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| 1 | A comparative study of the atmospheric circulations associated with rainy-season floods between the Yangtze and Huaihe River Basins显示文摘Here we present the results from the composite analyses of the atmospheric circulations and physical quantity fields associated with rainy-season for the selected floods cases over the Yangtze and Huaihe River basins for the 21 years(1990–2010),using the daily rain gauge measurements taken in the 756 stations throughout China and the NCEP/reanalysis data for the rainyseasons(June–July)from 1990 to 2010.The major differences in the atmospheric circulations and physical quantity fields between the Yangtze and Huaihe River basins are as follows:for flooding years of the Yangtze River Basin,the South Asia high center is located further east than normal,the blocking high over the Urals and the Sea of Okhotsk maintains,and the Meiyu front is situated near 30°N whereas for flooding years of the Huaihe River Basin,the South Asia high center is further west than normal,the atmospheric circulations over the mid and high latitudes in the Northern Hemisphere are of meridional distribution,and the Meiyu front is situated near 33°N.In addition,there are distinct differences in water vapor sources and associated transports between the Yangtze and Huaihe River basins.The water vapor is transported by southwesterly flows from the Bay of Bengal and monsoon flows over the South China Sea for flooding years of the Yangtze River Basin whereas by southeast monsoons from the eastern and southern seas off China and monsoon flows over the South China Sea for flooding years of the Huaihe River Basin. | PING Fan TANG XiBa GAO ShouTing LUO ZheXian | 2014 | Science China Earth Sciences2014，57，7： | 3 |
| 2 | Convective Bursts Episode of the Rapidly Intensified Typhoon Mujigae(2015)显示文摘Convective burst(CB) characteristics at distinct stages of a rapidly intensified Typhoon Mujigae(2015), are investigated based on a 72-h simulation. The spatial features show that almost all CB elements develop in the eyewall. The number of CBs in the inner-core region within a 100 km radius—which account for a large proportion of the total CBs, with a sharp increase about 6 h before the onset of rapid intensification(RI)—provides some indication of the RI of the typhoon. The CBs during pre-RI and RI are examined from dynamic and thermodynamic viewpoints. The combination of lower-level convergent inflow and upper-level divergent outflow pushes a relay-race-like transmission of convective activity, favorable for the development of deep convection. A double warm-core structure is induced by the centripetal outflow sinking and warming associated with CBs, which directly accelerates RI by a sudden decrease in hydrostatic pressure. By utilizing the convection activity degree(CAD) index derived from the local total energy anomaly, a correlation formula between CBs and CAD is deduced.Furthermore, an intense CAD(ICAD) signal threshold(with a value equal to 100) to predict CBs is obtained. It is verified that this ICAD threshold is effective for estimating the occurrence of a CB episode and predicting RI of a typhoon. Therefore,this threshold may be a valuable tool for identifying CB episodes and forecasting rapidly intensified typhoons. | Shuai YANG Xiba TANG Shuixin ZHONG Bin CHEN Yushu ZHOU Shouting GAO Chengxin WANG | 2019 | Advances in Atmospheric Sciences2019，36，5： | 2 |
| 3 | A simulation of merger of convec- tive clouds in the torrential rainfall assaciated with the Meiyu front显示文摘 | Ping Fan Luo Zhexian Tang Xiba | 2014 | Meteorology and Atmospheric Physics2014，123，12： | 1 |
