Asian Monsoon Climate Stabilities and its Onset Processes: Dynamics and AsiaPEX Field Campaigns

Authors

  • Laitpharlang Cajee North Eastern Hill University Author
  • Jun Matsumoto Yokohama National University, Tokyo Metropolitan University Author
  • Taiichi Hayashi Kyoto University Author
  • Fatima Akter University of Dhaka Author
  • A. T. M. Shakhawat Hossain Jahangirnagar University Author
  • Sayeed Ahmed Choudhury Kagawa University Author
  • Subrat Kumar Panda Central University of Rajasthan Author
  • Rahul Mahanta Cotton University Author
  • Subashisa Dutta Indian Institute of Technology Guwahati Author
  • Prasanta Bhattacharya Gauhati University Author
  • Toru Terao Kagawa Unviersity Author
  • Hiambok Jones Syiemlieh North Eastern Hill University Author
  • Masahiro Tanoue Meteorological Research Institute Author
  • Hideyuki Kamimera National Research Institute for Earth Science and Disaster Resilience Author
  • Yusuke Yamane Tokoha University Author
  • Azusa Fukushima Kobe Gakuin University Author
  • Fumie Murata Kochi University Author
  • Masashi Kiguchi The University of Tokyo Author
  • Hatsuki Fujinami Nagoya University Author
  • Shinjiro Kanae Institute of Science Tokyo Author

DOI:

https://doi.org/10.64862/

Keywords:

Asian monsoon, Onset, Heating process

Abstract

We identified the process of Asian monsoon onset using new diagnostic method based on the mass amount of high moist and dry static energy airmass. In 2017, Asian monsoon onset process is driven by convective heating over the sector of Bay of Bengal and Bengal Plain. Estimation of convective heating has large uncertainty in ERA5 reanalysis dataset. We discuss the stability of Asian monsoon circulation and uncertainties in state-of-the-art analysis. We propose to develop new observational platform under the AsiaPEX project under the GEWEX climate research framework.

References

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Stiller-Reeve, M. A., Allen, T., Siddiquee, N. A., and Moniruzzaman, M. (2015). Complementing scientific monsoon definitions with social perception in Bangladesh. Bulletin of the American Meteorological Society, 96 (1), 49–57. https://doi.org/10.1175/BAMS-D-13-00144.1

Matsumoto, J. (1997). Seasonal transition of summer rainy season over Indochina and adjacent monsoon region. Advances in Atmospheric Sciences, 14 (2), 231–245. https://doi.org/10.1007/s00376-997-0022-0

Terao, T., Kanae, S., Fujinami, H., Das, S., Dimri, A. P., Dutta, S., Fujita, K., Fukushima, A., Ha, K. J., Hirose, M., Hong, J., Kamimera, H., Kayastha, R. B., Kiguchi, M., Kikuchi, K., Kim, H. M., Kitoh, A., Kubota, H., Ma, W., Ma, Y., Matsumoto, J. (2023). AsiaPEX: Challenges and prospects in Asian precipitation research. Bulletin of the American Meteorological Society, 104 (4), E884–E908. https://doi.org/10.1175/BAMS-D-20-0220.1

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Published

2025-11-27

Data Availability Statement

We used only ECMWF ERA5 dataset. Data are avaiable from their website.

How to Cite

Asian Monsoon Climate Stabilities and its Onset Processes: Dynamics and AsiaPEX Field Campaigns. (2025). Asian Journal of Engineering Geology, 2(Sp Issue), 213-214. https://doi.org/10.64862/

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