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<div class="section" id="technical-overview-of-eam">
<span id="flow"></span><h1>Technical overview of EAM<a class="headerlink" href="#technical-overview-of-eam" title="Permalink to this headline">¶</a></h1>
<p><a class="reference external" href="https://github.com/kaizhangpnl/kaizhangpnl.github.io/blob/master/source/flow.rst">Github</a>
<a class="reference external" href="https://kaizhangpnl.github.io/flow.html">Spinx</a></p>
<div class="section" id="cime-in-e3sm">
<h2>CIME in E3SM<a class="headerlink" href="#cime-in-e3sm" title="Permalink to this headline">¶</a></h2>
<p>E3SM uses CIME (Common Infrastructure for Modeling the Earth), which contains the support
scripts (configure, build, run, test), data models, essential utility libraries, a “main”
and other tools that are needed to build a single-executable coupled Earth System Model.</p>
<p>CIME documentation is available <a class="reference external" href="http://esmci.github.io/cime/">here</a>.</p>
</div>
<div class="section" id="flow-chart">
<h2>Flow chart<a class="headerlink" href="#flow-chart" title="Permalink to this headline">¶</a></h2>
<div class="figure align-center" id="id5">
<a class="reference internal image-reference" href="_images/flow_chart.png"><img alt="Flow Chart" src="_images/flow_chart.png" style="width: 401.6px; height: 569.0px;" /></a>
<p class="caption"><span class="caption-text">Diagrams showing the sequence of calculation (i.e., the time integration loop) in EAM.
The blue stadium shapes refer to the resolved-scale dynamics and transport, and
the diamonds refer to the exchange of mass and energy with other model components
(e.g., land and ocean) through the coupler. The rectangular cells are parts of the
physics package that describe the subgrid-scale physical and chemical processes.
The colored boxes indicate parts of EAM that affect the concentrations of water
species; these include the numerical fixers, deep and shallow convection,
turbulent transport, and stratiform cloud macro- and microphysics.
See <a class="reference external" href="https://www.geosci-model-dev.net/11/1971/2018/gmd-11-1971-2018.html">Zhang et al. (2018)</a> for more details.</span></p>
</div>
</div>
<div class="section" id="spatial-resolution">
<h2>Spatial resolution<a class="headerlink" href="#spatial-resolution" title="Permalink to this headline">¶</a></h2>
<p>Technically, EAM can run with horizontal resolution from <code class="docutils literal notranslate"><span class="pre">ne4</span></code> (about 750km) to <code class="docutils literal notranslate"><span class="pre">ne120</span></code> (about 25km)
(with F1850C5AV1C-04P2 compset):</p>
<ol class="arabic simple">
<li><code class="docutils literal notranslate"><span class="pre">ne4_ne4</span> <span class="pre">(~750km)</span></code></li>
<li><code class="docutils literal notranslate"><span class="pre">ne11_ne11</span> <span class="pre">(~280km)</span></code></li>
<li><code class="docutils literal notranslate"><span class="pre">ne16_ne16</span> <span class="pre">(~190km)</span></code></li>
<li><code class="docutils literal notranslate"><span class="pre">ne30_ne30</span> <span class="pre">(~100km)</span></code></li>
<li><code class="docutils literal notranslate"><span class="pre">ne120_ne120</span> <span class="pre">(~25km)</span></code></li>
</ol>
<p>The vertical resolution is L30 (<a class="reference external" href="./L30.html">lev</a>) for V0 and L72 (<a class="reference external" href="./L72.html">lev</a>) for V1.
