Jonathanmatondo82

Abstract The greenhouse gases (CO2, CH4, N2O, HFCs, PFCs, and SF6) concentrations in the atmosphere have increased very much since the industrial revolution. The greenhouse gas effect has been projected to cause global average temperature increase in the order of 1.4 to 5.8oC over the period 1990 to 2100. Therefore, global average annual precipitation is projected to increase during the 21st century due to the greenhouse effect. The impact of climate change on hydrology and water resources in ...

The science behind the generation of information required to evaluate the impact of climate change on the water resources in Eswatini is presented. Three general circulation models namely: Canadian climate change equilibrium (CCC-EQ), Geophysical Fluid Dynamics Laboratory (GFDL) and United Kingdom Transient Resilient (GFDL) were found appropriate for use to project temperature and precipitation changes for Eswatini for year 2075 for low, medium and high climate scenarios for dry, average and wet...

Abstract Air, land and water are the three fragile components of the Spaceship Earth. These three components are highly integrative resources and therefore, must be properly planned and managed in order to ensure adequate public health, food supplies and transportation. The quality of life is directly dependent on how well these resources are planned and managed for sustainable development. The above three resources are highly integrated and thus the need for multi-purpose water resources plann...

Abstract It has been identified that, long-term climatic changes (Pleistocene ice ages) have been caused by periodic changes in the distribution of incoming solar radiation due to the variations in the earth's orbital geometry, that is the tilt, precision of equinoxes and eccentricity which take place with periodicity ranging from 41 to 9508 thousand years. However, it has been considered that the major potential mechanism of climate change over the next few hundred years will be anthropogen...

Abstract Air, land and water are the three fragile components of the Spaceship Earth. These three components are highly integrative resources and therefore, must be properly planned and managed in order to ensure adequate public health, food supplies and transportation. The quality of life is directly dependent on how well these resources are planned and managed for sustainable development. The above three resources are highly integrated and thus the need for multi-purpose water resources plann...

Abstract: This paper assesses affordability and willingness of rural households in the Lowveld region of Swaziland to install rooftop rainwater harvesting systems. The choice of the Lowveld was motivated by the fact that it is prone to drought and experiences acute water shortage problems during the dry season from May to October. Therefore, this study was designed to determine affordability and willingness on the part of households to install a rainwater harvesting system consisting of gutter...

ABSTRACT A study to assess the effect of rainfall variability, varying water demand and storages sizes on the duration of the collected rainwater for domestic purposes in the drought prone areas of Swaziland was conducted in the Lowveld region. The choice of the Lowveld was motivated by the fact that it is prone to drought and experiences acute water shortage problems. The objectives of the study were to determine the: (i) effect of rainfall variability on the annual amount of rainwater to be c...

ABSTRACT Water plays a fundamental, pervasive , critical role in every economy and thus is very important in almost all aspects of the human endeavours. It is worth to remember that, ancient civilization grew up in the river valleys such as Euphratis and Tigris, the Nile river etc. In Egypt, the waters of the Nile is their life blood and the Tukano of the Amazon compare water on the earth to the blood in their veins. Forty seven percent of the land area of the earth is drained by international ...

Abstract Air, land and water are the three fragile components of the Spaceship Earth. These three components are highly integrative resources and therefore, must be properly planned and managed in order to ensure adequate public health, food supplies and transportation. The quality of life is directly dependent on how well these resources are planned and managed for sustainable development. The above three resources are highly integrated and thus the need for multi-purpose water resources plann...

ABSTRACT: Urbanization and expansion of structural developments within the urban area of Mbabane are challenges that require a rapid response in terms of flood-damage mitigation measures. There have been several cases of flash floods in Mbabane mostly resulting from heavy downpour and a poor drainage system, thus causing in loss of property and goods. In this study, the effects of development activities on the occurrence of floods in Mbabane City were investigated using two set of orthophoto, m...