{
    "created": "2025-03-12 14:24:40",
    "updated": "2026-05-09 12:46:03",
    "id": "74ae0e2b-1c15-46a3-bd20-146e40ee55a9",
    "version": 3,
    "ds_topic": null,
    "title_cn": "2019、2020年咸海流域1km归一化植被指数月均数据集",
    "title_en": "",
    "ds_abstract": "<p>本数据集是2019年和2020年咸海流域NDVI月均值数据。提取美国国家航空航天局中分辨率成像光谱仪MOD13A2产品第一波段作为归一化植被指数数据，乘以比例因子0.0001，叠加咸海流域边界数据，裁切后得到咸海流域范围内的NDVI月均值数据。每月一期，一年12期，2019-2020年共24张栅格图像。空间分辨率为1000m×1000m，时间分辨率为1个月，投影坐标为GCS_WGS_1984，每个像元的值为每个月的归一化植被指数的平均值。</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MOD13A2产品第一波段。Modis影像数据：https://ladsweb.modaps.eosdis.nasa.gov/</p>",
    "ds_process_way": "<p>提取MOD13A2产品第一波段作为叶面积指数数据，乘以比例因子0.0001。</p>",
    "ds_quality": "<p>空间分辨率为1000m×1000m，时间分辨率为1个月，每个像元的值为每个月归一化植被指数的平均值，投影坐标为GCS_WGS_1984。</p>",
    "ds_acq_start_time": "2019-01-01 00:00:00",
    "ds_acq_end_time": "2020-12-31 00:00:00",
    "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": "离线申请",
    "ds_total_size": 99117827,
    "ds_files_count": 2,
    "ds_format": "tif",
    "ds_space_res": "1000",
    "ds_time_res": "月",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "74ae0e2b-1c15-46a3-bd20-146e40ee55a9.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": "2025-03-17 19:45:36",
    "first_publish_time": null,
    "last_updated": "2025-03-22 19:01:06",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "33110.11.ariddc.00313",
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "2019（月数据）.rar",
            "size": 49922601,
            "is_dir": false
        },
        {
            "name": "2020（月数据）.rar",
            "size": 49195226,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "归一化植被指数",
        "NDVI"
    ],
    "ds_subject_tags": [
        "地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "咸海"
    ],
    "ds_time_tags": [
        2019,
        2020
    ],
    "ds_contributors": [
        "钱静",
        "刘铁"
    ],
    "ds_meta_authors": [
        "钱静",
        "陈朝亮"
    ],
    "ds_managers": [
        "刘铁"
    ],
    "category": "中分辨率成像光谱仪"
}