Derivation and Validation of a Theoretical Canopy Interception Model Based on Raindrop Microphysical Processes
Abstract Canopy interception represents the initial phase of rainfall redistribution across the land surface and is crucial for hydrological and ecological processes. This study proposes a novel theoretical model of canopy interception based on the microphysical processes of raindrops within the can...
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| Format: | Article |
| Language: | English |
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Wiley
2025-06-01
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| Series: | Water Resources Research |
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| Online Access: | https://doi.org/10.1029/2024WR038296 |
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| author | Zixi Li Fuqiang Tian |
| author_facet | Zixi Li Fuqiang Tian |
| author_sort | Zixi Li |
| collection | DOAJ |
| description | Abstract Canopy interception represents the initial phase of rainfall redistribution across the land surface and is crucial for hydrological and ecological processes. This study proposes a novel theoretical model of canopy interception based on the microphysical processes of raindrops within the canopy. The model incorporates physical parameters pertinent to canopy characteristics, such as the attachment retention coefficient and the pinning proportion coefficient. Both the basic and simplified model forms of canopy interception during rainfall events have been derived. Further elaborations of the model account for stem flow, the surface evaporation during rainfall, and other conditions. The model parameters are clearly defined, physically meaningful, and can be directly estimated using detailed canopy structure data. This estimation process is now more feasible than ever due to advances in high‐resolution lidar technology. Simulated rainfall experiments were conducted to validate the movement patterns of raindrops in the canopy, establish model parameters, validate the models' accuracy, and compare the applicability of the two model forms. |
| format | Article |
| id | doaj-art-eeeaee40064d487ca5c453bc6810dcfd |
| institution | Kabale University |
| issn | 0043-1397 1944-7973 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Water Resources Research |
| spelling | doaj-art-eeeaee40064d487ca5c453bc6810dcfd2025-08-20T03:31:27ZengWileyWater Resources Research0043-13971944-79732025-06-01616n/an/a10.1029/2024WR038296Derivation and Validation of a Theoretical Canopy Interception Model Based on Raindrop Microphysical ProcessesZixi Li0Fuqiang Tian1Department of Hydraulic Engineering State Key Laboratory of Hydroscience and Engineering Tsinghua University Beijing ChinaDepartment of Hydraulic Engineering State Key Laboratory of Hydroscience and Engineering Tsinghua University Beijing ChinaAbstract Canopy interception represents the initial phase of rainfall redistribution across the land surface and is crucial for hydrological and ecological processes. This study proposes a novel theoretical model of canopy interception based on the microphysical processes of raindrops within the canopy. The model incorporates physical parameters pertinent to canopy characteristics, such as the attachment retention coefficient and the pinning proportion coefficient. Both the basic and simplified model forms of canopy interception during rainfall events have been derived. Further elaborations of the model account for stem flow, the surface evaporation during rainfall, and other conditions. The model parameters are clearly defined, physically meaningful, and can be directly estimated using detailed canopy structure data. This estimation process is now more feasible than ever due to advances in high‐resolution lidar technology. Simulated rainfall experiments were conducted to validate the movement patterns of raindrops in the canopy, establish model parameters, validate the models' accuracy, and compare the applicability of the two model forms.https://doi.org/10.1029/2024WR038296canopy interceptionmicrophysical processesmodel derivation and extensionmodel parameterssimulated rainfall experiments |
| spellingShingle | Zixi Li Fuqiang Tian Derivation and Validation of a Theoretical Canopy Interception Model Based on Raindrop Microphysical Processes Water Resources Research canopy interception microphysical processes model derivation and extension model parameters simulated rainfall experiments |
| title | Derivation and Validation of a Theoretical Canopy Interception Model Based on Raindrop Microphysical Processes |
| title_full | Derivation and Validation of a Theoretical Canopy Interception Model Based on Raindrop Microphysical Processes |
| title_fullStr | Derivation and Validation of a Theoretical Canopy Interception Model Based on Raindrop Microphysical Processes |
| title_full_unstemmed | Derivation and Validation of a Theoretical Canopy Interception Model Based on Raindrop Microphysical Processes |
| title_short | Derivation and Validation of a Theoretical Canopy Interception Model Based on Raindrop Microphysical Processes |
| title_sort | derivation and validation of a theoretical canopy interception model based on raindrop microphysical processes |
| topic | canopy interception microphysical processes model derivation and extension model parameters simulated rainfall experiments |
| url | https://doi.org/10.1029/2024WR038296 |
| work_keys_str_mv | AT zixili derivationandvalidationofatheoreticalcanopyinterceptionmodelbasedonraindropmicrophysicalprocesses AT fuqiangtian derivationandvalidationofatheoreticalcanopyinterceptionmodelbasedonraindropmicrophysicalprocesses |