Abstract Water vapor is an important minor constituent in the studies of the middle atmosphere for a variety of reasons, including its role as a source for active HOy chemicals and its use in analysis of transport processes. A number of in situ and remote techniques have been employed in the determination of water vapor distributions. Two of the more complete data sets have been used to develop an interim reference profile. First, there are the 7 months of Nimbus 7 LIMS data obtained during November 1978 to May 1979 over the range 64S to 84N latitude and from about 100-mb to 1-mb. By averaging radiances before retrieval, LIMS random errors have been reduced, and the results have been improved and extended recently from 1.5-mb to 0.5-mb. Secondly, the ground-based microwave emission technique has provided many profiles from 0.2-mb to 0.01-mb in the mid mesosphere at several fixed Northern Hemisphere mid latitude sites. These two data sets have been combined to give a mid latitude, interim reference water vapor profile for the entire vertical range of the middle atmosphere and with accuracies of better than 25 percent. The daily variability of stratospheric water vapor profiles about the monthly mean has also been established from these data sets for selected months. Information is also provided on the longitudinal variability of LIMS water vapor profiles about the daily, weekly, and monthly zonal means. Generally, the interim reference water vapor profile and its variability are consistent with prevailing ideas about chemistry and transport.


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    Titel :

    An interim reference model for the variability of the middle atmosphere water vapor distribution


    Beteiligte:
    Remsberg, E.E. (Autor:in) / Russell, J.M. III (Autor:in) / Wu, C.-Y. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1989-01-01


    Format / Umfang :

    14 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch