Multiyear ground‐based and satellite observations of aerosol properties over a tropical urban area in India
Aerosol particle size distributions along with their spatial and temporal variability are important for describing both direct and indirect radiative forcing. In this study, the variation of black carbon (BC) aerosols, total aerosol mass loading and aerosol optical depth (AOD) over an urban region o...
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| Veröffentlicht in: | Atmospheric science letters 2007-01, Vol.8 (1), p.7-13 |
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| creator | Badarinath, K. V. S. Kharol, Shailesh Kumar Latha, K. Madhavi Chand, T. R. Kiran Prasad, V. Krishna Jyothsna, A. Nirmala Samatha, K. |
| description | Aerosol particle size distributions along with their spatial and temporal variability are important for describing both direct and indirect radiative forcing. In this study, the variation of black carbon (BC) aerosols, total aerosol mass loading and aerosol optical depth (AOD) over an urban region of Hyderabad, south India, was analyzed for 3 consecutive years from 2003 to 2005. The AOD was measured using a handheld multichannel sun‐photometer at six wavelengths centered on 380, 440, 500, 675, 870 and 1020 nm and aerosol mass–size distribution was made using a quartz crystal microbalance (QCM) cascade impactor. In addition, satellite remote‐sensing data from nighttime DMSP‐OLS images were analyzed for inferring ancillary sources of aerosols. Results from temporal analysis (2004–2006) suggest that aerosol mass loading and BC mass concentration increased considerably over the 3‐year time‐period mainly due to increasing vehicular traffic from urban population growth. DMSP‐OLS nighttime images for different years suggested higher forest fire occurrences in the year 2004 compared to other years. The annual mean AOD at 550 nm from moderate resolution imaging spectroradiometer (MODIS) showed relatively high values during 2004. Copyright © 2007 Royal Meteorological Society |
| doi_str_mv | 10.1002/asl.143 |
| format | Article |
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V. S. ; Kharol, Shailesh Kumar ; Latha, K. Madhavi ; Chand, T. R. Kiran ; Prasad, V. Krishna ; Jyothsna, A. Nirmala ; Samatha, K.</creator><creatorcontrib>Badarinath, K. V. S. ; Kharol, Shailesh Kumar ; Latha, K. Madhavi ; Chand, T. R. Kiran ; Prasad, V. Krishna ; Jyothsna, A. Nirmala ; Samatha, K.</creatorcontrib><description>Aerosol particle size distributions along with their spatial and temporal variability are important for describing both direct and indirect radiative forcing. In this study, the variation of black carbon (BC) aerosols, total aerosol mass loading and aerosol optical depth (AOD) over an urban region of Hyderabad, south India, was analyzed for 3 consecutive years from 2003 to 2005. The AOD was measured using a handheld multichannel sun‐photometer at six wavelengths centered on 380, 440, 500, 675, 870 and 1020 nm and aerosol mass–size distribution was made using a quartz crystal microbalance (QCM) cascade impactor. In addition, satellite remote‐sensing data from nighttime DMSP‐OLS images were analyzed for inferring ancillary sources of aerosols. Results from temporal analysis (2004–2006) suggest that aerosol mass loading and BC mass concentration increased considerably over the 3‐year time‐period mainly due to increasing vehicular traffic from urban population growth. DMSP‐OLS nighttime images for different years suggested higher forest fire occurrences in the year 2004 compared to other years. The annual mean AOD at 550 nm from moderate resolution imaging spectroradiometer (MODIS) showed relatively high values during 2004. 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The AOD was measured using a handheld multichannel sun‐photometer at six wavelengths centered on 380, 440, 500, 675, 870 and 1020 nm and aerosol mass–size distribution was made using a quartz crystal microbalance (QCM) cascade impactor. In addition, satellite remote‐sensing data from nighttime DMSP‐OLS images were analyzed for inferring ancillary sources of aerosols. Results from temporal analysis (2004–2006) suggest that aerosol mass loading and BC mass concentration increased considerably over the 3‐year time‐period mainly due to increasing vehicular traffic from urban population growth. DMSP‐OLS nighttime images for different years suggested higher forest fire occurrences in the year 2004 compared to other years. The annual mean AOD at 550 nm from moderate resolution imaging spectroradiometer (MODIS) showed relatively high values during 2004. Copyright © 2007 Royal Meteorological Society</description><subject>Aerosol optical depth</subject><subject>Aerosol properties</subject><subject>Aerosols</subject><subject>Atmospheric aerosols</subject><subject>Black carbon</subject><subject>Carbon</subject><subject>Carbon aerosols</subject><subject>Climate change</subject><subject>Forest fires</subject><subject>Fossil fuels</subject><subject>Ground-based observation</subject><subject>industrial aerosol</subject><subject>MODIS</subject><subject>Night</subject><subject>Night-time</subject><subject>Nighttime</subject><subject>Optical analysis</subject><subject>Optical thickness</subject><subject>Particle size distribution</subject><subject>Photometers</subject><subject>Population growth</subject><subject>Quartz crystal microbalance</subject><subject>Quartz crystals</subject><subject>Radiative forcing</subject><subject>Remote sensing</subject><subject>Satellite imagery</subject><subject>Satellite observation</subject><subject>Satellites</subject><subject>Science</subject><subject>Size distribution</subject><subject>Spectroradiometers</subject><subject>Temporal variability</subject><subject>Temporal variations</subject><subject>Urban areas</subject><subject>Urban populations</subject><subject>Wavelengths</subject><issn>1530-261X</issn><issn>1530-261X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp10M1KAzEQB_AgCtYqvkJA0INszexHtnssxY9CxYM9eAuzm1lJ2W5qslvpzUfwGX0SU-pBBE8Jw4_hP3_GzkGMQIj4Bn0zgjQ5YAPIEhHFEl4Of_2P2Yn3SyEAUpkP2OqxbzqzJXT81dm-1V8fnyV60hxbzT121DSmI25LT26DnbGt57bmSM562_C1s2tynaEw3ZDjyLswMRU2vHclthwdITctn7Xa4Ck7qrHxdPbzDtni7nYxfYjmT_ez6WQeVQnIJKoTjIFKAboQqUxLTTAWGUABsdQ6H9eyysdprCnN41LkUAWMWsR1gbnMIBmyy_3akO6tJ9-plfFVuARbsr1XUMgkzbM8wIs_cGl714ZoKhFhUxzSyKCu9qoKN3tHtVo7s0K3VSDUrnMVOleh8yCv9_LdNLT9j6nJ83ynvwHnyoOs</recordid><startdate>200701</startdate><enddate>200701</enddate><creator>Badarinath, K. 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V. S.</au><au>Kharol, Shailesh Kumar</au><au>Latha, K. Madhavi</au><au>Chand, T. R. Kiran</au><au>Prasad, V. Krishna</au><au>Jyothsna, A. Nirmala</au><au>Samatha, K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Multiyear ground‐based and satellite observations of aerosol properties over a tropical urban area in India</atitle><jtitle>Atmospheric science letters</jtitle><date>2007-01</date><risdate>2007</risdate><volume>8</volume><issue>1</issue><spage>7</spage><epage>13</epage><pages>7-13</pages><issn>1530-261X</issn><eissn>1530-261X</eissn><abstract>Aerosol particle size distributions along with their spatial and temporal variability are important for describing both direct and indirect radiative forcing. In this study, the variation of black carbon (BC) aerosols, total aerosol mass loading and aerosol optical depth (AOD) over an urban region of Hyderabad, south India, was analyzed for 3 consecutive years from 2003 to 2005. The AOD was measured using a handheld multichannel sun‐photometer at six wavelengths centered on 380, 440, 500, 675, 870 and 1020 nm and aerosol mass–size distribution was made using a quartz crystal microbalance (QCM) cascade impactor. In addition, satellite remote‐sensing data from nighttime DMSP‐OLS images were analyzed for inferring ancillary sources of aerosols. Results from temporal analysis (2004–2006) suggest that aerosol mass loading and BC mass concentration increased considerably over the 3‐year time‐period mainly due to increasing vehicular traffic from urban population growth. DMSP‐OLS nighttime images for different years suggested higher forest fire occurrences in the year 2004 compared to other years. The annual mean AOD at 550 nm from moderate resolution imaging spectroradiometer (MODIS) showed relatively high values during 2004. Copyright © 2007 Royal Meteorological Society</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/asl.143</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Aerosol optical depth Aerosol properties Aerosols Atmospheric aerosols Black carbon Carbon Carbon aerosols Climate change Forest fires Fossil fuels Ground-based observation industrial aerosol MODIS Night Night-time Nighttime Optical analysis Optical thickness Particle size distribution Photometers Population growth Quartz crystal microbalance Quartz crystals Radiative forcing Remote sensing Satellite imagery Satellite observation Satellites Science Size distribution Spectroradiometers Temporal variability Temporal variations Urban areas Urban populations Wavelengths |
| title | Multiyear ground‐based and satellite observations of aerosol properties over a tropical urban area in India |
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