Detailed information about the vertical coordinate in EAMv1 can be found
<a class="reference external" href="https://github.com/kaizhangpnl/kaizhangpnl.github.io/blob/master/source/levels.txt">here</a> :</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ID</span> <span class="n">hyai</span> <span class="n">hyam</span> <span class="n">hybi</span> <span class="n">hybm</span> <span class="n">P_int</span> <span class="n">P_full</span>
<span class="o">--</span> <span class="o">------</span> <span class="o">------</span> <span class="o">------</span> <span class="o">------</span> <span class="o">------</span> <span class="o">------</span>
<span class="mi">1</span> <span class="mf">0.1000</span> <span class="mf">0.0000</span> <span class="mf">0.1000</span> <span class="o"><---</span> <span class="n">layer</span> <span class="n">interface</span>
<span class="mf">0.1238</span> <span class="mf">0.0000</span> <span class="mf">0.1238</span> <span class="o"><---</span> <span class="n">layer</span> <span class="n">center</span>
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<span class="mf">120.1594</span> <span class="mf">334.2364</span> <span class="mf">454.3958</span>
<span class="mi">46</span> <span class="mf">115.9659</span> <span class="mf">356.9515</span> <span class="mf">472.9174</span>
<span class="mf">111.5393</span> <span class="mf">380.9292</span> <span class="mf">492.4686</span>
<span class="mi">47</span> <span class="mf">107.1127</span> <span class="mf">404.9070</span> <span class="mf">512.0198</span>
<span class="mf">102.6706</span> <span class="mf">428.9689</span> <span class="mf">531.6395</span>
<span class="mi">48</span> <span class="mf">98.2285</span> <span class="mf">453.0308</span> <span class="mf">551.2593</span>
<span class="mf">93.8440</span> <span class="mf">476.7809</span> <span class="mf">570.6249</span>
<span class="mi">49</span> <span class="mf">89.4594</span> <span class="mf">500.5311</span> <span class="mf">589.9905</span>
<span class="mf">85.2361</span> <span class="mf">523.4077</span> <span class="mf">608.6438</span>
<span class="mi">50</span> <span class="mf">81.0128</span> <span class="mf">546.2842</span> <span class="mf">627.2970</span>
<span class="mf">76.9323</span> <span class="mf">568.3877</span> <span class="mf">645.3200</span>
<span class="mi">51</span> <span class="mf">72.8517</span> <span class="mf">590.4912</span> <span class="mf">663.3429</span>
<span class="mf">68.9676</span> <span class="mf">611.5304</span> <span class="mf">680.4980</span>
<span class="mi">52</span> <span class="mf">65.0835</span> <span class="mf">632.5697</span> <span class="mf">697.6532</span>
<span class="mf">61.4493</span> <span class="mf">652.2553</span> <span class="mf">713.7046</span>
<span class="mi">53</span> <span class="mf">57.8151</span> <span class="mf">671.9410</span> <span class="mf">729.7561</span>
<span class="mf">54.4827</span> <span class="mf">689.9922</span> <span class="mf">744.4748</span>
<span class="mi">54</span> <span class="mf">51.1502</span> <span class="mf">708.0434</span> <span class="mf">759.1936</span>
<span class="mf">48.1685</span> <span class="mf">724.1943</span> <span class="mf">772.3628</span>
<span class="mi">55</span> <span class="mf">45.1869</span> <span class="mf">740.3452</span> <span class="mf">785.5321</span>
<span class="mf">42.6011</span> <span class="mf">754.3516</span> <span class="mf">796.9527</span>
<span class="mi">56</span> <span class="mf">40.0154</span> <span class="mf">768.3580</span> <span class="mf">808.3734</span>
<span class="mf">37.8655</span> <span class="mf">780.0033</span> <span class="mf">817.8688</span>
<span class="mi">57</span> <span class="mf">35.7157</span> <span class="mf">791.6486</span> <span class="mf">827.3643</span>
<span class="mf">33.9653</span> <span class="mf">801.1299</span> <span class="mf">835.0952</span>
<span class="mi">58</span> <span class="mf">32.2149</span> <span class="mf">810.6111</span> <span class="mf">842.8261</span>
<span class="mf">30.6674</span> <span class="mf">818.9938</span> <span class="mf">849.6612</span>
