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Digital Image 5-2<br>Interpretation map of the ATI image of the San Rafael Swell, Utah (see Digital Image 5-1). Plateau terrain has high elevation and is relatively cool both day and night (little temperature change or low ΔT) so the ATI values are high (light tones on Digital Image 5-1). Windblown sand has a very low density and a low thermal inertia (Table 5-5) that cause high daytime and low nighttime temperatures (high ΔT) and a low ATI value (dark tones on Digital Image 5-1).
Digital Image 5-2
Interpretation map of the ATI image of the San Rafael Swell, Utah (see Digital Image 5-1). Plateau terrain has high elevation and is relatively cool both day and night (little temperature change or low ΔT) so the ATI values are high (light tones on Digital Image 5-1). Windblown sand has a very low density and a low thermal inertia (Table 5-5) that cause high daytime and low nighttime temperatures (high ΔT) and a low ATI value (dark tones on Digital Image 5-1).

Image 14 of 46

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