本数据为盈科绿洲、花寨子荒漠和扁都口加密观测区的植被覆盖度数据集。\n
\n测量方法：利用自制覆盖度观测仪器，相机在距地面2.5m至3.5m高度拍摄地面照片，同时在照片范围内放置长度已知的物体（皮尺、竹竿等）来标定照片的面积大小，利用GPS确定照片拍摄的位置，并记录下与覆盖度、拍摄环境相关的信息。利用LAB色度空间变换技术，提取的绿色植被覆盖度。\n
\n测量日期：2008-05-20，2008-05-24，2008-05-25，2008-05-28，2008-05-30，2008-06-11，2008-06-14，2008-06-15，2008-06-21，2008-06-23，2008-06-24，2008-06-27，2008-06-30，2008-07-02。 \n
\n测量样地：盈科绿洲玉米地、盈科绿洲小麦地、花寨子荒漠玉米地、花寨子荒漠样地1、花寨子荒漠样地2和扁都口油菜、大麦和草地杨堤。\n
\n数据处理：数据结果包括提取的植被影像和覆盖度数据。覆盖度原始数据包括覆盖度光学照片与覆盖度数据记录两部分。利用LAB色度空间变换技术，提取光学照片绿色植被覆盖度。
", "ds_source": "测量日期：2008-05-20，2008-05-24，2008-05-25，2008-05-28，2008-05-30，2008-06-11，2008-06-14，2008-06-15，2008-06-21，2008-06-23，2008-06-24，2008-06-27，2008-06-30，2008-07-02。
\n测量样地：盈科绿洲玉米地、盈科绿洲小麦地、花寨子荒漠玉米地、花寨子荒漠样地1、花寨子荒漠样地2和扁都口油菜、大麦和草地杨堤。
", "ds_process_way": "测量方法：利用自制覆盖度观测仪器，相机在距地面2.5m至3.5m高度拍摄地面照片，同时在照片范围内放置长度已知的物体（皮尺、竹竿等）来标定照片的面积大小，利用GPS确定照片拍摄的位置，并记录下与覆盖度、拍摄环境相关的信息。利用LAB色度空间变换技术，提取的绿色植被覆盖度。
\n数据处理：数据结果包括提取的植被影像和覆盖度数据。覆盖度原始数据包括覆盖度光学照片与覆盖度数据记录两部分。利用LAB色度空间变换技术，提取光学照片绿色植被覆盖度。
", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2008-05-20 00:00:00", "ds_acq_end_time": "2008-07-02 00:00:00", "ds_acq_place": "黑河流域,花寨子荒漠加密观测区,中游干旱区水文试验区,盈科绿洲加密观测区,扁都口加密观测区", "ds_acq_lon_east": 101.03611111111111, "ds_acq_lat_south": 38.19194444444444, "ds_acq_lon_west": 100.28888888888889, "ds_acq_lat_north": 38.88, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 813287454, "ds_files_count": 2, "ds_format": "word,excel,img,", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "87761614-4f66-4171-966f-a81389ec3338.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "本数据由“黑河综合遥感联合试验”产生，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": "14df1d8b-6362-4c0f-b88e-b46d4abe5db9", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.NIEER.db1774.2022", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2022-03-14 15:03:32", "last_updated": "2023-08-22 14:53:10", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.NIEER.2021.1747", "i18n": { "en": { "title": "Heihe integrated remote sensing joint experiment: desert vegetation coverage data set of Yingke oasis, huazhaizi desert and biandukou intensive observation area (2008)", "ds_format": "word,excel,img,", "ds_source": "Measurement date: 2008-05-202008-05-242008-05-252008-05-282008-05-302008-06-112008-06-142008-06-152008-06-212008-06-232008-06-242008-06-272008-06-302008-07-02.\n
Survey sample plots: Yingke oasis corn plot, Yingke oasis wheat plot, huazhaizi desert corn plot, huazhaizi desert sample plot 1, huazhaizi desert sample plot 2 and biandukou rape, barley and grassland Yangdi.", "ds_quality": "
Good data quality.", "ds_ref_way": "", "ds_abstract": "
This data is the vegetation coverage data set of Yingke oasis, huazhaizi desert and biandukou encrypted observation area.\n
\nMeasurement method: use the self-made coverage observation instrument, take the ground photos with the camera at the height of 2.5m to 3.5m from the ground, place objects with known length (tape measure, bamboo pole, etc.) within the photo range to calibrate the area of the photos, use GPS to determine the photo shooting position, and record the information related to coverage and shooting environment. The green vegetation coverage is extracted by lab chromaticity space transformation technology.\n
\nMeasurement date: 2008-05-202008-05-242008-05-252008-05-282008-05-302008-06-112008-06-142008-06-152008-06-212008-06-232008-06-242008-06-272008-06-302008-07-02.\n
\nSurvey sample plots: Yingke oasis corn plot, Yingke oasis wheat plot, huazhaizi desert corn plot, huazhaizi desert sample plot 1, huazhaizi desert sample plot 2 and biandukou rape, barley and grassland Yangdi.\n
\nData processing: data results include extracted vegetation images and coverage data. The original coverage data includes coverage optical photos and coverage data records. The green vegetation coverage of optical photos is extracted by lab chromaticity space transformation technology.
", "ds_time_res": "日", "ds_acq_place": "Heihe River Basin, intensive observation area of huazhaizi desert, hydrological test area of arid area in the middle reaches, intensive observation area of Yingke oasis and intensive observation area of biandukou", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Measurement method: use the self-made coverage observation instrument, take the ground photos with the camera at the height of 2.5m to 3.5m from the ground, place objects with known length (tape measure, bamboo pole, etc.) within the photo range to calibrate the area of the photos, use GPS to determine the photo shooting position, and record the information related to coverage and shooting environment. The green vegetation coverage is extracted by lab chromaticity space transformation technology\n
Data processing: data results include extracted vegetation images and coverage data. The original coverage data includes coverage optical photos and coverage data records. The green vegetation coverage of optical photos is extracted by lab chromaticity space transformation technology.", "ds_ref_instruction": "This data is generated by \"Heihe integrated remote sensing joint test\". When using the data, users should clearly state the source of the data in the text and quote the reference method provided by this metadata in the reference part." } }, "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": [ "植被覆盖度", "植被", "鱼眼相机", "机载地面遥感" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "扁都口加密观测区", "花寨子荒漠加密观测区", "黑河流域", "中游干旱区水文试验区", "盈科绿洲加密观测区" ], "ds_time_tags": [ 2008 ], "ds_contributors": [ { "true_name": "任华忠", "email": "renhuazhong@pku.edu.cn", "work_for": "北京大学遥感与地理信息系统研究所", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "任华忠", "email": "renhuazhong@pku.edu.cn", "work_for": "北京大学遥感与地理信息系统研究所", "country": "中国" } ], "ds_managers": [ { "true_name": "任华忠", "email": "renhuazhong@pku.edu.cn", "work_for": "北京大学遥感与地理信息系统研究所", "country": "中国" } ], "category": "遥感及产品" }