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Journal of environmental Sciences 2013年第7期25卷 1450-1457页

作者： cheng-di dong chiu-wen chen chih-feng chen department of marine environmental engineering "National" Kaohsiung Marine University

Thedistribution, enrichment, accumulation, and potential ecological risk of chromium （Cr） in the surface sediments of northern kaohsiung Harbor, taiwan, chinawere investigated. Sediment samples from ten locations located between the river mouths and harbor entrance of northern kaohsiung Harborwere collected quarterly in 2011 and characterized for Cr, aluminum,water content, organic matter, total nitrogen, total phosphorous, total grease, and grain size. Results showed that the Cr concentrations varied from 27.0 to361.9 mg/kgwith an average of （113.5 ± 87.0） mg/kg. High Cr concentrationwas observed near the Jen-Gen River mouth. The mean Cr concentrationwas high at 255.5 mg/kg,whichwas at least 2 to 7 times than that of other sites. This might imply significant Cr contribution from upstream receiving tannerieswastewater into the Jen-Gen River. The spatialdistribution of Cr reveals relatively high in the river mouth region, especially in Jen-Gen River, and graduallydiminishes toward the harbor entrance region. This indicates that the major sources of Cr pollution from upstream industrial and municipalwastewatersdischarged along the river bank; and Cr maydriftwith sea current and bedispersed into open sea. Moreover, Cr concentrations correlated closely to the physical-chemical properties of the sediments,which suggested the influence of industrial and municipalwastewatersdischarged from the neighboring industrial parks and river basins. Results from the enrichment factor andgeo-accumulation index analyses imply that the Jen-Gen River sediments can be characterized as moderate enrichment and none to medium accumulation of Cr, respectively. However, results of potential ecological risk index indicate that the sediment has low ecological potential risk. The results can provide valuable information todeveloping future strategies for the management of river mouth and harbor.

关键词： accumulation chromium ecological risk enrichment sediment

New Record Ocean Temperatures and Related Climate Indicators in 2023

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Advances in Atmospheric Sciences 2024年第6期41卷 1068-1082页

作者： Lijing cheng John ABRAHAM Kevin E.TRENBERTH Tim BOYER Michael EMANN Jiang ZHU Fan WANG Fujiang YU Ricardo LOCARNINI John FASULLO Fei ZHENG Yuanlong LI Bin ZHANG Liying WAN Xingrong chen Dakui WANG Licheng feng Xiangzhou SONG Yulong LIU Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin chen Alexey MISHONOV Jim REAGAN Karina VON SCHUCKMANN Yuying PAN Zhetao TAN Yujing ZHU Wangxu WEI Guancheng LI Qiuping REN Lijuan CAO Yayang LU International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China university of St.Thomas School of EngineeringMinnesota 55105USA NSF national Center for Atmospheric Research BoulderColorado 80307USA university of Auckland Auckland 1010New Zealand national Oceanic and Atmospheric Administration National Centers for Environmental InformationSilver SpringMaryland 20910USA department of Earth and environmental Science University of PennsylvaniaPhiladelphiaPennsylvania 19104USA Institute of Oceanology Chinese Academy of SciencesQingdao 266071China national marine environmental Forecasting Center Ministry of Natural Resources of ChinaBeijing 100081China Oceanographic Data Center Chinese Academy of SciencesQingdao 266071China College of Oceanography Hohai UniversityNanjing 210098China national marine Data and Information Service Tianjin 300171China Italian national Agency for New Technologies Energy and Sustainable Economic DevelopmentS.Teresa Research CenterLerici 19032Italy Istituto Nazionale di Geofisica e Vulcanologia Sede di BolognaBologna 40128Italy South china Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301China ESSIC/CISESS-MD University of MarylandCollege ParkMD20740USA Mercator Ocean International Toulouse 31400France Eco-environmental Monitoring and Research Center Pearl River Valley and South China Sea Ecology and Environment AdministrationMinistry of Ecology and EnvironmentPRCGuangzhou 510611China national Meteorological Information Center China Meteorological AdministrationBeijing 100081China International Research Center of Big Data for Sustainable Development Goals Beijing 100094China

