{"id":"a96808c6-ce84-4724-b3c8-f7874b363b6a","title":"黑河流域ENVISAT ASAR遥感影像数据集（2007-2009）","title_en":"The ENVISAT ASAR image dataset of the Heihe river basin (2007-2009)","serial":"黑河流域","user_limit":"本数据由“龙计划”二期项目Key Eco-Hydrological Parameters Retrieval and Land Data Assimilation System Development in a Typical Inland River Basin of China's Arid Region（中国干旱地区典型内陆河流域关键生态－水文参数的反演与陆面同化系统研究，项目编号：5322）和Techniques for Deriving Land Cover and Earth Surface Deformation Information from Polarimetric Sar Interferometry（极化干涉SAR土地覆盖和地表形变信息提取技术，项目编号：5344）收集，用户使用数据应声明数据的原始来源。","instructions":"文件命名：数据以栅格N1存储；以文件夹形式存放按模式分为“APP”，“GM”，“IMP”，“WSM”，其中APP文件名称“ASA_APP_1PNBEI20080321_150145_000000182067_00054_31671_3875”，GM文件名称“ASA_GM1_1CNPDE20080124_033518_000000782065_00233_30848_9750”，IMP文件“ASA_IMP_1PNDPA20090619_150139_000000162080_00054_38184_9339”，WSM文件名称“ASA_WSM_1CNPDE20051224_151058_000000672043_00369_19962_5554”\n数据读取：可以Arcgis、Envi等遥感软件打开读取，以栅格影像表达。","description":"先进合成孔径雷达ASAR（Advanced Synthetic Aperture Radar）是搭载在ENVISAT卫星上的合成孔径雷达传感器，工作在C波段，波长为5.6厘米，具有多极化、可变观测角度和宽幅成像等特点。 黑河流域的ENVISAT ASAR遥感数据集主要通过中欧“龙计划”项目获取，数据以Image模式、交叉极化（Alternating Polarisation）模式与宽幅模式为主，空间分辨率为30米。\n黑河流域目前共有ENVISAT ASAR数据404景，其中APP模式82景，IMP模式7景,WSM模式315 景。获取时间分别为：APP可选择极化模式，时间范围为2007-08-15至2007-12-23，2008-01-02至2008-12-20，2009-02-15至2009-09-06；IMP成像模式，时间范围为2009-06-19至2009-07-12；WSM宽幅模式，时间范围为2005-12-05至2005-12-31,2006-01-06至2006-12-31，2007-01-01至2007-12-30，2008-01-01至2008-11-28，2009-03-13至2009-05-22。\n产品级别为L1B级，未经过几何校正，为振幅数据。","doi":"","projection":"4326","language":"zh","share_type":"offline","east":100.5,"west":100.2,"south":38.4,"north":40.0,"scale":null,"crs":null,"filesize":44963.8,"share_policy":"b","ts_created":"2014-01-17T17:47:47+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-19T21:03:26.451984+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":"栅格","project":[10,11,15],"specials":["4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[36,35,165,85,37],"subtopics":{"metadata":"a96808c6-ce84-4724-b3c8-f7874b363b6a","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":10234}