The unusual severe dust storm of May 2018 over Northern India: Genesis, propagation and associated conditions

Author(s):  
Priyanka Banerjee ◽  
Sreedharan Krishnakumari Satheesh ◽  
Krishnaswamy Krishna Moorthy
Urban Climate ◽  
2021 ◽  
Vol 37 ◽  
pp. 100825
Author(s):  
Kaustav Chakravarty ◽  
Vineetha Vincent ◽  
Ramesh Vellore ◽  
A.K. Srivastava ◽  
Arpita Rastogi ◽  
...  

2020 ◽  
Vol 167 ◽  
pp. 106441 ◽  
Author(s):  
Christos D. Argyropoulos ◽  
Hala Hassan ◽  
Prashant Kumar ◽  
Konstantinos E. Kakosimos

2008 ◽  
Vol 8 (11) ◽  
pp. 2975-2983 ◽  
Author(s):  
C. Lin ◽  
Z. Wang ◽  
J. Zhu

Abstract. An Ensemble Kalman Filter (EnKF) data assimilation system was developed for a regional dust transport model. This paper applied the EnKF method to investigate modeling of severe dust storm episodes occurring in March 2002 over China based on surface observations of dust concentrations to explore the impact of the EnKF data assimilation systems on forecast improvement. A series of sensitivity experiments using our system demonstrates the ability of the advanced EnKF assimilation method using surface observed PM10 in North China to correct initial conditions, which leads to improved forecasts of dust storms. However, large errors in the forecast may arise from model errors (uncertainties in meteorological fields, dust emissions, dry deposition velocity, etc.). This result illustrates that the EnKF requires identification and correction model errors during the assimilation procedure in order to significantly improve forecasts. Results also show that the EnKF should use a large inflation parameter to obtain better model performance and forecast potential. Furthermore, the ensemble perturbations generated at the initial time should include enough ensemble spreads to represent the background error after several assimilation cycles.


2015 ◽  
Vol 169 ◽  
pp. 404-417 ◽  
Author(s):  
Ghouse Basha ◽  
D.V. Phanikumar ◽  
K. Niranjan Kumar ◽  
T.B.M.J. Ouarda ◽  
P.R. Marpu

2016 ◽  
Vol 128 (6) ◽  
pp. 779-792 ◽  
Author(s):  
Atinderpal Singh ◽  
Shani Tiwari ◽  
Deepti Sharma ◽  
Darshan Singh ◽  
Suresh Tiwari ◽  
...  

2016 ◽  
Vol 8 (5) ◽  
pp. 394 ◽  
Author(s):  
Li Fang ◽  
Shupeng Wang ◽  
Tao Yu ◽  
Xingfa Gu ◽  
Xingying Zhang ◽  
...  

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