MCD12Q1土地覆盖数据集中包含了11个主要土地覆盖类型，根据国际地圈生物圈计划（IGBP），其中包括7个自然植被类型，3个土地开发和镶嵌的地类和1个非草木土地类型。 IGBP的全球植被分类方案数据类型最为丰富，因此采用第一个数据集分类方案(LC_Type1)的数据。数据类型是8位无符号整型，有效值范围为1-17,255是填充值。\n
该数据集空间分辨率为500米，时间分辨率为年。", "ds_source": "
数据来源于NASA官网：https://ladsweb.modaps.eosdis.nasa.gov/search/。\n
该数据集为MCD12Q1数据，涉及分幅影像网格为h25v04、h25v05和h26v05。", "ds_process_way": "
利用MRT工具及Python语言代码，进行批量拼接、投影转换、裁剪等处理，生成甘肃省2001-2021年MCD12Q1土地利用类型数据。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": "2001-01-01 00:00:00", "ds_acq_end_time": "2021-12-31 00:00:00", "ds_acq_place": "甘肃省", "ds_acq_lon_east": 108.7075, "ds_acq_lat_south": 32.596111111111114, "ds_acq_lon_west": 92.33777777777777, "ds_acq_lat_north": 42.79333333333333, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 649634929, "ds_files_count": 106, "ds_format": "hdf、tif", "ds_space_res": "500m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "/", "ds_thumbnail": "70bc337f-0cf1-43c7-b850-ad503e1f49e9.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。", "ds_from_station": null, "organization_id": "526ff655-4cd4-4650-bb86-6fd3481dfb65", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2023-10-24 16:05:01", "last_updated": "2025-05-29 16:22:18", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.GSEER.DB4044.2023", "i18n": { "en": { "title": "MCD12Q1 Land Use Remote Sensing Dataset in Gansu Province (2001-2021)", "ds_format": "hdf、tif", "ds_source": "
The data is sourced from NASA's official website: https://ladsweb.modaps.eosdis.nasa.gov/search/ .\n
This dataset is MCD12Q1 data, involving segmented image grids of h25v04, h25v05, and h26v05.", "ds_quality": "
The data quality is good.", "ds_ref_way": "", "ds_abstract": "
The MCD12Q1 land cover dataset contains 11 main land cover types, including 7 natural vegetation types, 3 land development and mosaic land types, and 1 non vegetation land type according to the International Geosphere Biosphere Program (IGBP). IGBP's global vegetation classification scheme has the most diverse data types, so the data from the first dataset classification scheme (LC_Type1) is used. The data type is an 8-bit unsigned integer, with a valid value range of 1-17255 as a fill in value.\n
The spatial resolution of this dataset is 500 meters, and the temporal resolution is years.
", "ds_time_res": "", "ds_acq_place": "Gansu Province", "ds_space_res": "500m", "ds_projection": "/", "ds_process_way": "Using MRT tools and Python language code, perform batch splicing, projection transformation, cropping, and other processing to generate land use type data for MCD12Q1 in Gansu Province from 2001 to 2021.", "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": [ "甘肃省", "土地覆盖", "土地类型" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "甘肃省" ], "ds_time_tags": [ 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 ], "ds_contributors": [ { "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" } ], "ds_meta_authors": [ { "true_name": "李红星", "email": "lihongxing@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "敏玉芳", "email": "myf@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": "遥感及产品" }