{"title":"مناخ الربع الخالي جنوب شرق المملكة العربية السعودية","authors":"عبدالله المسند عبدالله المسند","doi":"10.4197/met.27-1.11","DOIUrl":"https://doi.org/10.4197/met.27-1.11","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"41 12 Pt 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125747000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Conditional Stochastic Simulation of the Geological Configuration at El-Arish Coastal Area, Egypt@@@المحاكاة التصادفية المشروطة للتشكيل الجيولوجي في المنطقة الساحلية بالعريش - جمهورية مصر العربية","authors":"A. Elfeki","doi":"10.4197/MET.19-1.4","DOIUrl":"https://doi.org/10.4197/MET.19-1.4","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127438867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quality Appraisal of Effluent from Unayzah City Wastewater Treatment Plant for Irrigation Reuse@@@تقييم نوعية مياه الصرف الصحي الخارجة من محطة المعالجة بمدينة عنيزة لإعادة استخدمها في أغراض الري","authors":"Hago Abdelmagid","doi":"10.4197/MET.7-1.3","DOIUrl":"https://doi.org/10.4197/MET.7-1.3","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"1993 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131018398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Pollen Source on Some Fruit Characteristics Changing of cv. Helawi@@@تأثير صنف اللقاح على التغيرات في بعض الصفات الفيزيائية والكيميائية لثمار نخيل التمر صنف الحلاوي","authors":"A. Wahid, K. Abbas, Mazhar Abbas","doi":"10.4197/MET.22-2.5","DOIUrl":"https://doi.org/10.4197/MET.22-2.5","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126909434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessment and Error Analysis of the Energy Balance-Bowen Ratio Method for Estimation of Evaporation in an Arid Climate@@@تقييم وتحليل أخطاء معادلة توازن الطاقة لتقدير التبخر في مناخ جاف","authors":"M. Abdullah","doi":"10.4197/MET.8-1.1","DOIUrl":"https://doi.org/10.4197/MET.8-1.1","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"273 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123147635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this research, hydrologic calculations have been made for Wadis Hada Al Sham and Usfan including the runoff, the interception, the infiltration, and the sediment load. These calculations have depended on the meteor- ological, the morphological, and the geological characteristics of the wadis as well as the results of infiltration tests and sieve analyses of soil samples from the wadis. The calculations were repeated for storms of different return periods 2, 5, 10, 20, 50, and 100 years and variable storm duration of 0.5, 1.0, and 2.0 hours. The study results are presented in the form of runoff hydrographs and tables including water volumes and rates at the outlet of the wadis. A hydro- morphological model developed by MIT has been used in the calculations. It had been calibrated in Wadi Ghuran that extends on the northern boundary of the studied wadis and has runoff records. Results of study are presented only at the outlet of Hada Al Sham and Usfan at sections L2 and U1, respectively. Calculations at section U1 have shown that if the entire region is subject to a storm of one hundred-year and duration of half an hour (as an extreme case), the resulting runoff hydrograph has three peaks with a maximum discharge of 10100 m 3 /sec. The corresponding water volumes of interception, infiltration and runoff are 23.64, 79.47, and 163 millions cubic meters, respectively. The corresponding equivalent heights are 0.012, 0.043, and 0.0876 m over the en- tire area that is about 1861 km 2 . The sum of these equivalent heights is equal to the precipitation value (0.143 m) coming with the corresponding storm. It has been recommended to install gauging stations, for the runoff, at the outlet of the sub-basins of the studied wadis to provide continuous records that would help in any future calibration of the hydro-morphological model. Also, it has been advised to apply this methodology of study in other wadis of similar con- ditions.
