نتایج جستجو برای: top right 850 hpa

تعداد نتایج: 410844  

Journal: :Remote Sensing 2022

FY-4A GIIRS temperature profile products have provided unprecedented information for studying the atmospheric characteristics of thermal structures since 2020. The main objective this paper is to evaluate by using radiosonde observations and then apply them diagnosis winter precipitation types in southern China. four (clear sky perfect quality, cloudy good quality bad quality) show different pe...

1999
C.-P. CHANG YONGSHENG ZHANG TIM LI

The relationship between the interannual variations of the East Asian summer monsoon and that of the tropical SST shows considerable variations. In this study, rainfall in the southeastern coastal area of China (SEC) during 1951–96 is used to composite the tropical SST, 850-hPa wind, and 500-hPa height. The results relative to the May–June rainfall, which represents most of the SEC summer monso...

Journal: :Atmosfera 2022

The Amazon Basin is dominated by convective rainfall with significant spatial and diurnal variability. Diurnal seasonal distributions of events were determined from Cloud Top Temperature (CTT) between January 2008 December 2010 in city Belém-PA. decis technique was used to select the most intense (rainfall rate ≥ 15 mm h–1), which subsequently, subclassified into deep convection (DCE) shallow (...

Journal: :تحقیقات جغرافیایی 0
قاسم عزیزی محسن سلطانی علی حنفی عباس رنجبر ابراهیم میرزایی

to analysis the mechanisms of blocking high effects on heavy precipitations in northwest of iran, we selected a short period of heavy precipitation (25-28 october 2008). in this case, weather maps such as mean of sea level pressure, 850-hpa and 500-hpa geopotential height levels were assessed and analyzed for the whole period. the position and movement of the atmospheric systems such as cyclone...

Journal: :Geophysical Research Letters 2021

Methods to define the East Asian monsoon usually involve ad hoc and diverse criteria. This study adopts a simple coherent approach based on self-organizing map systematically derive annual cycle 850-hPa wind fields. The derived onset dates in warm season agree well with literature despite lacking documentation for winter-season stages. Linear regression suggests an inverse relationship between ...

Journal: :تحقیقات جغرافیایی 0
فخری سادات فاطمی نیا دانشکده علوم جغرافیایی دانشگاه اصفهان هوشمند عطائی دانشگاه پیام نور اصفهان

abstractâ in this study, for spatial-temporal analyzing of cyclones in 1376, the spatial range of 30 to 80 degrees of east longitude and 0 to 80 degrees of north latitude and geo potential data with 2/ 5* 2 / 5 degrees of networking in arc levels of 1000, 925, 850, 700, 600 and 500 hpa have been used. these data are extracted for six hours (00, 06, 12, 18 zulu) database (ncep / ncar). so that, ...

Journal: :Atmospheric Science Letters 2022

This study investigates the long-term tendency in ratio of rapid intensification (RI) cases to total number tropical cyclone over western North Pacific (WNP) during June between 1982 and 2021. There is a significant decreasing trend RI June, which opposite increasing July–November. From 1982–2005 2006–2021, significantly decreases region 5°–20°N 120°–150°N, while showing weak changes other part...

Journal: :Psychoneuroendocrinology 2013
Andre R Brunoni Marie-Anne Vanderhasselt Paulo S Boggio Felipe Fregni Eduardo Miranda Dantas José G Mill Paulo A Lotufo Isabela M Benseñor

Recent evidence has supported the notion that the hypothalamic-pituitary-adrenal (HPA) and the sympatho-adreno-medullary (SAM) systems are modulated by cortical structures such as the prefrontal cortex. This top-down modulation may play a major role in the neuroendocrine changes associated with stressful events. We aimed to investigate further this hypothesis by modulating directly prefrontal c...

ژورنال: :نیوار 0
مژده پدرام پژوهشکده هواشناسی پروین عربلی سازمان هواشناسی کشور

پس پردازش برون داد خام مدل های مورد استفاده در پیش بینی عددی وضع هوا از گام های اصلی و ضروری این نوع فرآیند پیش بینی است. در مراکز هواشناسی پیشرفته جهان برای پس پردازش برون داد مدل های عددی، روش های مختلفی به کار گرفته می شوند که غالباً بر پایه تحلیل ها و محاسبات آماری استوارند. نظر به اهمیت موضوع، در این مقاله ابتدا روش های متداول پس پردازش آماری داده های خام مدل های پیش بینی عددی وضع هوا مانند...

2007
Soroosh Sorooshian

Workshop/Meeting Summaries: – First NEESPI Summit 13 – GABLS Workshop 14 More depleted values of δD shown at the higher latitudes indicate a long history of condensation during transit from a lower latitude source, while less depleted values in the tropics reflect ventilation of recently evaporated boundary layer vapor into the free troposphere (above 850 hPa, where TES is sensitive). Knowledge...

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