نتایج جستجو برای: meteorological classification

تعداد نتایج: 513997  

Drought is one of the most prevalent and dangerous disturbances around the world, which cause significant economic and agricultural losses. Kerman province located in the center of Iran is in the first places of drought. The purpose of this research was to investigate the meteorological and hydrological drought condition of the study area. The relationship between meteorological and hydrologica...

2011
Dusan S. Zrnic Richard J. Doviak

Preamble This is the final report to Lockheed Martin on the requirements for a phased array weather radar. Discussed herein are those meteorological requirements that need to be met by weather radars having either reflector type antennas or active phased array elements. These requirements impact the design of the antenna, the transmitter-receiver, and signal processor. Justifications for these ...

2016
Pan Ma Shigong Wang Xingang Fan Tanshi Li

Emergency room (ER) visits for accidental casualties, according to the International Classification of Deceases 10th Revision Chapters 19 and 20, include injury, poisoning, and external causes (IPEC). Annual distribution of 187,008 ER visits that took place between 2009 and 2011 in Beijing, China displayed regularity rather than random characteristics. The annual cycle from the Fourier series f...

Journal: :Medicine and science in sports and exercise 2015
Samuel N Cheuvront Elizabeth M Caruso Kristen R Heavens Anthony J Karis William R Santee Chris Troyanos Pierre D'Hemecourt

UNLABELLED The location of the wet bulb globe temperature (WBGT) index measurement may affect heat stress flag category classification. PURPOSE This study aimed to compare WBGT measurements at three locations along the Boston Marathon race course and compare WBGT estimates for meteorological stations and 72-h advanced WBGT forecasts. METHODS WBGT was measured hourly from 1000 to 1400 h at a...

2011
C. Chemel H. Vaillant

8 Gases released from landfill sites into the atmosphere have the potential to cause olfactory nuisances within the surrounding com9 munities. Landfill sites are often located over complex topography for convenience mainly related to waste disposal and environmental 10 masking. Dispersion of odours is strongly conditioned by local atmospheric dynamics. Assessment of odour impacts needs to take ...

2017
Qingyu Jia Wenying Yu Li Zhou Chenghua Liang

Qingyu Jia 1,2 ID , Wenying Yu 2, Li Zhou 3 and Chenghua Liang 1,* 1 College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China; [email protected] 2 Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, China; [email protected] 3 Chinese Academy of Meteorological Sciences, China Meteorological Administration, 46 Zhongguancun...

Journal: :international journal of environmental research 2015
a. mavrakis l. salvati

greece has experienced particularly severe and frequent forest fires during summer 2007 together with exceptionally dry meteorological conditions culminated in distinct heat waves. the present study analyzes the time pattern of daily values of two fire risk indices (nesterov and angstrom) based on meteorological data made available for a number of gauging stations between 1 june and 31 august o...

2013

The main sources of meteorological data at high altitudes are radiosondes and Aircraft Meteorological Data Relay (AMDAR) data [1]. Mode-select (Mode-S) radars are capable of getting similar readings from aircraft as AMDAR; however, this source of meteorological data has not been used systematically so far. In this article, we analyze the meteorological data obtained by means of Mode-S radars an...

2007
E. Davakis S. Andronopoulos I. Kovalets N. Gounaris J. G. Bartzis S. G. Nychas

In previous work [Kovalets, I., Andronopoulos, S., Bartzis, J.G., Gounaris, N., Kushchan, A., 2004. Introduction of data assimilation procedures in the meteorological pre-processor of atmospheric dispersion models used in emergency response systems. Atmospheric Environment 38, 457–467.] the authors have developed data assimilation (DA) procedures and implemented them in the frames of a diagnost...

Journal: :Environmental Modelling and Software 2008
Oriol Jorba Thomas Loridan Pedro Jiménez-Guerrero Carlos Pérez José María Baldasano

CHIMERE is a chemical transport model widely used within the air quality scientific community. The actual version of CHIMERE is coupled with the MM5 mesoscale meteorological model. To facilitate model development, MM5 is replaced here with the Weather Research and Forecasting (WRF) model. With the accuracy of air quality models being highly dependent on the quality of meteorological drivers, th...

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