Wind from Indian Doppler Weather Radars: a data assimilation view point

Devajyoti Dutta; Swapan Mallick; K. Amar Jyothi; John P. George; D. Preveen Kumar

doi:10.1117/12.2223691

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9 May 2016 Wind from Indian Doppler Weather Radars: a data assimilation view point

Devajyoti Dutta, Swapan Mallick, K. Amar Jyothi, John P. George, D. Preveen Kumar

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Proceedings Volume 9876, Remote Sensing of the Atmosphere, Clouds, and Precipitation VI; 98760W (2016) https://doi.org/10.1117/12.2223691
Event: SPIE Asia-Pacific Remote Sensing, 2016, New Delhi, India

Abstract

Doppler Weather Radar (DWR) can provide tropospheric wind observations with high temporal and spatial resolutions. The Volume Velocity Processing (VVP) technique is one of the processing methods which can provide vertical profiles of mean horizontal winds. The DWR observed VVP winds gives a continuous observation of the wind field at various atmospheric levels. The quality of the VVP winds is studied against the short-range forecast of the NCUM model (model background). The biases of the observation are calculated against model background. This study focuses on the quality of VVP winds and seasonal variation of bias of the observed wind. This results shows that the VVP winds provides reasonably accurate estimates of the vertical wind structure in the troposphere over radar locations which can be effectively used in the numerical weather prediction system.

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Devajyoti Dutta, Swapan Mallick, K. Amar Jyothi, John P. George, and D. Preveen Kumar "Wind from Indian Doppler Weather Radars: a data assimilation view point", Proc. SPIE 9876, Remote Sensing of the Atmosphere, Clouds, and Precipitation VI, 98760W (9 May 2016); https://doi.org/10.1117/12.2223691

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