![]() The sampling was done at 5 mins and it was averaged to one hour for the sake of this study. The 6510 data logger USB variant was used alongside the WeatherLink software to store the data on a local computer and also to upload the data to the WeatherLink cloud. The data was saved on the data logger affixed to the Davis vantage Pro2 console the data logger also provides an interface for direct access to the weather station recorded data. The station was installed at Wuse 2, Abuja (9.08˚N, 7.48˚E), Nigeria, at an elevation of approximately 493 m above sea level. The Davis Vantage Pro 2 records atmospheric parameters in one package called the integrated sensor suite (ISS). were measured with an automatic meteorological weather station, Davis Vantage Pro 2 Wireless. Weather vagaries such as the UV index, temperature, dew point, humidity, wind speed, precipitation rate etc. also revealed that having a Dew point greater than 60˚C at lower atmosphere is a clear indication of intense thunderstorms. showed that relative humidity is used in forecasting the rain and the probability of thunderstorms. showed that having a relative humidity value of more than 80% invariably leads to uneasiness on the skin due to the unique characteristics of the surface of the skin and having a relative humidity of 100% creates muggy conditions. however showed that the relative humidity is influenced by the combination of various meteorological parameters such as solar radiation, dew point temperature and ambient temperature. also revealed that the relative humidity is a highly sensitive parameter that has become a measure of the thermal discomfort levels of humans and showed noticeable impacts on the performance of metals, electrical devices and etc. shows that the dew point temperature and relative humidity are accepted and used as indicators of the amount of moisture in the air. The closer the dew point is to the actual air temperature, the more humid the air becomes.Īny alteration or changes in one of weather vagaries could invariably lead to changes in others. This leads to the conclusion that: the higher the dew point, the more moisture in the air and vice versa. While Dew point shows the moisture level in the air, Relative humidity reveals the percentage of the degree of saturation of the air. Though dew point and relative humidity are tools used in prognostications of weather and also to express the amount of moisture in the air, they are actually different. Dew point is widely regarded as a highly recommended tool for forecasting rain and the probability of thunderstorms. This occurs according to when the temperature at actual vapour pressure and the saturation vapour pressure is equal. Dew point temperature is the temperature at which the water vapour presented in the air condenses into water droplets or dew at constant air pressure. The dew point temperature of the water vapour is the temperature at which the water vapour in the air begins to evaporate or condense simultaneously at the same rate. Great importance has been given to dew point due to the fact that it is seen as the measure of the state of the atmosphere in as much that it tells how much water vapour is present in it. Relative humidity is known to be a function of temperature and absolute concentration of water vapour. Its effect is also seen in the area of biosphere and surface hydrology. Atmospheric humidity is known to be a very important element in determining the geographical distribution of precipitation and its peak intensity. It also plays a prominent role in the formation of fog, clouds and smog. Relative humidity (RH) can be described as the amount of water vapour in an air sample, which directly affects the visibility of the atmosphere. Hence, monitoring of the changes in the atmospheric water vapour content as a means of validating the large water vapour feedback of the various climatic models and as a result of global warming becomes imperative. The water vapour in the atmosphere is expected to increase due to global warming, thereby leading to significantly high anthropogenic sources in Climate change. ![]() The corresponding large amount of energy needed as water changes from one (gaseous or liquid or solid) phase to another, together with its role as a greenhouse gas, makes Atmospheric water vapour very important in Earth’s weather and climate. One of the most important determinants of the state of the Weather and Climate of the Earth is the Atmospheric water vapour. The knowledge of the prevailing conditions of the atmosphere of a place helps in the study of the weather of the place. It is a known fact that almost all area of human endeavours is affected by the weather.
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