The results show South (SPMM) mainly favors sea surface temperature anomalies (SSTAs) eastern equatorial Pacific, whereas (NPMM)...
Abstract Closely following the hiatus warming period, two astonishing high temperature records reached in 2014 and 2015 consecutively. To investigate occurrence features of record-breaking temperatures recent years, a new index focusing frequency top 10 annual mean was defined this study. Analyses based on shown that occurred over most regions globe with salient increasing trend after 1960 s, even during so-called period. Overlapped ongoing background interdecadal climate variabilities, El...
The northward shift of the Western North Pacific Subtropical High (WNPSH) in July 2018 broke historical record since 1958 and resulted extreme heat waves casualties across Northeast Asia (NEA). In present work, we associated this WNPSH anomaly with anomalies barotropic anticyclone above NEA originating from strongest positive tripole pattern sea surface temperature (SSTA) Atlantic July. Both data analysis numerical experiments indicated that SSTA could produce an upper-tropospheric wave...
Abstract In the summer of 2012, there was a clear signal developing El Niño over equatorial Pacific, and many climate models forecasted occurrence with peak phase in subsequent winter. However, warming aborted abruptly late fall. Here we show that abrupt termination 2012 Pacific largely attributed to anomalous sea surface temperature (SST) cooling northeastern southeastern subtropical Pacific. The SST induced strong easterly low‐level divergence anomalies, suppressing development westerly...
Abstract The initiation and developing mechanisms of four major central Pacific (CP) El Niño events in 1994, 2002, 2004, 2009 were investigated by analyzing oceanic atmospheric reanalysis data. A mixed layer heat budget analysis was conducted the result shows that mechanism 1994 CP is very different from other Niños 2000s, while are similar among these events. initial sea surface temperature (SST) warming caused enhanced solar radiation, which related to meridional overturning circulation...
Abstract This paper describes the historical simulations produced by Chinese Academy of Meteorological Sciences (CAMS) climate system model (CAMS-CSM), which are contributing to phase 6 Coupled Model Intercomparison Project (CMIP6). The description, experiment design and outputs presented. Three members’ experiments conducted CAMS-CSM, with two members starting from different initial conditions, one excluding stratospheric aerosol identify effect volcanic eruptions. also validated using...
Abstract The present study used harmonic and multivariate empirical orthogonal function (MV-EOF) analyses to identify the existence of climatological intraseasonal oscillation (CISO) in diabatic heating, precipitation, circulation East Asian summer monsoon (EASM). strongest CISO signals are found north western North Pacific, possibly because horizontal gradient heating induced by seasonal land–sea thermal contrast. Further, phase relationship between components maintains EASM CISO. first two...
Abstract The impact of the high‐frequency (HF, <90 days) variability on low‐frequency (LF) interannual sea surface temperature (SST) variations associated with El Niño‐Southern Oscillation (ENSO) is investigated by conducting a series oceanic general circulation model experiments. Two nonlinear rectification mechanisms are examined. first internal dynamics and second LF wind stress HF wind. Numerical simulations show that latter dominant in modulating SST variability. increases both...
Abstract Ageostrophic motion regulates the transformation of energy between large‐scale geostrophic and dissipate scale motion. By combining surface drifters satellite altimeter data, we present characteristics submesoscale ageostrophic (SMAM) with a temporal 2–7 day in South China Sea (SCS). The SMAM enhances strength mesoscale eddies, inducing negative vorticity for anticyclonic eddies positive cyclonic eddies. Spatially, is significant explains more than 20% total kinetic Kuroshio branch...
After the quick decaying of 2015 super El Niño, predicted La Niña unexpectedly failed to materialize anticipated standard in 2016. Diagnostic analyses, as well numerical experiments, showed that this ENSO evolution Niño and hindered 2016 may be essentially caused by sea surface temperature anomalies (SSTAs) subtropical Pacific. The self-sustaining SSTAs Pacific tend weaken trade winds during boreal spring–summer, leading anomalous westerlies along equatorial region over a period more than...
A high-impact extreme precipitation event over the Yangtze River valley (YRV) in midsummer of 2016 is simulated using Climate System Model Chinese Academy Meteorological Sciences (CAMS-CSM). After validation model’s capability reproducing climatological features YRV, Transpose Atmospheric Intercomparison Project (T-AMIP)–type experiment, which runs climate model weather forecast mode, applied to investigate performance simulating spatial and temporal distribution rainfall related synoptic...
Climate sensitivity and feedbacks are basic important metrics to a climate system. They determine how large surface air temperature will increase under CO2 forcing ultimately, which is essential for carbon reduction policies achieve specific warming target. In this study, these analyzed in system model newly developed by the Chinese Academy of Meteorological Sciences (CAMS-CSM) compared with multi-model results from Coupled Model Comparison Project phase 5 (CMIP5). Based on two idealized...
The western Pacific subtropical anticyclone ( WPSA ), which bridges the El Niño events and East Asian summer monsoon, is generally enhanced in boreal after events. However, it becomes weaker late (July–August) of 2016, following 2015/2016 super event, indicating failure previous experience. Our results suggest that 2016 associated with extinction Indian Ocean capacitor effect, presenting cold sea surface temperature anomalies SSTAs ) tropical WTIO fast decaying spring. Compared case...
Under the ongoing global warming, sea surface temperature (SST) over entire Indian Ocean (IO) has been warming saliently at a rate of 0.014°C yr−1 since 1950s, which is larger than that in other regions globe. The salient IO reflects synergistic effect and internal variability climate system, could lead to anomalies peripheral regions. simulation performance sustained was evaluated by comparing 37 CMIP5 CMIP6 models with observed data. results show can be captured nearly all CMIP models, but...