FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4254673231> ?p ?o ?g. }

• W4254673231 abstract "Abstract. We present aerosol and trace gas profiles derived from MAX-DOAS observations. Our inversion scheme is based on simple profile parameterisations used as input for an atmospheric radiative transfer model (forward model). From a least squares fit of the forward model to the MAX-DOAS measurements, two profile parameters are retrieved including integrated quantities (aerosol optical depth or trace gas vertical column density), and parameters describing the height and shape of the respective profiles. From these results, the aerosol extinction and trace gas mixing ratios can also be calculated. We apply the profile inversion to MAX-DOAS observations during a measurement campaign in Milano, Italy, September 2003, which allowed simultaneous observations from three telescopes (directed to north, west, south). Profile inversions for aerosols and trace gases were possible on 23 days. Especially in the middle of the campaign (17–20 September 2003), enhanced values of aerosol optical depth and NO2 and HCHO mixing ratios were found. The retrieved layer heights were typically similar for HCHO and aerosols. For NO2, lower layer heights were found, which increased during the day. The MAX-DOAS inversion results are compared to independent measurements: (1) aerosol optical depth measured at an AERONET station at Ispra; (2) near-surface NO2 and HCHO (formaldehyde) mixing ratios measured by long path DOAS and Hantzsch instruments at Bresso; (3) vertical profiles of HCHO and aerosols measured by an ultra light aircraft. Depending on the viewing direction, the aerosol optical depths from MAX-DOAS are either smaller or larger than those from AERONET observations. Similar comparison results are found for the MAX-DOAS NO2 mixing ratios versus long path DOAS measurements. In contrast, the MAX-DOAS HCHO mixing ratios are generally higher than those from long path DOAS or Hantzsch instruments. The comparison of the HCHO and aerosol profiles from the aircraft showed reasonable agreement with the respective MAX-DOAS layer heights. From the comparison of the results for the different telescopes, it was possible to investigate the internal consistency of the MAX-DOAS observations. As part of our study, a cloud classification algorithm was developed (based on the MAX-DOAS zenith viewing directions), and the effects of clouds on the profile inversion were investigated. Different effects of clouds on aerosols and trace gas retrievals were found: while the aerosol optical depth is systematically underestimated and the HCHO mixing ratio is systematically overestimated under cloudy conditions, the NO2 mixing ratios are only slightly affected. These findings are in basic agreement with radiative transfer simulations." @default.
• W4254673231 created "2022-05-12" @default.
• W4254673231 creator A5004937723 @default.
• W4254673231 creator A5010939838 @default.
• W4254673231 creator A5014935609 @default.
• W4254673231 creator A5028066676 @default.
• W4254673231 creator A5033109996 @default.
• W4254673231 creator A5048589989 @default.
• W4254673231 creator A5048752805 @default.
• W4254673231 creator A5057840118 @default.
• W4254673231 creator A5071369714 @default.
• W4254673231 creator A5074387864 @default.
• W4254673231 creator A5082105225 @default.
• W4254673231 creator A5090403652 @default.
• W4254673231 date "2011-06-22" @default.
• W4254673231 modified "2023-10-18" @default.
• W4254673231 title "Inversion of tropospheric profiles of aerosol extinction and HCHO and NO₂ mixing ratios from MAX-DOAS observations in Milano during the summer of 2003 and comparison with independent data sets" @default.
• W4254673231 cites W109144173 @default.
• W4254673231 cites W1965078933 @default.
• W4254673231 cites W1986498195 @default.
• W4254673231 cites W1987864526 @default.
• W4254673231 cites W1992209194 @default.
• W4254673231 cites W2002103857 @default.
• W4254673231 cites W2012247153 @default.
• W4254673231 cites W2041040779 @default.
• W4254673231 cites W2049476640 @default.
• W4254673231 cites W2050327126 @default.
• W4254673231 cites W2056813964 @default.
• W4254673231 cites W2066725064 @default.
• W4254673231 cites W2080432903 @default.
• W4254673231 cites W2088942450 @default.
