31 2110 Heaps, Burris, Schoeberl, Lait NASA GSFC Code 916 Goddard Methane Lidar on board the NASA DC-8 TOTE/VOTE 1 1 1996 01 24 1996 09 26 0.0 0.0 Remote sensing altitude (meters) Elapsed UT seconds from 0 hours on flight date 2 0.100000 0.0100000 999999 999999 Methane (ppmv) Methane Uncertainty (1-sigma) 4 1.0 0.0100000 0.0100000 1.00000 999 999999 999999 999999 Number of data altitude levels Latitude (degrees North) Longitude (degrees East) Time interval over which data were taken (s) 0 7 Methane values are scaled to 1.7 ppm at the aircraft altitude A slightly more sophisticated algorithm which uses DACOM values for scaling is still under development. Methane values in the tropics may have erroneolusly high values due to subvisible cirrus contamination. See Browell data for location of these clouds. An algorithm to correct for this is also in the works. 9980.4 008 4014 -11931 534 11405 16 1 12305 14 2 13205 14 3 14105 13 5 15005 11 6 15905 10 9 16805 10 7 17705 10 7 10669.9 008 4141 -11857 693 11405 16 1 12305 13 2 13205 13 3 14105 13 5 15005 11 6 15905 12 9 16805 10 7 17705 10 7 11831.5 008 4331 -11665 668 11405 16 1 12305 14 2 13205 13 3 14105 13 5 15005 12 7 15905 12 10 16805 11 8 17705 11 8 12548.0 008 4437 -11502 611 11410 15 2 12310 14 2 13210 13 4 14110 13 5 15010 11 7 15910 10 10 16810 11 8 17710 11 8 13727.0 008 4628 -11273 383 12497 16 2 13397 15 3 14297 14 5 15197 13 7 16097 14 10 16997 9 13 17897 13 10 18797 13 10 14883.5 008 4818 -11050 536 12629 16 2 13529 15 3 14429 14 4 15329 15 6 16229 13 8 17129 13 11 18029 13 10 18929 13 10 16539.6 008 5083 -10682 382 12626 16 2 13526 14 3 14426 14 5 15326 14 7 16226 10 9 17126 9 13 18026 10 9 18926 10 9 17315.6 008 5198 -10488 536 12626 16 2 13526 14 2 14426 13 4 15326 13 5 16226 11 8 17126 10 11 18026 10 9 18926 10 9 17951.6 008 5288 -10323 582 12625 16 2 13525 15 3 14425 14 4 15325 13 6 16225 13 8 17125 13 11 18025 11 10 18925 11 10 18501.1 008 5363 -10178 365 12627 16 3 13527 15 4 14427 13 6 15327 13 8 16227 12 11 17127 12 16 18027 11 10 18927 11 10 19248.6 008 5470 -9984 668 12626 16 2 13526 14 2 14426 14 4 15326 12 5 16226 11 7 17126 12 11 18026 14 10 18926 14 10 19889.1 008 5567 -9816 459 12631 16 2 13531 14 3 14431 13 4 15331 14 6 16231 13 9 17131 13 13 18031 14 10 18931 14 10 24265.7 008 6302 -9651 564 13233 16 2 14133 14 3 15033 12 4 15933 13 7 16833 11 9 17733 12 14 18633 10 15 19533 10 15