{"id":"e97f8e59-f4a5-4447-aeb6-345a27735327","title":"青藏高原中部湖泊江错沉积物纹层年代、厚度及重建降水（公元81-2015年）","title_en":"Chronology, thickness and reconstructed precipitation of varves in Jiangco, central Tibet Plateau (81-2015 A.D.)","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"文件命名：数据以表格xls格式储存，命名为“Jiangco varve chronology thickness and precipitation.xls”。其中包含6个字段，分别为Number of layers（层数）、Age（年代）、Coarse-gained layer thickness（粗颗粒层厚度）、Fine-gained layer thickness（细颗粒层厚度）、Total varve thickness（总纹层厚度）和Coarse%（粗颗粒厚度百分比）。\n数据读取方式：可用Microsoft Office中的Excel软件进行查看和编辑。","description":"湖泊沉积物是重建过去气候变化的重要代用材料，其中沉积物的年代框架是基础。纹层是湖泊沉积物中成对形成的一种沉积层，通常一年为一个周期。依托中国科学院A类战略性先导科技专项“泛第三极环境变化与绿色丝绸之路建设”和第二次青藏高原综合科学考察研究等研究计划，作者在青藏高原中部湖泊江错获取了长达1米的沉积物重力钻岩芯，发现保存完好的纹层。随后制作了岩芯薄片并对纹层及其厚度进行计数和测量，得到了从公元81年到2015年的年代序列。利用纹层厚度中粗颗粒层厚度百分比这一代表降水的指标重建了过去2000年这一地区的降水。高分辨率高精度的年代和降水记录可以提供可靠的气候环境变化的背景，对古气候模拟和古文明的兴衰等提供参考。","doi":"10.11888/Paleoenv.tpdc.270739","projection":"","language":"zh","share_type":"protected","east":90.86,"west":90.77,"south":31.51,"north":31.59,"scale":null,"crs":null,"filesize":0.25,"share_policy":"a","ts_created":"2020-08-04T07:01:03.881531+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-19T23:11:20.775682+08:00","time_description":"81-2015","datas_group":3,"time_description_en":"81-2015","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"李育","username":"李育","email":"liyu@lzu.edu.cn","is_cancel_expert":false}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"-","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6,21],"subtopics":{"metadata":"e97f8e59-f4a5-4447-aeb6-345a27735327","three_pole":null,"third_pole":"XDA2009000004"},"username":"XDA2009000004","review_time":null,"protected_duration":6,"protected_describe":"文章未发表","is_important":false,"hit_count":2988}