Long-term variations of atmospheric transmittance from ... - GEWEX
Long-term variations of atmospheric transmittance from ... - GEWEX
Long-term variations of atmospheric transmittance from ... - GEWEX
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• Diurnal <strong>variations</strong> between 09, 12 and 15LAT for each month are<br />
smaller than the range <strong>of</strong> the annual <strong>variations</strong> <strong>of</strong> monthly mean<br />
values.<br />
• The difference in the <strong>transmittance</strong> among each observation time<br />
within the same month is less than 0.02, while the difference between<br />
the largest and smallest months is much larger and reaches 0.13.<br />
• If a prolonged missing observations existed for several months, the<br />
seasonal <strong>variations</strong> could influence the annual means. This tendency<br />
must be taken into account for calculating the annual means.
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