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The 2.2. report of synergetic roadmap on carbon neutrality and clean air for China:Accelerating transition in key sectors

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Environmental Science and Ecotechnology 2024年第3期19卷 4-18页

作者： Yu Lei Zhicong Yin Xi Lu Qiang zhang Jicheng gong Bofeng Cai Cilan Cai Qimin Chai Huopo Chen Renjie Chen Shi Chen Wenhui Chen Jing Cheng Xiyuan Chi Hancheng Dai Xiangzhao Feng Guannan Geng Jianlin Hu Shan Hu Cunrui Huang Tiantian Li {2. Li Xiaomei Li Jun Liu Xin Liu Zhu Liu Jinghui Ma Yue Qin Dan Tong Xuhui Wang Xuying Wang Rui Wu Qingyang Xiao Yang Xie Xiaolong Xu Tao Xue Haipeng Yu Da zhang Ning zhang Shaohui zhang Shaojun zhang Xian zhang Xin zhang Zengkai zhang Bo Zheng Yixuan Zheng Jian Zhou Tong Zhu Jinnan Wang Kebin He Center of Air Quality Simulation and System Analysis Chinese Academy of Environmental PlanningBeijing100041China Center for Carbon Neutrality Chinese Academy of Environmental PlanningBeijing100041China Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment Change(ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)Nanjing University of Information Science&TechnologyNanjing210044China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing100084China Institute for Carbon Neutrality Tsinghua UniversityBeijing100084China Ministry of Education Key Laboratory for Earth System Modelling Department of Earth System ScienceTsinghua UniversityBeijing100084China State Key Joint Laboratory for Environment Simulation and Pollution Control College of Environmental Sciences and Engineering and Center for Environment and HealthPeking UniversityBeijing100871China National Center for Climate Change Strategy and International CooperationBeijing100035China Nansen-Zhu International Research Centre Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China school of Public Health Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of HealthFudan UniversityShanghai200032China school of Economics and Management Beijing University of Chemical TechnologyBeijing100029China Department of Earth System Science University of CaliforniaIrvineCA92697USA National Meteorological Center China Meteorological AdministrationBeijing100081China College of Environmental Sciences and Engineering Peking UniversityBeijing100871China Policy Research Center for Environment and Economy Ministry of Ecology and Environment of the People's Republic of ChinaBeijing100029China Jiangsu Key Laboratory of Atmospheric Environment Monitoring

China is now confronting the intertwined challenges of air pollution and climate *** the high synergies between air pollution abatement and climate change mitigation,the chinese government is actively promoting synergetic control of these two *** Synergetic Roadmap project was launched in 2.2. to track and analyze the progress of synergetic control in China by developing and monitoring key *** Synergetic Roadmap 2.2. report is the first annual update,featuring 2. indicators across five aspects:synergetic governance system and practices,progress in structural transition,air pollution and associated weather-climate interactions,sources,sinks,and mitigation pathway of atmospheric composition,and health impacts and benefits of coordinated *** to the comprehensive review presented in the 2.2. report,the Synergetic Roadmap 2.2. report places particular emphasis on progress in 2.2. with highlights on actions in key sectors and the relevant *** milestones include the proportion of non-fossil power generation capacity surpassing coal-fired capacity for the first time,a decline in the production of crude steel and cement after years of growth,and the surging penetration of electric ***,in 2.2.,China issued the first national policy that synergizes abatements of pollution and carbon emissions,marking a new era for China's pollution-carbon *** changes highlight China's efforts to reshape its energy,economic,and transportation structures to meet the demand for synergetic control and sustainable ***,the country has witnessed a slowdown in carbon emission growth,improved air quality,and increased health benefits in recent years.

关键词： Synergetic roadmap Carbon neutrality Clean air

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基于时序InSAR技术的辽河三角洲油田地面沉降监测与建模

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武汉大学学报（信息科学版） 2024年第8期49卷 1422-1433,1443页

作者：龚志强唐伟蒋金豹李辉张鑫耿旭卫星中国矿业大学(北京)地球科学与测绘工程学院北京100083 辽宁省化工地质勘查院有限责任公司辽宁锦州121007 沈阳市勘察测绘研究院有限公司辽宁沈阳110004

辽河三角洲油田的持续性开采导致严重地表沉降,影响石油采收率和油田生产作业,对地表基础设施乃至生态环境也构成威胁。为保证该区域石油等地下流体资源的安全开采和区域生态环境保护,通过将相干性信息作为权重融入小基线集合成孔径雷... 详细信息

