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Inter Comparisons of Global Precipitation Datasets in Global River Basins
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Ping-wei JIN1, Hong-li ZHANG2, Hao LI1, Chao WANG3, Jun HUANG1
Water Resources and Power | 2023, 41(5) : 10 - 14
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Water Resources and Power | 2023, 41(5): 10-14
• HYDROLOGY, WATER RESOURCES AND ENVIRONMENT •
Inter Comparisons of Global Precipitation Datasets in Global River Basins
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Ping-wei JIN1, Hong-li ZHANG2, Hao LI1, Chao WANG3, Jun HUANG1
Affiliations
  • 1.Soil and Water Conservation Monitoring Center of Pearl River Basin, Pearl River Water Resources Commission, Guangzhou 510611, China
  • 2.The Center of Soil and Water Conservation Monitoring, Ministry of Water Resources, Beijing 100055, China
  • 3.Water Planning and Design Limited, Jinan 250000, China
Published: 2023-05-25 doi: 10.20040/j.cnki.1000-7709.2023.20221891
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In view of the differences between national, continental and global scale precipitation data sets, there are many studies, but the reliability of data sets on river basin scale is rarely considered. To this end, the maximum/minimum difference percentage method and TFPM-MK trend analysis method were used to study and evaluate the differences between 12 widely used precipitation data sets in precipitation estimation and change trends in 6 292 basins around the world. The results show that there are large differences between precipitation data sets. There are 2 469 basins with an annual average precipitation difference of more than 500 mm/a, covering an area of 4 419.6×104km2, mainly distributed in Greenland, Africa, Oceania and West Asia. The existing data products cannot reach an agreement on the precipitation trend of all basins, and it is difficult to provide a reasonable scientific basis for the formulation and implementation of effective policies to ensure water conservancy and power generation, domestic water supply, flood control and early warning in the basin.

global precipitation  /  river basins  /  satellite observations  /  reanalysis observations
Ping-wei JIN, Hong-li ZHANG, Hao LI, Chao WANG, Jun HUANG. Inter Comparisons of Global Precipitation Datasets in Global River Basins[J]. Water Resources and Power, 2023 , 41 (5) : 10 -14 . DOI: 10.20040/j.cnki.1000-7709.2023.20221891
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221891
  • Receive Date：2022-09-11
  • Online Date：2026-01-28
  • Published：2023-05-25
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History
  • Received：2022-09-11
  • Revised：2022-11-05
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Affiliations
    1.Soil and Water Conservation Monitoring Center of Pearl River Basin, Pearl River Water Resources Commission, Guangzhou 510611, China
    2.The Center of Soil and Water Conservation Monitoring, Ministry of Water Resources, Beijing 100055, China
    3.Water Planning and Design Limited, Jinan 250000, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20221891
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
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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