Land‐Sea Contrast of Global Hourly Precipitation Intensity in ERA5: Dominant Role of Convective Precipitation
Abstract Satellite estimation shows that, contrary to daily precipitation intensity whose heavier centers are almost all located over the moisture‐rich oceans, a large portion of the heavier hourly precipitation intensity (HPI) centers are located over the moisture‐limited mainland. However, the dir...
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| Format: | Article |
| Language: | English |
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Wiley
2025-05-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2025GL114733 |
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| author | Pengsheng Li Xiao‐Feng Li Jingjing Yu Song Yang |
| author_facet | Pengsheng Li Xiao‐Feng Li Jingjing Yu Song Yang |
| author_sort | Pengsheng Li |
| collection | DOAJ |
| description | Abstract Satellite estimation shows that, contrary to daily precipitation intensity whose heavier centers are almost all located over the moisture‐rich oceans, a large portion of the heavier hourly precipitation intensity (HPI) centers are located over the moisture‐limited mainland. However, the direct cause of this inverted land‐sea contrast (ILSC) of HPI is still unclear. We find the ERA5 data generally reproduces the above ILSC pattern, although its heavier HPI centers are generally weaker than CMORPH data. Then we find the distribution of convective precipitation (CP) plays a key role based on ERA5 data. The CP intensity centers match well with that of the hourly total precipitation over land areas, which are generally greater than those over ocean; contrarily, the large‐scale precipitation intensity centers are mainly located in ocean. This study provides important clues for establishing physical interpretations in the future, but further evaluations based on more direct observations are still needed. |
| format | Article |
| id | doaj-art-c194f99371dd40eeb5e0726f8ef57dbf |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-c194f99371dd40eeb5e0726f8ef57dbf2025-08-20T03:10:31ZengWileyGeophysical Research Letters0094-82761944-80072025-05-015210n/an/a10.1029/2025GL114733Land‐Sea Contrast of Global Hourly Precipitation Intensity in ERA5: Dominant Role of Convective PrecipitationPengsheng Li0Xiao‐Feng Li1Jingjing Yu2Song Yang3School of Atmospheric Sciences Sun Yat‐sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) Zhuhai ChinaSchool of Atmospheric Sciences Sun Yat‐sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) Zhuhai ChinaSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai) Zhuhai ChinaSchool of Atmospheric Sciences Sun Yat‐sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) Zhuhai ChinaAbstract Satellite estimation shows that, contrary to daily precipitation intensity whose heavier centers are almost all located over the moisture‐rich oceans, a large portion of the heavier hourly precipitation intensity (HPI) centers are located over the moisture‐limited mainland. However, the direct cause of this inverted land‐sea contrast (ILSC) of HPI is still unclear. We find the ERA5 data generally reproduces the above ILSC pattern, although its heavier HPI centers are generally weaker than CMORPH data. Then we find the distribution of convective precipitation (CP) plays a key role based on ERA5 data. The CP intensity centers match well with that of the hourly total precipitation over land areas, which are generally greater than those over ocean; contrarily, the large‐scale precipitation intensity centers are mainly located in ocean. This study provides important clues for establishing physical interpretations in the future, but further evaluations based on more direct observations are still needed.https://doi.org/10.1029/2025GL114733hourly precipitationconvective precipitationlarge‐scale precipitationglobal |
| spellingShingle | Pengsheng Li Xiao‐Feng Li Jingjing Yu Song Yang Land‐Sea Contrast of Global Hourly Precipitation Intensity in ERA5: Dominant Role of Convective Precipitation Geophysical Research Letters hourly precipitation convective precipitation large‐scale precipitation global |
| title | Land‐Sea Contrast of Global Hourly Precipitation Intensity in ERA5: Dominant Role of Convective Precipitation |
| title_full | Land‐Sea Contrast of Global Hourly Precipitation Intensity in ERA5: Dominant Role of Convective Precipitation |
| title_fullStr | Land‐Sea Contrast of Global Hourly Precipitation Intensity in ERA5: Dominant Role of Convective Precipitation |
| title_full_unstemmed | Land‐Sea Contrast of Global Hourly Precipitation Intensity in ERA5: Dominant Role of Convective Precipitation |
| title_short | Land‐Sea Contrast of Global Hourly Precipitation Intensity in ERA5: Dominant Role of Convective Precipitation |
| title_sort | land sea contrast of global hourly precipitation intensity in era5 dominant role of convective precipitation |
| topic | hourly precipitation convective precipitation large‐scale precipitation global |
| url | https://doi.org/10.1029/2025GL114733 |
| work_keys_str_mv | AT pengshengli landseacontrastofglobalhourlyprecipitationintensityinera5dominantroleofconvectiveprecipitation AT xiaofengli landseacontrastofglobalhourlyprecipitationintensityinera5dominantroleofconvectiveprecipitation AT jingjingyu landseacontrastofglobalhourlyprecipitationintensityinera5dominantroleofconvectiveprecipitation AT songyang landseacontrastofglobalhourlyprecipitationintensityinera5dominantroleofconvectiveprecipitation |