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Attention Scientists: All data posted on this website are preliminary. We are happy to share our data. If you use our data, please email us to let us know what you're doing. We would enjoy collaborating with you.
are found on the Our Data page.
The Trajectory files show predicted air mass paths as calculated using the NASA GSFC trajectory model (Schoeberl and Sparling, 1995) at three levels: 500, 1500, and 2500 m initial trajectory altitude. The 7-day back trajectories are run starting one day in the future from a uniform grid centered on Houston using 6-hourly 1X1 NCEP data, in forecast mode for future hours and in analysis mode for hours in the past.
Study Period 11 April - 31 May 2009
Note that trajectories in the boundary layer need to be interpreted with some caution and represent only possible air parcel paths.
Start Date |
7-days back from Houston, Texas (forecast/analysis mode) |
20090411 |
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20090412 |
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20090413 |
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20090414 |
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20090415 |
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20090416 |
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20090417 |
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20090418 |
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20090419 |
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20090420 |
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20090421 |
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20090422 |
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20090423 |
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20090424 |
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20090425 |
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20090426 |
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20090427 |
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20090428 |
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20090429 |
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20090430 |
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20090501 |
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20090502 |
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20090503 |
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20090504 |
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20090505 |
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20090506 |
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20090507 |
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20090508 |
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20090509 |
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20090510 |
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20090511 |
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20090512 |
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20090513 |
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20090514 |
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20090515 |
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20090516 |
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20090517 |
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20090518 |
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20090519 |
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20090520 |
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20090521 |
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20090522 |
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20090523 |
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20090524 |
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20090525 |
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20090526 |
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20090527 |
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20090528 |
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20090529 |
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20090530 |
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20090531 |
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