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radiativeconvectiveequilibrium [2025/02/06 12:19] – [Double CO2] adminradiativeconvectiveequilibrium [2025/02/09 16:48] (current) admin
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 ===== Radiative Convective Equilibrium ===== ===== Radiative Convective Equilibrium =====
  
-//2025 Revision in progress//+Here is the code: {{ :radcon_2025.tar.gz }} {{ :crm_2025.tar.gz |}}
  
 This page describes a series of simulations This page describes a series of simulations
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-  * **stn**, standard lapse rate of 6.5 K km^-1is used for the convective adjustment+  * **stn**, standard lapse rate of 6.5 K km<sup>-1</sup> is used for the convective adjustment
   * **mst**, moist adiabatic lapse rate is used for the convective adjustment   * **mst**, moist adiabatic lapse rate is used for the convective adjustment
   * **rad**, no convective adjustment, and no sensible heat flux from the surface   * **rad**, no convective adjustment, and no sensible heat flux from the surface
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   * model label: **stn**   * model label: **stn**
   * Convective adjustment with the standard lapse rate.   * Convective adjustment with the standard lapse rate.
-  * **Note:** the final input file to the CRM, and thus one consistent with radiative convective equilibrium, is offered at [[http://12characters.net/xcrm/crm.cgi | CRM Online]] as '''radconeq.in'''.  For your information, that file is also [[RadiativeConvectiveEquilibriumInput | here]], but with the temperature replaced by a ''*'', because those numbers are continually updated by the model.+  * **Note:** the final input file to the CRM, and thus one consistent with radiative convective equilibrium, is offered at [[http://12characters.net/xcrm/crm.cgi | CRM Online]] as ''radconeq.in''.  
  
 ---- ----
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 ---- ----
  
-<WRAP center 85% >+<WRAP center 50% >
 ^ {{ :stn_stn2xw_stn2x_mx.png }} ^ ^ {{ :stn_stn2xw_stn2x_mx.png }} ^
 | The mixing ratio.  Notice the red curve overlies the blue.| | The mixing ratio.  Notice the red curve overlies the blue.|
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 ==== Turn off convection ==== ==== Turn off convection ====
 +<WRAP center 50%>
 +^ {{ :stn_radw.png }} ^
 +|**radw** has specific humidity retained from  **stn**.  The convective adjustment and the sensible heat flux from the surface is turned off.|
 +</WRAP>
 +
 ---- ----
-||{{attachment:stn_radw.png}}||'''radw''' has specific humidity retained from  '''stn''' The convective adjustment and the sensible heat flux from the surface is turned off.|| + 
----- +{{ :stn_radw_mx.png }} 
-||{{attachment:stn_radw_mx.png}}|| Specific humidity is invariant.  If plotted with respect to pressure levels, these curves would overlap.  But, being plotted with respect to z levels, they don't.||+| Specific humidity is invariant.  If plotted with respect to pressure levels, these curves would overlap.  But, being plotted with respect to z levels, they don't.| 
 ---- ----
  
-== Moist adiabatic adjustment ==+==== Moist adiabatic adjustment ==== 
 + 
 + 
 +^ {{ :mst_mst2xw_mst2x.png }} ^ 
 +|As in the *stn* simulations, but using the moist adiabatic lapse rate.  The moist adiabatic lapse rate decreases as temperature increases.  This property leads to a negative feedback in global warming forced by radiation. The specific comparison demonstrating the negative feedback is to compare the $\Delta T$ in **mst2x** with **stn2x**.|
  
 ---- ----
-||{{attachment:mst_mst2xw_mst2x.png}}||As in the '''stn''' simulations, but using the moist adiabatic lapse rate.  The moist adiabatic lapse rate decreases as temperature increases.  This property leads to a negative feedback in global warming forced by radiation. The specific comparison demonstrating the negative feedback is to compare the &Delta;T in '''mst2x''' with '''stn2x'''.|| + 
----- +<WRAP center 50%> 
-||{{attachment:mst_mst2xw_mst2x_mx.png}}||The mixing ratio.  Notice the red overlies the blue.||+{{ :mst_mst2xw_mst2x_mx.png }} 
 +| The mixing ratio.  Notice the red overlies the blue.| 
 +</WRAP>
 ---- ----
  
  
 ==== Increase solar radiation ==== ==== Increase solar radiation ====
 +
 +^ {{ :stn_stnsolw_stnsol.png }} ^
 +|Warming forced by changing the solar constant in the model from 700 W m<sup>-2</sup> to 710 W m<sup>-2</sup>. The model has fixed zenith angle, with cosine=0.5. So the change in incoming solar radiation is 5 W m<sup>-2</sup> Being cloudless, the model has an albedo of approximately 0.16.  So the radiative forcing at the top of the atmosphere is 4.2 W m<sup>-2</sup>, comparable to double CO2.|
  
 ---- ----
-||{{attachment:stn_stnsolw_stnsol.png}}||Warming forced by changing the solar constant in the model from 700 W m^-2^ to 710 W m^-2^. The model has fixed zenith angle, with cosine=0.5. So the change in incoming solar radiation is 5 W m^-2^.  Being cloudless, the model has an albedo of approximately 0.16.  So the radiative forcing at the top of the atmosphere is 4.2 W m^-2^, comparable to double CO,,,2,,.|| + 
----- +<WRAP center 50%> 
-||{{attachment:stn_stnsolw_stnsol_mx.png}}||The mixing ratio.||+{{ :stn_stnsolw_stnsol_mx.png }} 
 +|The mixing ratio.| 
 +</WRAP>
  
radiativeconvectiveequilibrium.1738865957.txt.gz · Last modified: 2025/02/06 12:19 by admin

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