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Stratospheric Transport Changes Forced By Tropical Sea Surface Temperature Perturbation: Idealized Simulation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yang, Huang |
| Copyright Year | 2013 |
| Abstract | The structure of mass transport in the stratosphere, as well as its dynamic behaviors, is explored by imposing idealized sea surface temperature (SST) perturbations in an aqua-planet model. Mass transport within stratosphere is simultaneously running through two processes: the diabatic circulation, also well known as the Brewer-Dobson Circulation (BDC), advecting air mass across isentropic surfaces, and the quasi-horizontal mixing ventilating air mass along isentropic surfaces. It is shown that, with an equatorial SST heating, the stratospheric transport will increase in strength, in a circumstance with both BDC and high-latitude isentropic mixing being accelerated. Behaviors of transport, for both BDC and isentropic mixing, turn out to be with more complexities when the imposed SST perturbation being relocated at different ranges of latitudes or expanding itself with larger longitudinal span. Dynamic diagnostics further relate the changes of stratospheric transport mainly to the changes of eddies, which are originated from the induction of SST perturbation. BIOGRAPHICAL SKETCH Huang Yang was born in downtown Changsha City, Hunan, China and graduated from Yali Middle School, a well-known local educational institute first founded by Yale University back in 1906. During his school years, he found his interest in earth sciences and potential in physics. That becomes his initial motivation to pursue an academic career in the Atmospheric Sciences, an interdisciplinary field with both his beloved two subjects deeply involved. Upon graduation from high school, he enrolled at the Nanjing University in the School of Atmospheric Sciences and earned a Bachelor Degree of Science in Meteorology through four years of study there. At his senior year, he got the opportunity to work with Dr. Ming Bao to investigate the remote forcing, from the Indian Ocean, on the anomalies in the East-Asia monsoon in a case of summer 1991. This research helped him attain a basic understanding about large-scale Climate Dynamics as well as strengthen his belief to devote himself further onto this amazing subject. During the same time, he applied and was very luckily accepted by the Department of Earth and Atmospheric Sciences at Cornell University. After the summer 2010, he flew half of the hemisphere to reach town of Ithaca, and worked as a graduate student with Dr. Gang Chen afterwards on the project of stratospheric mass transport, which turns into the topic of this thesis. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ecommons.cornell.edu/bitstream/handle/1813/33772/hy337.pdf?isAllowed=y&sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