<span class="mi">59</span> <span class="mf">29.1199</span> <span class="mf">827.3766</span> <span class="mf">856.4964</span>
<span class="mf">27.6074</span> <span class="mf">835.5690</span> <span class="mf">863.1764</span>
<span class="mi">60</span> <span class="mf">26.0950</span> <span class="mf">843.7614</span> <span class="mf">869.8564</span>
<span class="mf">24.6201</span> <span class="mf">851.7505</span> <span class="mf">876.3706</span>
<span class="mi">61</span> <span class="mf">23.1453</span> <span class="mf">859.7396</span> <span class="mf">882.8849</span>
<span class="mf">21.7103</span> <span class="mf">867.5124</span> <span class="mf">889.2227</span>
<span class="mi">62</span> <span class="mf">20.2754</span> <span class="mf">875.2853</span> <span class="mf">895.5606</span>
<span class="mf">18.8827</span> <span class="mf">882.8292</span> <span class="mf">901.7118</span>
<span class="mi">63</span> <span class="mf">17.4900</span> <span class="mf">890.3731</span> <span class="mf">907.8631</span>
<span class="mf">16.1418</span> <span class="mf">897.6757</span> <span class="mf">913.8175</span>
<span class="mi">64</span> <span class="mf">14.7937</span> <span class="mf">904.9783</span> <span class="mf">919.7720</span>
<span class="mf">13.4923</span> <span class="mf">912.0274</span> <span class="mf">925.5197</span>
<span class="mi">65</span> <span class="mf">12.1910</span> <span class="mf">919.0766</span> <span class="mf">931.2675</span>
<span class="mf">10.9386</span> <span class="mf">925.8604</span> <span class="mf">936.7990</span>
<span class="mi">66</span> <span class="mf">9.6862</span> <span class="mf">932.6442</span> <span class="mf">942.3305</span>
<span class="mf">8.4849</span> <span class="mf">939.1512</span> <span class="mf">947.6362</span>
<span class="mi">67</span> <span class="mf">7.2837</span> <span class="mf">945.6582</span> <span class="mf">952.9419</span>
<span class="mf">6.1356</span> <span class="mf">951.8772</span> <span class="mf">958.0128</span>
<span class="mi">68</span> <span class="mf">4.9875</span> <span class="mf">958.0962</span> <span class="mf">963.0837</span>
<span class="mf">3.8945</span> <span class="mf">964.0166</span> <span class="mf">967.9111</span>
<span class="mi">69</span> <span class="mf">2.8015</span> <span class="mf">969.9370</span> <span class="mf">972.7385</span>
<span class="mf">1.7656</span> <span class="mf">975.5485</span> <span class="mf">977.3141</span>
<span class="mi">70</span> <span class="mf">0.7296</span> <span class="mf">981.1600</span> <span class="mf">981.8896</span>
<span class="mf">0.3648</span> <span class="mf">985.8405</span> <span class="mf">986.2053</span>
<span class="mi">71</span> <span class="mf">0.0000</span> <span class="mf">990.5210</span> <span class="mf">990.5210</span>
<span class="mf">0.0000</span> <span class="mf">993.7570</span> <span class="mf">993.7570</span>
<span class="mi">72</span> <span class="mf">0.0000</span> <span class="mf">996.9929</span> <span class="mf">996.9929</span>
<span class="mf">0.0000</span> <span class="mf">998.4964</span> <span class="mf">998.4964</span>
<span class="mi">73</span> <span class="mf">0.0000</span> <span class="mf">1000.0000</span> <span class="mf">1000.0000</span>
</pre></div>
</div>
</div>
<div class="section" id="temporal-resolution">
<h2>Temporal resolution<a class="headerlink" href="#temporal-resolution" title="Permalink to this headline">¶</a></h2>
<p>The table below shows the model time step used in the default EAMv1
(FC5AV1C-04P2 compset for ne11, ne16, and ne30; FC5AV1C-H01C compset for ne120)
at different model resolutions.
Modified from <a class="reference external" href="https://www.geosci-model-dev.net/11/1971/2018/gmd-11-1971-2018.html">Zhang et al. (2018)</a>.</p>
<div class="figure align-center">
<a class="reference internal image-reference" href="_images/timestepping.jpeg"><img alt="Time stepping in EAMv1." src="_images/timestepping.jpeg" style="width: 754.4px; height: 400.8px;" /></a>
</div>
</div>
<div class="section" id="time-stepping">
<h2>Time stepping<a class="headerlink" href="#time-stepping" title="Permalink to this headline">¶</a></h2>
<p>A hybrid method is used to couple the physics and dynamics.
