본문

Overshooting Convection, Cirrus, and the Cold Point Tropopause in Global Storm-Resolving Models and Satellite Observations- [electronic resource]
Overshooting Convection, Cirrus, and the Cold Point Tropopause in Global Storm-Resolving M...
내용보기
Overshooting Convection, Cirrus, and the Cold Point Tropopause in Global Storm-Resolving Models and Satellite Observations- [electronic resource]
자료유형  
 학위논문파일 국외
최종처리일시  
20240214095843
ISBN  
9798380327343
DDC  
551.5
저자명  
Nugent, Jacqueline M.
서명/저자  
Overshooting Convection, Cirrus, and the Cold Point Tropopause in Global Storm-Resolving Models and Satellite Observations - [electronic resource]
발행사항  
[S.l.]: : University of Washington., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(90 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
주기사항  
Advisor: Bretherton, Christopher S.
학위논문주기  
Thesis (Ph.D.)--University of Washington, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약Processes occurring in upper troposphere-lower stratosphere region (UTLS), especially overshooting convection and radiative heating from thin cirrus, play a key role in the Earth's climate system. The cold point tropopause, defined as the coldest temperature between the upper troposphere and lower stratosphere, is particularly important for determining the moisture content of the lower stratosphere, which feeds back onto the surface warming rate. This work aims to address how the cold point tropopause, overshooting convection, and cirrus are related using five 40-day simulations of global storm-resolving models in addition to 4 years of active and passive satellite observations.We evaluate how convection that overshoots the cold point is distributed across the tropics and find that overshoots only somewhat favor warm land areas over warm ocean regions. The general geographic distribution in cold point overshoots is reproduced by the GSRMs. We also look at radiatively active cirrus near the cold point that are capable of producing a radiative heating rate strong enough to loft and cool the cold point. The GSRMs tend to simulate radiatively active cold point cirrus, as well as thin stratospheric cirrus, much less often than in the observations.Still, despite the differences in the details of how the models simulate cold point overshoots and cirrus, we find consistent relationships between the cold point, overshooting convection, and cirrus in the GSRMs over oceans. Areas with more frequent cold point overshoots were associated with cooler mean cold point temperatures and higher cold point heights. No significant relationship was found between the mean cold points and areas of more frequent radiatively active cold point cirrus, suggesting that this mechanism does not strongly influence the cold point temperature or height. Further work examining longer GSRM simulations is needed to better understand the role of cold point-overshooting convection and cirrus lofting in setting the cold point tropopause in the context of other UTLS processes.
일반주제명  
Atmospheric sciences.
일반주제명  
Remote sensing.
일반주제명  
Climate change.
키워드  
Overshooting convection
키워드  
Radiative heating
키워드  
Climate system
키워드  
Lower stratosphere
키워드  
Cold point
기타저자  
University of Washington Atmospheric Sciences
기본자료저록  
Dissertations Abstracts International. 85-03B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.
신착도서 더보기
최근 3년간 통계입니다.

소장정보

  • 예약
  • 소재불명신고
  • 나의폴더
  • 우선정리요청
  • 비도서대출신청
  • 야간 도서대출신청
소장자료
등록번호 청구기호 소장처 대출가능여부 대출정보
TF05508 전자도서
마이폴더 부재도서신고 비도서대출신청

* 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

해당 도서를 다른 이용자가 함께 대출한 도서

관련 인기도서

로그인 후 이용 가능합니다.