Exploring impacts of troposphere–stratosphere coupling processes and challenges of forecasting extreme events in the Asian summer monsoon in a changing climate (ACP/WCD inter-journal SI)(ACP/WCD inter-journal SI)
Exploring impacts of troposphere–stratosphere coupling processes and challenges of forecasting extreme events in the Asian summer monsoon in a changing climate (ACP/WCD inter-journal SI)(ACP/WCD inter-journal SI)
Editor(s): ACP co-editors | Coordinators: Peter Haynes (University of Cambridge, United Kingdom) and Rolf Müller (Forschungszentrum Jülich, Germany) | Co-organizers: Suvarna Fadnavis (Indian Institute of Tropical Meteorology, India), Marc von Hobe (Forschungszentrum Jülich, Germany), E.N. Rajagopal (Indian Institute of Tropical Meteorology, India), and Parthasarathi Mukhopadhyay (Indian Institute of Tropical Meteorology, India) Special issue jointly organized between Atmospheric Chemistry and Physics and Weather and Climate Dynamics

The Asian summer monsoon (ASM) plays a key role in the vertical transport of material (including anthropogenic pollutants, aerosols, aerosol precursors, and other important trace gases) across the tropopause, with significant impacts on stratospheric chemistry and dynamics regionally and globally. Additionally, the Asian region is experiencing increasingly frequent and severe weather extremes connected to the ASM that are causing unprecedented damage to public property and loss of life. Predicting localized extreme events with sufficient lead times using numerical weather prediction (NWP) models remains challenging, and recent research suggests that better representation of stratospheric processes in NWP models can help to improve the prediction of monsoon extremes. On the other hand, it is well recognized that the complexities of the underlying mechanisms of stratosphere–troposphere coupling processes are difficult to incorporate in NWP models.

Observational and modelling aspects of the stratosphere–troposphere coupling processes and extreme weather events associated with the Asian summer monsoon were addressed at an international workshop, Stratosphere-Troposphere Interactions and Prediction of Monsoon weather EXtremes (STIPMEX), in Pune, India, from 2 to 7 June 2024. The STIPMEX workshop provided a platform for discussions on dynamical, chemical, radiative, and convective processes of the atmosphere during the ASM and fostered knowledge exchange and collaboration between experts on stratosphere–troposphere interactions and extreme weather prediction. The workshop aimed to promote and improve the inclusion of stratospheric and tropospheric processes in NWP models for better predictability of monsoon extremes. Full information on the STIPMEX workshop including a detailed list of themes and topics as well as an overview of the delivered presentations can be found at https://sparc-extreme.tropmet.res.in/.

This inter-journal special issue of Atmospheric Chemistry and Physics (ACP) and Weather and Climate Dynamics (WCD) was initiated to publish novel and original research presented during STIPMEX, follow-on studies and material representing a product of conference discussions and knowledge exchange, and other scientific studies directly related to the conference themes.

Review process: This inter-journal special issue co-lists papers of different journals. Thereby, each paper was submitted to 1 particular journal and underwent the regular interactive peer-review process of that journal. Depending on the journal, the peer review was handled by regular members of the editorial board and/or by guest editors designated by the journal’s chief/executive editors.

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16 Dec 2024
Analysis of raindrop size distribution from the double moment cloud microphysics scheme for monsoon over a tropical station
Kadavathu Sreekumar Apsara, Jayakumar Aravindakshan, Anurose Theethai Jacob, Saji Mohandas, Paul Field, Hamish Gordan, Thara Prabhakaran, Mahen Konwar, and Vijapurap Srinivasa Prasad
EGUsphere, https://doi.org/10.5194/egusphere-2024-3538,https://doi.org/10.5194/egusphere-2024-3538, 2024
Preprint under review for ACP (discussion: open, 0 comments)
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30 Sep 2024
Shortwave Radiative Impacts of the Asian Tropopause Aerosol Layer (ATAL) using Balloon-borne In-situ measurements at three distinct locations in India
Vadassery Neelamana Santhosh, Bomidi Lakshmi Madhavan, Sivan Thankamani Akhil Raj, Madineni Venkat Ratnam, Jean-Paul Vernier, and Frank Gunther Wienhold
EGUsphere, https://doi.org/10.5194/egusphere-2024-2861,https://doi.org/10.5194/egusphere-2024-2861, 2024
Preprint under review for ACP (discussion: open, 1 comment)
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