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The present study aims to assess seasonal trends in thermal comfort and heat stress indices for outdoor occupations over a 15‐year period using the Iranian Meteorological Organization's database for Sari, Iran. Hourly and daily meteorological data including temperature, wind speed, cloudiness, relative humidity and vapor pressure measurements for Sari city from 2000 to 2014 are used. The wet‐bulb...
The quality and applications of vertical velocity data from SODAR and radar wind profilers are examined in this paper. The vertical velocity data from collocated SODAR and boundary layer type wind profilers are compared for a period of 7 months. It is found that the two datasets are well correlated, but the slope of the linear fit to the data has a significant deviation from 1. This may be related...
Precipitation is one of the most studied atmospheric parameters, and its occurrence has a direct relationship with the atmospheric circulation pattern. This study investigates the relationship between relative vorticity in the mid‐troposphere (at 500 hPa), and precipitation amounts and the number of rain days over the period 1979–2013 in Iran. Relative vorticity was calculated using the u and v components...
A typical squall line with heavy rainfall (≥100mm in 24h) was observed on 25 October 2014 in Antalya, a province located in southwest Turkey. Residential areas sustained serious damage, and the rainfall caused significant disruptions to transportation and daily life, as people were evacuated and many cars were flooded. This study examines the factors that caused the severe rainfall over Antalya. The...
The measurement of ocean surface wind speed (WS) during cyclones plays a key role in improving cyclone track and intensity predictions; however, limited in situ WS observations during cyclone events are not sufficient for the continuous monitoring of intensity and track. Although satellite measurements provide an alternative means of obtaining such data, the performance of high‐frequency microwave...
The predictors of the south Asian summer monsoon used in statistical long‐range forecasting by the Indian and Pakistan Meteorological Departments have, in recent decades, had their validity reassessed. The results of such studies, including this one, show that the relationships between numerous predictors and the monsoon rainfall have changed over time, and many predictors have lost or gained significance...
Objectives
The aim of this study was to analyse the thermal discomfort of outdoor environments in two climates of Iran using physiological equivalent temperature (PET), predicted mean vote (PMV) indices and Universal Thermal Climate Index (UTCI).
Methods
In this study, the meteorological data recorded by the meteorological organisation in a 15‐year period, including temperature, air velocity, cloudiness,...
Precipitation is a crucial element in the study of climate change and is a key component of climate change processes and the hydrological cycle. Changes in precipitation therefore have wide ranging implications across various fields, including agriculture, ecology and economic development. Known as the ’Mother River of China’, the Yellow River is the sixth longest river in the world and the second‐longest...
There exists a network of wind profilers at locations across the British Isles and Europe which continuously provide wind information throughout the lower atmosphere, primarily for assimilation into numerical forecast models. However, the algorithms used for processing the profiler signals also provide secondary data: the virtual vertical velocity and signal‐to‐noise ratio. One of the UK Met Office...
Although ocean salinity is a key parameter for determining the ocean circulation on local and global scales, measuring salinity from space has only been possible since the launch of the European Space Agency's Soil Moisture and Ocean Salinity (SMOS) mission in November 2009. This is in contrast to the other key oceanographic parameter, temperature, which has been measured from space using satellite...
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