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Methodologies for Identifying and Understanding Cross-Timescale Interference & the Exposure, Use, and Trust of Climate Information in Colombia
Methodologies for Identifying and Understanding Cross-Timescale Interference & the Exposur...
Methodologies for Identifying and Understanding Cross-Timescale Interference & the Exposure, Use, and Trust of Climate Information in Colombia

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자료유형  
 학위논문 서양
최종처리일시  
20260202104708
ISBN  
9798286498437
DDC  
551.5
저자명  
DiSera, Laurel Anne.
서명/저자  
Methodologies for Identifying and Understanding Cross-Timescale Interference & the Exposure, Use, and Trust of Climate Information in Colombia
발행사항  
[Sl] : Columbia University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
180 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
주기사항  
Advisor: Munoz, Angel G.
학위논문주기  
Thesis (Ph.D.)--Columbia University, 2025.
초록/해제  
요약The research presented here is driven by the fundamental question, how does cross-timescale interference impact climate and society? The topic of cross-timescale interference is still relatively new in the literature and identifying new methods for evaluating such interferences will contribute to a deeper understanding of climate physics and allow for the improvement of climate models, enabling better prediction of the climate. Additionally, as new climate tools and more accurate forecasts are produced and becoming available to farmers, there is an ever-growing need to understand what tools are used or needed by communities to help identify changes in climate, such as cross-timescale interference. This dissertation comprises four chapters assessing these two knowledge gaps and contributes to the frontier of creating methodologies to understand cross-timescale interference.The first chapter analyzes the cross-timescale interference observed between ENSO and the MJO and compares the resulting rainfall composites to the 2015-2016 and 1997-1998 El Nino events, with the goal to identify if cross-timescale interference is visible in these two particular events. Results from Chapter 1 conclude that it is possible to identify cross-timescale interference between ENSO and the MJO through the use of compositing techniques and find that the contribution of cross-timescale interference varies based on ENSO event.The second chapter follows closely to the first, utilizing the same compositing techniques to produce rainfall composites, but focuses on the question of if and where the cross-timescale interference is linear or nonlinear. Adding to the conclusions of Chapter 1, Chapter 2 finds that it is possible to tease apart the linear and nonlinear contributions of cross-timescale interference, showing greater nonlinear interference during the 2015-2016 El Nino event than the 1997-1998 El Nino event. The third chapter is a case study of the 2020-2023 La Nina event that identifies whether or not climate driver interaction played a role in the formation and persistence of the three year long La Nina event. Chapter 3 concludes that the MJO interacted with the Indian Ocean Dipole (IOD) in late April and early June of 2019 to trigger a strong positive IOD event, which contributed to the onset of the three year-long La Nina event experienced from 2020-2023.The fourth chapter of this dissertation underscores the importance of field work to contextualize the work of climate scientists. Specifically, the research focused on the specific needs, trust in, and uses of climate information and services by farmers in rural Columbia. Chapter 4 concludes that farmers in Colombia still do not use or trust many of the climate services available to them, especially small farmers and coffee growers. However, through the use of local round table discussions (MTAs), rice farmers in northern Colombia have better utilized and incorporated climate information into their farming practices.
일반주제명  
Atmospheric sciences
일반주제명  
Climate change
일반주제명  
Meteorology
키워드  
Indian Ocean Dipole
키워드  
Cross-timescale interference
키워드  
Climate drivers
키워드  
Rainfall composites
키워드  
Compositing techniques
기타저자  
Columbia University Earth and Environmental Sciences
기본자료저록  
Dissertations Abstracts International. 87-01B.
전자적 위치 및 접속  
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■1001  ▼aDiSera,  Laurel  Anne.
■24510▼aMethodologies  for  Identifying  and  Understanding  Cross-Timescale  Interference  &  the  Exposure,  Use,  and  Trust  of  Climate  Information  in  Colombia
■260    ▼a[Sl]▼bColumbia  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a180  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-01,  Section:  B.
■500    ▼aAdvisor:  Munoz,  Angel  G.
