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 of the atmospheric circulation 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 initiatives. 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


Subseasonal-to-seasonal (S2S) Tropical Variability and Remote Impacts (teleconnections).

Earth Science: Atmospheric 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).

Current Projects


Seamless Prediction and Predictability across weather-subseasonal-seasonal timescales.

Teaching Experience


Teaching Assistant, Spring 2016, Introduction to the Fundamentals of Atmospheric Sciences, George Mason University.

Education


Ph.D., Climate Dynamics, George Mason University, Department of Atmospheric, Ocean & Earth Sciences, USA. Dissertation: The character of the mid-latitude response to the fast and slow cycles of the Madden-Julian Oscillation heating.

M.Tech., Atmospheric Science, SavitriBai Phule University (formerly Univ. Of Pune), India. Thesis: Effects of meteorological inputs on air pollutant dispersion modeling over Pune City using AERMOD model.

M.Sc., Space Science, SavitriBai Phule University (formerly Univ. Of Pune), India. Thesis: Satellite data analysis of stratospheric ozone using TOMS data.

B.Sc., Electronics, Rani Durgavati University, India.

Other Professional Information


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]

2021. "The Role of Vegetation in Flash Drought Occurrence: A Sensitivity Study Using Community Earth System Model, Version 2." Journal of Hydrometeorology 22 (4): 845-857 [10.1175/jhm-d-20-0214.1] [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]

2011. "INTERANNUAL VARIATION OF THE SOUTH ASIAN MONSOON: LINKS WITH ENSO AND EQUINOO." World Scientific Series on Asia-Pacific Weather and Climate 25-42 [10.1142/9789814343411_0003] [Article in Book]

2011. "Prediction of the Indian summer monsoon rainfall using a state-of-the-art coupled ocean–atmosphere model." Current Science Vol. 100, No. 3 pp. 354-362 [Journal Article/Letter]