نتایج جستجو برای: middle right 500 hpa
تعداد نتایج: 511961 فیلتر نتایج به سال:
Oxidized mercury (Hg(II)) is chemically produced in the atmosphere by oxidation of elemental mercury and is directly emitted by anthropogenic activities. We use the GEOS-Chem global chemical transport model with gaseous oxidation driven by Br atoms to quantify how surface deposition of Hg(II) is influenced by Hg(II) production at different atmospheric heights. We tag Hg(II) chemically produced ...
To further verify the ozone profile reliability of satellite remote sensing for the ozone valley over the Tibetan Plateau in the core area of the South Asian high in summer, we validate the ozone products from the microwave limb sounder (MLS) onboard the Aura satellite over the Tibetan plateau using electrochemical concentration cell (ECC) ozonesonde data of 2016 for Ngari, Tibet. The MLS versi...
پس‌پردازش برون‌داد خام مدل‌های مورد استفاده در پیش‌بینی عددی وضع هوا از گام‌های اصلی و ضروری این نوع فرآیند پیش‌بینی است. در مراکز هواشناسی پیشرفته جهان برای پس‌پردازش برون‌داد مدل‌های عددی، روش‌های مختلفی به کار گرفته می‌شوند که غالباً بر پایه تحلیل‌ها و محاسبات آماری استوارند. نظر به اهمیت موضوع، در این مقاله ابتدا روش‌های متداول پس‌پردازش آماری داده‌های خام مدل‌های پیش‌بینی عددی وضع هوا مانند...
Ahvaz can be regarded as one of the most polluted cities in the world in terms of air pollution. Successive years of drought and weather conditions in recent years have resulted in particulate matter (PM10) concentration in Ahvaz. In this study, using probability distribution techniques, an appropriate threshold to identify the PM10 maximum extreme concentrations (MEC) has been detected. Based ...
Twenty-eight years of NCEP–NCAR reanalysis data are employed in a composite analysis of the structure and evolution of the large-scale circulation associated with rapid, subseasonal, westward retractions of the Northern Hemisphere Pacific jet. Nineteen Pacific jet retractions are identified in the dataset. The salient characteristics of these transitions are presented, emphasizing the structure...
Hyperlipidemia and stress are important factors affecting cardiovascular health in middle-aged individuals. We investigated the effects of N-acetylcysteine (NAC) and sesame oil on the lipidemic status, liver architecture and the hypothalamic-pituitary-adrenal (HPA) axis of middle-aged mice fed a cholesterol-enriched diet. We randomized 36 middle-aged C57bl/6 mice into 6 groups: a control group,...
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