辽河三角洲油田的持续性开采导致严重地表沉降,影响石油采收率和油田生产作业,对地表基础设施乃至生态环境也构成威胁。为保证该区域石油等地下流体资源的安全开采和区域生态环境保护,通过将相干性信息作为权重融入小基线集合成孔径雷达干涉测量(interferometric synthetic aperture radar,InSAR)技术中,获取辽河三角洲地区2.17-2.2.年地表形变信息。采用升降轨数据融合分解方法,提取曙光油田区域的垂直及水平东西向形变,并对曙光采油厂储层压实引起的地面沉降进行储层压实与沉降模型反演。结果显示:(1)辽河三角洲区域内存在多处地面沉降,曙光采油厂和欢喜岭采油厂沉降最为明显,视线向平均沉降速率分别达到158 mm/a和73.mm/a;(2.曙光油田呈现出向油田沉降漏斗中心水平移动的规律,且东西两侧移动速率量级基本一致,最大水平移动速率达到-62.mm/a(朝西运动);(3.基于曙光油田储层参数构建的储层压实与沉降模型能较好地对油田沉降中心最大沉降量位置进行反演,且沉降范围和量级与InSAR观测结果较为一致。

关键词： InSAR 辽河三角洲地表沉降反演

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A Localization Method of High Energy Transients for All-sky Gamma-ray Monitor

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Research in Astronomy and Astrophysics 2024年第10期24卷 25-35页

作者： Yi Zhao Wangchen Xue Shaolin Xiong Qi Luo Yuanhao Wang Jiacong Liu Heng Yu Xiaoyun Zhao Yue Huang Jinyuan Liao Jianchao Sun Xiaobo Li Qibin Yi Ce Cai Shuo Xiao Shenglun Xie Chao Zheng Yanqiu zhang Chenwei Wang Wenjun Tan Zhiwei Guo Chaoyang Li Zhenghua An Gang Chen Yanqi Du Min Gao Ke {3. Dongya Guo Jiang He Jianjian He Bing Li Gang Li Xinqiao Li Jing Liang Xiaohua Liang Yaqing Liu Xiang Ma Rui Qiao Liming Song Xinying Song Xilei Sun Jin Wang Ping Wang Xiangyang Wen Hong Wu Yanbing Xu Sheng Yang Dali zhang Fan zhang Hongmei zhang Peng zhang Shu zhang Zhen zhang Shijie Zheng Keke zhang Xingbo Han Haiyan Wu Hu Tai Hao Geng Gaopeng Lu wei Xu Fanchao Lyu Hongbo zhang Fangjun Lu Shuangnan zhang Department of Astronomy Beijing Normal UniversityBeijing 100875China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese Academy of Sciences Beijing 100049China school of Physics and Optoelectronics Xiangtan UniversityXiangtan 411105China College of Physics Hebei Normal UniversityShijiazhuang 050024China Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing Guizhou Normal UniversityGuiyang 550001China school of Physics and Electronic Science Guizhou Normal UniversityGuiyang 550001China Institute of Astrophysics Central China Normal UniversityWuhan 430079China College of physics Sciences Technology Hebei UniversityBaoding 071002China Physics and Space Science College China West Normal UniversityNanchong 637002China school of Computing and Artificial Intelligence Southwest Jiaotong UniversityChengdu 611756China College of Electronic and information Engineering Tongji UniversityShanghai 201804China Innovation Academy for Microsatellites of chinese Academy of Sciences Shanghai 201304China National Space Science Center Chinese Academy of SciencesBeijing 100190China school of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Electronic Information school Wuhan UniversityWuhan 430072China Key Laboratory of Transportation Meteorology of China Meteorological Administration Nanjing Joint Institute for Atmospheric SciencesNanjing 210000China Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

Fast and reliable localization of high-energy transients is crucial for characterizing the burst properties and guiding the follow-up *** based on the relative counts of different detectors has been widely used for all-sky gamma-ray *** are two major methods for this count distribution localization:χ^(2.minimization method and the Bayesian *** we propose a modified Bayesian method that could take advantage of both the accuracy of the Bayesian method and the simplicity of the χ^(2.*** comprehensive simulations,we find that our Bayesian method with Poisson likelihood is generally more applicable for various bursts than the χ^(2.method,especially for weak *** further proposed a location-spectrum iteration approach based on the Bayesian inference,which could alleviate the problems caused by the spectral difference between the burst and location *** method is very suitable for scenarios with limited computation resources or timesensitive applications,such as in-flight localization software,and low-latency localization for rapidly follow-up observations.

