This study has used TOMS AI as well as the reanalysis dataset of thirty-four years (1979-2012) to investigate the influence of atmospheric circulation on dust transport during the Harmattan period in West Africa, using Aerosol Index (AI) data, obtained from various satellite sensors. Changes in Inter-Tropical Discontinuity (ITD), Sea Surface Temperature (SST) over the Gulf of Guinea, and North ...

This study has used TOMS AI as well as the reanalysis dataset of thirty-four years (1979-2012) to investigate the influence of atmospheric circulation on dust transport during the Harmattan period in West Africa, using Aerosol Index (AI) data, obtained from various satellite sensors. Changes in Inter-Tropical Discontinuity (ITD), Sea Surface Temperature (SST) over the Gulf of Guinea, and North ...

Knowledge of the seasonal positioning Intertropical Discontinuity (ITD) is critical to understanding moist convective processes and associated rainfall over West Africa. This study constitutes a new analysis seasonality convection Africa, relative ITD, based on NASA's Atmospheric Infrared Sounder (AIRS) measurements from 2003 2018. Results show that AIRS resolves march including its inherent di...

In this article, the climatological state and seasonal variability of Arabian heat low (AHL) intertropical discontinuity (ITD) are investigated over Peninsula using 1979–2019 ERA-5 reanalysis data. The AHL is a summertime feature, mostly at 15°–35°N 40°–60°E, exhibiting clear strengthening last four decades in line with observed increase surface temperature. However, no shift its position detec...

Motivated by the increasing needs for reliable seasonal climate forecasts for enhanced living and protection of property, this study evaluates the predictive skill of the European Center for Medium-range Weather Forecast’s Sub-seasonal to Seasonal (ECMWF-S2S) precipitation forecasts during the peak of West Africa Monsoon in Nigeria. It investigates the ability of the ECMWF-S2S model to reproduc...

The stability analysis of rock slopes is a complex task for the geotechnical engineers due to the complex nature of the rock mass in a tropical climate that often has discontinuities in several forms, and consequently, in several types of slope failures. In this work, a rock mass classification scheme is followed in a tropical environment using the Rock Mass Rating (RMR) and Geological St...

This study attempts to use a full spectrum of in-situ and remotely-sensed observations from meteorological satellite to examine the characteristics of the rainstorm that wreaked havoc on the stateofthe-art velodrome that stood out at the new National Stadium complex, Abuja, Nigeria, on Saturday, October, 2003, two hours to the closing ceremony of 8th All African Games and socio-economic implica...

This study explored the source of inter-listener variability in the performance of lateralization tasks based on interaural time or level differences (ITDs or ILDs) by examining correlation of performance between pairs of multiple psychoacoustical tasks. The ITD, ILD, Time, and Level tasks were intended to measure sensitivities to ITD; ILD; temporal fine structure or envelope of the stimulus en...

Illusory continuity is known as a psychoacoustical phenomenon in hearing; i.e. an intermittent pure tone may be perceived as if it was continuous, when it is padded with enough large white noise. There are many researches related to this issue in monaural listening. It is said that such illusory continuity is observed when there is no evidence of discontinuity and level of the white noise is la...