该数据集包含了2025年5月1日至2025年12月1日的黑河流域地表过程综合观测网下游混合林站物候图片。站点位于内蒙古额济纳旗四道桥，下垫面是胡杨与柽柳。观测点的经纬度是101.1335E, 41.9903N，海拔874 m。站点拍摄物候图片自7:00至19:00，每2小时拍摄一次。对于物候期的计算，首先，根据感兴趣区计算物候指标，如相对绿度指数(GCC, Green Chromatic Coordinate公式为GCC=G/(R+G+B), R、G、B为图像红、绿、蓝三通道像元值)。然后对数据进行质量控制、无效值填充和滤波平滑。最后根据生长曲线拟合确定关键物候期参数，如生长季起始日、顶峰、生长季结束日等。本数据集为该站点2025年物候图片。。
\n黑河流域地表过程综合观测网或站点信息请参考Liu et al. (2018)。
", "ds_source": "黑河流域地表过程综合观测网
", "ds_process_way": "", "ds_quality": "", "ds_acq_start_time": "2025-05-01 00:00:00", "ds_acq_end_time": "2025-12-01 00:00:00", "ds_acq_place": "黑河流域地表过程综合观测网下游混合林站", "ds_acq_lon_east": 101.13333333333334, "ds_acq_lat_south": 41.99027777777778, "ds_acq_lon_west": 101.13333333333334, "ds_acq_lat_north": 41.99027777777778, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 402324772, "ds_files_count": 0, "ds_format": "*jpg", "ds_space_res": "8m*4.5m", "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "acf7b9e6-45eb-4f55-98bf-2a7da0084b22.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": "", "organization_id": "7314e349-6d56-45d3-93c1-5068a74cdfde", "ds_serv_man": "", "ds_serv_phone": "", "ds_serv_mail": "", "doi_value": "", "subject_codes": [ "170.15", "170.45", "170.55" ], "quality_level": 0, "publish_time": "2026-07-07 18:41:19", "last_updated": "2026-07-07 18:55:05", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.heihe.db7624.2026", "i18n": { "en": { "title": "Dataset of Heihe integrated observatory network (Phenology camera observation data set of Mixed forest station, 2025)", "ds_format": "*jpg", "ds_source": "in the upper stream of the Heihe integrated observatory network", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "This dataset contains phenological camera observation data of the mixed forest station in the upstream reaches of Heihe integrated observatory network from May 1 to December 1 in 2025. The site (101.1335° E, 41.9903° N) was located in the Sidaoqiao County, in Ejina Banner in Inner Mongolia Autonomous Region . The elevation is 874 m. The phenology camera pictures were stored two-hour intervals from 7:00 to 19:00. For the calculation of the phenology, firstly, the phenological index needs to be calculated according to the region of interest. Such as, the relative greenness index (GCC, Green Chromatic Coordinate, calculated by GCC=G/(R+G+B)). Then, controlling the quality of data, filling the invalid value and filtering smoothing are performed. Finally, the key phenological parameters are determined according to the growth curve fitting, such as the growth season start date, peak, growth season end, etc. This data set includes the phenology camera pictures in 2025.\r\nPlease refer to Liu et al. (2018) for sites information in the Citation section.", "ds_time_res": "", "ds_acq_place": "Mixed forest station downstream of the comprehensive observation network for surface processes in the Heihe River Basin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "", "ds_ref_instruction": "" } }, "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": [ "黑河流域地表过程综合观测网", "物候期", "相对绿度指数", "覆盖度" ], "ds_subject_tags": [ "大气科学", "地理学", "水文学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域", "上游寒区水文试验区", "混合林站" ], "ds_time_tags": [ 2025 ], "ds_contributors": [ { "true_name": "刘绍民", "email": "smliu@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" }, { "true_name": "车涛", "email": "chetao@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "屈永华", "email": "qyh@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" }, { "true_name": "徐自为", "email": "xuzw@bnu.edu.cn", "work_for": "北京师范大学地理学与遥感科学学院", "country": "中国" }, { "true_name": "谭俊磊", "email": "tanjunlei@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "张阳", "email": "zhangyang@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "任志国", "email": "rzgehu@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": "刘绍民", "email": "smliu@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" }, { "true_name": "车涛", "email": "chetao@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "屈永华", "email": "qyh@bnu.edu.cn", "work_for": "北京师范大学", "country": "中国" }, { "true_name": "徐自为", "email": "xuzw@bnu.edu.cn", "work_for": "北京师范大学地理学与遥感科学学院", "country": "中国" }, { "true_name": "谭俊磊", "email": "tanjunlei@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "张阳", "email": "zhangyang@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" }, { "true_name": "任志国", "email": "rzgehu@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": "徐自为", "email": "xuzw@bnu.edu.cn", "work_for": "北京师范大学地理学与遥感科学学院", "country": "中国" } ], "category": "生态" }