The high values (>10 ‰) suggest an additional source of moisture such as moisture recycling as will be discussed later.
The low d-excess also indicates the dominance of the Gulf of Guinea as main the source of moisture during the height of the monsoon and limited supply of inland recycled moisture to rainfall during this period.
Also, atmospheric water vapour content is higher near the source of moisture than in distant regions.
The winter accumulation of snow, however, is often the primary source of moisture for the summer growth of plants.
In some deserts that are located near coasts, such as the Namib Desert of southwestern Africa and those of the west coasts of the Americas in California and Peru, fog is an important source of moisture that is otherwise scarce.
As the storm continues to move inland and loses contact with the ocean — its source of moisture — rain levels are expected to diminish, though wind damage is still likely.
Another reason could be its nearness to the primary source of moisture, the Gulf of Guinea.
However, these properties are the source of moisture condensation inside the block, compromising the building comfort.
