Cloud observations are performed routinely for synoptic and aeronautical purposes (WMO, 1996; ICA...
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For many years sunshine hours have been recorded using manually operated meteorological stations....
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The second Cabauw Intercomparison of Nitrogen Dioxide measuring Instruments (CINDI-2) took place ...
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Satellite-based retrievals of tropospheric NO2 columns are widely used to infer NOx (≡ NO + NO2) ...
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The U.S. Maury Collection (1796 1861), further denoted as MC, has been digitized in China during ...
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