Prof. El-Sayed Robaa - Academia.edu (original) (raw)
Papers by Prof. El-Sayed Robaa
Journal of Environmental Science
This study investigated thermal discomfort in Houche Al-Oumara from 1994 to 2021 using different ... more This study investigated thermal discomfort in Houche Al-Oumara from 1994 to 2021 using different discomfort indices and analyzed data on temperatures, relative humidity, and rainfall. It was found that July and August had significantly higher mean temperatures compared to other months, with the highest temperature occurring in July. Conversely, January was the coldest month. The study observed a linear increase in mean air temperature from January to July, followed by a linear decrease from July to December. Similar patterns were observed for relative humidity, but in the opposite direction. Less than half of the population experienced thermal discomfort during July and August. The study emphasized the importance of understanding long-term thermal discomfort trends, considering global warming, urbanization, and population growth. Rainfall data analysis revealed significant variability in the annual average rainfall over the years, without a clear trend. Periods of consecutive years ...
The purpose of this study is to detect possible impact of global warming on agriculture over Gaza... more The purpose of this study is to detect possible impact of global warming on agriculture over Gaza. The longest and continuity data of annual average rainfall and temperature obtained cover a period of 36 years (1982-2018). Furthermore, the agricultural available data has been collected from the Palestinian Central Bureau of Statistics and the Ministry of Agriculture during 1993 to 2010. In this study, The rising temperatures have caused many agricultural pests that were unknown before, which has led to the destruction of many trees and the use of expensive pesticides. Moreover, the high soil temperature leads to an increase in the evaporation process, and hence to soil salinity and reduced fertility. The decreasing rainfall trend in Gaza has resulted in increasing the demand for groundwater irrigation. Taken into account all the aforementioned, there is a high need to develop varieties and seeds capable of growing in changing climatic conditions.
Atmospheric and Climate Sciences, 2011
Detailed studies on the effect of urbanization and industrialization processes on outdoor thermal... more Detailed studies on the effect of urbanization and industrialization processes on outdoor thermal human comfort in Greater Cairo region, Egypt have been performed in this study. Four different districts in Greater Cairo region have been selected to represent rural, suburban, typical urban and industrial areas. The data of surface dry, wet bulb temperatures and wind speed for two different periods represent non-urbanized and urbanized periods have been used. Discomfort indices for the two periods have been calculated for the four districts. The study revealed that urbanization and industrialization processes have resulted in the distinctly modification of human comfortable at all districts. The feeling of quite comfortable reduced from the old non-urbanized period to the recent urbanized period at the four districts. During the recent urbanized period, the rural area has the highest total number of quite comfortable hours while both urban and industrial areas have the lowest total number of hours. The serious hot uncomfortable didn't occur at all districts during the old non-urbanized period while during the recent urbanized period, all people had felt extreme serious hot uncomfortable only at urban and industrial areas. It could be concluded that the urbanization and industrialization processes cause increase of human serious hot uncomfortable feeling which in turn leads to more hindering for the human activities while the rural conditions leads to optimum weather comfort for further and more human activities.
Atmospheric and Climate Sciences
Detailed studies on the effect of urbanization and industrialization processes on outdoor thermal... more Detailed studies on the effect of urbanization and industrialization processes on outdoor thermal human com-fort in Greater Cairo region, Egypt have been performed in this study. Four different districts in Greater Cairo region have been selected to represent rural, suburban, typical urban and industrial areas. The data of surface dry, wet bulb temperatures and wind speed for two different periods represent non-urbanized and urbanized periods have been used. Discomfort indices for the two periods have been calculated for the four districts. The study revealed that urbanization and industrialization processes have resulted in the distinctly modification of human comfortable at all districts. The feeling of quite comfortable reduced from the old non-urbanized period to the recent urbanized period at the four districts. During the recent urbanized period, the rural area has the highest total number of quite comfortable hours while both urban and industrial areas have the lowest total n...
Journal of Environmental Science
This study investigated thermal discomfort in Houche Al-Oumara from 1994 to 2021 using different ... more This study investigated thermal discomfort in Houche Al-Oumara from 1994 to 2021 using different discomfort indices and analyzed data on temperatures, relative humidity, and rainfall. It was found that July and August had significantly higher mean temperatures compared to other months, with the highest temperature occurring in July. Conversely, January was the coldest month. The study observed a linear increase in mean air temperature from January to July, followed by a linear decrease from July to December. Similar patterns were observed for relative humidity, but in the opposite direction. Less than half of the population experienced thermal discomfort during July and August. The study emphasized the importance of understanding long-term thermal discomfort trends, considering global warming, urbanization, and population growth. Rainfall data analysis revealed significant variability in the annual average rainfall over the years, without a clear trend. Periods of consecutive years ...
The purpose of this study is to detect possible impact of global warming on agriculture over Gaza... more The purpose of this study is to detect possible impact of global warming on agriculture over Gaza. The longest and continuity data of annual average rainfall and temperature obtained cover a period of 36 years (1982-2018). Furthermore, the agricultural available data has been collected from the Palestinian Central Bureau of Statistics and the Ministry of Agriculture during 1993 to 2010. In this study, The rising temperatures have caused many agricultural pests that were unknown before, which has led to the destruction of many trees and the use of expensive pesticides. Moreover, the high soil temperature leads to an increase in the evaporation process, and hence to soil salinity and reduced fertility. The decreasing rainfall trend in Gaza has resulted in increasing the demand for groundwater irrigation. Taken into account all the aforementioned, there is a high need to develop varieties and seeds capable of growing in changing climatic conditions.
Atmospheric and Climate Sciences, 2011
Detailed studies on the effect of urbanization and industrialization processes on outdoor thermal... more Detailed studies on the effect of urbanization and industrialization processes on outdoor thermal human comfort in Greater Cairo region, Egypt have been performed in this study. Four different districts in Greater Cairo region have been selected to represent rural, suburban, typical urban and industrial areas. The data of surface dry, wet bulb temperatures and wind speed for two different periods represent non-urbanized and urbanized periods have been used. Discomfort indices for the two periods have been calculated for the four districts. The study revealed that urbanization and industrialization processes have resulted in the distinctly modification of human comfortable at all districts. The feeling of quite comfortable reduced from the old non-urbanized period to the recent urbanized period at the four districts. During the recent urbanized period, the rural area has the highest total number of quite comfortable hours while both urban and industrial areas have the lowest total number of hours. The serious hot uncomfortable didn't occur at all districts during the old non-urbanized period while during the recent urbanized period, all people had felt extreme serious hot uncomfortable only at urban and industrial areas. It could be concluded that the urbanization and industrialization processes cause increase of human serious hot uncomfortable feeling which in turn leads to more hindering for the human activities while the rural conditions leads to optimum weather comfort for further and more human activities.
Atmospheric and Climate Sciences
Detailed studies on the effect of urbanization and industrialization processes on outdoor thermal... more Detailed studies on the effect of urbanization and industrialization processes on outdoor thermal human com-fort in Greater Cairo region, Egypt have been performed in this study. Four different districts in Greater Cairo region have been selected to represent rural, suburban, typical urban and industrial areas. The data of surface dry, wet bulb temperatures and wind speed for two different periods represent non-urbanized and urbanized periods have been used. Discomfort indices for the two periods have been calculated for the four districts. The study revealed that urbanization and industrialization processes have resulted in the distinctly modification of human comfortable at all districts. The feeling of quite comfortable reduced from the old non-urbanized period to the recent urbanized period at the four districts. During the recent urbanized period, the rural area has the highest total number of quite comfortable hours while both urban and industrial areas have the lowest total n...