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Rainfall observations derived from 76 ground rainfall gauges from January 1, 2018 to December 31, 2020 were used to evaluate the accuracy of IMERG Final Run (IMERG_FR) and IMERG Early Run (IMERG_ER) in IMERG (Integrated Multi-satellitE Retrievals for GPM) products over the small Sancha River basin in Guizhou Province. This study aimed to explore the precipitation detection capacity of IMERG_FR and IMERG_ER on different time scales. Metrics for assessment include correlation coefficient (CCC), relative bias (RRB), root-mean-squared error (RRMSE), probability of detection (PPOD), false alarm ratio (FFAR), critical success index (CCSI). The performance of IMERG was assessed at different time scale with different precipitation thresholds. The results show that the IMERG_FR and IMERG_ER have a certain precipitation detection ability in the small basin on the whole, and it still needs to improve the accuracy of IMERG products in estimating precipitation intensity.

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以贵州省三岔河流域为研究区域,利用2018年1月1日~2020年12月31日期间的76个气象站观测数据评估全球降水观测计划多卫星降水产品IMERG(Integrated Multi-satellitE Retrievals for GPM)的雨量站订正产品IMERG Final Run(IMERG_FR)和准实时产品IMERG Early Run(IMERG_ER)在岩溶地貌的小流域的降水观测准确度,通过设定不同的降水阈值评估IMERG两种降水产品IMERG_FR和IMERG_ER对不同降水量区间的探测能力,评估指标包括相关系数(CCC)、相对偏差(RRB)、均方根误差(RRMSE)、探测率(PPOD)、临界成功指数(CCSI)和误报率(FFAR)。结果表明,在整体上,IMERG_FR和IMERG_ER在该小型流域有一定降水探测能力,对降水强度的估算精度还存在提升空间。

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曾莉萍(1984-),女,硕士、高级工程师,研究方向为强对流天气分析及预报研究、数值模式检验、专业气象服务,E-mail:

, authorsList=曾莉萍, 梁振清, 陈生, 李峙, 朱慧琴)}, authors=[Author(id=1223193061035987184, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1223193058372604073, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=163.fryh.kl@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1223193061124067575, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1223193058372604073, authorId=1223193061035987184, language=EN, stringName=Li-ping ZENG, firstName=Li-ping, middleName=null, lastName=ZENG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.Meteorological Service Center of Guizhou Province, Guiyang 550001, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1223193061203759354, tenantId=1146029695717560320, journalId=1205116964453384197, articleId=1223193058372604073, authorId=1223193061035987184, language=CN, stringName=曾莉萍, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.贵州省气象服务中心,贵州 贵阳 550001, bio={"content":"

曾莉萍(1984-),女,硕士、高级工程师,研究方向为强对流天气分析及预报研究、数值模式检验、专业气象服务,E-mail:

"}, bioImg=null, bioContent=

曾莉萍(1984-),女,硕士、高级工程师,研究方向为强对流天气分析及预报研究、数值模式检验、专业气象服务,E-mail:

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IMERG降水卫星在贵州省三岔河流域降水预报误差评估中的应用
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曾莉萍 1 , 梁振清 2 , 陈生 3a, 3b , 李峙 4a, 4b , 朱慧琴 4a, 4b
水电能源科学 | 水文水资源与环境 2023,41(1): 10-13
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水电能源科学 | 水文水资源与环境 2023, 41(1): 10-13
IMERG降水卫星在贵州省三岔河流域降水预报误差评估中的应用
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曾莉萍1 , 梁振清2, 陈生3a, 3b, 李峙4a, 4b, 朱慧琴4a, 4b
作者信息
  • 1.贵州省气象服务中心,贵州 贵阳 550001
  • 2.广西壮族自治区气象技术装备中心,广西 南宁 530022
  • 3.a.中国科学院西北生态环境资源研究院黑河遥感站,甘肃 兰州 730000
  • 3.b.中国科学院西北生态环境资源研究院甘肃省遥感重点实验室,甘肃 兰州 730000
  • 4.a.南宁师范大学地理科学与规划学院,广西 南宁 530001
  • 4.b.南宁师范大学北部湾环境演变与资源利用教育部重点实验室,广西 南宁 530001
  • 曾莉萍(1984-),女,硕士、高级工程师,研究方向为强对流天气分析及预报研究、数值模式检验、专业气象服务,E-mail:

