پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 163 |
| تعداد شماره‌ها | 6,762 |
| تعداد مقالات | 72,830 |
| تعداد مشاهده مقاله | 131,692,875 |
| تعداد دریافت فایل اصل مقاله | 103,451,583 |
Spatial-Temporal Variations and Trends in Freezing Level Height in Iran: An Analytical Perspective | ||
| فیزیک زمین و فضا | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 09 اردیبهشت 1404 اصل مقاله (1.18 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jesphys.2025.386947.1007650 | ||
| نویسندگان | ||
| Hasan Ghadermazi1؛ جعفر معصوم پور سماکوش* 1؛ Ehsan Seyed Fatemi2؛ Maryam Hafezparast2 | ||
| 1Department of Geography, Faculty of Literature and Humanities, Razi University, Kermanshah, Iran | ||
| 2Department of Water Engineering, Campus of Agriculture and Natural Resources, Razi University, Kermanshah, Iran | ||
| چکیده | ||
| This research has been performed to investigate the temporal and spatial changes of freezing level height in Iran in the statistical period from 1940 to 2023 using the modified Mann-Kendall non-parametric analysis method. The results of the study show that the freezing level height shows a significant upward trend from December to April. Except summer, the upward trend of seasonal changes in the freezing level height is quite evident in autumn, winter, and spring. The annual changes in the freezing level height show a significant upward trend during the period. Significant upward trends on a monthly, seasonal, and annual scale can show one of the consequences of climate change in Iran. The results of the survey of spatial changes show that the height of the freezing level has an inverse relationship with the latitude, and as the latitude decreases (towards southern regions of Iran), the height of the freezing level increases. This relationship is more in winter. The correlation coefficient of FLH changes with latitude is significant at the alpha level 0.05. The relationship between the changes in the height of the freezing level and the longitude is direct. As we move towards the east, the height of the freezing level also increases. The highest level of freezing level height is observed in Chabahar (4347.5 meters) in southeastern Iran. Considering the decrease in snow cover and increase in heavy rainfall in Iran, assessing variations in freezing level height can be useful for predicting these variables. | ||
| کلیدواژه‌ها | ||
| Freezing Level Height؛ Trend؛ Sen’s slop؛ Iran | ||
| مراجع | ||
|
| ||
|
آمار تعداد مشاهده مقاله: 57 تعداد دریافت فایل اصل مقاله: 75 |
||
سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب