Explicit cloud representation in the <em>Atmos</em> 1D climate model for Earth and rocky planet applications
1D climate models are less sophisticated than 3D global circulation models (GCMs), however their computational time is much less expensive, allowing a large number of runs in a short period of time to explore a wide parameter space. Exploring parameter space is particularly important for predicting...
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| Format: | Article |
| Language: | English |
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AIMS Press
2018-12-01
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| Series: | AIMS Geosciences |
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| Online Access: | http://www.aimspress.com/article/10.3934/geosci.2018.4.180/fulltext.html |
| _version_ | 1818955090672746496 |
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| author | Thomas Fauchez Giada Arney Ravi Kumar Kopparapu Shawn Domagal Goldman |
| author_facet | Thomas Fauchez Giada Arney Ravi Kumar Kopparapu Shawn Domagal Goldman |
| author_sort | Thomas Fauchez |
| collection | DOAJ |
| description | 1D climate models are less sophisticated than 3D global circulation models (GCMs), however their computational time is much less expensive, allowing a large number of runs in a short period of time to explore a wide parameter space. Exploring parameter space is particularly important for predicting the observable properties of exoplanets, for which few parameters are known with certainty. Therefore, 1D climate models are still very useful tools for planetary studies. In most of these 1D models, clouds are not physically represented in the atmosphere, despite having a well-known, significant impact on a planetary radiative budget. This impact is simulated by artificially raising surface albedo, in order to reproduce the observed-averaged surface temperature (i.e. 288 K for modern Earth) and a radiative balance at the top of the atmosphere. This non-physical representation of clouds, causes atmospheric longwave and shortwaves fluxes to not match observational data. Additionally, this technique represents a parameter that is highly-tuned to modern Earth’s climate, and may not be appropriate for planets that deviate from modern Earth’s climate conditions. In this paper, we present an update to the climate model within the <em>Atmos</em> 1D atmospheric modeling package with a physical representation of clouds. We show that this physical representation of clouds in the atmosphere allows both longwave and shortwave fluxes to match observational data. This improvement will allow us to study the energy fluxes for a variety of cloudy rocky planets, and increase our confidence in future simulations of temperature profile and net energy balance. |
| first_indexed | 2024-12-20T10:32:32Z |
| format | Article |
| id | doaj.art-196cdd55350f4ffea3fa15783afdb037 |
| institution | Directory Open Access Journal |
| issn | 2471-2132 |
| language | English |
| last_indexed | 2024-12-20T10:32:32Z |
| publishDate | 2018-12-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | AIMS Geosciences |
| spelling | doaj.art-196cdd55350f4ffea3fa15783afdb0372022-12-21T19:43:41ZengAIMS PressAIMS Geosciences2471-21322018-12-014418019110.3934/geosci.2018.4.180Explicit cloud representation in the <em>Atmos</em> 1D climate model for Earth and rocky planet applicationsThomas FauchezGiada ArneyRavi Kumar KopparapuShawn Domagal Goldman1D climate models are less sophisticated than 3D global circulation models (GCMs), however their computational time is much less expensive, allowing a large number of runs in a short period of time to explore a wide parameter space. Exploring parameter space is particularly important for predicting the observable properties of exoplanets, for which few parameters are known with certainty. Therefore, 1D climate models are still very useful tools for planetary studies. In most of these 1D models, clouds are not physically represented in the atmosphere, despite having a well-known, significant impact on a planetary radiative budget. This impact is simulated by artificially raising surface albedo, in order to reproduce the observed-averaged surface temperature (i.e. 288 K for modern Earth) and a radiative balance at the top of the atmosphere. This non-physical representation of clouds, causes atmospheric longwave and shortwaves fluxes to not match observational data. Additionally, this technique represents a parameter that is highly-tuned to modern Earth’s climate, and may not be appropriate for planets that deviate from modern Earth’s climate conditions. In this paper, we present an update to the climate model within the <em>Atmos</em> 1D atmospheric modeling package with a physical representation of clouds. We show that this physical representation of clouds in the atmosphere allows both longwave and shortwave fluxes to match observational data. This improvement will allow us to study the energy fluxes for a variety of cloudy rocky planets, and increase our confidence in future simulations of temperature profile and net energy balance.http://www.aimspress.com/article/10.3934/geosci.2018.4.180/fulltext.htmlearth| radiative budget| radiative forcing| cloud| climate| albedo |
| spellingShingle | Thomas Fauchez Giada Arney Ravi Kumar Kopparapu Shawn Domagal Goldman Explicit cloud representation in the <em>Atmos</em> 1D climate model for Earth and rocky planet applications AIMS Geosciences earth| radiative budget| radiative forcing| cloud| climate| albedo |
| title | Explicit cloud representation in the <em>Atmos</em> 1D climate model for Earth and rocky planet applications |
| title_full | Explicit cloud representation in the <em>Atmos</em> 1D climate model for Earth and rocky planet applications |
| title_fullStr | Explicit cloud representation in the <em>Atmos</em> 1D climate model for Earth and rocky planet applications |
| title_full_unstemmed | Explicit cloud representation in the <em>Atmos</em> 1D climate model for Earth and rocky planet applications |
| title_short | Explicit cloud representation in the <em>Atmos</em> 1D climate model for Earth and rocky planet applications |
| title_sort | explicit cloud representation in the em atmos em 1d climate model for earth and rocky planet applications |
| topic | earth| radiative budget| radiative forcing| cloud| climate| albedo |
| url | http://www.aimspress.com/article/10.3934/geosci.2018.4.180/fulltext.html |
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