For the fluid dynamics variables (temperature, winds, and surface pressure),
physics tendencies are applied as a constant source term for dynamics
in each of the dynamical (se_nsplit) sub-steps.
For ne30/ne120, the coupling frequency is 900s/225s.
For water vapor, liquid- and ice-phase condensate, and all other advected tracers,
the hard adjustment is used and the coupling frequency is 30min/15min for ne30/ne120.</p>
<p>Radiation is called every hour for both ne30 and ne120. The radiation
tendency (calculated hourly) is re-used at each model time step (e.g. 30min for ne30).</p>
<p>CLUBB and MG2 are substepped together with 5min time step.
There is no internal CLUBB sub-cycle if dt_clubb_mg2 <= 5min.
There is no internal MG2 subcycle either (except for sedimentation part,
which is dynamically substepped). The CLUBB-MG2 loop is coupled with the
host model at each model physics time step (e.g. 30min for ne30).
CLUBB/MG2 doesn’t update the state variable directly (physics_update is used).
If CLUBB/MG2 internal subcycles exist, the output tendency is the time-averaged tendency.</p>
<p>In the atmosphere-only simulation, the surface fields are updated at each
atm-physics time step (30min for ne30) through the coupler. The land model
uses the same time step.</p>
<p>In the coupled model, the coupling frequency is the same for the atmosphere
and land model as in the atm-only simulation. For the ocean model, the coupling frequency is 30min for ne30
and 30min or 1h for ne120 (depending on grid setup - oRRS15to5 versus oRRS18to6)
in the current version.</p>
</div>
<div class="section" id="list-of-advective-tracers">
<h2>List of advective tracers<a class="headerlink" href="#list-of-advective-tracers" title="Permalink to this headline">¶</a></h2>
<ul>
<li><p class="first"><a class="reference external" href="https://github.com/kaizhangpnl/kaizhangpnl.github.io/blob/master/source/tracers_adv.txt">List of advective tracers in EAMv1</a> :</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span> <span class="n">Name</span> <span class="n">Description</span> <span class="n">Type</span>
<span class="o">------</span> <span class="o">----------------------------------------</span> <span class="o">-----</span>
<span class="mi">1</span> <span class="n">Q</span> <span class="n">Specific</span> <span class="n">humidity</span> <span class="n">wet</span>
<span class="mi">2</span> <span class="n">CLDLIQ</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">cloud</span> <span class="n">liquid</span> <span class="n">amount</span> <span class="n">wet</span>
<span class="mi">3</span> <span class="n">CLDICE</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">cloud</span> <span class="n">ice</span> <span class="n">amount</span> <span class="n">wet</span>
<span class="mi">4</span> <span class="n">NUMLIQ</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">cloud</span> <span class="n">liquid</span> <span class="n">number</span> <span class="n">wet</span>
<span class="mi">5</span> <span class="n">NUMICE</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">cloud</span> <span class="n">ice</span> <span class="n">number</span> <span class="n">wet</span>
<span class="mi">6</span> <span class="n">RAINQM</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">rain</span> <span class="n">amount</span> <span class="n">wet</span>
<span class="mi">7</span> <span class="n">SNOWQM</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">snow</span> <span class="n">amount</span> <span class="n">wet</span>
<span class="mi">8</span> <span class="n">NUMRAI</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">rain</span> <span class="n">number</span> <span class="n">wet</span>
<span class="mi">9</span> <span class="n">NUMSNO</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">snow</span> <span class="n">number</span> <span class="n">wet</span>
