该数据集包含了2012年6月19日至11月24日的黑河中游径流加密观测中2号点的河流水位和流速观测数据。观测点位于甘肃省张掖市312国道黑河桥，分为两个河道，东面的标记为1号，西面的标记为2号。河道宽度分别为70米、20米。河床为砂砾石，断面不稳定。观测点的经纬度是N38°59′51.71″，E100°24′38.76″，海拔1485米。数据说明包括以下部分：\n
\n水位观测：采用SR50超声测距仪，数据涵盖时间段6月19日至11月24日，观测频率30分钟，单位（cm）；\n
\n流量观测：通过最新技术手段ADCP监测流量，获取精确的水位流量曲线，依托水位过程观测获得径流量变化过程。2号点-312桥断面受到频繁人为扰动，水位流量曲线有待进一步观测，单位（m3 s-1）；\n
\n缺值数据统一采用字符串-6999表示。多尺度观测试验或站点信息请参考Liu et al. (2016)，观测数据处理请参考He et al.(2016)。
", "ds_source": "观测点位于甘肃省张掖市312国道黑河桥，分为两个河道，东面的标记为1号，西面的标记为2号。河道宽度分别为70米、20米。河床为砂砾石，断面不稳定。观测点的经纬度是N38°59′51.71″，E100°24′38.76″，海拔1485米。\n
\n站点信息请参考Li et al. (2013)和Liu et al. (2018)。
", "ds_process_way": "水位观测：采用SR50超声测距仪，数据涵盖时间段6月19日至11月24日，观测频率30分钟，单位（cm）；\n
\n流量观测：通过最新技术手段ADCP监测流量，获取精确的水位流量曲线，依托水位过程观测获得径流量变化过程。2号点-312桥断面受到频繁人为扰动，水位流量曲线有待进一步观测，单位（m3 s-1）。
", "ds_quality": "缺值数据统一采用字符串-6999表示。
", "ds_acq_start_time": "2012-06-19 00:00:00", "ds_acq_end_time": "2012-11-24 00:00:00", "ds_acq_place": "黑河流域", "ds_acq_lon_east": 100.41055555555556, "ds_acq_lat_south": 38.9975, "ds_acq_lon_west": 100.41027777777778, "ds_acq_lat_north": 38.99777777777778, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 182397, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "6af882c7-76d3-4262-a072-71d4dff8f977.png", "ds_thumb_from": 0, "ds_ref_way": "刘绍民，黑河生态水文遥感试验：非均匀下垫面地表蒸散发的多尺度观测试验-径流观测数据集（2号点312-2012），国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn/)，2020，doi：10.12072/NIEER.db0087.2020", "paper_ref_way": "", "ds_ref_instruction": "本数据由“黑河生态水文遥感试验（HiWATER）”产生，用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。", "ds_from_station": null, "organization_id": "c94b3578-20da-4346-9de9-c702b6ca8983", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2021-08-27 10:05:36", "last_updated": "2021-08-27 10:05:36", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1605", "i18n": { "en": { "title": "Heihe River eco hydrological remote sensing experiment: multi-scale observation experiment of surface evapotranspiration on non-uniform underlying surface - runoff observation data set (point 2, 312-2012)", "ds_format": "", "ds_source": "The observation point is located at Heihe bridge, 312 National Road, Zhangye City, Gansu Province. It is divided into two rivers. The East is marked as No. 1 and the west is marked as No. 2. The river width is 70m and 20m respectively. The riverbed is sandy gravel and the section is unstable. The longitude and latitude of the observation points are N38 ° 59 ′ 51.71 ″, E100 ° 24 ′ 38.76 ″, with an altitude of 1485m.\n
\nFor site information, please refer to Li et al. (2013) and Liu et al. (2018)
", "ds_quality": "The missing value data is uniformly represented by string - 6999
", "ds_ref_way": "", "ds_abstract": "The data set contains the observation data of river water level and velocity at point 2 in the intensive observation of runoff in the middle reaches of Heihe River from June 19 to November 24, 2012. The observation point is located at Heihe bridge, 312 National Road, Zhangye City, Gansu Province. It is divided into two rivers. The East is marked as No. 1 and the west is marked as No. 2. The river width is 70m and 20m respectively. The riverbed is sandy gravel and the section is unstable. The longitude and latitude of the observation points are N38 ° 59 ′ 51.71 ″, E100 ° 24 ′ 38.76 ″, with an altitude of 1485m. The data description includes the following parts:\n
\nWater level observation: sr50 ultrasonic rangefinder is used. The data covers the time period from June 19 to November 24. The observation frequency is 30 minutes, unit (CM);\n
\nFlow observation: the flow is monitored by ADCP through the latest technical means to obtain accurate water level flow curve, and the runoff change process is obtained by relying on water level process observation. The section of No. 2 point - 312 bridge is subject to frequent artificial disturbance, and the water level discharge curve needs further observation, unit (M3 s-1);\n
\nThe missing value data is uniformly represented by string - 6999. For multi-scale observation test or site information, please refer to Liu et al. (2016), and for observation data processing, please refer to he et al. (2016)
", "ds_time_res": "日", "ds_acq_place": "", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Water level observation: sr50 ultrasonic rangefinder is used. The data covers the time period from June 19 to November 24. The observation frequency is 30 minutes, unit (CM);\n
\nFlow observation: the flow is monitored by ADCP through the latest technical means to obtain accurate water level flow curve, and the runoff change process is obtained by relying on water level process observation. The section of point 2-312 bridge is frequently disturbed by human beings, and the water level discharge curve needs further observation, unit (M3 s-1)
", "ds_ref_instruction": " \nThis data is generated by \"Heihe eco hydrological remote sensing experiment (hiwater)\". When using the data, users should clearly state the source of the data in the text, and quote the reference mode provided by this metadata in the reference section." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC 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": [ "径流量", "河川径流观测", "ADCP", "水文气象观测网" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中游人工绿洲试验区", "黑河流域", "2号点312桥" ], "ds_time_tags": [ 2012 ], "ds_contributors": [ { "true_name": "刘绍民", "email": "smliu@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "刘绍民", "email": "smliu@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" } ], "ds_managers": [ { "true_name": "徐自为", "email": "xuzw@bnu.edu.cn", "work_for": "北京师范大学地理学与遥感科学学院", "country": "中国" } ], "category": "水文" }