在本研究中，对哈达沙姆河和乌斯凡河进行了水文计算，包括径流量、截流、入渗和泥沙负荷。这些计算依赖于河流的流星学、形态学和地质特征，以及对河流土壤样本的渗透试验和筛分分析的结果。对2年、5年、10年、20年、50年和100年不同回复期和0.5、1.0和2.0小时不同持续时间的风暴重复计算。研究结果以径流水文图和表格的形式呈现，包括河口出口的水量和速率。计算中采用了麻省理工学院开发的水形态模型。它是在Wadi Ghuran进行校准的，该Wadi Ghuran延伸到所研究的河流的北部边界，并有径流记录。研究结果仅在Hada Al Sham和Usfan出口分别在L2和U1段给出。U1部分的计算表明，如果整个地区遭遇一次百年一遇的风暴，持续时间为半小时(作为极端情况)，则产生的径流水文曲线有三个峰值，最大流量为10100m3 /s。相应的截流水量为23.64亿立方米，入渗水量为79.47亿立方米，径流量为1.63亿立方米。其等效高度分别为0.012、0.043和0.0876 m，覆盖面积约为1861 km2。这些等效高度之和等于相应风暴带来的降水值(0.143 m)。有人建议在所研究的河道的子流域出口处安装径流测量站，以提供连续的记录，这将有助于今后对水文形态模型进行校准。此外，还建议将这种研究方法应用于其他条件相似的地区。
{"title":"Hydrologic Calculations in Wadis Hada Al Sham and Usfan@@@حسابات مائية في وادي هدا الشام ووادي عسفان","authors":"S. El-Didy","doi":"10.4197/MET.9-1.13","DOIUrl":"https://doi.org/10.4197/MET.9-1.13","url":null,"abstract":"In this research, hydrologic calculations have been made for Wadis Hada Al Sham and Usfan including the runoff, the interception, the infiltration, and the sediment load. These calculations have depended on the meteor- ological, the morphological, and the geological characteristics of the wadis as well as the results of infiltration tests and sieve analyses of soil samples from the wadis. The calculations were repeated for storms of different return periods 2, 5, 10, 20, 50, and 100 years and variable storm duration of 0.5, 1.0, and 2.0 hours. The study results are presented in the form of runoff hydrographs and tables including water volumes and rates at the outlet of the wadis. A hydro- morphological model developed by MIT has been used in the calculations. It had been calibrated in Wadi Ghuran that extends on the northern boundary of the studied wadis and has runoff records. Results of study are presented only at the outlet of Hada Al Sham and Usfan at sections L2 and U1, respectively. Calculations at section U1 have shown that if the entire region is subject to a storm of one hundred-year and duration of half an hour (as an extreme case), the resulting runoff hydrograph has three peaks with a maximum discharge of 10100 m 3 /sec. The corresponding water volumes of interception, infiltration and runoff are 23.64, 79.47, and 163 millions cubic meters, respectively. The corresponding equivalent heights are 0.012, 0.043, and 0.0876 m over the en- tire area that is about 1861 km 2 . The sum of these equivalent heights is equal to the precipitation value (0.143 m) coming with the corresponding storm. It has been recommended to install gauging stations, for the runoff, at the outlet of the sub-basins of the studied wadis to provide continuous records that would help in any future calibration of the hydro-morphological model. Also, it has been advised to apply this methodology of study in other wadis of similar con- ditions.","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"1043 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123331207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of The Proposed Drainage Network for Lowering the Groundwater Levels in Al-Dawadmi Town@@@تقييم شبكة الصرف المقترحة لتخفيض مناسيب المياه الجوفية في مدينة الدوادمي","authors":"S. El-Didy","doi":"10.4197/MET.8-1.10","DOIUrl":"https://doi.org/10.4197/MET.8-1.10","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"740 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122951762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mosquitocidal and Oviposition Deterrent Effects in Medicinal and other Plant Extracts on Culex pipiens L.@@@الأثر الرادع لمستخلصات نباتات طبية وغيرها على بعوض كيوليكس بيبينزل","authors":"Eltayeb Elhag","doi":"10.4197/MET.10-1.5","DOIUrl":"https://doi.org/10.4197/MET.10-1.5","url":null,"abstract":"","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116668160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The relationship between the total amount of ozone content with the development of a cyclonic system that occurred in the period 17 to 28 January 2005 has been studied. It was found that the total amount of ozone increases and decreases with the development and weakening of the cyclonic system respectively. There is also a good correlation between total amount of ozone with the thickness of height between 1000-500 hPa and tropopause pressure. This strong relationship between the total amount of ozone with these two parameters was used to deduce a linear regression equation relating them. The residual method has been used to evaluate linear regression equation relating the total amount of ozone with thickness of height and tropopause pressure. The total multiple correlations reached to 0.98 after using two predictors. These results were deduced only from the short data record and is to be taken as preliminary study pending further detailed examination.