<span class="mi">10</span> <span class="n">O3</span> <span class="n">O3</span> <span class="n">dry</span>
<span class="mi">11</span> <span class="n">H2O2</span> <span class="n">H2O2</span> <span class="n">dry</span>
<span class="mi">12</span> <span class="n">H2SO4</span> <span class="n">H2SO4</span> <span class="n">dry</span>
<span class="mi">13</span> <span class="n">SO2</span> <span class="n">SO2</span> <span class="n">dry</span>
<span class="mi">14</span> <span class="n">DMS</span> <span class="n">DMS</span> <span class="n">dry</span>
<span class="mi">15</span> <span class="n">SOAG</span> <span class="n">SOAG</span> <span class="n">dry</span>
<span class="mi">16</span> <span class="n">so4_a1</span> <span class="n">so4_a1</span> <span class="n">dry</span>
<span class="mi">17</span> <span class="n">pom_a1</span> <span class="n">pom_a1</span> <span class="n">dry</span>
<span class="mi">18</span> <span class="n">soa_a1</span> <span class="n">soa_a1</span> <span class="n">dry</span>
<span class="mi">19</span> <span class="n">bc_a1</span> <span class="n">bc_a1</span> <span class="n">dry</span>
<span class="mi">20</span> <span class="n">dst_a1</span> <span class="n">dst_a1</span> <span class="n">dry</span>
<span class="mi">21</span> <span class="n">ncl_a1</span> <span class="n">ncl_a1</span> <span class="n">dry</span>
<span class="mi">22</span> <span class="n">mom_a1</span> <span class="n">mom_a1</span> <span class="n">dry</span>
<span class="mi">23</span> <span class="n">num_a1</span> <span class="n">num_a1</span> <span class="n">dry</span>
<span class="mi">24</span> <span class="n">so4_a2</span> <span class="n">so4_a2</span> <span class="n">dry</span>
<span class="mi">25</span> <span class="n">soa_a2</span> <span class="n">soa_a2</span> <span class="n">dry</span>
<span class="mi">26</span> <span class="n">ncl_a2</span> <span class="n">ncl_a2</span> <span class="n">dry</span>
<span class="mi">27</span> <span class="n">mom_a2</span> <span class="n">mom_a2</span> <span class="n">dry</span>
<span class="mi">28</span> <span class="n">num_a2</span> <span class="n">num_a2</span> <span class="n">dry</span>
<span class="mi">29</span> <span class="n">dst_a3</span> <span class="n">dst_a3</span> <span class="n">dry</span>
<span class="mi">30</span> <span class="n">ncl_a3</span> <span class="n">ncl_a3</span> <span class="n">dry</span>
<span class="mi">31</span> <span class="n">so4_a3</span> <span class="n">so4_a3</span> <span class="n">dry</span>
<span class="mi">32</span> <span class="n">bc_a3</span> <span class="n">bc_a3</span> <span class="n">dry</span>
<span class="mi">33</span> <span class="n">pom_a3</span> <span class="n">pom_a3</span> <span class="n">dry</span>
<span class="mi">34</span> <span class="n">soa_a3</span> <span class="n">soa_a3</span> <span class="n">dry</span>
<span class="mi">35</span> <span class="n">mom_a3</span> <span class="n">mom_a3</span> <span class="n">dry</span>
<span class="mi">36</span> <span class="n">num_a3</span> <span class="n">num_a3</span> <span class="n">dry</span>
<span class="mi">37</span> <span class="n">pom_a4</span> <span class="n">pom_a4</span> <span class="n">dry</span>
<span class="mi">38</span> <span class="n">bc_a4</span> <span class="n">bc_a4</span> <span class="n">dry</span>
<span class="mi">39</span> <span class="n">mom_a4</span> <span class="n">mom_a4</span> <span class="n">dry</span>
<span class="mi">40</span> <span class="n">num_a4</span> <span class="n">num_a4</span> <span class="n">dry</span>
</pre></div>
</div>
</li>
<li><p class="first"><a class="reference external" href="https://github.com/kaizhangpnl/kaizhangpnl.github.io/blob/master/source/tracers_adv_EAMv0.txt">List of advective tracers in EAMv0</a> :</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span> <span class="n">Name</span> <span class="n">Description</span> <span class="n">Type</span>
