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Examining Spatial and Temporal Changes in Refractive Conditions

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Presentation on theme: "Examining Spatial and Temporal Changes in Refractive Conditions"— Presentation transcript:

1 Examining Spatial and Temporal Changes in Refractive Conditions
ENS Theodore Dorics 16 SEP 01 OC 3570

2 Data Collection Time Range: 02 AUG 17Z – 08 AUG 22Z
Spatial Range: N N 123.22W – W

3 Data Analysis 20 upper-air soundings analyzed
M-unit profiles generated Focus on lowest 2000 meters Lowest height of most significant trapping layer determined

4 “Significant” Trapping Layer
A negative gradient of at least 1 M-unit per 10 meters of height underlying a positive gradient meeting the same criteria. At least 100 m total thickness.

5

6

7

8

9 Data Distribution 36N 34N 122W 120W

10 Conclusions Decrease in trapping layer height with time.
increase in latitude. increase in longitude.

11 QUESTIONS?

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