[A-CG45] AsiaPEX field campaign strategies for changing Asian monsoon precipitation

Mon. May 26, 2025 1:45 PM - 3:15 PM 304 (International Conference Hall, Makuhari Messe)

convener:Toru Terao(Kagawa University), Shinjiro Kanae(School of Environment and Society, Tokyo Institute of Technology), Hatsuki Fujinami(Nagoya University), Chairperson:Toru Terao(Kagawa University), Shinjiro Kanae(School of Environment and Society, Tokyo Institute of Technology), Hatsuki Fujinami(Nagoya University)

The Asian Precipitation Experiment (AsiaPEX) will conduct an integrated observational and modeling initiative, the Asian Monsoon Years (AMY)-II in the second half of the 2020s. One of the core components of the AMY-II is a coordinated and carefully planned field campaign to understand key processes of the Asian hydroclimatological system driven by the Asian monsoon circulation, which is changing under the global warming. The Asian hydroclimatological system is an amalgam of sub-regional and hemispheric processes interacting with each other. We will plan different observational platforms focusing on specific spatial coverage at different spatio-temporal scales, each with its own background, scientific and societal objectives, and processes that need to be focused on to be understood. In this session, we will discuss many proposals for sub-regional and hemispheric observational platforms. At the same time, we will integrate from the point of view of six approaches in the AsiaPEX; 1) the observation and estimation of Asian precipitation, 2) process study focusing on land-atmosphere coupling, 3) predictability of S2S to decadal variability, 4) high-resolution hydrological modeling incorporating humanosphere and cryosphere, 5) modeling and remote sensing initiatives, and 6) detection and projection of climate change. We will propose the possible Intensive Observation Period (IOP) for AMY-II based on all the presentations in this session.

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1:45 PM - 2:00 PM

[ACG45-01] Long term changes in the Frequency of Local Severe Convective Storm (LSCS) days in Assam

*Rahul Mahanta¹, Prolay Saha¹, Yusuke Yamane², Toru Terao³, Hideyuki Kamimera⁴ (1.Cotton Univ., 2.Tokoha Univ., 3.Kagawa Univ., 4.NIED)

2:00 PM - 2:15 PM

[ACG45-02] Evaluating the Efficiency of Lightning Parameterization in the WRF Model for Simulating Lightning Events Over India

*Unashish Mondal¹, Subrat Kumar Panda¹, Toru Terao², Devesh Sharma¹ (1.Central University of Rajasthan, India, 2.Kagawa University, Takamatsu, Japan)

2:15 PM - 2:30 PM

[ACG45-03] Intraseasonal and diurnal variations of lightning activities over the coastal heavy rainfall region of Sumatra during the YMC campaign observation periods (2015/2017)

*Jun-Ichi Hamada^1,2, Shuichi Mori², Sopia Lestari^3,4, Reni Sulistyowati³, Fadli Syamsudin³ (1.Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, 2.Japan Agency for Marine-Earth Science and Technology, 3.National Research and Innovation Agency, Indonesia, 4.Institute for Space-Earth Environmental Research, Nagoya University)

2:30 PM - 2:45 PM

[ACG45-04] The Unprecedented August 2024 Eastern Bangladesh Flood: A Study of Hydrometeorological Drivers, Societal Impacts, and Policy Needs for Resilience

*Mohan Kumar Das^1,2,3,4, Md. Awlad Hossain^1,5,2, Sheikh Fahim Faysal Sowrav^1,2,4, Toru Terao⁶, Nafis Imtiaj Hossain¹, Md Sazzad Hossain^1,7, Maisha Farzana Methila^1,3,2, Puspendu Biswas Paul ^1,10, Jamal Uddin Khan^1,8, Mahfujur Rahman^1,2,11, Samarendra Karmakar^12,1,2, A.K.M. Saiful Islam^1,11, Md. Shameem Hassan Bhuyian^12,1, Faruque Abdullah^1,2, Sifat Tanzil Ovi ^1,2,3, Swapan Chandra Barman^1,2, Arpita Roy Shawon^1,2,13, Ayan Debnath ^14,1,2, Ishrar Tahmin Anika ^1,15, Shipa Rani Singha ^1,2,3, Rakesh T. Konduru⁹, Md. Khurshed Alam¹, Fatima Akter^1,2,3, Monika Dhar¹, Khan Mohammad Ibtehal^1,2,4, Md. Sajid Anam^2,1,4, Al Amin Arrafi ^1,2,4, Shakil Hossen^1,2,16, Atika Afia Broty^1,2,4, Shekhar Kanti Ray¹ (1.National Oceanographic And Maritime Institute (NOAMI), 70 Bir Uttam C R Dutta Road, Hatirpool, Dhaka-1205, Bangladesh, 2.South Asian Meteorological Association (SAMA), Mausam Bhawan, Lodhi Road New Delhi - 110003, India, 3.Department of Meteorology, University of Dhaka, Dhaka-1000, Bangladesh, 4.Department of Oceanography and Hydrography, Bangladesh Maritime University, Dhaka, Bangladesh, 5.Department of Applied Mathematics, University of Dhaka, Dhaka-1000, Bangladesh, 6.Faculty of Education, Kagawa University 1-1, Saiwai-cho, Takamatsu, Kagawa 760-8522, Japan, 7.Bangladesh Water Development Board , 72 Green Road, Dhaka-1205, Bangladesh , 8.Laboratoire d’Etudes en Géophysique et Océanographie Spatiales (LEGOS), Université Toulouse III, CNRS, CNES, IRD, Toulouse, France, 9.Centre for Computational Science, RIKEN Cluster for Pioneering Research, Prediction Science Laboratory, RIKEN, Kobe, Hyogo, Japan, 10.International School, Regional Centre for Space Science and Technology Education in Asia and the Pacific (RCSSTEAP), Beihang University, 37 Xueyuan Road, Haidian District, Beijing, P.R. China, 100191, 11.Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh, 12.Bangladesh Meteorological Department, Meteorological Complex, Agargaon, Dhaka-1207, Bangladesh, 13.Department of Geography and Environment, University of Dhaka, Dhaka-1000, Bangladesh, 14.Geography and Environmental Studies, University of Chittagong, Chattogram, Bangladesh, 15.Institute of Disaster Management and Vulnerability Studies, University of Dhaka, Dhaka-1000, Bangladesh, 16.Department of Oceanography, Noakhali Science and Technology University, Noakhali, Bangladesh )

2:45 PM - 3:00 PM

[ACG45-05] "Socio-Hydrological Dynamics of Flooding and Agricultural Resilience in the Lower Brahmaputra River Basin"

*Marina Langhu¹, Taikan Oki¹, Masashi Kiguchi¹, Shinichiro Nakamura² (1.Department of Civil engineering, The Graduate School of Engineering, The University of Tokyo, 2.Department of Civil and Environmental Engineering, Nagoya University)

3:00 PM - 3:15 PM

[ACG45-06] Quantifying Regional Climate Change within the South Asian Summer Monsoon domain

*Prolay Saha¹, Rahul Mahanta¹, Pyemo Afego², Yusuke Yamane³, Fumie Murata⁴, Hideyuki Kamimera⁵, Toru Terao⁶ (1.Cotton Univ., 2.Univ. of Tokyo, 3.Tokoha Univ., 4.Kochi Univ., 5.NIED, 6.Kagawa Univ.)

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