N49RF HRD GPS Dropwindsonde Scientist Log

Storm Ophelia                    Dropwindsonde Scientists John Kaplan, Sharan Majumdar
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Flight ID 050911N                Flight Director Tom Shepherd                                  Takeoff from MACDILL at   175240  UTC
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Mission ID 1616A OPHELIA         AVAPS Operators Jeff Smith/Dale Carpenter                     Recovery  at MACDILL at    0214   UTC
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| Drop    Sonde     Time    Lat    Lon  Surface   Wind closet       DLM        Comments                                            |
|  #      ID #      (UTC)   (°N)  (°W) Pressure   to surface        wind                                                           |
|                                        (mb)     dir/spd   hgt     (kt)                                                           |
|                                                 (kt)      (m)                (RH heating cycles except as noted)                 |
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|  1    002638101  184145  25.42  78.00 1015.4   315°  05     7   255°  10     Drop delayed to avoid land                          |
|  2    010715221  185450  26.98  77.94 1015.7   286°  09     7   270°  17     ~50% low Cu; intermittent winds in upper levels;    |
|                                                                              set winds missing 100-150 & 300-380 s; heaters off  |
|  3    010748049  191758  28.00  74.99 ------   226°  22   N/A   250°  22     Did not transmit to surface on channel #1--okay on  |
|                                                                              channel #5; no heights                              |
|  4    002615339  193214  28.07  73.06 1015.7   223°  23     7   230°  21     Heaters off                                         |
|  5    010715133  194805  29.89  72.92 ------   --------------   --------     Intermittent winds                                  |
|  5A   010715128  194944  29.85  72.70 1014.6   186°  20     8   215°  24     Heaters off                                         |
|  6    010715131  200321  29.00  71.00 1017.2   --------------   225°  15     Noisy GPS signal; no winds below ~825 mb; heaters   |
|                                                                              off                                                 |
|  7    002638100  202539  28.09  68.04 1019.5   206°  06     7   255°  12                                                         |
|  8    002638057  205240  31.00  67.00 1020.2   165°  12     8   295°  14     Wind gaps ~30-60 s and 500-540 s                    |
|  9    002638039  210952  32.84  67.12 1020.4    71°  12     8   320°  11                                                         |
|  10   000345655  213034  31.03  69.03 1019.1   112°  22     5   265°  09                                                         |
|  11   004255242  214543  31.20  70.92 1018.6    55°  19     5   205°  12     Heaters off; used 20 s filter for winds             |
|  12   004255281  220121  32.99  70.94 1018.8   117°  17     7   160°  07     Heaters off                                         |
|  13   010715220  221625  34.03  69.04 1020.9    89°  21     8     5°  05     False launch detect determined by Editsonde         |
|  14   002615606  223414  36.01  69.01 1023.7    66°  14     7   335°  14                                                         |
|  15   002615552  225308  37.96  70.05 1024.7    74°  13     8   355°  15                                                         |
|  16   010715227  231201  37.93  72.89 1024.6    96°  12     7    10°  12     False launch detect determined by Editsonde         |
|  17   002615338  232821  35.98  72.04 1022.5    79°  18     5    45°  06     Missing winds ~560-760 s; heaters off               |
|  18   010748044  234504  34.12  73.03 1018.4   102°  24     7   115°  15                                                         |
|  19   010715218  000632  35.81  74.99 ------   --------------    65°  17     Missing data from 630 s onward and sonde failed     |
|                                                                              below 700 mb on channel #2--okay on channel #5      |
|  20   010715224  002124  33.91  75.21 1016.5    77°  31     7    90°  28     Heaters off                                         |
|  21   002615602  003602  32.10  74.70 1011.5   132°  37     4   135°  38     35 kt sfc winds                                     |
|  22   010748055  005104  30.38  75.20 1005.2   189°  41     8   220°  42     40 kt sfc winds                                     |
|  23   010715207  010516  29.32  76.74 1010.7   241°  30     8   280°  31     Heaters off                                         |
|  24   010748050  011918  29.32  78.58 1014.1   353°  26     8   320°  22     Heaters off                                         |
|  25   051926221  013339  30.30  80.09 1015.9   --------------   345°  18     Late winds; no winds below 515 mb; heaters off      |
|  25A  043845065  013537  30.16  80.31 ------   --------------   --------     No winds 343-887 mb; heaters off                    |
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