关键词： methods:data analysis methods:analytical (stars:)gamma-ray burst:general

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Updated overall survival and circulating tumor DNA analysis of ensartinib for crizotinib-refractory ALK-positive NSCLC from a phase II study

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Cancer Communications 2024年第4期44卷 455-468页

作者： Jing Zheng Tao Wang Yunpeng Yang Jie Huang Jifeng Feng Wu Zhuang Jianhua Chen Jun Zhao wei Zhong Yanqiu Zhao Yiping zhang Yong Song Yi Hu Zhuang Yu Youling {2. Yuan Chen Feng Ye Shucai zhang Lejie Cao Yun Fan Gang Wu Yubiao Guo Chengzhi Zhou Kewei Ma Jian Fang weineng Feng Yunpeng Liu Zhendong Zheng Gaofeng Li Huijie Wang Shundong Cang Ning Wu wei Song Xiaoqing Liu Shijun Zhao Lieming Ding Giovanni Selvaggi Yang Wang Shanshan Xiao Qian Wang Zhilin Shen Jianya Zhou Jianying Zhou Li zhang Department of Respiratory Disease Thoracic Disease CenterThe First Affiliated HospitalCollege of MedicineZhejiang UniversityZhejiang Provincial Clinical Research Center for Respiratory DiseaseHangzhouZhejiangP.R.China Hangzhou Repugene Technology Co. LtdHangzhouZhejiangP.R.China Department of Medical Oncology Sun Yat-sen University Cancer Cen-terState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China Department of Medical Oncology Jiangsu Cancer HospitalJiangsu Institute of Cancer ResearchThe Affiliated Cancer Hospital of Nanjing Medical UniversityNanjingJiangsuP.R.China Department of Thoracic Oncology Fujian Provincial Cancer HospitalFujian Medical University Cancer HospitalFuzhouFujianP.R.China Department of Medical Oncology-Chest Hunan Cancer HospitalChangshaHunanP.R.China Department of Thoracic Oncology Beijing Cancer HospitalBeijingP.R.China Department of Pulmonary Medicine Peking Union Medical College HospitalChinese Academy of Medical SciencesPeking Union Medical CollegeBeijingP.R.China Respiratory Department of Internal Medicine Henan Provincial Can-cer HospitalAffiliated Cancer Hospital of Zhengzhou UniversityZhengzhouHenanP.R.China Thoracic Medical Oncology Zhejiang Cancer HospitalHangzhouZhejiangP.R.China Division of Respiratory Medicine Jinling HospitalNanjing University School of MedicineNanjingJiangsuP.R.China Department of Oncology Chinese People’s Liberation Army(PLA)General HospitalBeijingP.R.China Department of Oncology The Affiliated Hospital of Qingdao UniversityQingdaoShandongP.R.China Department of Thoracic Oncology Cancer CenterWest China HospitalSichuan UniversityChengduSichuanP.R.China Department of Oncology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP.R.China Department of Medical Oncology Cancer HospitalThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityTeaching Hospital of

Background:The initial phase II stuty(NCT03.0}5693.demonstrated that ensartinib has shown clinical activity in patients with advanced crizotinib-refractory,anaplastic lymphoma kinase(ALK)-positive non-small cell lung cancer(NSCLC).Herein,we reported the updated data on overall survival(OS)and molecular profiling from the initial phase Ⅱ ***:In this study,180 patients received 2.5 mg of ensartinib orally once daily until disease progression,death or *** was estimated by Kaplan‒Meier methods with two-sided 95%confidence intervals(CIs).Next-generation sequencing was employed to explore prognostic biomarkers based on plasma samples collected at baseline and after initiating *** tumor DNA(ctDNA)was detected to dynamically monitor the genomic alterna-tions during treatment and indicate the existence of molecular residual disease,facilitating improvement of clinical ***:At the data cut-off date(August 3.,2.2.),with a median follow-up time of 53.2.months,97 of 180(53.9%)patients had *** median OS was 42.8 months(95%CI:2..3.53.2.months).A total of 3.3.plasma samples from 168 patients were included for ctDNA *** inferior OS correlated sig-nificantly with baseline ALK or tumor protein 53.TP53.*** addition,patients with concurrent TP53.mutations had shorter OS than those without con-current TP53.*** ctDNA levels evaluated by variant allele frequency(VAF)and haploid genome equivalents per milliliter of plasma(hGE/mL)at baseline were associated with poor ***,patients with ctDNA clear-ance at 6 weeks and slow ascent growth had dramatically longer OS than those with ctDNA residual and fast ascent growth,***,patients who had a lower tumor burden,as evaluated by the diameter of target lesions,had a longer *** Cox regression analysis further uncovered the independent prognostic values of bone metastases,higher hGE,and elevated ALK mutation abundance at 6 we