| 4 | On the rapid intensification for Typhoon Meranti(2016):convection,warm core,and heating budget显示文摘Through a cloud-resolving simulation of the rapid intensification(RI)of Typhoon Meranti(2016),the convections,warm core,and heating budget are investigated during the process of RI.By investigating the spatial distributions and temporal evolutions of both convectivestratiform precipitation and shallow-deep convections,we find that the inner-core convections take mode turns,from stratiform-precipitation(SP)dominance to convectiveprecipitation(CP)prevalence during the transition stages between pre-RI and RI.For the CP,it experiences fewer convections before RI,and the conversion from moderate/moderate-deep convections to moderate-deep/deep convections during RI.There is a clear upper-level warm-core structure during the process of RI.However,the mid-lowlevel warming begins first,before the RI of Meranti.By calculating the local potential temperature(0)budget of various convections,the link between convections and the warm core(and further to RI via the pressure drop due to the warming core)is established.Also,the transport pathways of heating toward the center of Meranti driven by pressure are illuminated.The total hydrostatic pressure decline is determined by the mid-low-level warm anomaly before RI,mostly caused by SP.The azimuthal-mean diabatic heating is the largest heating source,the mean vertical heat advection controls the vertical downwards transport by adiabatic warming of compensating downdrafts above eye region,and then the radial 6 advection term radially transports heat toward the center of Meranti in a slantwise direction.Accompanying the onset of RI,the heating efficiency of the upper-level warming core rises swiftly and overruns that of the mid-low-level warmanomaly, dominating the total pressure decrease and beingmainly led by moderate-deep and deep convections. Asidefrom the characteristics in common with SP, for CP, theeddy component of radial advection also plays a positiverole in warming the core, which enhances the centripetaltransport effect and accelerates the RI of Meranti. | Xiba TANG Fan PING Shuai YANG Mengxia LI Jing PENG | 2019 | Frontiers of Earth Science2019，13，4： | 1 |
| 5 | 台风‘彩虹’(2015)快速加强前的高层位涡异常及其对海温降低的响应显示文摘利用数值模拟,研究了台风‘彩虹’快速增强(RI)前的高层位涡异常及其对海温改变的响应。发现RI前6小时高对流层位涡异常显著,伴随深对流的发展,对RI有一定预示作用。位涡收支分析表明,与深对流相关的非绝热加热项和垂直输送项是高层位涡异常的主要原因;降低海温的数值模拟进一步验证了深对流对高层位涡异常的关键作用。本文从高低层相互作用的视角,阐明除了海温,高层位涡异常也成为区分RI与非RI热带气旋的重要因素之一。 | TANG Xiba YANG Shuai PING Fan PENG Jing | 2020 | Atmospheric and Oceanic Science Letters2020，13，5： | 0 |
| 6 | Trends in carbon sink along the Belt and Road in the future under high emission scenario显示文摘目前,在区域尺度,NEP趋势变化的强度和影响机制还存在很大的不确定性.针对这一问题,我们选取了一带一路覆盖的区域为研究对象,基于全球陆面模式(CABLE)和第六次国际耦合模式比较计划(CMIP6),评估了历史和未来NEP趋势的变化,分析了影响的机制.从过去到未来,CABLE结果表明NEP的趋势从0.015 Pg C yr^(-2)减少到-0.023 Pg C yr^(-2);CMIP6结果为从0.014 Pg C yr^(-2)转变为-0.009 Pg C yr^(-2).气候变化是引起这一变化的主因.我们的研究结果强调了碳-气候-氮相互作用的重要性,这对碳中和目标下碳汇潜力的准确估算尤为重要. | Jing Peng Li Dan Xiba Tang Fuqiang Yang | 2022 | Atmospheric and Oceanic Science Letters2022，15，3： | 0 |
| 7 | Phosphorus Limitation on Carbon Sequestration in China under RCP8.5显示文摘Currently,there is a lack of understanding regarding carbon(C)sequestration in China arising as a result of phosphorus(P)limitation.In this study,a global land surface model(CABLE)was used to investigate the response of C uptake to P limitation after 1901.In China,P limitation resulted in reduced net primary production(NPP),heterotrophic respiration,and net ecosystem production(NEP)in both the 2030s and the 2060s.The reductions in NEP in the period2061–70 varied from 0.32 Pg C yr^(-1)in China to 5.50 Pg C yr^(-1)at the global scale,translating to a decrease of 15.0%for China and 7.6%globally in the period 2061–70,relative to the changes including C and nitrogen cycles.These ranges reflect variations in the magnitude of P limitation on C uptake(or storage)at the regional and global scales.Both in China and at the global scale,these differences can be attributed to differences in soil nutrient controls on C uptake,or positive feedback between NPP and soil decomposition rates,or both.Our results highlight the strong ability of P limitation to influence the pattern,response,and magnitude of C uptake under future conditions(2030s–2060s),which may help to clarify the potential influence of P limitation when projecting C uptake in China. | Jing PENG Li DAN Xiba TANG | 2023 | Advances in Atmospheric Sciences2023，40，7： | 0 |
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