■5021  ▼aThesis  (Ph.D.)--Columbia  University,  2025.
■520    ▼aThe  research  presented  here  is  driven  by  the  fundamental  question,  how  does  cross-timescale  interference  impact  climate  and  society?  The  topic  of  cross-timescale  interference  is  still  relatively  new  in  the  literature  and  identifying  new  methods  for  evaluating  such  interferences  will  contribute  to  a  deeper  understanding  of  climate  physics  and  allow  for  the  improvement  of  climate  models,  enabling  better  prediction  of  the  climate.  Additionally,  as  new  climate  tools  and  more  accurate  forecasts  are  produced  and  becoming  available  to  farmers,  there  is  an  ever-growing  need  to  understand  what  tools  are  used  or  needed  by  communities  to  help  identify  changes  in  climate,  such  as  cross-timescale  interference.  This  dissertation  comprises  four  chapters  assessing  these  two  knowledge  gaps  and  contributes  to  the  frontier  of  creating  methodologies  to  understand  cross-timescale  interference.The  first  chapter  analyzes  the  cross-timescale  interference  observed  between  ENSO  and  the  MJO  and  compares  the  resulting  rainfall  composites  to  the  2015-2016  and  1997-1998  El  Nino  events,  with  the  goal  to  identify  if  cross-timescale  interference  is  visible  in  these  two  particular  events.  Results  from  Chapter  1  conclude  that  it  is  possible  to  identify  cross-timescale  interference  between  ENSO  and  the  MJO  through  the  use  of  compositing  techniques  and  find  that  the  contribution  of  cross-timescale  interference  varies  based  on  ENSO  event.The  second  chapter  follows  closely  to  the  first,  utilizing  the  same  compositing  techniques  to  produce  rainfall  composites,  but  focuses  on  the  question  of  if  and  where  the  cross-timescale  interference  is  linear  or  nonlinear.  Adding  to  the  conclusions  of  Chapter  1,  Chapter  2  finds  that  it  is  possible  to  tease  apart  the  linear  and  nonlinear  contributions  of  cross-timescale  interference,  showing  greater  nonlinear  interference  during  the  2015-2016  El  Nino  event  than  the  1997-1998  El  Nino  event.  The  third  chapter  is  a  case  study  of  the  2020-2023  La  Nina  event  that  identifies  whether  or  not  climate  driver  interaction  played  a  role  in  the  formation  and  persistence  of  the  three  year  long  La  Nina  event.  Chapter  3  concludes  that  the  MJO  interacted  with  the  Indian  Ocean  Dipole  (IOD)  in  late  April  and  early  June  of  2019  to  trigger  a  strong  positive  IOD  event,  which  contributed  to  the  onset  of  the  three  year-long  La  Nina  event  experienced  from  2020-2023.The  fourth  chapter  of  this  dissertation  underscores  the  importance  of  field  work  to  contextualize  the  work  of  climate  scientists.  Specifically,  the  research  focused  on  the  specific  needs,  trust  in,  and  uses  of  climate  information  and  services  by  farmers  in  rural  Columbia.  Chapter  4  concludes  that  farmers  in  Colombia  still  do  not  use  or  trust  many  of  the  climate  services  available  to  them,  especially  small  farmers  and  coffee  growers.  However,  through  the  use  of  local  round  table  discussions  (MTAs),  rice  farmers  in  northern  Colombia  have  better  utilized  and  incorporated  climate  information  into  their  farming  practices.
■590    ▼aSchool  code:  0054.
■650  4▼aAtmospheric  sciences
■650  4▼aClimate  change
■650  4▼aMeteorology
■653    ▼aIndian  Ocean  Dipole
■653    ▼aCross-timescale  interference
■653    ▼aClimate  drivers
■653    ▼aRainfall  composites
■653    ▼aCompositing  techniques
■690    ▼a0725
■690    ▼a0404
■690    ▼a0557
■71020▼aColumbia  University▼bEarth  and  Environmental  Sciences.
■7730  ▼tDissertations  Abstracts  International▼g87-01B.
■790    ▼a0054
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358484▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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