关键词： anaplastic lymphoma kinase ctDNA ensartinib non-small cell lung cancer overall survival

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考虑源-荷不确定性的矿山综合能源系统多时间尺度区间优化调度

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控制与决策 2024年第3期39卷 827-835页

作者：胡荷娟孙晓燕曾博巩敦卫张勇中国矿业大学信息与控制工程学院江苏徐州221000 华北电力大学新能源电力系统国家重点实验室北京102206

在高能耗矿山综合能源系统中,为减小乏风、瓦斯、矿井涌水等伴生能源、可再生能源、负荷不确定预测误差对系统的影响,提出考虑源-荷预测不确定性的矿山综合能源系统多时间尺度区间优化调度策略.首先,构建含可再生能源、矿山伴生能源、... 详细信息

在高能耗矿山综合能源系统中,为减小乏风、瓦斯、矿井涌水等伴生能源、可再生能源、负荷不确定预测误差对系统的影响,提出考虑源-荷预测不确定性的矿山综合能源系统多时间尺度区间优化调度策略.首先,构建含可再生能源、矿山伴生能源、光热电站的矿山综合能源系统架构;其次,根据电-热响应特性和源-荷不确定性在时间上的差异,建立日前-日内-实时多时间尺度区间优化调度模型.在日前和日内优化阶段,利用区间数描述源-荷不确定性,并通过区间优化方法对伴生能源和可再生能源的实际消纳区间进行优化;日内优化在日前优化的基础上,综合考虑建筑用户热舒适度的模糊性、供热系统的热惯性及热水负荷需求响应调整各设备出力;在实时优化阶段,考虑电负荷需求响应对日内电力设备出力进行修正.最后,通过算例分析验证所提模型和方法的可行性.

关键词：矿山综合能源系统预测不确定性区间优化调度多时间尺度负荷需求响应

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厌氧段光照策略对A/O模式下菌藻共生系统性能的影响

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中国环境科学 2024年第8期44卷 4336-4346页

作者：李冬公为敏李帅柴晨旭张杰北京工业大学水质科学与水环境恢复工程北京市重点实验室北京100124 哈尔滨工业大学城市水资源与水环境国家重点实验室黑龙江哈尔滨150090

设置4组以厌氧/好氧(A/O)模式运行的序批式反应器(SBR),其中R1厌氧段为8000lx的光照;R^(2.、R3.R4将厌氧段划分为A1和A_(2.,A1段无光照,A_(2.段的光强分别为0、3.00和5000lx,探究不同厌氧段光照策略对菌藻共生系统性能的影响.研究结果... 详细信息

设置4组以厌氧/好氧(A/O)模式运行的序批式反应器(SBR),其中R1厌氧段为8000lx的光照;R^(2.、R3.R4将厌氧段划分为A1和A_(2.,A1段无光照,A_(2.段的光强分别为0、3.00和5000lx,探究不同厌氧段光照策略对菌藻共生系统性能的影响.研究结果显示,在厌氧后期添加弱光照的R3.R4中可以快速富集微藻,这使其形成的菌藻共生颗粒结构致密,沉降性能良好,碳氮磷去除效果更佳,并且分泌出更多的胞外聚合物(EPS).其中R3.磷效果最好,总磷(TP)去除率达到95.87%.典型周期分析可知,弱光条件下厌氧末期的释磷量与叶绿素a(Chl-a)含量成正比,R3.厌氧释磷能力最强,其厌氧末磷浓度达到43.73.g/L,在A_(2.段形成的高磷环境能够刺激微藻生长,其Chl-a含量在运行后期达到6.13.g/gVSS.高通量测序显示,R3.原核生物中成功富集了以Candidatus_Accumulibacter为核心的聚磷菌(PAOs),丰度达到11.18%;真核生物中微藻的总丰度达到84.2.%,其中Halochlorella丰度高达42.85%,说明在厌氧后期的高磷环境中添加弱光照(3.00lx)能够在不影响PAOs生长的条件下同步富集微藻,形成了以微藻和PAOs为核心的共生颗粒,为污水深度处理提供技术支持.