The global physical and biogeochemical environment has been substantially altered in response to increased atmospheric greenhouse gases from human *** 2023,the sea surface temperature(SST)and upper 2000 m ocean heat content(OHC)reached record *** 0–2000 m OHC in 2023 exceeded that of 2022 by 15±10 ZJ(1 Zetta Joules=1021 Joules)(updated IAP/CAS data);9±5 ZJ(NCEI/NOAA data).The Tropical Atlantic Ocean,the Mediterranean Sea,and southern oceans recorded their highest OHC observed since the *** with the onset of a strong El Niño,the global SST reached its record high in 2023 with an annual mean of~0.23℃ higher than 2022 and an astounding>0.3℃ above 2022 values for the second half of *** density stratification and spatial temperature inhomogeneity indexes reached their highest values in 2023.

关键词： ocean heat content salinity stratification global warming climate

Spatial distribution of Lead in the Surface Sediments of Salt River Estuary, Southwestern taiwan

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Spatial Distribution of Lead in the Surface Sediments of Sal...

china’s Recent Progresses in Polar Climate Change and Its Interactions with the Global Climate System

2012 International Conference on Earth Science and Remote Sensing(ESRS 2012)

作者： cheng-di dong chih-feng chen chiu-wen chen department of marine environmental engineering National Kaohsiung Marine University

This study was conducted using the data collected at the Salt River estuary to investigate and analyze lead（Pb） contained in the surface sediments, and to evaluate the accumulation of Pb and the degree of its potential risk. Results show that samples collected at all monitoring stations near the estuary of Salt River contain 47–242 mg/kg of Pb with an average of 114±71 mg/kg. The spatial distribution of Pb reveals that the Pb concentration is relatively high in the river mouth region, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor（EF） analysis imply that the sediments can be characterized as moderate to moderately severe degree of Pb enrichment. Results of geo-accumulation index（Igeo） analysis indicate that the sediments can be characterized as moderate to strong degree of Pb accumulation. Results of potential ecological risk index indicate that the sedimentation at Salt River mouth has the low to moderate ecological potential risk. The results can provide regulatory valuable information to be referenced for developing future strategies to renovate and manage river estuary and harbor.

关键词： Enrichment factor Geo-accumulation index Lead Sediment

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Advances in Atmospheric Sciences 2023年第8期40卷 1401-1428页

作者： Xichen LI Xianyao chen Bingyi WU Xiao cheng Minghu diNG Ruibo LEI di QI Qizhen SUN Xiaoyu WANG wenli ZHONG Lei ZHENG Meijiao XIN Xiaocen SHEN chentao SONG Yurong HOU Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China Frontier Science Center for Deep Ocean Multispheres and Earth System and Physical Oceanography Laboratory Ocean University of ChinaQingdao 266100China Qingdao national Laboratory for marine Science and Technology Qingdao 266061China department of Atmospheric and Oceanic Sciences/Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China CMA-FDU Joint Laboratory of marine Meteorology Shanghai 200438China School of Geospatial engineering and Science Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Sun Yat-sen UniversityZhuhai 519082China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Key Laboratory for Polar Science of the MNR Polar Research Institute of ChinaShanghai 200136China Polar and marine Research Institute Jimei UniversityXiamen 361021China Polar Research and Forecasting division National Marine Environmental Forecasting CenterBeijing 100081China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

During the recent four decades since 1980,a series of modern climate satellites were launched,allowing for the measurement and record-keeping of multiple climate parameters,especially over the polar regions where traditional observations are difficult to *** has been actively engaging in polar *** observations were conducted during this period,accompanied by improved Earth climate models,leading to a series of insightful understandings concerning Arctic and Antarctic climate ***,we review the recent progress china has made concerning Arctic and Antarctic climate change research over the past *** Arctic temperature increase is much higher than the global-mean warming rate,associated with a rapid decline in sea ice,a phenomenon called the Arctic *** Antarctic climate changes showed a zonally asymmetric pattern over the past four decades,with most of the fastest changes occurring over West Antarctica and the Antarctic *** Arctic and Antarctic climate changes were driven by anthropogenic greenhouse gas emissions and ozone loss,while tropical-polar teleconnections play important roles in driving the regional climate changes and extreme events over the polar *** climate changes may also feedback to the entire Earth climate *** adjustment of the circulation in both the troposphere and the stratosphere contributed to the interactions between the polar climate changes and lower *** change has also driven rapid Arctic and Southern ocean *** researchers have made a series of advances in understanding these processes,as reviewed in this paper.