Assessing Accuracy of IMERG in Precipitation Forecast of Sancha River Basin in Guizhou Province
Li-ping ZENG1 , Zhen-qing LIANG2, Sheng CHEN3a, 3b, Zhi LI4a, 4b, Hui-qin ZHU4a, 4b
Affiliations
  • 1.Meteorological Service Center of Guizhou Province, Guiyang 550001, China
  • 2.Meteorological Technology and Equipment Center of Guangxi Zhuang Autonomous Region, Nanning 530022, China
  • 3a.Heihe Remote Sensing Experimental Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
  • 3b.Key Laboratory of Remote Sensing of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
  • 4a.School of Geographic Science and Planning, Nanning Normal University, Nanning 530001, China
  • 4b.Key Laboratory of Beibu Gulf Environmental Evolution and Resource Utilization, Ministry of Education, Nanning Normal University, Nanning 530001, China
出版时间: 2023-01-25 doi: 10.20040/j.cnki.1000-7709.2023.20221310
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以贵州省三岔河流域为研究区域,利用2018年1月1日~2020年12月31日期间的76个气象站观测数据评估全球降水观测计划多卫星降水产品IMERG(Integrated Multi-satellitE Retrievals for GPM)的雨量站订正产品IMERG Final Run(IMERG_FR)和准实时产品IMERG Early Run(IMERG_ER)在岩溶地貌的小流域的降水观测准确度,通过设定不同的降水阈值评估IMERG两种降水产品IMERG_FR和IMERG_ER对不同降水量区间的探测能力,评估指标包括相关系数(CCC)、相对偏差(RRB)、均方根误差(RRMSE)、探测率(PPOD)、临界成功指数(CCSI)和误报率(FFAR)。结果表明,在整体上,IMERG_FR和IMERG_ER在该小型流域有一定降水探测能力,对降水强度的估算精度还存在提升空间。

GPM  /  IMERG  /  卫星降水观测  /  三岔河流域

Rainfall observations derived from 76 ground rainfall gauges from January 1, 2018 to December 31, 2020 were used to evaluate the accuracy of IMERG Final Run (IMERG_FR) and IMERG Early Run (IMERG_ER) in IMERG (Integrated Multi-satellitE Retrievals for GPM) products over the small Sancha River basin in Guizhou Province. This study aimed to explore the precipitation detection capacity of IMERG_FR and IMERG_ER on different time scales. Metrics for assessment include correlation coefficient (CCC), relative bias (RRB), root-mean-squared error (RRMSE), probability of detection (PPOD), false alarm ratio (FFAR), critical success index (CCSI). The performance of IMERG was assessed at different time scale with different precipitation thresholds. The results show that the IMERG_FR and IMERG_ER have a certain precipitation detection ability in the small basin on the whole, and it still needs to improve the accuracy of IMERG products in estimating precipitation intensity.

GPM  /  IMERG  /  satellite precipitation observation  /  Sancha river basin in Guizhou
曾莉萍, 梁振清, 陈生, 李峙, 朱慧琴. IMERG降水卫星在贵州省三岔河流域降水预报误差评估中的应用. 水电能源科学, 2023 , 41 (1) : 10 -13 . DOI: 10.20040/j.cnki.1000-7709.2023.20221310
Li-ping ZENG, Zhen-qing LIANG, Sheng CHEN, Zhi LI, Hui-qin ZHU. Assessing Accuracy of IMERG in Precipitation Forecast of Sancha River Basin in Guizhou Province[J]. Water Resources and Power, 2023 , 41 (1) : 10 -13 . DOI: 10.20040/j.cnki.1000-7709.2023.20221310
  • 国家自然科学基金项目(41875182)
  • 北部湾环境演变与资源利用教育部重点实验室(南宁师范大学)开发基金(NNNU-KLOP-K2103)
2023年第41卷第1期
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doi: 10.20040/j.cnki.1000-7709.2023.20221310
  • 接收时间:2022-06-24
  • 首发时间:2026-01-28
  • 出版时间:2023-01-25
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  • 收稿日期:2022-06-24
  • 修回日期:2022-08-03
基金
国家自然科学基金项目(41875182)
北部湾环境演变与资源利用教育部重点实验室(南宁师范大学)开发基金(NNNU-KLOP-K2103)
作者信息
    1.贵州省气象服务中心,贵州 贵阳 550001
    2.广西壮族自治区气象技术装备中心,广西 南宁 530022
    3.a.中国科学院西北生态环境资源研究院黑河遥感站,甘肃 兰州 730000
    3.b.中国科学院西北生态环境资源研究院甘肃省遥感重点实验室,甘肃 兰州 730000
    4.a.南宁师范大学地理科学与规划学院,广西 南宁 530001
    4.b.南宁师范大学北部湾环境演变与资源利用教育部重点实验室,广西 南宁 530001
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https://castjournals.cast.org.cn/joweb/sdnykx/CN/10.20040/j.cnki.1000-7709.2023.20221310
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
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Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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