Dynamics of Atmospheres and Oceans
Papers 1176
1 page of 118 pages (1,176 results)
Abstract Geomorphological features and sparse visual wave measurements, presented in previous works, point out to the possible existence of alongshore wave energy gradients over the Southern Brazilian Shelf (SBS). After describing the two numerical models utilized and the model grids and settings, the present study evaluated the proposed validation of the basin-scale results against orbital altimetry and the regional-scale results against the two available wave-buoy data, discussing the extent t...
1 CitationsSource
Abstract The default green vegetation fraction (GVF) in the Weather Research and Forecasting (WRF) Model version 3.7.1 was derived between 1985 and 1990 from the 1990s Normalized Difference Vegetation Index (NDVI) achieved from the NOAA Advanced Very High Resolution Radiometer (AVHRR), and its representation is deteriorating when used to simulate recent weather and climate events. In this study, we applied in WRF v3.7.1 the updated GVF estimated by the real-time NDVI of the Moderate Resolution I...
#1Pritha Datta (IIT-KGP: Indian Institute of Technology Kharagpur)
#2Soumik Das (IIT-KGP: Indian Institute of Technology Kharagpur)H-Index: 4
Abstract The precipitation of the entire Indian sub-continent is primarily driven by the monsoon wind system, which throws a tough challenge to model changes due to its natural variabilities. Additionally, the unique geographical location and diverse climatic condition of the Indian state of West Bengal (WB) accelerates this challenge even more. Such a situation can be more complicated if the assumption of randomness in the Mann-Kendall (MK) test is not taken care of. The present study inspects ...
Abstract Based on high-resolution reanalysis data of the European Centre for Medium-Range Weather Forecasts, several samples of tropical cyclones (TCs), including tropical storms, severe tropical storms, and typhoons, in the South China Sea (SCS), were selected for composite analysis. The structures of these three types of vortices and their differences with ‘bogus’ vortices were investigated. Results showed that TCs in the SCS have characteristics that are distinctly different from vortices for...
Abstract A fully calibrated and validated 3D hydrodynamic model is applied to the Baltic Sea to investigate the vortical structures in the Baltic Sea in the period 2000–2009. The novelty of the study is the detection and dynamics of large scale mesoscale vortices both in horizontal and vertical planes by using the instantaneous velocity vectors. This study provides some new insights into the type and dynamics of vortical structures in the Baltic Sea. In the horizontal plane, vortices with typica...
#1Omid Alizadeh-Choobari (UT: University of Tehran)H-Index: 7
#2Morteza Qadimi (UT: University of Tehran)
Last.Sajedeh Marjani (UT: University of Tehran)
view all 3 authors...
Abstract Using a continuous multi-decadal simulations over the period 1981–2010, subseasonal to seasonal simulations of the Climate Forecast System version 2 (CFSv2) over Iran against the Climatic Research Unit (CRU) dataset are evaluated. CFSv2 shows cold biases over northern hillsides of the Alborz Mountains with the Mediterranean climate and warm biases over northern regions of the Persian Gulf and the Oman Sea with a dry climate. Magnitude of the model bias for 2-m temperature over different...
#1R.O. Cecilio (UFRGS: Universidade Federal do Rio Grande do Sul)H-Index: 1
#2S.R. Dillenburg (UFRGS: Universidade Federal do Rio Grande do Sul)H-Index: 1
Abstract Previously validated model results were used to characterize the wave climate over the Southern Brazilian Shelf (SBS). The low mean significant wave height over the western South Atlantic shelves was shown together with examples of cyclone-induced extreme wave fields and other typical wave conditions. The mean offshore spectra showed a bimodal shape with a predominance of S/SSW and ENE/E waves with distinctive interannual rising periods in wave energy density. Along-shelf wave energy gr...
#1B.K. Mahala (KIIT: KIIT University)
#2P.K. Mohanty (Berhampur University)
Last.A. Routray (National Centre for Medium Range Weather Forecasting)H-Index: 2
view all 4 authors...
Abstract The present study has been conducted to assess the performance of the Weather Research and Forecasting – Advanced Research (WRF-ARW, hereinafter named as WRF) model in simulating the very severe cyclonic storm (VSCS) “Titli” which formed over the Bay of Bengal during 08–13 October, 2018. The simulated meteorological variables viz. 10-m wind vectors, surface latent heat flux, rainfall, track and intensity based on minimum sea level pressure (MSLP), maximum sustained surface wind (MSW) ar...
#1Samiran Mandal (IIT BBS: Indian Institute of Technology Bhubaneswar)H-Index: 1
#2Sourav Sil (IIT BBS: Indian Institute of Technology Bhubaneswar)H-Index: 5
Last.Basanta Kumar Jena (National Institute of Ocean Technology)H-Index: 6
view all 5 authors...
Abstract Evolution of a coastal cyclonic eddy has been investigated using surface current observations from high-frequency radar (HFR) along the western Bay of Bengal (BoB) near Andhra Pradesh coast during October-December 2015. The HFRs tracked the genesis of the cyclonic eddy from early October, which persisted throughout November and dissipated after mid-December within the shelf-slope regions of HFR domain along the western boundary of BoB. A vector-based technique has been adapted to detect...
Top fields of study
Ocean current
Classical mechanics