Fractional contribution to total brightness increase in six AIA EUV channels attributed to plasma with log T ≤ 5.85. For this investigation our temperature range is constrained to that available to CDS, namely, 4.67  ≤  log T ≤ 6.89. We increased AIA’s 94 Å channel’s low-temperature (4.65  ≤  log T ≤ 5.85) sensitivity by a factor of 5 to compensate for its known underestimate of its low-temperature sensitivity; this is plotted as the upper (lighter color) curve in frame a), as described further in the text.