本数据集包含我国2410个气象台站积雪观测空间代表性评估结果，包含站点及周围25km×25km窗口范围内地表覆盖、地形、积雪环境特征等信息以及气象台站空间代表性的评估等级。数据集包含1个文件夹，1个数据表，共2410条记录。数据主要来自于分析处理，数据完全开放共享。
", "ds_source": "气象站点经纬度（来源于中国气象局）；\n2016年500m 空间分辨率MODIS土地覆盖产品（来源于MODIS产品网站）；\n2000年GTOPO地形数据（来源于USGS网站）；\n2000-2014年500 m空间分辨率 MODIS日积雪产品（来源于MODIS产品网站）
", "ds_process_way": "地面上的测量相比卫星观测而言，都是“点”尺度上的。这个“点”尺度能代表的空间范围，取决于地面环境的均匀性程度以及具体的观测要素特征。本数据集依据周围25km×25km窗口范围地形、土地覆盖、积雪特征等要素对台站积雪环境代表性开展分析。通过计算站点周围窗口高程、地形复杂度、水土面积比、城镇面积比、森林面积比、站点所在像元土地覆盖类型、土地覆盖多样性指数、窗口内所有像元积雪条件概率的均值和标准差等参数，进行台站代表性分级。
", "ds_quality": "数据集制作使用的原始数据质量均相对可靠，影响要素考虑全面，分析方法合理，保证了较好的数据质量。
", "ds_acq_start_time": "2000-01-01 00:00:00", "ds_acq_end_time": "2016-12-31 00:00:00", "ds_acq_place": "2410个中国县级气象站", "ds_acq_lon_east": 135.0, "ds_acq_lat_south": 16.0, "ds_acq_lon_west": 75.0, "ds_acq_lat_north": 54.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 549113, "ds_files_count": 3, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "5a08a130-baaf-432c-b39f-7651be08d263.jpg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "aba68fe5-65d3-41b1-b036-bc274a834b5e", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "lihongxing@lzb.ac.cn", "doi_value": "10.12072/ncdc.I-SNOW.db0017.2021", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2021-10-22 15:05:22", "last_updated": "2023-03-06 12:37:44", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.isnow.db2528.2022", "i18n": { "en": { "title": "Representative evaluation dataset of snow cover observation space at CMA meteorological stations", "ds_format": "", "ds_source": "", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "", "ds_time_res": "", "ds_acq_place": "2410 county-level meteorological stations in China", "ds_space_res": "", "ds_projection": "", "ds_process_way": "", "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": [ "气象台站", "积雪观测", "空间代表性" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "中国陆域" ], "ds_time_tags": [ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 ], "ds_contributors": [ { "true_name": "王园园", "email": "wangyuany@cma.gov.cn", "work_for": "国家卫星气象中心", "country": "中国" }, { "true_name": "郑照军", "email": "zhengzj@cma.gov.cn", "work_for": "国家卫星气象中心", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "王园园", "email": "wangyuany@cma.gov.cn", "work_for": "国家卫星气象中心", "country": "中国" } ], "ds_managers": [ { "true_name": "王园园", "email": "wangyuany@cma.gov.cn", "work_for": "国家卫星气象中心", "country": "中国" } ], "category": "积雪" }