Exploring the radiative effects of precipitation on Arctic amplification and energy budget

While, in theory, precipitation impacts the Earth's radiation budget, the radiative effects of precipitation are poorly understood and excluded from most climate models. Hence, a new study examined the role of REP in the global and regional energy budgets and hydrological cycles, finding that REP significantly contributes to temperature and precipitation variations at different geographical scales, especially in the Arctic warming.

Dr. Michibata employed three sub-versions of the Japanese GCM, MIROC6, incorporating different precipitation and radiative calculation treatments. These sub-versions included diagnostic precipitation without REP , prognostic precipitation without REP , and prognostic precipitation with REP , to quantify the influence of precipitating particles on the radiation budgets and hydrological cycles at both global and regional scales.

In contrast, the temperature variations over tropical and subtropical regions were found to be relatively small. In fact, the three-dimensional radiation budget analysis showed that precipitation change was the main effect of REP in the tropics, as opposed to the significant temperature change in the polar regions.

Strong precipitation may cause natural disasters, such as floodings or landslides. Global climate models are required to forecast the frequency of these extreme events, which is expected to change as ...

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Exploring the radiative effects of precipitation on Arctic amplification and energy budgetOne of the key metrics for climate modeling is radiative forcing. Most climate models, including the general circulation models (GCMs), focus on the effects of different atmospheric factors on radiative forcing.
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Earth from space: Trio of ringed ice caps look otherworldly on Russian Arctic islandsHarry is a U.K.-based senior staff writer at Live Science. He studied marine biology at the University of Exeter before training to become a journalist. He covers a wide range of topics including space exploration, planetary science, space weather, climate change, animal behavior, evolution and paleontology.
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