EVALUATION OF THE PALEOCLIMATE MODELING INTERCOMPARISON PROJECT PHASE 4 (PMIP4) MODELS IN SIMULATING THE CONTRACTION OF INDO-PACIFIC WARM POOL BETWEEN THE MID-HOLOCENE AND MODERN PERIODS

The Indo-Pacific Warm Pool (IPWP) plays an important role in influencing Asian climate and global-scale climate change. Uncertainties in future climate projections drive the need of reliable climate models that capable of accurately simulating past climate conditions. This study compares simul...

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Main Author: Wulan Darojati, Fitri
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/84956
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:84956
spelling id-itb.:849562024-08-19T11:37:26ZEVALUATION OF THE PALEOCLIMATE MODELING INTERCOMPARISON PROJECT PHASE 4 (PMIP4) MODELS IN SIMULATING THE CONTRACTION OF INDO-PACIFIC WARM POOL BETWEEN THE MID-HOLOCENE AND MODERN PERIODS Wulan Darojati, Fitri Indonesia Final Project IPWP, Mid-Holocene, proxy, PMIP4, Cohen’s Kappa INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/84956 The Indo-Pacific Warm Pool (IPWP) plays an important role in influencing Asian climate and global-scale climate change. Uncertainties in future climate projections drive the need of reliable climate models that capable of accurately simulating past climate conditions. This study compares simulated sea surface temperature (SST) changes in the IPWP during the Mid-Holocene relative to preindustrial conditions from the Paleoclimate Modelling Intercomparison Project phase 4 (PMIP4) models with natural archive proxy SST data using Weighted Cohen's Kappa (??). Proxy SST data indicate cooling in the western and eastern parts of IPWP and warming in the central region. In contrast, annual-mean simulations from all models show cooling across the IPWP, likely due to greenhouse gas forcing. However, for the December-January-February (DJF) seasonal average, some models simulate warming in the central IPWP, while most models simulate cooling in the March-April-May (MAM) and June-July-August (JJA) seasons across the IPWP. During September-October-November (SON), most of the IPWP shows warming. The Climate Earth System Model, version 2 (CESM2) in DJF showed the best simulation results of all models with a value of ?? = 0,4088. The low Cohen's Kappa value for the annual mean indicates that the PMIP4 models employed are unable to adequately capture the contraction of the IPWP during the Mid-Holocene text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
description The Indo-Pacific Warm Pool (IPWP) plays an important role in influencing Asian climate and global-scale climate change. Uncertainties in future climate projections drive the need of reliable climate models that capable of accurately simulating past climate conditions. This study compares simulated sea surface temperature (SST) changes in the IPWP during the Mid-Holocene relative to preindustrial conditions from the Paleoclimate Modelling Intercomparison Project phase 4 (PMIP4) models with natural archive proxy SST data using Weighted Cohen's Kappa (??). Proxy SST data indicate cooling in the western and eastern parts of IPWP and warming in the central region. In contrast, annual-mean simulations from all models show cooling across the IPWP, likely due to greenhouse gas forcing. However, for the December-January-February (DJF) seasonal average, some models simulate warming in the central IPWP, while most models simulate cooling in the March-April-May (MAM) and June-July-August (JJA) seasons across the IPWP. During September-October-November (SON), most of the IPWP shows warming. The Climate Earth System Model, version 2 (CESM2) in DJF showed the best simulation results of all models with a value of ?? = 0,4088. The low Cohen's Kappa value for the annual mean indicates that the PMIP4 models employed are unable to adequately capture the contraction of the IPWP during the Mid-Holocene
format Final Project
author Wulan Darojati, Fitri
spellingShingle Wulan Darojati, Fitri
EVALUATION OF THE PALEOCLIMATE MODELING INTERCOMPARISON PROJECT PHASE 4 (PMIP4) MODELS IN SIMULATING THE CONTRACTION OF INDO-PACIFIC WARM POOL BETWEEN THE MID-HOLOCENE AND MODERN PERIODS
author_facet Wulan Darojati, Fitri
author_sort Wulan Darojati, Fitri
title EVALUATION OF THE PALEOCLIMATE MODELING INTERCOMPARISON PROJECT PHASE 4 (PMIP4) MODELS IN SIMULATING THE CONTRACTION OF INDO-PACIFIC WARM POOL BETWEEN THE MID-HOLOCENE AND MODERN PERIODS
title_short EVALUATION OF THE PALEOCLIMATE MODELING INTERCOMPARISON PROJECT PHASE 4 (PMIP4) MODELS IN SIMULATING THE CONTRACTION OF INDO-PACIFIC WARM POOL BETWEEN THE MID-HOLOCENE AND MODERN PERIODS
title_full EVALUATION OF THE PALEOCLIMATE MODELING INTERCOMPARISON PROJECT PHASE 4 (PMIP4) MODELS IN SIMULATING THE CONTRACTION OF INDO-PACIFIC WARM POOL BETWEEN THE MID-HOLOCENE AND MODERN PERIODS
title_fullStr EVALUATION OF THE PALEOCLIMATE MODELING INTERCOMPARISON PROJECT PHASE 4 (PMIP4) MODELS IN SIMULATING THE CONTRACTION OF INDO-PACIFIC WARM POOL BETWEEN THE MID-HOLOCENE AND MODERN PERIODS
title_full_unstemmed EVALUATION OF THE PALEOCLIMATE MODELING INTERCOMPARISON PROJECT PHASE 4 (PMIP4) MODELS IN SIMULATING THE CONTRACTION OF INDO-PACIFIC WARM POOL BETWEEN THE MID-HOLOCENE AND MODERN PERIODS
title_sort evaluation of the paleoclimate modeling intercomparison project phase 4 (pmip4) models in simulating the contraction of indo-pacific warm pool between the mid-holocene and modern periods
url https://digilib.itb.ac.id/gdl/view/84956
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