نتایج جستجو برای: 13 synoptic patterns of troughs

تعداد نتایج: 21226114  

Journal: :Journal of Road Safety 2023

This paper is the last of a three-part series. Part 1 identified breadth weather factors collectively contributing to crash risk and consolidated relevant research. 2 illustrated cyclic nature climate, weather, crashes how they vary over time. In part 3, differences in conditions on days with high low casualty numbers, fatal long sequences without were analysed using readily available Bureau Me...

2009
lin tang Deliang chen Per-erik Karlsson Yongfeng Gu

The influence of synoptic circulation patterns on surface ozone concentrations at three monitoring sites in southern Sweden was investigated for the spring (April–May) and summer (June–August) periods 1990–2005. Synoptic circulation patterns were classified into six groups based on the Lamb Weather Types (LWTs). The analyses show that the anticyclonic weather pattern (A) and the directional flo...

2017
Yucong Miao Jianping Guo Shuhua Liu Huan Liu Zhanqing Li Wanchun Zhang Panmao Zhai

Meteorological conditions within the planetary boundary layer (PBL) are closely governed by large-scale synoptic patterns and play important roles in air quality by directly and indirectly affecting the emission, transport, formation, and deposition of air pollutants. Partly due to the lack of long-term fine-resolution observations of the PBL, the relationships between synoptic patterns, PBL st...

Today, dust and dust storms are among the most important environmental problems in the world and Iran, in particular. This study is conducted to identify synoptic patterns of the dust storms in Ardabil Province (Iran) and monitor the origin and pathway of its places. The study period is 34 years for1979 to 2013. The data used in this work are from synoptic stations of Ardabil province and the N...

Journal: :Bulletin of the American Meteorological Society 1954

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم انسانی 1393

in this research the focus of the researcher is on the influence of american myths that have long been held and offered by the american culture and ideologies. sam shepard is conceived to be one of the greatest playwrights of the contemporary american theater. in his works he depicts broken characters who are struggling to keep up with the national expectations but are ceaselessly borne back to...

Recently, increase in the cost of fossil fuels and taking into consideration the environmental effects of exploiting them, caused many researchers and governments to find some ways to make use of renewable energies more cost-effectively. Solar energy is a category of renewable energies which could be harvested via several technologies. One of the most practical methods is using parabolic trough...

2016
Dimitriy Levin Jeffrey J. Glasheen Tyree H. Kiser

Objective: A pharmacist and physician collaborative practice intervention to improve the initial dosing of vancomycin was implemented with the goal of decreasing the number of subtherapeutic first troughs and increasing the number of therapeutic troughs. Methods: Using the best available evidence, a nomogram was created to determine the initial vancomycin dose. The nomogram utilized actual body...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی و اجتماعی 1389

today the image of a permanent skeletal space of cities affected by some forces or mechanisms is put in time with social-economic development and while imposes a new face and perspective to physical anatomy of cities, and prepares field to changes in content and social- economic structures of cities too. simultaneously with quitting villages in order to settle in cities by villagers, the phen...

Journal: :جغرافیا و مخاطرات محیطی 0
فاطمه درگاهیان بهلول علیجانی حسین محمدی

1. introduction the effect of blocking on iran’s precipitation in numeral way and long-term has not been done yet. however, in some researches based on weak indexes like one-dimension has been implied to iran that in studying many cases we observe lack of blocking event and or their continuation that has been for less than 5 days. this phenomenon in some cases occurs in our country directly and...

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