本数据集针对天山乌鲁木齐河源1号冰川，数据集包括平衡年、物质平衡。数据集包含6条记录。利用花杆观测法。在每年冰川消融末期，用卷尺测量不同位置的花杆在观测时的出露高度值，结合雪坑剖面，计算冰川消融量和积累量，得出每个平衡年物质净平衡，其单位为毫米水当量（mm w.e.）。在观测期间，有部分花杆倾倒或被雪覆盖，无法获取有效数据，对该物质平衡年的计算结果有一定影响。采用协议共享。数据集包含平衡年（单位：年）、物质平衡量（单位：毫米水当量（mm w.e.））2个字段。数据集逐年实测资料，时间为2012年8月-2017年8月。物质平衡量计算结果精度控制在5毫米水当量（mm w.e.）以内。
", "ds_source": "自主产生。
", "ds_process_way": "利用花杆观测法。在每年冰川消融末期，用卷尺测量不同位置的花杆在观测时的出露高度值，结合雪坑剖面，计算冰川消融量和积累量，得出每个平衡年物质净平衡，其单位为毫米水当量（mm w.e.）。在观测期间，有部分花杆倾倒或被雪覆盖，无法获取有效数据，对该物质平衡年的计算结果有一定影响。测量和计算过程规范化和标准化，并严格复核。
", "ds_quality": "采用花杆观测法。在乌鲁木齐河源1号冰川海拔3750-4100之间布设花杆43支。在冰川消融末期，用卷尺测量不同位置的花杆在观测时的出露高度值，以及测杆的高度、附加冰厚度、积雪剖面和污化层深度等，先计算每支花杆处消融量积累量，再用等高线法求出整条冰川的消融积累量。
", "ds_acq_start_time": "2012-08-01 00:00:00", "ds_acq_end_time": "2017-08-31 00:00:00", "ds_acq_place": "天山乌鲁木齐河源1号冰川", "ds_acq_lon_east": 86.75, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": 43.11666666666667, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 32396, "ds_files_count": 3, "ds_format": "EXCEL", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "4756d102-9182-4641-9403-89204ceb770d.png", "ds_thumb_from": 2, "ds_ref_way": "李忠勤，王文彬，王璞玉， 等. 中科院寒区旱区环境与工程研究所. 2012-2017年天山乌鲁木齐河源1号冰川年物质平衡数据集. 2019。李真, 王文兵, 李忠勤，2012-2017年天山乌鲁木齐河源1号冰川年物质平衡数据集，国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2019，doi：10.12072/DIMaC.0019.2020.db", "paper_ref_way": "", "ds_ref_instruction": "2012-2017年天山乌鲁木齐河源1号冰川年物质平衡数据集来源于科技基础性工作专项“中国西部主要冰川作用中心冰量变化调查（2013FY111400）”。数据产权属于中科院寒区旱区环境与工程研究所。", "ds_from_station": "中国西部主要冰川作用中心冰量变化调查", "organization_id": "75b2f6d5-c7ed-438c-b7be-98672c057ed5", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "lihongxing@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2020-12-23 15:02:49", "last_updated": "2023-05-16 17:34:58", "protected": false, "protected_to": "2022-12-06 00:00:00", "lang": "zh", "cstr": "11738.11.ncdc.DIMaC.2020.85", "license": null, "i18n": { "en": { "title": "Annual mass balance data set of Urumqi Glacier No.1 of Tianshan Mountains area from 2012 to 2017", "ds_format": "", "ds_source": "Self generated.
", "ds_quality": "The flower rod observation method was used. 43 flower stalks were arranged between 3750 and 4100 above sea level in Glacier No. 1 at the headwaters of Urumqi River. At the end of the glacier melting, the exposed height of the flower stalks at different positions, as well as the height of the measuring rod, the additional ice thickness, the snow profile and the depth of the polluted layer, were measured with a tape measure.
", "ds_ref_way": "Li Zhongqin, Wang Wenbin, Wang Puyu, et al. Institute of environment and Engineering in cold and arid regions, Chinese Academy of Sciences. Annual material balance data set of Urumqi Glacier No.1, Tianshan Mountains, 2012-2017. 2019. Li Zhen, Wang Wenbing, Li Zhongqin, 2012-2017 annual material balance data set of Glacier No.1 at the headwaters of Urumqi River, Tianshan Mountains, China, national glacier, permafrost and desert scientific data center（ www.ncdc.ac.cn )，2019，doi：10.12072/DIMaC.0019.2020.db", "ds_abstract": "This data set is aimed at Glacier No.1 at the headwaters of Urumqi River in Tianshan Mountains. The data set includes balance year and material balance. The dataset contains six records. The observation method of flower stalk was used. At the end of each year's glacier melting, the exposed height of flower stalks at different positions was measured with tape. Combined with the snow pit profile, the amount of glacier melting and accumulation was calculated, and the net material balance in each balance year was obtained, which was expressed in millimeter water equivalent (mm W.E.). During the observation period, some of the flower stalks were toppled or covered by snow, so the effective data could not be obtained, which had a certain impact on the calculation results of the material balance year. Protocol sharing is adopted. The data set contains two fields: balance year (unit: year) and material balance quantity (unit: millimeter water equivalent (mm W.E.)). The data set is measured year by year from August 2012 to August 2017. The accuracy of material balance calculation results is controlled within 5 mm water equivalent (MMW. E.).
", "ds_time_res": "", "ds_acq_place": "Urumqi Glacier No.1, Tianshan Mountains", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The observation method of flower stalk was used. At the end of each year's glacier melting, the exposed height of flower stalks at different positions was measured with tape. Combined with the snow pit profile, the amount of glacier melting and accumulation was calculated, and the net material balance in each balance year was obtained, which was expressed in millimeter water equivalent (mm W.E.). During the observation period, some of the flower stalks were toppled or covered by snow, so the effective data could not be obtained, which had a certain impact on the calculation results of the material balance year. The measurement and calculation process should be standardized and strictly reviewed.
", "ds_ref_instruction": " \nThe annual material balance data set of Urumqi Glacier No.1, in Tianshan Mountains from 2012 to 2017 is derived from the \"survey of ice quantity change in major glaciation centers in Western China (2013fy111400)\". The property right of the data belongs to the Institute of environment and Engineering in cold and arid areas of Chinese Academy of Sciences." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "物质平衡", "花杆", "天山乌鲁木齐河源1号冰川" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "天山乌鲁木齐河源1号冰川" ], "ds_time_tags": [ 2012, 2013, 2014, 2015, 2016, 2017 ], "ds_contributors": [ { "true_name": "李真", "email": "lizhen@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" }, { "true_name": "王文兵", "email": "", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_meta_authors": [ { "true_name": "吴坤鹏", "email": "wukunpeng2008@lzb.ac.cn", "work_for": "云南大学国际河流与生态安全研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "李真", "email": "lizhen@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "category": "冰川" }