class="gp">In [1]: </span><span class="n">nc1</span> <span class="o">=</span> <span class="s1">&#39;nasa_gpm_2015-06-18&#39;</span>

<span class="gp">In [2]: </span><span class="n">csv1</span> <span class="o">=</span> <span class="s1">&#39;ecan_data_2015-06-18&#39;</span>

<span class="gp">In [3]: </span><span class="n">grid_time_name</span> <span class="o">=</span> <span class="s1">&#39;time&#39;</span>

<span class="gp">In [4]: </span><span class="n">grid_x_name</span> <span class="o">=</span> <span