s an area source based on an image of persistent lights of the Defense Meteorological Satellite Program (DMSP) for São Paulo and Minas Gerais (Brasil) states and finally the function <code>emission</code> calculates the CO emissions.</p>
<div class="sourceCode" id="cb1"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://atmoschem.