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Investigating Paleoclimate Questions Using an Isotope-enabled Earth System Model: The Water Isotopeâl "Temperature Relationship and the Glacial Enso Strength
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| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Investigating Paleoclimate Questions Using an Isotope-enabled Earth System Model: The Water Isotopeâl "Temperature Relationship and the Glacial Enso Strength. |
| 개인저자 | Zhu, Jiang. |
| 단체저자명 | The University of Wisconsin - Madison. Atmospheric & Oceanic Sciences. |
| 발행사항 | [S.l.]: The University of Wisconsin - Madison., 2017. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2017. |
| 형태사항 | 141 p. |
| 기본자료 저록 | Dissertation Abstracts International 80-01B(E). Dissertation Abstract International |
| ISBN | 9780438373860 |
| 학위논문주기 | Thesis (Ph.D.)--The University of Wisconsin - Madison, 2017. |
| 일반주기 |
Source: Dissertation Abstracts International, Volume: 80-01(E), Section: B.
Adviser: Zhengyu Liu. |
| 요약 | Paleoclimate reconstructions can help us learn the evolution of climate mean state and variability in the past, understand mechanisms for climate change, and test the climate models that are extensively used for future climate projections. Howev |
| 요약 | To overcome this obstacle, my PhD work involves developing a fully coupled water isotope-enabled Community Earth System Model (iCESM) in collaboration with other scientists. The physical climate of the iCESM is one of the best state-of-the-art f |
| 요약 | With the water-isotope capability of the iCESM, I have investigated the following scientific questions: (1) How and why the water isotope--temperature relationship in Greenland ice cores varies during abrupt climate changes |
| 요약 | (1) Isotope--temperature relationship. For more than 50 years, water isotope values (e.g., delta18O) in ice cores have provided a tremendous amount of information about the Earth climate history during the late Quaternary. Initially based on a " |
| 요약 | In my PhD study, I have quantitatively studied the changes in delta 18O--temperature relationship over Greenland in response to varied climatic forcings using the iCESM. I found that the temporal slope in Greenland increases significantly with t |
| 요약 | (2) ENSO variability at the LGM. Despite its paramount importance in climate system, the response of ENSO to anthropogenic global warming is still inconclusive in recent climate models. Studying the ENSO strength in the past can serve as a testb |
| 요약 | Here, for the first time, I have directly compared modeled water isotopes in the iCESM with the IFA records. Synthesizing evidence from both models and reconstructions, it is found that ENSO at the LGM is most likely weaker than that of the prei |
| 일반주제명 | Atmospheric sciences. Paleoclimate science. Climate change. |
| 언어 | 영어 |
| 바로가기 | 
: 이 자료의 원문은 한국교육학술정보원에서 제공합니다. |
