{
    "created": "2025-03-12 17:17:01",
    "updated": "2026-05-09 12:23:18",
    "id": "a804e6d7-9056-428c-987d-17e53351054e",
    "version": 4,
    "ds_topic": null,
    "title_cn": "2015-2019年咸海流域500米地表反照率8天合成数据集",
    "title_en": "",
    "ds_abstract": "<p>本数据集包括2015、2016、2017、2018、2019年5年的咸海流域的反照率（Albedo）数据。空间分辨率为500米，时间分辨率为8天。</p>",
    "ds_source": "<p>来源于美国国家航空航天局中分辨率成像光谱仪，提取MCD43A1产品中的\"BRDF_Albedo_Parameters_nn. Num_Parameters_01\"，“BRDF_Albedo_Parameters_nn. Num_Parameters_02“和“BRDF_Albedo_Parameters_nn. Num_Parameters_03”波段。</p>",
    "ds_process_way": "<p>参考MODIS官方算法，计算得出白天反照率和夜间反照率，乘以比例因子0.001。</p>",
    "ds_quality": "<p>空间分辨率为500m×500m，时间分辨率为8天，每个像元的值为八天地表反照率的平均值。</p>",
    "ds_acq_start_time": "2015-01-01 00:00:00",
    "ds_acq_end_time": "2019-12-31 00:00:00",
    "ds_acq_place": "咸海流域",
    "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": "离线申请",
    "ds_total_size": 1974173074,
    "ds_files_count": 5,
    "ds_format": "tif",
    "ds_space_res": "500",
    "ds_time_res": "8天",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "a804e6d7-9056-428c-987d-17e53351054e.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": [
        "170.45"
    ],
    "quality_level": 1,
    "publish_time": "2025-03-25 15:47:34",
    "first_publish_time": null,
    "last_updated": "2025-03-25 15:47:34",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "33110.11.ariddc.00316",
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "2015年咸海流域500米地表反照率8天合成数据集.rar",
            "size": 235645778,
            "is_dir": false
        },
        {
            "name": "2016年咸海流域500米地表反照率8天合成数据集.rar",
            "size": 224344506,
            "is_dir": false
        },
        {
            "name": "2017年咸海流域500米地表反照率8天合成数据集.rar",
            "size": 220279544,
            "is_dir": false
        },
        {
            "name": "2018年咸海流域500米地表反照率8天合成数据集.rar",
            "size": 216584726,
            "is_dir": false
        },
        {
            "name": "2019年咸海流域500米地表反照率8天合成数据集.rar",
            "size": 1077318520,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "地表反照率"
    ],
    "ds_subject_tags": [
        "地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "咸海"
    ],
    "ds_time_tags": [
        2015,
        2016,
        2017,
        2018,
        2019
    ],
    "ds_contributors": [
        "刘铁",
        "钱静"
    ],
    "ds_meta_authors": [
        "刘铁",
        "钱静"
    ],
    "ds_managers": [
        "刘铁"
    ],
    "category": "中分辨率成像光谱仪"
}