本数据为2001年-2020年石羊河流域地表蒸散发年总量数据，空间分辨率1公里。本数据产品采用ETMonitor模型并结合多源遥感数据及再分析数据而生成。数据生产过程中首先计算日尺度蒸散发，再累加得到蒸散发年总量。ETMonitor遥感蒸散发模型是基于能量平衡、水量平衡及植物生理过程等的机理模型。蒸散发单位为毫米每年，转换系数为0.01。", "ds_source": "
气象数据来源于欧洲中期天气预报中心ERA5全球再分析数据；遥感数据来源于MODIS、GLASS、ASCAT、ESCCI、SRTM-DEM 地表特征数据产品。", "ds_process_way": "
遥感影像的拼接、裁剪、降尺度、重采样等处理。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": "2001-01-01 00:00:00", "ds_acq_end_time": "2020-12-31 00:00:00", "ds_acq_place": "石羊河流域", "ds_acq_lon_east": 104.26, "ds_acq_lat_south": 37.12, "ds_acq_lon_west": 101.11999999999999, "ds_acq_lat_north": 39.480000000000004, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 6420568, "ds_files_count": 2, "ds_format": "tif", "ds_space_res": "1000", "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "8a188c3f-e6c4-42aa-b5ed-9fa2a91cb619.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "3aa98856-2cf9-444f-a9db-3992b8985eec", "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": "2023-08-23 15:59:30", "last_updated": "2025-05-29 17:26:48", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NIEER.DB3921.2023", "i18n": { "en": { "title": "Shiyang River Basin 1-kilometer resolution total annual surface evapotranspiration data set (2001-2020)", "ds_format": "tif", "ds_source": "
Meteorological data from the European Center for Medium-Range Weather Forecasts ERA5 global reanalysis data; Remote sensing data from MODIS, GLASS, ASCAT, ESCCI, SRTM-DEM surface characterization data products.", "ds_quality": "
Data quality is good.", "ds_ref_way": "", "ds_abstract": "
This data is the annual total surface evapotranspiration (ET) data for the Shiyang River Basin from 2001 to 2020, with a spatial resolution of 1 kilometer. This data product is generated by using the ETMonitor model and combining multi-source remote sensing data and reanalysis data. In the process of data production, the daily scale ET is firstly calculated, and then accumulated to get the annual total ET. The ETMonitor remote sensing ET model is based on the mechanism model of energy balance, water balance and plant physiological process, etc. The unit of ET is mm per year. The ET unit is millimeters per year and the conversion factor is 0.01.
", "ds_time_res": "年", "ds_acq_place": "Shiyang River Basin", "ds_space_res": "1000", "ds_projection": "", "ds_process_way": "Processing of remote sensing images such as splicing, cropping, downscaling, and resampling.", "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": [ "地表蒸散发", "1公里分辨率", "石羊河流域" ], "ds_subject_tags": [ "大气科学" ], "ds_class_tags": [], "ds_locus_tags": [ "石羊河流域" ], "ds_time_tags": [ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 ], "ds_contributors": [ { "true_name": "贾立", "email": "jiali@aircas.ac.cn", "work_for": "中国科学院空天信息创新研究院", "country": "中国" }, { "true_name": "胡光成", "email": "hugc@aircas.ac.cn", "work_for": "中国科学院空天信息创新研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "贾立", "email": "jiali@aircas.ac.cn", "work_for": "中国科学院空天信息创新研究院", "country": "中国" }, { "true_name": "胡光成", "email": "hugc@aircas.ac.cn", "work_for": "中国科学院空天信息创新研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "陈琪婷", "email": "chenqt@aircas.ac.cn", "work_for": "中国科学院空天信息创新研究院", "country": "中国" } ], "category": "气象" }