{"title":"Atmospheric Ozone and Cyclogenesis@@@الأوزون في الغلاف الجوي وتكون وتطور المنخفضات","authors":"A. Al-Khalaf","doi":"10.4197/MET.19-2.7","DOIUrl":"https://doi.org/10.4197/MET.19-2.7","url":null,"abstract":"The relationship between the total amount of ozone content with the development of a cyclonic system that occurred in the period 17 to 28 January 2005 has been studied. It was found that the total amount of ozone increases and decreases with the development and weakening of the cyclonic system respectively. There is also a good correlation between total amount of ozone with the thickness of height between 1000-500 hPa and tropopause pressure. This strong relationship between the total amount of ozone with these two parameters was used to deduce a linear regression equation relating them. The residual method has been used to evaluate linear regression equation relating the total amount of ozone with thickness of height and tropopause pressure. The total multiple correlations reached to 0.98 after using two predictors. These results were deduced only from the short data record and is to be taken as preliminary study pending further detailed examination.","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114298764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An expe rime ntal study was carr ied out to estimate the effect of different irrigatio n level s o n growth and productivity of barle ycro p. Th e ex periment was conducted at Had a Al-Sh arn Sta tion of King Abdulaziz Uni versity in Saudi Ar abia. The irrigatio n tre atments were designed based o n the depleti on rat io meth od, where, the considered depl et ion rati os for the tre atments were 50% , 30% , and 10% from the tot al available wate r in soil roo t depth . The applied irrigatio n water, and the irr igation interv als corres pon ding to the differen t irrigation tr eatments were calculat ed . The soil water properties and interrel at ionshi p were mea sur ed in field and laborat ory . The flood irri gati on syste m (basin meth od ) was applied for irrig ati on. Th e main co nclusio ns of th e stud y are th at , the irrigation levels have a highly signif icant effect on the crop dry yield than th at of th e oth er plant var iabl es. Meanwhile , the cro p yield is increase d as the applied depl etion per cent age is de creased .
{"title":"Effect of Different Irrigation Treatments on Growth and Yield of Barley Crop@@@تأثير معاملات مختلفة من الري على معدل نمو وإنتاجيةمحصول الشعير","authors":"Abdulmonem A. EL-ToUKHY, Mohamed Kiwan","doi":"10.4197/MET.6-1.6","DOIUrl":"https://doi.org/10.4197/MET.6-1.6","url":null,"abstract":"An expe rime ntal study was carr ied out to estimate the effect of different irrigatio n level s o n growth and productivity of barle ycro p. Th e ex periment was conducted at Had a Al-Sh arn Sta tion of King Abdulaziz Uni versity in Saudi Ar abia. The irrigatio n tre atments were designed based o n the depleti on rat io meth od, where, the considered depl et ion rati os for the tre atments were 50% , 30% , and 10% from the tot al available wate r in soil roo t depth . The applied irrigatio n water, and the irr igation interv als corres pon ding to the differen t irrigation tr eatments were calculat ed . The soil water properties and interrel at ionshi p were mea sur ed in field and laborat ory . The flood irri gati on syste m (basin meth od ) was applied for irrig ati on. Th e main co nclusio ns of th e stud y are th at , the irrigation levels have a highly signif icant effect on the crop dry yield than th at of th e oth er plant var iabl es. Meanwhile , the cro p yield is increase d as the applied depl etion per cent age is de creased .","PeriodicalId":254766,"journal":{"name":"Journal of King Abdulaziz University-meteorology, Environment and Arid Land Agriculture Sciences","volume":"2008 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125624157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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