关键词：菌藻共生颗粒污泥光照策略聚磷菌高通量测序

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面向GPU并行编程的线程同步综述

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软件学报 2024年第2期35卷 1028-1047页

作者：高岚赵雨晨张伟功王晶钱德沛首都师范大学信息工程学院北京100048 中国人民大学信息学院北京100872 北京航空航天大学计算机学院北京100191

并行计算已成为主流趋势.在并行计算系统中,同步是关键设计之一,对硬件性能的充分利用至关重要.近年来,GPU(graphic processing unit,图形处理器)作为应用最为广加速器得到了快速发展,众多应用也对GPU线程同步提出更高要求.然而,现有GP... 详细信息

并行计算已成为主流趋势.在并行计算系统中,同步是关键设计之一,对硬件性能的充分利用至关重要.近年来,GPU(graphic processing unit,图形处理器)作为应用最为广加速器得到了快速发展,众多应用也对GPU线程同步提出更高要求.然而,现有GPU系统却难以高效地支持真实应用中复杂的线程同步.研究者虽然提出了很多支持GPU线程同步的方法并取得了较大进展,但GPU独特的体系结构及并行模式导致GPU线程同步的研究仍然面临很多挑战.根据不同的线程同步目的和粒度对GPU并行编程中的线程同步进行分类.在此基础上,围绕GPU线程同步的表达和执行,首先分析总结GPU线程同步存在的难以高效表达、错误频发、执行效率低的关键问题及挑战;而后依据不同的GPU线程同步粒度,从线程同步表达方法和性能优化方法两个方面入手,介绍近年来学术界和产业界对GPU线程竞争同步及合作同步的研究,对现有研究方法进行分析与总结.最后,指出GPU线程同步未来的研究趋势和发展前景,并给出可能的研究思路,从而为该领域的研究人员提供参考.

关键词：通用图形处理器(GPGPU) 并行编程线程同步性能优化

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考虑薄煤层影响的致密砂岩气藏地质工程双甜点评价方法——以鄂尔多斯盆地神府区块为例

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天然气工业 2024年第10期44卷 170-181页

作者：张兵周展米洪刚朱海燕张兆鹏魏超徐伟龚丁王泽宇贺甲元中联煤层气有限责任公司北京市033000 成都理工大学能源学院(页岩气现代产业学院) 四川省成都市610059 中海艾普油气测试(天津)有限公司西南石油大学石油与天然气工程学院中国石化石油勘探开发研究院

在薄煤层发育的致密砂岩气藏,由于薄煤层割理发育且塑性较强,容易限制水力压裂裂缝的缝高扩展,进而导致遴选的地质、工程双甜点区域的实际产能无法达到预期效果。为获得更加准确的双甜点评价结果,以鄂尔多斯盆地神府南区致密砂岩气藏为... 详细信息

在薄煤层发育的致密砂岩气藏,由于薄煤层割理发育且塑性较强,容易限制水力压裂裂缝的缝高扩展,进而导致遴选的地质、工程双甜点区域的实际产能无法达到预期效果。为获得更加准确的双甜点评价结果,以鄂尔多斯盆地神府南区致密砂岩气藏为研究对象,首先构建了多属性融合的地质、工程双甜点评价模型,然后开展了双甜点三维分布的初次预测,进而采用Abaqus软件分析了煤层厚度、起裂点距煤层垂直距离对水力压裂裂缝穿煤层扩展的影响规律,最后形成了穿煤层双甜点二次优选评价技术。研究结果表明:①当煤层厚度大于等于4 m或起裂点距煤层垂直距离大于等于4 m时,水力压裂裂缝难以纵向穿过煤层扩展,可压性降低;②研究区双甜点指数划分标准为,Ⅰ类双甜点≥0.46,0.3.≤Ⅱ类双甜点3.≤Ⅲ类双甜点3.。结论认为:①考虑薄煤层影响的致密砂岩气二次甜点评价技术能够准确筛选出优质的地质、工程双甜点,且优选结果与实际高产区域的匹配度较高;②建立的评价方法对于砂泥岩互层非常规储层的开发和多气合采中甜点的同步动用具有较好的理论与实际意义。

关键词：神府区块致密砂岩气薄煤层地质工程双甜点裂缝扩展

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异构集成代理辅助的区间多模态粒子群优化算法

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自动化学报 2024年第9期50卷 1831-1853页

