Aman Gupta

All Publications

• Offline Performance of a Nonlocal Deep Learning Parameterization for Climate Model Representation of Atmospheric Gravity Waves JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS Gupta, A., Sheshadri, A., Roy, S., Anantharaj, V. 2025; 17 (10)

  View details for DOI 10.1029/2025MS004977

  View details for Web of Science ID 001598640600001

• Gravity Wave Momentum Fluxes from 1 km Global ECMWF Integrated Forecast System. Scientific data Gupta, A., Sheshadri, A., Anantharaj, V. 2024; 11 (1): 903

  Abstract

  Progress in understanding the impact of mesoscale variability, including gravity waves (GWs), on atmospheric circulation is often limited by the availability of global fine-resolution observations and simulated data. This study presents momentum fluxes due to atmospheric GWs extracted from four months of an experimental "nature run", integrated at a 1 km resolution (XNR1K) using the Integrated Forecast System (IFS) model. Helmholtz decomposition is used to compute zonal and meridional flux of vertical momentum from ~1.5 petabytes of data; quantities often emulated by climate model parameterization of GWs. The fluxes are validated using ERA5 reanalysis, both during the first week after initialization and over the boreal winter period from November 2018 to February 2019. The agreement between reanalysis and IFS demonstrates its capability to generate reliable flux distributions and capture mesoscale dynamic variability in the atmosphere. The dataset could be valuable in advancing our understanding of GW-planetary wave interactions, GW evolution around atmospheric extremes, and as high-quality training data for machine learning (ML) simulation of GWs.

  View details for DOI 10.1038/s41597-024-03699-x

  View details for PubMedID 39169007

  View details for PubMedCentralID 7471968

• Insights on Lateral Gravity Wave Propagation in the Extratropical Stratosphere From 44 Years of ERA5 Data GEOPHYSICAL RESEARCH LETTERS Gupta, A., Sheshadri, A., Alexander, M., Birner, T. 2024; 51 (14)

  View details for DOI 10.1029/2024GL108541

  View details for Web of Science ID 001269395400001

• Updates on Model Hierarchies for Understanding and Simulating the Climate System: A Focus on Data-Informed Methods and Climate Change Impacts JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS Mansfield, L. A., Gupta, A., Burnett, A. C., Green, B., Wilka, C., Sheshadri, A. 2023; 15 (10)

  View details for DOI 10.1029/2023MS003715

  View details for Web of Science ID 001085868000001

• Estimating the Meridional Extent of Adiabatic Mixing in the Stratosphere Using Age-Of-Air JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES Gupta, A., Linz, M., Curbelo, J., Pauluis, O., Gerber, E. P., Kinnison, D. E. 2023; 128 (4)

  View details for DOI 10.1029/2022JD037712

  View details for Web of Science ID 000933186100001