月标准化降水蒸散指数(SPEI)可用于监测和评价1个月或更长干旱期的干旱特征。基于1961 - 2018年中国大陆427个气象站的数据，建立逐日SPEI数据集，克服了逐月SPEI时间尺度粗糙的缺点。本数据集不仅可以用于识别干旱事件的开始和结束日期，还可以用于研究不同时间尺度下的气象、农业、水文和社会经济干旱。", "ds_source": "
国家气象科学数据共享服务平台(http://data.cma.cn/)。", "ds_process_way": "
通过日降水量与日潜在蒸散量之差计算日SPEI。", "ds_quality": "
为保证数据记录的连续性和完整性，选取了427个气象站作为研究对象，剔除了全期缺失数据超过30d的气象站。", "ds_acq_start_time": "1961-01-01 00:00:00", "ds_acq_end_time": "2018-12-31 00:00:00", "ds_acq_place": "中国", "ds_acq_lon_east": 138.3, "ds_acq_lat_south": 18.166666666666668, "ds_acq_lon_west": 76.0, "ds_acq_lat_north": 52.25, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 1438197265, "ds_files_count": 2, "ds_format": "csv", "ds_space_res": "", "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "1f5961a2-fe24-46ea-8dff-18cc54fa7433.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a4dd5849-78f2-44c5-b0f1-3450e952b2a2", "ds_serv_man": "敏玉芳", "ds_serv_phone": "09314967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.15" ], "quality_level": 3, "publish_time": "2023-12-27 14:50:17", "last_updated": "2026-01-14 11:02:32", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.FIGSHARE.DB4154.2023", "i18n": { "en": { "title": "Muliti-scale daily SPEI dataset over the Mainland China from 1961-2018", "ds_format": "csv", "ds_source": "
National Meteorological Science Data Sharing Service Platform（ http://data.cma.cn/ ）.", "ds_quality": "
To ensure the continuity and completeness of data recording, 427 meteorological stations were selected as the research objects, and meteorological stations with missing data exceeding 30 days throughout the period were excluded.", "ds_ref_way": "", "ds_abstract": "
The monthly standardized precipitation evapotranspiration index (SPEI) can be used to monitor and evaluate the drought characteristics of one month or longer drought periods. Based on the data of 427 meteorological stations in Chinese Mainland from 1961 to 2018, a daily SPEI dataset was established to overcome the shortcomings of rough monthly SPEI time scale. This dataset can not only be used to identify the start and end dates of drought events, but also to study meteorological, agricultural, hydrological, and socio-economic droughts at different time scales.
", "ds_time_res": "日", "ds_acq_place": "China", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Calculate daily SPEI by the difference between daily precipitation and daily potential evapotranspiration.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_outside", "cstr_reg_from": "reg_outside", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "SPEI", "多尺度", "干旱", "降水蒸散尺度" ], "ds_subject_tags": [ "大气科学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国" ], "ds_time_tags": [ 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 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, 2018 ], "ds_contributors": [ { "true_name": "王千锋", "email": "wangqianfeng@fzu.edu.cn", "work_for": "福州大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "王千锋", "email": "wangqianfeng@fzu.edu.cn", "work_for": "福州大学", "country": "中国" } ], "ds_managers": [ { "true_name": "张耀南", "email": "yaonan@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "气象" }