本数据集包括1994—2014我国瓦里关全球大气本底观象台甲烷浓度日均值观测数据，主要包括年甲烷日数据；中国瓦里关大气本底基准观象台始建于1994年，位于青藏高原，海拔3810米，是全球最高的大气本底基准监测站，也是世界上第一个设在大陆腹地的大气本底基准监测站，它的建立填补了全球大气监测网(GAW)在欧亚大陆内的空白。
", "ds_source": "瓦里关大气本底基准观象台由中国政府和全球环境基金联合投资建设，并由中国气象局负责运行管理。以温室气体和大气臭氧监测为主的综合大气本底基准监测。", "ds_process_way": "
原始数据，未经加工处理。
", "ds_quality": "人工审核
", "ds_acq_start_time": "1994-01-01 00:00:00", "ds_acq_end_time": "2014-12-31 00:00:00", "ds_acq_place": "中国青藏高原瓦里关大气本底基准观象台", "ds_acq_lon_east": 100.91972222222223, "ds_acq_lat_south": 36.25, "ds_acq_lon_west": 100.84972222222221, "ds_acq_lat_north": 36.349722222222226, "ds_acq_alt_low": 3816.0, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 190117, "ds_files_count": 2, "ds_format": "Excel表格", "ds_space_res": "", "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "fb50ffca-0d1c-11e6-af40-5cc5d45ad3ae.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": "瓦里关大气成分本底观测站", "organization_id": "9f64cd38-43f0-44f5-98ed-babecf7ca11a", "ds_serv_man": "张晓春", "ds_serv_phone": "010-58995267", "ds_serv_mail": "xczhang@camscma.cn", "doi_value": "", "subject_codes": [ "170.1515" ], "quality_level": 3, "publish_time": "2020-12-16 20:39:59", "last_updated": "2026-03-30 14:38:04", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.CGAWBO.2020.18", "i18n": { "en": { "title": "Daily Average Value of Methane Concentration in Waliguan, Qinghai, 1994-2014", "ds_format": "Excel", "ds_source": "The Waliguan Atmospheric Background Reference Observatory is jointly invested and constructed by the Chinese government and the Global Environment Facility, and is operated and managed by the China Meteorological Administration. Comprehensive atmospheric background baseline monitoring mainly focused on greenhouse gas and atmospheric ozone monitoring.", "ds_quality": "
Manual audit
", "ds_ref_way": "", "ds_abstract": "This dataset includes daily mean methane concentration observation data from the Global Atmospheric Background Observatory in Waliguan, China from 1994 to 2014, mainly including annual methane daily data; The Valiguan Atmospheric Background Reference Observatory in China was founded in 1994 and is located on the Qinghai Tibet Plateau at an altitude of 3810 meters. It is the highest atmospheric background reference monitoring station in the world and the first atmospheric background reference monitoring station located in the hinterland of a continent. Its establishment fills the gap of the Global Atmospheric Monitoring Network (GAW) in the Eurasian continent
", "ds_time_res": "日", "ds_acq_place": "Atmospheric background reference observatory at Waliguan, Qinghai Tibet Plateau, China", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Raw data, unprocessed.
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "甲烷", "温室气体", "日均值" ], "ds_subject_tags": [ "大气化学" ], "ds_class_tags": [], "ds_locus_tags": [ "青藏高原", "瓦里关", "青海省" ], "ds_time_tags": [ 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 ], "ds_contributors": [ { "true_name": "张晓春", "email": "xczhang@camscma.cn", "work_for": "北京", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "张晓春", "email": "xczhang@camscma.cn", "work_for": "北京", "country": "中国" } ], "ds_managers": [ { "true_name": "张晓春", "email": "xczhang@camscma.cn", "work_for": "北京", "country": "中国" } ], "category": "大气本底" }