本研究采用欧洲中期天气预报中心（ECMWF）发布的第五代大气再分析资料（ERA5），该数据集基于数据同化技术整合了全球多源观测，提供了空间分辨率为0.25°×0.25°、时间分辨率为日尺度的关键变量，用于分析流域入出汛对应的背景环流。
", "ds_source": "本数据集源自欧洲中期天气预报中心（ECMWF）发布的第五代全球大气再分析资料——ERA5（数据来源：https://cds.climate.copernicus.eu/datasets/reanalysis-era5-single-levels）
", "ds_process_way": "数据同化与数值预报模型融合
", "ds_quality": "数据比较准确，达到精度要求。
", "ds_acq_start_time": "2026-01-01 00:00:00", "ds_acq_end_time": null, "ds_acq_place": "全球", "ds_acq_lon_east": 180.0, "ds_acq_lat_south": -90.0, "ds_acq_lon_west": -180.0, "ds_acq_lat_north": 90.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 33124172961, "ds_files_count": 0, "ds_format": "*.nc", "ds_space_res": "度", "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "2a9d63d4-e25e-4b5b-8bc8-6b5d734da231.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": "", "organization_id": "44547705-9513-4685-a641-661bdf406520", "ds_serv_man": "", "ds_serv_phone": "", "ds_serv_mail": "", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 0, "publish_time": "2026-07-08 09:38:14", "last_updated": "2026-07-13 09:42:28", "protected": false, "protected_to": "2027-01-01 00:00:00", "lang": "zh", "cstr": "", "i18n": { "en": { "title": "ERA5 Reanalysis Daily Upper-Air Dataset over the Upper Yangtze River Basin (2019)", "ds_format": "*.nc", "ds_source": "This dataset is derived from the fifth-generation global atmospheric reanalysis data-ERA5 released by the European Center for Medium-Range Weather Forecasting (ECMWF)(Data source: https://cds.climate.copernicus.eu/dataets/reanalysis-era5-single-levels)
", "ds_quality": "The data is relatively accurate and meets the accuracy requirements.
", "ds_ref_way": "", "ds_abstract": "This study uses the fifth-generation atmospheric reanalysis data (ERA5) released by the European Center for Medium-Range Weather Forecasts (ECMWF). This dataset integrates global multi-source observations based on data assimilation technology and provides key variables with a spatial resolution of 0.25°×0.25° and a temporal resolution of 0.25 ° on the daily scale. It is used to analyze the background circulation corresponding to flood seasons in the basin.
", "ds_time_res": "", "ds_acq_place": "global", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Data assimilation and numerical prediction model fusion
", "ds_ref_instruction": "None" } }, "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, "ds_topic_tags": [ "再分析资料", "高空" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "全球" ], "ds_time_tags": [ 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, 2019 ], "ds_contributors": [ { "true_name": "王浩先", "email": "1093940600@qq.com", "work_for": "河海大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "王浩先", "email": "1093940600@qq.com", "work_for": "河海大学", "country": "中国" } ], "ds_managers": [ { "true_name": "王浩先", "email": "1093940600@qq.com", "work_for": "河海大学", "country": "中国" } ], "category": "其他" }