Introduction

The following set of 8 graphs are meant to show how MTP's T(z) profiles are doing, as measured by RAOBs.  All comparisons are for the single flight DC991216, from Sweden to California.  

Figure 1.  Plot of T(z) from MTP's MP-file and RAOB T(z), for passage near site BGT (Greenland).

Figure 2.  Plot of T(z) from MTP's MP-file and RAOB T(z), for passage between sites YCB and YBK, (northern Canada).

Figure 3.  Plot of T(z) from MTP's MP-file and RAOB T(z), for passage near site YSM (middle Canada, northern border of Saskatchewan).

Figure 4.  Plot of T(z) from MTP's MP-file and RAOB T(z), for passage near site WSE (Edmonton, Canada).

Figure 5.  Plot of T(z) from MTP's MP-file and RAOB T(z), for passage near site GEG (norhtern Idaho).

Figure 6.  Plot of T(z) from MTP's MP-file and RAOB T(z), for passage near site BOI (Boise, Idaho).

Figure 7.  Plot of T(z) from MTP's MP-file and RAOB T(z), for passage near site EKO (Nevada).

Figure 8.  Plot of T(z) from MTP's MP-file and RAOB T(z), for passage near site DRA (Nevada).

In the above set of 8 comparisons of MTP's T(z) with RAOB profiles there is a pattern of "MTP too warm" from 13 to 20 km.  I can think of two alternative explanations:  1) the temperature field encountered was colder than the archive average used for calculating retrieval coefficients, and 2) the MTP/DC8 window corrections are incorrect.
 

This site opened:  January 25, 2000.  Last Update: January 25, 2000