本数据集为2025年王茂沟流域雨量站降水观测数据。王茂沟流域位于陕西省榆林市绥德县，属于韭园沟（无定河一级支流）的一级支流。数据包括流域站网布设图、逐日降水量表、降水量摘录表、各时段最大降水量表。王茂沟流域雨量站基本情况等详见《王茂沟流域2025年情况说明》。观测指标为降水量（mm）。
", "ds_source": "王茂沟流域共布设了王茂庄站一个雨量站，使用DSJ2型虹吸式自记雨量计和口径为20cm的SM1型普通雨量计进行平行观测，自记雨量计故障时用普通雨量计代替。仪器连续观测，人工定时观测。将自计纸上的曲线按照两段制摘录，形成摘录表，用电脑生成各时段最大降水量表。
", "ds_process_way": "降水量观测仪器有DSJ2型虹吸式自记雨量计和口径为20cm的SM1型普通雨量计。DSJ2型自记雨量计采用24段制进行汛期观测，SM1型普通雨量计采用8时、20时两段制进行全年观测，在自记雨量计出现故障的情况下，用普通雨量计观测资料进行补充。主要观测降水起止时间，统计降水量，当降水间歇时间大于15min，间歇前后作为两次降水进行观测，当间歇时间小于15min则作为一次降水观测记载，如果一次降水跨过8时、20时，应在8时、20时加测。
", "ds_quality": "自记雨量计每年观测开始前进行仪器标定。数据录入过程中经过四级人工校核，分别是制表、初校、复校、审核，以确保数据质量。
", "ds_acq_start_time": "2025-01-01 00:00:00", "ds_acq_end_time": "2025-12-31 00:00:00", "ds_acq_place": "陕西省榆林市绥德县王茂沟流域", "ds_acq_lon_east": 110.37944444444443, "ds_acq_lat_south": 37.571111111111115, "ds_acq_lon_west": 110.34277777777777, "ds_acq_lat_north": 37.59444444444445, "ds_acq_alt_low": 2.0, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 178605, "ds_files_count": 4, "ds_format": "Excel,word,pdf", "ds_space_res": "", "ds_time_res": "分", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "9bb76bb5-a3d7-45db-8c3d-e6e4bbac2036.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "f447b2e7-0b54-4601-8d49-0164f2a3fd9a", "ds_serv_man": null, "ds_serv_phone": null, "ds_serv_mail": null, "doi_value": "", "subject_codes": [], "quality_level": 0, "publish_time": "2026-10-21 09:07:24", "last_updated": "2026-10-21 09:07:24", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.hwsdzhan.db7734.2026", "i18n": { "en": { "title": "The precipitation observation dataset of Wangmaogou watershed in the first sub area of loess hilly and gully region in 2025", "ds_format": "", "ds_source": "A total of one rainfall station at Wangmaozhuang Station has been set up in the Wangmaogou Basin. The DSJ2 siphon self-recording rain gauge and the SM1 ordinary rain gauge with a diameter of 20cm are used for parallel observations. When the self-recording rain gauge fails, the ordinary rain gauge is used instead. The instrument observes continuously and manually observes regularly. The curves on the self-counting paper are extracted according to a two-stage system to form an extract table, and the maximum precipitation table for each period is generated using a computer.
", "ds_quality": "The recording rain gauge shall be calibrated before the start of observation every year. In the process of data entry, there are four levels of manual verification: tabulation, initial verification, re verification, and audit to ensure data quality
", "ds_ref_way": "", "ds_abstract": "This dataset is the precipitation observation data from the rainfall station in the Wangmaogou Basin in 2025. The Wangmaogou Basin is located in Suide County, Yulin City, Shaanxi Province, and belongs to the first-class tributary of Jiuyuangou (a first-class tributary of Wuding River). The data includes the basin station network layout map, daily precipitation scale, precipitation extract table, and maximum precipitation scale for each period. For the basic information of the rainfall stations in the Wangmaogou Basin, please refer to the \"Description of the Wangmaogou Basin in 2025\". The observation indicator is precipitation (mm).
", "ds_time_res": "minutes, days, times", "ds_acq_place": "Wangmaogou watershed, Suide County, Yulin City, Shaanxi Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Precipitation observation instruments include DSJ2 siphon self recording rain gauge and SM1 ordinary rain gauge with a diameter of 20cm. The DSJ2 self recording rain gauge adopts the 24 segment system for flood season observation, and the SM1 ordinary rain gauge adopts the 8:00 and 20:00 two segment system for annual observation. In case of failure of the self recording rain gauge, the observation data of the ordinary rain gauge shall be used for supplement. The starting and ending time of precipitation is mainly observed, and the precipitation is counted. When the interval time of precipitation is more than 15min, it is observed as two times of precipitation before and after the interval time. When the interval time is less than 15min, it is recorded as a precipitation observation. If a precipitation exceeds 8 and 20 hours, it should be added at 8 and 20 hours
", "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, "belong_to_nieer": false, "allow_update_data": false, "created_from": "fair", "ds_topic_tags": [ "降水摘录", "最大降水量", "时段降水量", "日降水量" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "绥德", "榆林", "王茂沟", "陕西省" ], "ds_time_tags": [ 2025 ], "ds_contributors": [ { "true_name": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "email": "hhstbcsdzljdj@163.com", "work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "麦旭东", "email": "hhstbcsdzljdj@163.com", "work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "country": "中国" } ], "ds_managers": [ { "true_name": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "email": "hhstbcsdzljdj@163.com", "work_for": "黄河水土保持绥德治理监督局（绥德水土保持科学试验站）", "country": "中国" } ], "category": "水土保持" }