关键词： polar climate change recent progress in china Arctic amplification tropical-polar interactions global sea level rise stratospheric circulation

Another Year of Record Heat for the Oceans

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Advances in Atmospheric Sciences 2023年第6期40卷 963-974页

作者： Lijing cheng John ABRAHAM Kevin ETRENBERTH John FASULLO Tim BOYER Michael EMANN Jiang ZHU Fan WANG Ricardo LOCARNINI Yuanlong LI Bin ZHANG Fujiang YU Liying WAN Xingrong chen Licheng feng Xiangzhou SONG Yulong LIU Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin chen Alexey MISHONOV Jim REAGAN Guancheng LI International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China university of St.Thomas School of EngineeringMinnesota 55105USA national Center for Atmospheric Research BoulderColorado 80307USA university of Auckland AucklandNew Zealand national Oceanic and Atmospheric Administration National Centers for Environmental InformationSilver SpringMaryland 20910USA department of Earth and environmental Science University of PennsylvaniaPhiladelphiaPennsylvania 19104USA Institute of Oceanology Chinese Academy of SciencesQingdao 266071China national marine environmental Forecasting Center Ministry of Natural Resources of ChinaBeijing 100081China College of Oceanography Hohai UniversityNanjing 210098China national marine Data and Information Service Tianjin 300171China Italian national Agency for New Technologies Energy and Sustainable Economic DevelopmentS.Teresa Research CenterLerici 19032Italy Istituto Nazionale di Geofisica e Vulcanologia Sede di BolognaBologna 40128Italy South china Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301China ESSIC/CISESS-MD University of MarylandCollege ParkMDCollege ParkMaryland 20740USA Eco-environmental Monitoring and Research Center Pearl River Valley and South China Sea Ecology and Environment AdministrationMinistry of Ecology and EnvironmentPRCGuangzhou 510611China

Changes in ocean heat content(OHC), salinity, and stratification provide critical indicators for changes in Earth’s energy and water cycles. These cycles have been profoundly altered due to the emission of greenhouse gasses and other anthropogenic substances by human activities, driving pervasive changes in Earth’s climate system. In 2022, the world’s oceans, as given by OHC, were again the hottest in the historical record and exceeded the previous 2021 record *** to IAP/CAS data, the 0–2000 m OHC in 2022 exceeded that of 2021 by 10.9 ± 8.3 ZJ(1 Zetta Joules = 1021Joules);and according to NCEI/NOAA data, by 9.1 ± 8.7 ZJ. Among seven regions, four basins(the North Pacific, North Atlantic, the Mediterranean Sea, and southern oceans) recorded their highest OHC since the 1950s. The salinity-contrast index, a quantification of the “salty gets saltier–fresh gets fresher” pattern, also reached its highest level on record in 2022,implying continued amplification of the global hydrological cycle. Regional OHC and salinity changes in 2022 were dominated by a strong La Ni?a event. Global upper-ocean stratification continued its increasing trend and was among the top seven in 2022.

