Sciences and Exploration Directorate

Priyanka Yadav

(Assistant Research Scientist)

Priyanka Yadav's Contact Card & Information.
Email: priyanka.yadav@nasa.gov
Org Code: 610.1
Address:
NASA/GSFC
Mail Code 610.1
Greenbelt, MD 20771
Employer: UNIV OF MARYLAND COLLEGE PARK

Brief Bio


Priyanka Yadav is an Assistant Research Scientist with the University of Maryland Earth System Science Interdisciplinary Center and the Global Modeling and Assimilation Office at NASA Goddard Space Flight Center.

Her research focuses on improving predictability on subseasonal to seasonal (S2S) timescales using observational data, climate models, and advanced statistical techniques.


Priyanka successfully demonstrated that the phase speed of the MJO controls the strength and duration of the tropospheric and stratospheric pathway in MJO teleconnections. In addition, she has contributed to various national and international research community projects. Her scientific contributions span across a wide range of research projects, including teleconnections arising from fast and slow MJO episodes via tropospheric and stratospheric pathways, stratosphere-troposphere coupling in S2S models, the North American monsoon, the South Asian monsoon and its links to the ENSO and IOD, air pollutant dispersion modeling, and studying the stratospheric ozone depletion using TOMS data.

Research Interests


Seamless Predictability and Prediction on subseasonal to seasonal timescales.

Earth Science: Analysis


Subseasonal-to-seasonal (S2S) tropical variability and its remote impacts.

Earth Science: Seasonal Dynamics

The modes of tropical variability (e.g. Madden-Julian Oscillation (MJO), Indian Ocean Dipole (IOD), and ENSO) can influence the global weather across different timescales via tropospheric and stratospheric teleconnection pathways. These modes are the sources of predictability for global patterns such as the North Atlantic Oscillation (NAO), Pacific North American Pattern (PNA), weather regimes (Scandinavian Blocking, Atlantic ridge, Pacific Blocking).


South Asian monsoon, The North and South American monsoon systems.

Earth Science: Atmospheric Dynamics

Current Projects


Seamless Prediction and Predictability across weather-seasonal timescales.

Positions/Employment


Assistant Research Scientist

University of Maryland (ESSIC) - Maryland

2023 - Present

Education


Ph.D., George Mason University, Department of Atmospheric, Oceanic & Earth Sciences, USA.

Dissertation: The character of the mid-latitude response to the fast and slow cycles of the Madden-Julian Oscillation heating.

Publications


Refereed

2024. "The Role of the Stratosphere in Teleconnections Arising From Fast and Slow MJO Episodes." Geophysical Research Letters 51 (1): [10.1029/2023gl104826] [Journal Article/Letter]

2023. "Intrinsic Predictability Limits arising from Indian Ocean MJO Heating: Effects on tropical and extratropical teleconnections." Weather and Climate Dynamics 4 1001-1018 [10.5194/wcd-4-1001-2023] [Journal Article/Letter]

2022. "The Winter North Pacific Teleconnection in Response to ENSO and the MJO in Operational Subseasonal Forecasting Models Is Too Weak." Journal of Climate 35 (24): 8013-8030 [10.1175/jcli-d-22-0179.1] [Journal Article/Letter]

2022. "Stationary wave biases and their effect on upward troposphere– stratosphere coupling in sub-seasonal prediction models." Weather and Climate Dynamics 3 (2): 679-692 [10.5194/wcd-3-679-2022] [Journal Article/Letter]

2022. "Advances in the prediction of MJO-Teleconnections in the S2S forecast systems." Bulletin of the American Meteorological Society 103 (6): E1426-E1447 [https://doi.org/10.1175/BAMS-D-21-0130.1] [Journal Article/Letter]

2019. "The Euro-Atlantic Circulation Response to the Madden-Julian Oscillation Cycle of Tropical Heating: Coupled GCM Intervention Experiments." Atmosphere-Ocean 57 (3): 161-181 [10.1080/07055900.2019.1626214] [Journal Article/Letter]

2018. "Systematic Errors in Weather and Climate Models: Nature, Origins, and Ways Forward." Bulletin of the American Meteorological Society 99 (4): ES67-ES70 [10.1175/bams-d-17-0287.1] [Journal Article/Letter]

2017. "Circulation Response to Fast and Slow MJO Episodes." Monthly Weather Review 145 (5): 1577-1596 [10.1175/mwr-d-16-0352.1] [Journal Article/Letter]