Abstract
Mean monthly precipitable water values from twenty seven state capitals and Federal Capital Territory, Abuja are determined using a ten year monthly meteorological parameter- average surface temperature. The results are then presented on annual average precipitable water map. The map shows that location with high topography has lowest value of precipitable water while location with plain terrain has highest value of precipitable water
Highlights
Precipitable water by definition is the depth of liquid water that would be obtained if the total amount of water vapour in a specified layer of the atmosphere above a unit area of the earth’s surface were condensed to a layer on that surface
In spite of the knowledge about precipitable water and how it affects lives, no attempts in Nigeria have been so far made to map the distribution of precipitable water
Some of the works on precipitable water are found only as a trivial component in works dealing with problems like Estimation of monthly average atmospheric precipitable water vapour in Sokoto and its relationship with the Idemudia and Aro, (1997) discussed on precipitable water estimation
Summary
Precipitable water by definition is the depth of liquid water that would be obtained if the total amount of water vapour in a specified layer of the atmosphere above a unit area of the earth’s surface were condensed to a layer on that surface. In the light of this, many researchers have developed diverse approaches to understand this concept, precipitable water. These include: Development of precipitable water estimation method using MTSAT measurement. In spite of the knowledge about precipitable water and how it affects lives, no attempts in Nigeria have been so far made to map the distribution of precipitable water. The purpose of this study is to create a wave in the current literature on precipitable water by determining the mean yearly precipitable water in the atmospheric column and to use same in constructing average annual precipitable water map in twenty seven locations and federal capital territory, Abuja, in which the meteorological data are available
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