<span class="o">------</span> <span class="o">----------------------------------------</span> <span class="o">-----</span>
<span class="mi">1</span> <span class="n">Q</span> <span class="n">Specific</span> <span class="n">humidity</span> <span class="n">wet</span>
<span class="mi">2</span> <span class="n">CLDLIQ</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">cloud</span> <span class="n">liquid</span> <span class="n">amount</span> <span class="n">wet</span>
<span class="mi">3</span> <span class="n">CLDICE</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">cloud</span> <span class="n">ice</span> <span class="n">amount</span> <span class="n">wet</span>
<span class="mi">4</span> <span class="n">NUMLIQ</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">cloud</span> <span class="n">liquid</span> <span class="n">number</span> <span class="n">wet</span>
<span class="mi">5</span> <span class="n">NUMICE</span> <span class="n">Grid</span> <span class="n">box</span> <span class="n">averaged</span> <span class="n">cloud</span> <span class="n">ice</span> <span class="n">number</span> <span class="n">wet</span>
<span class="mi">6</span> <span class="n">H2O2</span> <span class="n">H2O2</span> <span class="n">dry</span>
<span class="mi">7</span> <span class="n">H2SO4</span> <span class="n">H2SO4</span> <span class="n">dry</span>
<span class="mi">8</span> <span class="n">SO2</span> <span class="n">SO2</span> <span class="n">dry</span>
<span class="mi">9</span> <span class="n">DMS</span> <span class="n">DMS</span> <span class="n">dry</span>
<span class="mi">10</span> <span class="n">SOAG</span> <span class="n">SOAG</span> <span class="n">dry</span>
<span class="mi">11</span> <span class="n">so4_a1</span> <span class="n">so4_a1</span> <span class="n">dry</span>
<span class="mi">12</span> <span class="n">pom_a1</span> <span class="n">pom_a1</span> <span class="n">dry</span>
<span class="mi">13</span> <span class="n">soa_a1</span> <span class="n">soa_a1</span> <span class="n">dry</span>
<span class="mi">14</span> <span class="n">bc_a1</span> <span class="n">bc_a1</span> <span class="n">dry</span>
<span class="mi">15</span> <span class="n">dst_a1</span> <span class="n">dst_a1</span> <span class="n">dry</span>
<span class="mi">16</span> <span class="n">ncl_a1</span> <span class="n">ncl_a1</span> <span class="n">dry</span>
<span class="mi">17</span> <span class="n">num_a1</span> <span class="n">num_a1</span> <span class="n">dry</span>
<span class="mi">18</span> <span class="n">so4_a2</span> <span class="n">so4_a2</span> <span class="n">dry</span>
<span class="mi">19</span> <span class="n">soa_a2</span> <span class="n">soa_a2</span> <span class="n">dry</span>
<span class="mi">20</span> <span class="n">ncl_a2</span> <span class="n">ncl_a2</span> <span class="n">dry</span>
<span class="mi">21</span> <span class="n">num_a2</span> <span class="n">num_a2</span> <span class="n">dry</span>
<span class="mi">22</span> <span class="n">dst_a3</span> <span class="n">dst_a3</span> <span class="n">dry</span>
<span class="mi">23</span> <span class="n">ncl_a3</span> <span class="n">ncl_a3</span> <span class="n">dry</span>
<span class="mi">24</span> <span class="n">so4_a3</span> <span class="n">so4_a3</span> <span class="n">dry</span>
<span class="mi">25</span> <span class="n">num_a3</span> <span class="n">num_a3</span> <span class="n">dry</span>
</pre></div>
</div>
</li>
</ul>
</div>
<div class="section" id="list-of-tuning-parameters">
<h2>List of tuning parameters<a class="headerlink" href="#list-of-tuning-parameters" title="Permalink to this headline">¶</a></h2>
<p>Below is a list of parameters that are often tuned in EAM V0 (FC5),
V1 default (FC5AV1C-04P2 or FC5AV1C-L), and V1 with the DECK tuning for AMIP simulations.
Note that only V1 has CLUBB-related parameters.
