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\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\n产品级别为L1B级，未经过几何校正，为振幅数据。
", "ds_source": "ENVISAT ASAR数据404景，其中APP模式82景，IMP模式7景,WSM模式315 景
", "ds_process_way": "产品级别为L1B级，未经过几何校正，为振幅数据
", "ds_quality": "本数据经过质量良好
", "ds_acq_start_time": "2007-01-01 00:00:00", "ds_acq_end_time": "2009-12-31 00:00:00", "ds_acq_place": "黑河流域", "ds_acq_lon_east": 100.5, "ds_acq_lat_south": 38.36638888888889, "ds_acq_lon_west": 100.19972222222222, "ds_acq_lat_north": 40.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 166591859656, "ds_files_count": 1367, "ds_format": "栅格", "ds_space_res": "30.0m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "8c1a1c70-0709-4abe-9a31-cf3fd6413a5a.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "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。", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2021-12-31 10:27:53", "last_updated": "2025-04-29 15:23:50", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.db0002.2021", "i18n": { "en": { "title": "ENVISAT ASAR remote sensing image data set of Heihe River Basin (2007-2009)", "ds_format": "Raster", "ds_source": "ENVISAT ASAR data 404 views, including 82 views in APP mode, 7 views in IMP mode, and 315 views in WSM mode
", "ds_quality": "This data has been of good quality
", "ds_ref_way": "", "ds_abstract": "Advanced Synthetic-aperture radar Radar (ASAR) is a Synthetic-aperture radar sensor mounted on ENVISAT satellite. It operates in C-band and has a wavelength of 5.6cm. It has the characteristics of multi polarization, variable observation angle and wide range imaging. The ENVISAT ASAR remote sensing dataset of the Heihe River Basin is mainly obtained through the China Europe \"Dragon Plan\" project. The data is mainly in Image mode, Alternating Polarization mode, and Broadband mode, with a spatial resolution of 30 meters
\nThere are currently 404 ENVISAT ASAR data views in the Heihe River Basin, including 82 views in APP mode, 7 views in IMP mode, and 315 views in WSM mode. The acquisition time is: APP can select polarization mode, with a time range of 2007-08-15 to 2007-12-232008-01-02 to 2008-12-202009-02-15 to 2009-09-06; IMP imaging mode, with a time range of 2009-06-19 to 2009-07-12; WSM wide mode, with a time range of 2005-12-05 to 2005-12-31, 2006-01-06 to 2006-12-31, 2007-01-01 to 2007-12-302008-01-01 to 2008-11-28, 2009-03-13 to 2009-05-22
\nThe product level is L1B, without geometric correction, and it is amplitude data
", "ds_time_res": "", "ds_acq_place": "Heihe River Basin", "ds_space_res": "30.0m", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "The product level is L1B, without geometric correction, and it is amplitude data
", "ds_ref_instruction": "This data is from the Key Eco-Hydrological Parameters Retrieval and Land Data Assimilation System Development in a Typical Inland River Basin of China's Arid Region of the \"Dragon Plan\" Phase II project, Project No. 5322 Collected with Techniques for Deriving Land Cover and Earth Surface Deformation Information from Polarimetric SAR Interferometry (Project No. 5344), users should declare the original source of the data when using it." } }, "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": [ "ENVISAT ASAR", "遥感影像", "APP模式", "IMP模式", "WSM模式" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域" ], "ds_time_tags": [ 2007, 2009 ], "ds_contributors": [ { "true_name": "王树果", "email": "sgwang@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": "胡宁科", "email": "changsheng0909@126.com", "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": "王树果", "email": "sgwang@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "遥感及产品" }