{ "created": "2021-11-15 15:21:54", "updated": "2026-05-06 07:26:32", "id": "f2fa3f52-dfa4-4ca4-95bb-73cf919fa8c3", "version": 2, "ds_topic": null, "title_cn": "西北内陆区各区域地表调控系数数据集（1979-2017年）", "title_en": "Data set of regional surface regulation coefficients in northwest inland area (1979-2017)", "ds_abstract": "

  基于空中水资源基本理论，将大气中由特殊的边界层形成的次生环流锁定且具备发生相变转化为云和降水潜力的水物质定义为有效水汽，然后基于水汽辐合区开发有效水汽识别算法，并对区域可开发空中水资源（即有效水汽）的总量和空中水资源降水潜力进行评估。", "ds_source": "

  （1）欧洲中尺度天气预测中心（ECMWF）的实时再分析资料（ERA-Interim）日平均数据，下载地址为：https://apps.ecmwf.int/datasets/data/interim-full-daily/levtype=sfc/ \n

  （2）国家气象信息中心中国地面降水月值格点数据，下载地址为：\nhttp://data.cma.cn/data/detail/dataCode/SURF_CLI_CHN_PRE_MON_GRID_0.5.html\n

  （3）收集内陆区各分区控制站点径流值及水库库容值。", "ds_process_way": "

  （1）下载国家气象信息中心中国地面降水月值格点数据,将空间分辨率统一为0.75°×0.75°。\n

  （2）下载ERA-Interim径流数据，将空间分辨率统一为0.75°×0.75°。\n

  （3）基于ERA-Interim比湿数据，将空间分辨率统一为0.75°×0.75°，利用整层积分公式计算得到可降水量矩阵。\n

  （4）计算每个格点的降水与可降水的比值，即可得到降水转化系数。\n

  （5）计算每个格点的降水与径流的比值，即可得到径流系数。\n

  （6）计算每个格点的工程库容与河段可利用水资源量之比，即调控系数。\n

  （7）最后进行季平均及年平均，得到区域内各级季节数据。", "ds_quality": "

  严格按照相关方法和标准规范进行统计分析，数据质量良好。", "ds_acq_start_time": "1979-01-01 00:00:00", "ds_acq_end_time": "2017-12-31 00:00:00", "ds_acq_place": "西北内陆区", "ds_acq_lon_east": 106.965, "ds_acq_lat_south": 34.791666666666664, "ds_acq_lon_west": 73.37638888888888, "ds_acq_lat_north": 47.04, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 6129758, "ds_files_count": 3, "ds_format": "excel,tif", "ds_space_res": null, "ds_time_res": "年", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "f2fa3f52-dfa4-4ca4-95bb-73cf919fa8c3.tif", "ds_thumb_from": 0, "ds_ref_way": "钟德钰，西北内陆区各区域地表调控系数数据集（1979-2017年），国家冰川冻土沙漠科学数据中心(www.ncdc.ac.cn)，2021，doi：10.12072/ncdc.XBSAQ.db2292.2022", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "fba361ca-30e1-4a60-a262-c183d8cd6ab3", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.XBSAQ.db2292.2022", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2022-06-30 09:26:14", "last_updated": "2022-06-30 12:00:11", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.XBSAQ.db2292.2022", "i18n": { "en": { "title": "Data set of regional surface regulation coefficients in northwest inland area (1979-2017)", "ds_format": "", "ds_source": "

  (1) The daily average data of real-time reanalysis data (era Interim) of European Mesoscale Weather Prediction Center (ECMWF) can be downloaded from: https://apps.ecmwf.int/datasets/data/interim-full-daily/levtype=sfc/ \n

  (2) The grid data of monthly surface precipitation in China from the National Meteorological Information Center can be downloaded from:\nhttp://data.cma.cn/data/detail/dataCode/SURF_CLI_CHN_PRE_MON_GRID_0.5.html\n

  (3) Collect the runoff value and reservoir capacity value of each control station in the inland area.", "ds_quality": "

  Statistical analysis was carried out in strict accordance with relevant methods, standards and specifications, and the data quality was good.", "ds_ref_way": "", "ds_abstract": "

\n
\n

  Based on the basic theory of air water resources, the water substances in the atmosphere locked by the secondary circulation formed by the special boundary layer and with the potential of phase transformation into clouds and precipitation are defined as effective water vapor, and then the effective water vapor identification algorithm is developed based on the water vapor convergence area, and the regional exploitable air water resources (i.e. effective water vapor) The total amount and air water resources precipitation potential are evaluated.

", "ds_time_res": "年", "ds_acq_place": "Northwest inland area", "ds_space_res": "", "ds_projection": "", "ds_process_way": "

  (1) Download the grid data of monthly surface precipitation in China from the National Meteorological Information Center, and unify the spatial resolution to 0.75 ° × 0.75°。\n

  (2) Download era interim runoff data and unify the spatial resolution to 0.75 ° × 0.75°。\n

  (3) Based on era interim specific humidity data, the spatial resolution is unified to 0.75 ° × 0.75 °, the precipitable water matrix is calculated by using the integral formula of the whole layer.\n

  (4) The precipitation conversion coefficient can be obtained by calculating the ratio of precipitation to available precipitation at each grid point.\n

  (5) The runoff coefficient can be obtained by calculating the ratio of precipitation to runoff at each grid point.\n

  (6) Calculate the ratio of the engineering storage capacity of each grid point to the available water resources of the river section, that is, the regulation coefficient.\n

  (7) Finally, the seasonal average and annual average are carried out to obtain the seasonal data at all levels in the region.", "ds_ref_instruction": " " } }, "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": [ "西北内陆区", "地表调控系数", "1979年-2017年" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "西北内陆区" ], "ds_time_tags": [ 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 ], "ds_contributors": [ { "true_name": "钟德钰", "email": "zhongdy@tsinghua.edu.cn", "work_for": "清华大学水利水电工程系", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "田颖琳", "email": "tianyl18@mails.tsinghua.edu.cn", "work_for": "清华大学", "country": "中国" } ], "ds_managers": [ { "true_name": "钟德钰", "email": "zhongdy@tsinghua.edu.cn", "work_for": "清华大学水利水电工程系", "country": "中国" } ], "category": "水文" }