关键词： ocean heat content salinity stratification global warming climate

Upper Ocean Temperatures Hit Record High in 2020

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Advances in Atmospheric Sciences 2021年第4期38卷 523-530页

作者： Lijing cheng John ABRAHAM Kevin ETRENBERTH John FASULLO Tim BOYER Ricardo LOCARNINI Bin ZHANG Fujiang YU Liying WAN Xingrong chen Xiangzhou SONG Yulong LIU Michael EMANN Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin chen Alexey MISHONOV Jim REAGAN Jiang ZHU International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China university of St.Thomas School of EngineeringMinnesota 55105USA national Center for Atmospheric Research BoulderColorado 80307USA national Oceanic and Atmospheric Administration National Centers for Environmental InformationSilver SpringMaryland 20910USA Institute of Oceanology Chinese Academy of SciencesQingdao 266071China national marine environmental Forecasting Center Ministry of Natural Resources of ChinaBeijing 100081China College of Oceanography Hohai UniversityNanjing 210098China national marine Data and Information Service Tianjin 300171China department of Meteorology&Atmospheric Science The Pennsylvania State UniversityUniversity ParkPennsylvania 16802USA Italian national Agency for New Technologies Energy and Sustainable Economic DevelopmentS.Teresa Research CenterLerici 19032Italy Istituto Nazionale di Geofisica e Vulcanologia Sede di BolognaBologna 40128Italy South china Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301China ESSIC/CISESS-MD University of MarylandCollege ParkMaryland 20742USA

The long-term warming of the ocean is a critical indicator of both the past and present state of the climate system. It also provides insights about the changes to come, owing to the persistence of both decadal variations and secular trends,which the ocean records extremely well(Hansen et al., 2011;IPCC, 2013;Rhein et al., 2013;Trenberth et al., 2016;Abram et al., 2019).

关键词： ocean Upper warming

Another Record: Ocean Warming Continues through 2021 despite La Nina Conditions

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Advances in Atmospheric Sciences 2022年第3期39卷 373-385页

作者： Lijing cheng John ABRAHAM Kevin ETRENBERTH John FASULLO Tim BOYER Michael EMANN Jiang ZHU Fan WANG Ricardo LOCARNINI Yuanlong LI Bin ZHANG Zhetao TAN Fujiang YU Liying WAN Xingrong chen Xiangzhou SONG Yulong LIU Franco RESEGHETTI Simona SIMONCELLI Viktor GOURETSKI Gengxin chen Alexey MISHONOV Jim REAGAN International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China university of St.Thomas School of EngineeringMinnesota 55105USA national Center for Atmospheric Research BoulderColorado 80307USA national Oceanic and Atmospheric Administration National Centers for Environmental InformationSilver SpringMaryland 20910USA department of Meteorology&Atmospheric Science The Pennsylvania State UniversityUniversity ParkPennsylvania 16802USA Institute of Oceanology Chinese Academy of SciencesQingdao 266071China national marine environmental Forecasting Center Ministry of Natural Resources of ChinaBeijing 100081China College of Oceanography Hohai UniversityNanjing 210098China national marine Data and Information Service Tianjin 300171China Italian national Agency for New Technologies Energy and Sustainable Economic DevelopmentS.Teresa Research CenterLerici 19032Italy Istituto Nazionale di Geofisica e Vulcanologia Sede di BolognaBologna 40128Italy South china Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301China ESSIC/CISESS-MD University of MarylandCollege ParkMD 20742USA

The increased concentration of greenhouse gases in the atmosphere from human activities traps heat within the climate system and increases ocean heat content(OHC). Here, we provide the first analysis of recent OHC changes through 2021 from two international groups. The world ocean, in 2021, was the hottest ever recorded by humans, and the 2021 annual OHC value is even higher than last year’s record value by 14 ± 11 ZJ(1 zetta J = 1021 J) using the IAP/CAS dataset and by16 ± 10 ZJ using NCEI/NOAA dataset. The long-term ocean warming is larger in the Atlantic and Southern Oceans than in other regions and is mainly attributed, via climate model simulations, to an increase in anthropogenic greenhouse gas concentrations. The year-to-year variation of OHC is primarily tied to the El Nino-Southern Oscillation(ENSO). In the seven maritime domains of the Indian, Tropical Atlantic, North Atlantic, Northwest Pacific, North Pacific, Southern oceans,and the Mediterranean Sea, robust warming is observed but with distinct inter-annual to decadal variability. Four out of seven domains showed record-high heat content in 2021. The anomalous global and regional ocean warming established in this study should be incorporated into climate risk assessments, adaptation, and mitigation.

关键词： La Nina ocean heat ocean warming attribution observation