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A multi-sensor climatological view of double ITCZs over the Indian Ocean
SMHI, Research Department, Atmospheric remote sensing.ORCID iD: 0000-0002-6717-8343
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2012 (English)In: International Journal of Remote Sensing, ISSN 0143-1161, E-ISSN 1366-5901, Vol. 33, no 9, 2925-2936 p.Article in journal (Refereed) Published
Abstract [en]

We characterize the climatological features of the double inter-tropical convergence zones (DITCZs) over the western Indian Ocean during November-December by a synergistic analysis of the Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite (HOAPS III) data (1988-2005) and the National Aeronautics and Space Administration's (NASA's) A-Train data (2002-2009). We investigate rainfall, freshwater flux and cloud liquid water, cloud fraction and relative humidity over the DITCZs. In addition, the daily rainfall data from the Global Precipitation Climatology Project (GPCP) are used to document the DITCZs during the El Nino southern oscillation (ENSO) events. An analysis of the GPCP data shows that the DITCZs are clearly discernible during strong ENSO events (1997, 2002 and 2006), in sharp contrast to the DITCZs in the eastern Pacific Ocean, where they are absent during ENSOs. Further, these convergence zones on either side of the equator are of short duration, approximately 3-6 pentads during November and December. All satellite sensor data sets consistently capture the major features of DITCZs. As an accurate simulation of DITCZs in coupled global climate models remains a challenge, the results from the present study would provide a platform for evaluating these models.

Place, publisher, year, edition, pages
2012. Vol. 33, no 9, 2925-2936 p.
National Category
Meteorology and Atmospheric Sciences
Research subject
Remote sensing
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URN: urn:nbn:se:smhi:diva-485DOI: 10.1080/01431161.2011.625056ISI: 000302162800014OAI: oai:DiVA.org:smhi-485DiVA: diva2:805248
Available from: 2015-04-15 Created: 2015-04-14 Last updated: 2016-04-07Bibliographically approved

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Devasthale, Abhay
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
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  • Other locale
More languages
Output format
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