Estimation of atmospheric chloride deposition using new model based on the theory of perfect gases

Understanding atmospheric circulation is essential to study particle transport in the atmosphere. This applies to certain ions (chloride, sodium, calcium, sulfate, lead, and so on) as well as certain radio-elements (cesium, polonium, tritium, etc. horizontal ellipsis ). The transfer factors are primarily controlled by atmospheric dispersion and diffusion. The spatial distribution and estimation of chloride deposits in precipitation are more than necessary for such use and quantification of recharge. The aim of this paper is to calculate the annual deposition of atmospheric chloride in the semi-arid area of Djelfa using a model derived from the perfect gas theory. This model, described as parsimonious, includes two basic parameters: rainfall and temperature. It is particularly useful in semi-arid areas with varying precipitation over time and space. Overall, this new numerical modeling approach emphasizes the importance of quantifying the distribution of chloride deposition in watersheds where data is frequently missing or scarce. Its implementation on site allowed the measurement of chloride mass deposition rates ranging from 1.52 to 31.70 g/m(2)/year with an average of 13.41 g/m(2)/year. Over the entire catchment area (1300 km(2)), the average annual deposit is around 13,500 tons/year.