The Key Factors Controlling the Seasonality of Planetary Climate
Abstract Several different factors influence the seasonal cycle of a planet. This study uses a general circulation model and an energy balance model (EBM) to assess the parameters that govern the seasonal cycle. We define two metrics to describe the seasonal cycle, ϕs, the latitudinal shift of the m...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-10-01
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| Series: | AGU Advances |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2022AV000684 |
| _version_ | 1811234602775216128 |
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| author | Ilai Guendelman Yohai Kaspi |
| author_facet | Ilai Guendelman Yohai Kaspi |
| author_sort | Ilai Guendelman |
| collection | DOAJ |
| description | Abstract Several different factors influence the seasonal cycle of a planet. This study uses a general circulation model and an energy balance model (EBM) to assess the parameters that govern the seasonal cycle. We define two metrics to describe the seasonal cycle, ϕs, the latitudinal shift of the maximum temperature, and ΔT, the maximum seasonal temperature variation amplitude. We show that alongside the expected dependence on the obliquity and orbital period, where seasonality generally strengthens with an increase in these parameters, the seasonality depends in a nontrivial way on the rotation rate. While the seasonal amplitude decreases as the rotation rate slows down, the latitudinal shift, ϕs, shifts poleward. A similar result occurs in a diffusive EBM with increasing diffusivity. These results suggest that the influence of the rotation rate on the seasonal cycle stems from the effect of the rotation rate on the atmospheric heat transport. |
| first_indexed | 2024-04-12T11:38:59Z |
| format | Article |
| id | doaj.art-c022dc0fdcc846b69f61ee5a424343ed |
| institution | Directory Open Access Journal |
| issn | 2576-604X |
| language | English |
| last_indexed | 2024-04-12T11:38:59Z |
| publishDate | 2022-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | AGU Advances |
| spelling | doaj.art-c022dc0fdcc846b69f61ee5a424343ed2022-12-22T03:34:44ZengWileyAGU Advances2576-604X2022-10-0135n/an/a10.1029/2022AV000684The Key Factors Controlling the Seasonality of Planetary ClimateIlai Guendelman0Yohai Kaspi1Earth and Planetary Department Weizmann Institute of Science Rehovot IsraelEarth and Planetary Department Weizmann Institute of Science Rehovot IsraelAbstract Several different factors influence the seasonal cycle of a planet. This study uses a general circulation model and an energy balance model (EBM) to assess the parameters that govern the seasonal cycle. We define two metrics to describe the seasonal cycle, ϕs, the latitudinal shift of the maximum temperature, and ΔT, the maximum seasonal temperature variation amplitude. We show that alongside the expected dependence on the obliquity and orbital period, where seasonality generally strengthens with an increase in these parameters, the seasonality depends in a nontrivial way on the rotation rate. While the seasonal amplitude decreases as the rotation rate slows down, the latitudinal shift, ϕs, shifts poleward. A similar result occurs in a diffusive EBM with increasing diffusivity. These results suggest that the influence of the rotation rate on the seasonal cycle stems from the effect of the rotation rate on the atmospheric heat transport.https://doi.org/10.1029/2022AV000684planetary atmospheresatmospheric dynamicsatmospheric heat transport |
| spellingShingle | Ilai Guendelman Yohai Kaspi The Key Factors Controlling the Seasonality of Planetary Climate AGU Advances planetary atmospheres atmospheric dynamics atmospheric heat transport |
| title | The Key Factors Controlling the Seasonality of Planetary Climate |
| title_full | The Key Factors Controlling the Seasonality of Planetary Climate |
| title_fullStr | The Key Factors Controlling the Seasonality of Planetary Climate |
| title_full_unstemmed | The Key Factors Controlling the Seasonality of Planetary Climate |
| title_short | The Key Factors Controlling the Seasonality of Planetary Climate |
| title_sort | key factors controlling the seasonality of planetary climate |
| topic | planetary atmospheres atmospheric dynamics atmospheric heat transport |
| url | https://doi.org/10.1029/2022AV000684 |
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