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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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 |
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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 |
_version_ |
1823657331456475136 |