The csv file is available <a class="reference external" href="https://github.com/kaizhangpnl/kaizhangpnl.github.io/blob/master/source/tuning_parameters.csv">here</a>.</p>
<table border="1" class="colwidths-given docutils">
<colgroup>
<col width="20%" />
<col width="40%" />
<col width="13%" />
<col width="13%" />
<col width="13%" />
</colgroup>
<thead valign="bottom">
<tr class="row-odd"><th class="head">Parameter</th>
<th class="head">Description</th>
<th class="head">EAM V0</th>
<th class="head">EAM V1</th>
<th class="head">EAM V1 (DECK)</th>
</tr>
</thead>
<tbody valign="top">
<tr class="row-even"><td>zmconv_dmpdz</td>
<td>Convective entrainment rate</td>
<td>-1.00E-03</td>
<td>-7.00E-04</td>
<td>-7.00E-04</td>
</tr>
<tr class="row-odd"><td>zmconv_c0_ocn</td>
<td>Autoconversion parameter for deep convective clouds over ocean</td>
<td>0.0035</td>
<td>0.007</td>
<td>0.007</td>
</tr>
<tr class="row-even"><td>zmconv_c0_lnd</td>
<td>Autoconversion parameter for deep convective clouds over land</td>
<td>0.009</td>
<td>0.007</td>
<td>0.007</td>
</tr>
<tr class="row-odd"><td>zmconv_ke</td>
<td>Convective rain evaporation</td>
<td>1.00E-06</td>
<td>1.50E-06</td>
<td>5.00E-06</td>
</tr>
<tr class="row-even"><td>zmconv_tiedke_add</td>
<td>Perturbation added to the parcel buoyancy in ZM scheme</td>
<td>0.5</td>
<td>0.8</td>
<td>0.8</td>
</tr>
<tr class="row-odd"><td>cldfrc_dp1</td>
<td>Convective cloud fraction coefficient</td>
<td>0.025</td>
<td>0.045</td>
<td>0.045</td>
</tr>
<tr class="row-even"><td>rhmaxi</td>
<td>Threshold RH with respect to ice for ice cloud fraction to equal to 1.0</td>
<td>1.1</td>
<td>1.05</td>
<td>1.05</td>
</tr>
<tr class="row-odd"><td>re_ice_deep</td>
<td>Convective ice cloud effective radius</td>
<td>2.50E-05</td>
<td>1.60E-05</td>
<td>1.60E-05</td>
</tr>
<tr class="row-even"><td>micro_mg_dcs</td>
<td>Autoconversion size threshold for cloud ice to snow</td>
<td>6.00E-04</td>
<td>Temperature dependent</td>
<td>Temperature dependent</td>
</tr>
<tr class="row-odd"><td>ice_sed_ai</td>
<td>Fall speed parameter for cloud ice</td>
<td>700</td>
<td>500</td>
<td>500</td>
</tr>
<tr class="row-even"><td>so4_sz_thresh_icenuc</td>
<td>Aitken mode sulfate aerosol size threshold for homogeneous ice nucleation</td>
<td>1.00E-07</td>
<td>7.50E-08</td>
<td>5.00E-08</td>
</tr>
<tr class="row-odd"><td>c1</td>
<td>Constant associated with the dissipation of w variance</td>
<td>N/A</td>
<td>1.335</td>
<td>1.335</td>
</tr>
<tr class="row-even"><td>clubb_C2rt</td>
<td>Constant associated with the dissipation of total water mixing ratio</td>
<td>N/A</td>
<td>1.75</td>
<td>1.75</td>
</tr>
<tr class="row-odd"><td>clubb_C8</td>
<td>Constant associated with the damping of w skewness used in CLUBB</td>
<td>N/A</td>
<td>4.3</td>
<td>4.3</td>
</tr>
<tr class="row-even"><td>clubb_C14</td>
<td>Constant in Newtonian damping of u variance and v variance used in CLUBB</td>
<td>N/A</td>
<td>1.3</td>
<td>1.06</td>
</tr>
<tr class="row-odd"><td>clubb_c_K10</td>
<td>Momentum diffusion factor</td>
<td>N/A</td>
<td>0.3</td>
<td>0.3</td>
</tr>
<tr class="row-even"><td>clubb_gamma_coef</td>
<td>Constant of the width of PDF in w-coordinate</td>
<td>N/A</td>
<td>0.32</td>
<td>0.32</td>
</tr>
<tr class="row-odd"><td>dust_emis_fact</td>
<td>Tuning parameter for dust emissions.</td>
<td>0.55</td>
<td>2.05</td>
<td>2.05</td>
</tr>
<tr class="row-even"><td>n_so4_monolayers_pcage</td>
<td>Number of so4(+nh4) monolayers needed to “age” a carbon particle</td>
<td>3</td>
<td>8</td>
<td>8</td>
</tr>
</tbody>
</table>
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