作者：季新芳张勇巩敦卫郭一楠孙晓燕中国矿业大学信息与控制工程学院徐州221116 中国矿业大学机械电子与信息工程学院(北京) 北京100083

现实生活中的很多黑盒优化问题可归为高计算代价的多模态优化问题(Multimodal optimization problem,MMOP),即昂贵多模态优化问题(Expensive MMOP,EMMOP).在处理该类问题时,决策者希望以尽量少的计算代价(即尽量少的真实函数评价次数)... 详细信息

现实生活中的很多黑盒优化问题可归为高计算代价的多模态优化问题(Multimodal optimization problem,MMOP),即昂贵多模态优化问题(Expensive MMOP,EMMOP).在处理该类问题时,决策者希望以尽量少的计算代价(即尽量少的真实函数评价次数)找到多个高质量的最优解.然而,已有代理辅助的进化优化算法(Surrogate-assisted evolutionary algorithm,SAEA)很少考虑问题的多模态属性,运行一次仅可获得问题的一个最优解.鉴于此,研究一种异构集成代理辅助的区间多模态粒子群优化(Interval multimodal particle swarm optimization algorithm assisted by heterogeneous ensemble surrogate,IMPSO-HES)算法.首先,借助异构集成的思想构建一个由多个基础代理模型组成的模型池;随后,依据待评价粒子与已发现模态之间的匹配关系,从模型池中自主选择部分基础代理模型进行集成,并使用集成后的代理模型预测该粒子的适应值.进一步,为节约代理模型管理的代价,设计一种增量式的代理模型管理策略;为减少代理模型预测误差对算法性能的影响,首次将区间排序关系引入到进化过程中.将所提算法与当前流行的5种代理辅助进化优化算法和7种最先进的多模态优化算法进行对比,在2.个测试函数和1个建筑节能实际问题上的实验结果表明,所提算法可以在较少计算代价下获得问题的多个高竞争最优解.

关键词：粒子群优化多模态优化高昂计算代价代理辅助

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Exploring Antarctic subglacial lakes with RECoverable Autonomous Sonde(RECAS):Design and first field tests

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Science China(Technological Sciences) 2024年第6期67卷 1866-1878页

作者： SUN YouHong PAVEL Talalay LI YuanSheng YU HaiBin WANG DongLiang LI GuoPing XU LiPing gong Da WANG JiXin WANG JianHua WANG Ting zhang Nan WANG ZhiGang CHEN YanJi LIU YunChen LI YaZhou PENG ShiLin SHI JianGuang AN ChunLei GE Qun XU Jing NI XiaoKang CUI QiFeng JIANG Qiang MIKHAIL Sysoev Yang Yang WANG RuSheng {2. XianZhe WANG Yu ZHU TianXin DENG ZhiPeng ALEXEY Markov LI Bing FAN XiaoPeng Polar Research Center Jilin UniversityChangchun130000China school of Engineering and Technology China University of GeosciencesBeijing100083China Polar Research Institute of China Shanghai200120China College of Electronics and Information Hangzhou Dianzi UniversityHangzhou310018China Aerospace System Engineering Shanghai Shanghai201109China Nanjing Institute of Astronomical Optics&Technology National Astronomical ObservatoriesChinese Academy of SciencesNanjing210000China National Ocean Technology Center Tianjin300000China

Conducting scientific drilling on subglacial lakes and obtaining samples of subglacial lake water holds great significance in unraveling the formation and evolution of Antarctic subglacial lakes and early Earth's life *** various approaches to access and directly sample subglacial water and sediments,clean access and exploration of subglacial lakes remain *** address this concern,Jilin University has developed the RECoverable Autonomous Sonde(RECAS)*** technology enables sampling and in-situ detection of subglacial lake water while being isolated from the surface,thus minimizing the risk of *** tests,including downward and upward drilling,long-running,remote-control,and cold-environment assessments,were conducted to validate the sonde's principle and *** the 3.th chinese National Antarctic Research Expedition,CHINARE(2.2.–2.2. season),the RECAS prototype underwent testing on the flank region of Dalk glacier,10 km from Zhongshan Station in *** boreholes with depths of 2.0.3.183.2.and 13..5 m were successfully drilled,with the refrozen meltwater sealing the boreholes during the *** 600 mL of melted water samples were collected from each *** the drilling tests,all systems of the RECAS prototype performed within the expected ranges.

关键词： subglacial lake thermal drilling water sampling Antarctic autonomous sonde

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