2016 Fiscal Year Final Research Report
Global observations of tropical atmospheric circulation with a suite of satellite instruments in search of "invisible wind"
Project/Area Number |
26610150
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Meteorology/Physical oceanography/Hydrology
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Research Institution | Nagoya University |
Principal Investigator |
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Keywords | 熱帯気象学 / 衛星リモートセンシング |
Outline of Final Research Achievements |
In this work, an algorithm to derive large-scale mean tropospheric updraft using satellite measurements such as temperature and humidity soundings in order to construct a dataset for use by a range of future studies of the tropical atmospheric circulation. A variety of satellites carrying hyperspectral infrared sounders and radars are analyzed to evaluate the atmospheric vertical motion on the basis of thermodynamic budget analysis. The estimations are confirmed to be consistent with the existing ground measurements of vertical velocity. In addition, a methodology was tested to quantify the contribution of cumulus mass flux to the driving mechanism of atmospheric circulation, which has opened a new pathway for future investigations.
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Free Research Field |
気象学・気候学
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