Synoptic weather conditions and aerosol episodes over Indo-Gangetic Plains, India

D. G. Kaskaoutis, E. E. Houssos, D. Goto, A. Bartzokas, P. T. Nastos, P. R. Sinha, S. K. Kharol, P. G. Kosmopoulos, R. P. Singh, Toshihiko Takemura

    Research output: Contribution to journalArticle

    32 Citations (Scopus)

    Abstract

    The present study focuses on identifying the main atmospheric circulation characteristics associated with aerosol episodes (AEs) over Kanpur, India during the period 2001–2010. In this respect, mean sea level pressure (MSLP) and geopotential height of 700 hPa (Z700) data obtained from the NCEP/NCAR Reanalysis Project were used along with daily Terra-MODIS AOD550 data. The analysis identifies 277 AEs [AOD500 > (Formula presented.) 500 + 1STDEV (standard deviation)] over Kanpur corresponding to 13.2 % of the available AERONET dataset, which are seasonally distributed as 12.5, 9.1, 14.7 and 18.6 % for winter (Dec–Feb), pre-monsoon (Mar–May), monsoon (Jun–Sep) and post-monsoon (Oct–Nov), respectively. The post-monsoon and winter AEs are mostly related to anthropogenic emissions, in contrast to pre-monsoon and monsoon episodes when a significant component of dust is found. The multivariate statistical methods Factor and Cluster Analysis are applied on the dataset of the AEs days’ Z700 patterns over south Asia, to group them into discrete clusters. Six clusters are identified and for each of them the composite means for MSLP and Z700 as well as their anomalies from the mean 1981–2010 climatology are studied. Furthermore, the spatial distribution of Terra-MODIS AOD550 over Indian sub-continent is examined to identify aerosol hot-spot areas for each cluster, while the SPRINTARS model simulations reveal incapability in reproducing the large anthropogenic AOD, suggesting need of further improvement in model emission inventories. This work is the first performed over India aiming to analyze and group the atmospheric circulation patterns associated with AEs over Indo-Gangetic Plains and to explore the influence of meteorology on the accumulation of aerosols.

    Original languageEnglish
    Pages (from-to)2313-2331
    Number of pages19
    JournalClimate Dynamics
    Volume43
    Issue number9-10
    DOIs
    Publication statusPublished - Jan 1 2014

    Fingerprint

    monsoon
    aerosol
    sea level pressure
    atmospheric circulation
    MODIS
    winter
    emission inventory
    geopotential
    plain
    weather condition
    meteorology
    factor analysis
    climatology
    cluster analysis
    spatial distribution
    dust
    anomaly
    simulation

    All Science Journal Classification (ASJC) codes

    • Atmospheric Science

    Cite this

    Kaskaoutis, D. G., Houssos, E. E., Goto, D., Bartzokas, A., Nastos, P. T., Sinha, P. R., ... Takemura, T. (2014). Synoptic weather conditions and aerosol episodes over Indo-Gangetic Plains, India. Climate Dynamics, 43(9-10), 2313-2331. https://doi.org/10.1007/s00382-014-2055-2

    Synoptic weather conditions and aerosol episodes over Indo-Gangetic Plains, India. / Kaskaoutis, D. G.; Houssos, E. E.; Goto, D.; Bartzokas, A.; Nastos, P. T.; Sinha, P. R.; Kharol, S. K.; Kosmopoulos, P. G.; Singh, R. P.; Takemura, Toshihiko.

    In: Climate Dynamics, Vol. 43, No. 9-10, 01.01.2014, p. 2313-2331.

    Research output: Contribution to journalArticle

    Kaskaoutis, DG, Houssos, EE, Goto, D, Bartzokas, A, Nastos, PT, Sinha, PR, Kharol, SK, Kosmopoulos, PG, Singh, RP & Takemura, T 2014, 'Synoptic weather conditions and aerosol episodes over Indo-Gangetic Plains, India', Climate Dynamics, vol. 43, no. 9-10, pp. 2313-2331. https://doi.org/10.1007/s00382-014-2055-2
    Kaskaoutis DG, Houssos EE, Goto D, Bartzokas A, Nastos PT, Sinha PR et al. Synoptic weather conditions and aerosol episodes over Indo-Gangetic Plains, India. Climate Dynamics. 2014 Jan 1;43(9-10):2313-2331. https://doi.org/10.1007/s00382-014-2055-2
    Kaskaoutis, D. G. ; Houssos, E. E. ; Goto, D. ; Bartzokas, A. ; Nastos, P. T. ; Sinha, P. R. ; Kharol, S. K. ; Kosmopoulos, P. G. ; Singh, R. P. ; Takemura, Toshihiko. / Synoptic weather conditions and aerosol episodes over Indo-Gangetic Plains, India. In: Climate Dynamics. 2014 ; Vol. 43, No. 9-10. pp. 2313-2331.
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    AU - Nastos, P. T.

    AU - Sinha, P. R.

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