Arid
DOI10.1007/s12040-008-0030-1
Aircraft measurements of aerosol black carbon from a coastal location in the north-east part of peninsular India during ICARB
Babu, S. Suresh1; Satheesh, S. K.2; Moorthy, K. Krishna1; Dutt, C. B. S.3; Nair, Vijayakumar S.1; Alappattu, Denny P.1; Kunhikrishnan, P. K.1
通讯作者Babu, S. Suresh
来源期刊JOURNAL OF EARTH SYSTEM SCIENCE
ISSN0253-4126
EISSN0973-774X
出版年2008
卷号117页码:263-271
英文摘要

During (the Integrated Campaign for Aerosols, gases and Radiation Budget (ICARB) over India, I high-resolution airborne measurements of the attitude profiles of the mass concentrations (M-B) Of aerosol black carbon (BC) were made off Bhubaneswar (131311, 85.82 degrees E, 20.25 degrees N), over northwest B ay of Bengal, in the altitude region upto 3km. Such high-resolution measurements of altitude profiles of aerosols are done for the first time over India. The profiles showed a near-steady vertical I distribution of M-B modulated with two small peaks, one at 800 in and the other at similar to 2000 n(-1). High ) sonde (Vaisala) measurements around the same region resolution GPS (Global Positioning System onboard the research vessel Sagar Kanya (around the same time of the aircraft sortie) revealed two convectivelv well mixed layers one from ground to similar to 700m with an inversion at the top and the other extends from 1200 in to similar to 2000 in with a second inversion at similar to 2200 in and a Convectively stable region in the altitude range 700-1200 m. The observed peaks in the M-B profile are found to be associated with these temperature inversions. In addition, long-range transport from the Indo-Gangetic Plain (IGP) and deserts lying further to the west also influence the vertical profile of BC. Latitudinal variation of M-B Showed a remarkable land ocean contrast at the 500 in altitude (within the well mixed region) with remarkably lower values over oceans, suggesting the impact of strong In,sources over the mainland. However, above the ABL (at 1500m), the latitudinal variations were quite weak, and this appears to be resulting from the impact of long-range transport. Comparison of the altitude profiles of M-B over BoB off BBR, with those obtained during the earlier occasion over the inland stations of Hyderabad and Kanpur showed similarities above similar to 500m, with M-B remaining around a steady value of similar to 1 mu g m(-3). However, large differences are seen within the ABL. Even though the observed M-B values are not unusually high, their near constancy in the vertical column will have important implications to radiative forcing.


英文关键词aerosol black carbon vertical profile ICARB
类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000258534800003
WOS关键词LOWER STRATOSPHERE ; ARCTIC HAZE ; SOOT ; ABSORPTION ; SULFATE ; OCEAN ; LIGHT
WOS类目Geosciences, Multidisciplinary ; Multidisciplinary Sciences
WOS研究方向Geology ; Science & Technology - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/158097
作者单位1.Vikram Sarabhai Space Ctr, Space Phys Lab, Trivandrum 695022, Kerala, India;
2.Indian Inst Sci, Ctr Atmospher & Ocean Sci, Bangalore 560012, Karnataka, India;
3.Indian Space Res Org Head Quarters, Bangalore 560094, Karnataka, India
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Babu, S. Suresh,Satheesh, S. K.,Moorthy, K. Krishna,et al. Aircraft measurements of aerosol black carbon from a coastal location in the north-east part of peninsular India during ICARB[J],2008,117:263-271.
APA Babu, S. Suresh.,Satheesh, S. K..,Moorthy, K. Krishna.,Dutt, C. B. S..,Nair, Vijayakumar S..,...&Kunhikrishnan, P. K..(2008).Aircraft measurements of aerosol black carbon from a coastal location in the north-east part of peninsular India during ICARB.JOURNAL OF EARTH SYSTEM SCIENCE,117,263-271.
MLA Babu, S. Suresh,et al."Aircraft measurements of aerosol black carbon from a coastal location in the north-east part of peninsular India during ICARB".JOURNAL OF EARTH SYSTEM SCIENCE 117(2008):263-271.
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