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Intraseasonal variability of δ18o of precipitation over the indonesian maritime continent related to the Madden-Julian oscillation
Belgaman H.A.a,b, Ichiyanagi K.a,c, Tanoue M.d, Suwarman R.e, Yoshimura K.d, Mori S.c, Kurita N.f, Yamanaka M.D.c, Syamsudin F.b
a Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
b Agency for Assessment and Application of Technology (BPPT), Jakarta, Indonesia
c Department of Coupled Ocean-Atmosphere-Land Processes (DCOP), JAMSTEC, Yokosuka, Japan
d School of Engineering, The University of Tokyo, Tokyo, Japan
e Faculty of Earth Science and Technology, ITB, Bandung, Indonesia
f Nagoya University, Nagoya, Japan
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2016, the Meteorological Society of Japan.Intraseasonal variability of precipitation over the Indonesian Maritime Continent (IMC) is related mainly to the Madden-Julian oscillation (MJO). The MJO enhances and suppresses precipitation around the IMC according to its phase. This study examined the relationship between the MJO and the stable isotope of the precipitation over the IMC. Observations and simulation data from an isotope circulation model and colored moisture analysis (ICM/CMA) were used. Temporal analyses of the observed and simulated data showed that an active MJO stage, associated with a positive precipitation anomaly over the IMC, was correlated with the depletion of δ18Op at all stations. Spatial analysis of the total column precipitable water from the ICM/CMA revealed that during the MJO phase 3-5, water of Indian Ocean origin reached as far as western parts of Borneo and Bali. For other part of the IMC in these phases, vapor was refreshed from the South Maritime Continent Ocean and North Maritime Continent Ocean. Water that originated from the Pacific Ocean traveled westward during MJO phases 3-5, and it retreated eastward during phases 6-8.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The authors wish to thanks the Priority Organization for Innovation and Excellence, Kumamoto University. This research was supported partly by DCOP, JAMSTEC for project research, and JSPS KAKENHI Grant Numbers 24510256, 16H05619.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.2151/sola.2016-039[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]