Integrated Campaign for Aerosols, gases and Radiation Budget (ICARB): An overview

Journal of Earth system science

C B S Dutt3³  S K Satheesh2¹  S Suresh Babu1²  K Krishna Moorthy1² 

[1] Centre for Atmospheric and Oceanic Sciences, Indian Institute of Science, Bangalore 560 012, India.$$;Space Physics Laboratory, Vikram Sarabhai Space Centre, Trivandrum 695 022, India.$$;Indian Space Research Organisation Head Quarters, New BEL Road, Bangalore 560 094, India.$$

关键词: ICARB;    atmospheric aerosols;    radiative forcing;    Bay of Bengal and Arabian Sea aerosols;    altitude profiles;    Micro Pulse Lidar.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

During March–May 2006, an extensive, multi-institution, multi-instrument, and multi-platform integrated field experiment ‘Integrated Campaign for Aerosols, gases and Radiation Budget’ (ICARB) was carried out under the Geosphere Biosphere Programme of the Indian Space Research Organization (ISRO-GBP). The objective of this largest and most exhaustive field campaign, ever conducted in the Indian region, was to characterize the physico-chemical properties and radiative effects of atmospheric aerosols and trace gases over the Indian landmass and the adjoining oceanic regions of the Arabian Sea, northern Indian Ocean, and Bay of Bengal through intensive, simultaneous observations. A network of ground-based observatories (over the mainland and islands), a dedicated ship cruise over the oceanic regions using a fully equipped research vessel, the Sagar Kanya, and altitude profiling over selected regions using an instrumented aircraft and balloonsondes formed the three segments of this integrated experiment, which were carried out in tandem. This paper presents an overview of the ICARB field experiment, the database generated, and some of its interesting outcomes though these are preliminary in nature.The ICARB has revealed significant spatio-temporal heterogeneity in most of the aerosol characteristics both over land and ocean. Observed aerosol loading and optical depths were comparable to or in certain regions, a little lower than those reported in some of the earlier campaigns for these regions. The preliminary results indicate:low (> 0.2) aerosol optical depths (AOD) over most part of the Arabian Sea, except two pockets; one off Mangalore and the other, less intense, in the central Arabian Sea at ∼18° N latitude;

【 授权许可】

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