{
    "created": "2025-05-08 19:25:38",
    "updated": "2026-05-09 12:47:19",
    "id": "f881ec3e-fcce-45f0-885c-46c0f97f8871",
    "version": 3,
    "ds_topic": null,
    "title_cn": "2016年中亚植被净初级生产力（NPP）栅格数据集",
    "title_en": "",
    "ds_abstract": "<p>2016年中亚植被净初级生产力（NPP）栅格数据集包含2016年12期数据，数据范围包括中亚哈萨克斯坦、吉尔吉斯斯坦、塔吉克斯坦、土库曼斯坦、乌兹别克斯坦，以及中国新疆范围，空间分辨率10000米，正弦投影。</p>",
    "ds_source": "<p>全球逐日NPP模拟数据产品。</p>",
    "ds_process_way": "<p>1、数据预处理：读取原始.img格式的逐日NPP数据，解析文件名中的年份与日序信息，标记无效值（如-9999）以避免干扰后续计算。\n2、时间维度聚合：按月份对逐日数据进行分组，通过求和或平均值生成逐月NPP数据。\n3、空间重采样：将原始约8公里（0.072727°）分辨率数据升尺度至10公里（约0.09°）。选择均值聚合（average）或双线性插值方法进行重采样，确保大尺度空间分布的一致性。\n4、结果输出与验证：将处理后的逐月数据保存为GeoTIFF或NetCDF格式，保留地理投影信息；通过统计分布对比（均值、标准差）或实测数据验证精度，确保数据合理性</p>",
    "ds_quality": "<p>空间分辨率10000米。</p>",
    "ds_acq_start_time": null,
    "ds_acq_end_time": null,
    "ds_acq_place": "",
    "ds_acq_lon_east": null,
    "ds_acq_lat_south": null,
    "ds_acq_lon_west": null,
    "ds_acq_lat_north": null,
    "ds_acq_alt_low": null,
    "ds_acq_alt_high": null,
    "ds_share_type": "在线下载",
    "ds_total_size": 3465756,
    "ds_files_count": 1,
    "ds_format": ".Geotiff格式",
    "ds_space_res": "10000",
    "ds_time_res": "每月",
    "ds_coordinate": "无",
    "ds_projection": "正弦投影",
    "ds_thumbnail": "f881ec3e-fcce-45f0-885c-46c0f97f8871.png",
    "ds_thumb_from": 0,
    "ds_ref_way": "",
    "paper_ref_way": "",
    "ds_ref_instruction": "",
    "ds_from_station": null,
    "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6",
    "doi_value": "",
    "subject_codes": [
        "170.40"
    ],
    "quality_level": 1,
    "publish_time": "2025-05-08 19:28:49",
    "first_publish_time": null,
    "last_updated": "2026-01-20 11:25:19",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "33110.11.ariddc.00515",
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "2016_CA_NPP.rar",
            "size": 3465756,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "净初级生产力",
        "NPP"
    ],
    "ds_subject_tags": [
        "地图学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "哈萨克斯坦",
        "塔吉克斯坦",
        "吉尔吉斯斯坦",
        "乌兹别克斯坦",
        "土库曼斯坦",
        "新疆"
    ],
    "ds_time_tags": [
        2016
    ],
    "ds_contributors": [
        "刘铁"
    ],
    "ds_meta_authors": [
        "李锦"
    ],
    "ds_managers": [
        "刘铁"
    ],
    "category": "遥感再分析数据"
}