• W4254673231 cites W2094601972 @default.
• W4254673231 cites W2097764177 @default.
• W4254673231 cites W2099064132 @default.
• W4254673231 cites W2104136056 @default.
• W4254673231 cites W2105970143 @default.
• W4254673231 cites W2108976697 @default.
• W4254673231 cites W2110960965 @default.
• W4254673231 cites W2113726439 @default.
• W4254673231 cites W2114742453 @default.
• W4254673231 cites W2140216979 @default.
• W4254673231 cites W2145857138 @default.
• W4254673231 cites W2147383410 @default.
• W4254673231 cites W2147484825 @default.
• W4254673231 cites W2148351137 @default.
• W4254673231 cites W2156530953 @default.
• W4254673231 cites W2159467620 @default.
• W4254673231 cites W2165930989 @default.
• W4254673231 cites W2166627837 @default.
• W4254673231 cites W2167929905 @default.
• W4254673231 cites W2175475718 @default.
• W4254673231 cites W4240733927 @default.
• W4254673231 doi "https://doi.org/10.5194/amtd-4-3891-2011" @default.
• W4254673231 hasPublicationYear "2011" @default.
• W4254673231 type Work @default.
• W4254673231 citedByCount "10" @default.
• W4254673231 countsByYear W42546732312012 @default.
• W4254673231 countsByYear W42546732312013 @default.
• W4254673231 crossrefType "posted-content" @default.
• W4254673231 hasAuthorship W4254673231A5004937723 @default.
• W4254673231 hasAuthorship W4254673231A5010939838 @default.
• W4254673231 hasAuthorship W4254673231A5014935609 @default.
• W4254673231 hasAuthorship W4254673231A5028066676 @default.
• W4254673231 hasAuthorship W4254673231A5033109996 @default.
• W4254673231 hasAuthorship W4254673231A5048589989 @default.
• W4254673231 hasAuthorship W4254673231A5048752805 @default.
• W4254673231 hasAuthorship W4254673231A5057840118 @default.
• W4254673231 hasAuthorship W4254673231A5071369714 @default.
• W4254673231 hasAuthorship W4254673231A5074387864 @default.
• W4254673231 hasAuthorship W4254673231A5082105225 @default.
• W4254673231 hasAuthorship W4254673231A5090403652 @default.
• W4254673231 hasBestOaLocation W42546732311 @default.
• W4254673231 hasConcept C109007969 @default.
• W4254673231 hasConcept C120665830 @default.
• W4254673231 hasConcept C121332964 @default.
• W4254673231 hasConcept C127313418 @default.
• W4254673231 hasConcept C130047971 @default.
• W4254673231 hasConcept C151730666 @default.
• W4254673231 hasConcept C153294291 @default.
• W4254673231 hasConcept C18459110 @default.
• W4254673231 hasConcept C1893757 @default.
• W4254673231 hasConcept C199390426 @default.
• W4254673231 hasConcept C2777634575 @default.
• W4254673231 hasConcept C2779345167 @default.
• W4254673231 hasConcept C39432304 @default.
• W4254673231 hasConcept C74902906 @default.
• W4254673231 hasConcept C9075549 @default.
• W4254673231 hasConcept C91586092 @default.
• W4254673231 hasConceptScore W4254673231C109007969 @default.
• W4254673231 hasConceptScore W4254673231C120665830 @default.
• W4254673231 hasConceptScore W4254673231C121332964 @default.
• W4254673231 hasConceptScore W4254673231C127313418 @default.
• W4254673231 hasConceptScore W4254673231C130047971 @default.
• W4254673231 hasConceptScore W4254673231C151730666 @default.
• W4254673231 hasConceptScore W4254673231C153294291 @default.
• W4254673231 hasConceptScore W4254673231C18459110 @default.
• W4254673231 hasConceptScore W4254673231C1893757 @default.
• W4254673231 hasConceptScore W4254673231C199390426 @default.
• W4254673231 hasConceptScore W4254673231C2777634575 @default.
• W4254673231 hasConceptScore W4254673231C2779345167 @default.

• next