本数据以1998年-2017年TRMM 3B43数据为数据源，数据空间分辨率为25KM，时间分辨率为月，采用Python批量进行影像处理，提取降水数据，生成1998-2017年中巴经济走廊TRMM 3B43月降水数据产品。该数据可为中巴经济走廊区域科学研究提供基础数据支持。
", "ds_source": "TRMM 3B43数据为数据源，数据空间分辩率为25KM，时间分辨率为月；中巴经济走廊区域边界。
", "ds_process_way": "（1）提取HDF的子数据集。TRMM_3B43_V7数据包括三个子数据集，分别是precipitation，relativeError，gaugeRelativeWeighting，提取降水子数据集，即precipitation。\n（2）影像旋转和校正。默认提取的子数据集影像进行校正，首先进行-90°旋转，然后根据4个角点和正确的角点坐标进行变换。\n（3）定义投影。默认提取和转换的影像无投影，定义投影为GCS_WGS_1984。\n（4）单位换算。TRMM_3B43_V7数据单位为毫米/小时，将平均小时降雨量换算成月降雨量毫米/月。\n（5）HDF格式转换为GEOTIFF格式。\n（6）影像裁剪。利用中巴经济走廊区域边界，批量裁剪，生成中巴经济走廊TRMM 3B43月降水数据产品。
", "ds_quality": "与源数据质量相同；数据集内容包括：月降水
", "ds_acq_start_time": "1998-01-01 00:00:00", "ds_acq_end_time": "2017-08-31 00:00:00", "ds_acq_place": "中巴经济走廊区域", "ds_acq_lon_east": 79.86666666666666, "ds_acq_lat_south": 23.75, "ds_acq_lon_west": 60.86638888888889, "ds_acq_lat_north": 41.416666666666664, "ds_acq_alt_low": -36.0, "ds_acq_alt_high": 8378.0, "ds_share_type": "apply-access", "ds_total_size": 22551368, "ds_files_count": 947, "ds_format": "GEOTIFF", "ds_space_res": "25000.0m", "ds_time_res": "月", "ds_coordinate": "WGS84", "ds_projection": "Geographic", "ds_thumbnail": "4b9504fa-0e34-47c9-a755-91d3f3253312.png", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": null, "ds_ref_instruction": null, "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "myf@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2020-03-26 09:10:03", "last_updated": "2023-08-23 17:02:24", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1317", "i18n": { "en": { "title": "TRMM b43 monthly precipitation data of China Pakistan Economic Corridor (1998-2017)", "ds_format": "", "ds_source": "TRMM 3b43 data is the data source, the spatial resolution of data is 25km, the time resolution is month, and the boundary of China Pakistan Economic Corridor region.
", "ds_quality": "Same quality as source data; data set includes: Monthly Precipitation
", "ds_ref_way": "", "ds_abstract": "This data is based on TRMM 3b43 data from 1998 to 2017. The spatial resolution of the data is 25km, and the time resolution is month. Python is used to process the image in batches, extract the precipitation data, and generate the precipitation data product of TRMM 3b43 of China Pakistan Economic Corridor from 1998 to 2017. The data can provide basic data support for the regional scientific research of China Pakistan Economic Corridor.
", "ds_time_res": "月", "ds_acq_place": "", "ds_space_res": "25000.0m", "ds_projection": "", "ds_process_way": "(1) Extract a subset of HDF. TRMM? 3b43? V7 data includes three sub data sets, namely precision, relativeerror, gauge relativeweighting, and extract precipitation sub data set, namely precision.\n(2) Image rotation and correction. The default extracted sub dataset image is corrected by first rotating - 90 ° and then transforming according to 4 corners and correct coordinates of corners.\n\n(3) Define the projection. By default, the extracted and converted image has no projection, which is defined as GCS ﹣ WGS ﹣ 1984.\n\n(4) Unit conversion. TRMM? 3b43? V7 data unit is mm / h, and the average hourly rainfall is converted into monthly rainfall mm / month.\n\n(5) HDF format converted to geoiff format.\n\n(6) Image clipping. The TRMM 3b43 monthly precipitation data product is generated by using the regional boundary of China Pakistan Economic Corridor and batch cutting.
", "ds_ref_instruction": "In order to respect intellectual property rights, protect the rights and interests of data authors, expand the services of data centers, and evaluate the application potential of data, data users are requested to clearly indicate the data source and data authors in the research results (including published papers, works, data products and unpublished research reports, data products, etc.) produced by using data. For data reprinted (secondary or multiple releases), the author must also indicate the source of the original data." } }, "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, "ds_topic_tags": [ "降水", "3B43", "TRMM" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "中巴经济走廊" ], "ds_time_tags": [ 1998, 2017 ], "ds_contributors": [ { "true_name": "冯克庭", "email": "fengkt@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_meta_authors": [ { "true_name": "冯克庭", "email": "fengkt@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_managers": [ { "true_name": "冯克庭", "email": "fengkt@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "category": "气象" }