Plotting two interrelated variables over time

So I have data for the temperature at different depths over time. We collected data on 8 different days, so we have 8 sets of depths and 8 corresponding sets of temperatures (which can be found in 'D' and 'T' respectively). I ran datenum, datevec, and datestr ('N', 'V' and 'S') to get the time information, but I'm not sure how to plot time versus depth versus temperature.

Do I need to create a 'for' loop of some sort? In the file, I've separated 'D' into eight different, relevant files D1-D8 (ignore all other forms of D). Same goes for 'T' and 'T1-T8'. This may help with creating a loop.

Another idea I had was to make a meshgrid with N and xq, yielding the matrices X and Y

If I've not posted relevant information, please let me know and I will answer to the best of my abilities.

Thank you.

[Star Strider]

So we only need to concern ourselves with ‘DMat’ and ‘TMat’ (both (12x8))? Does that correspond to 8 days, 8 depths and 8 temperatures? What about date-time? Is there anything else? The others are not all the same lengths, so I don’t know what to do with them.