In Europe, rotavirus gastroenteritis peaks in late winter or early spring suggesting a role for weather factors in transmission of the virus. In this study, multivariate regression models adapted for time-series data were used to investigate effects of temperature, humidity and rainfall on reported rotavirus infections and the infection-rate parameter, a derived measure of infection transmissio...

The effect of bedding levels and trailer compartment on internal trailer temperature and relative humidity (RH) during loading and transport of finishing pigs was evaluated in cold and mild weather. Three levels of bedding were used in each experiment: 0.6 m³, 1.2 m³, and 2.4 m³. In mild weather, internal temperatures were lower when 1.2 m³ or 2.4 m³ of bedding were used during loading and tran...

A retrospective study of patients attending the emergency department with acute asthma was performed in Bermuda. Climatic data (barometric pressure, rainfall, humidity, and wind strength and direction) were obtained and compared with frequency of exacerbations of asthma. Three factors--namely, relative humidity, average daily temperature, and northeasterly winds--were found to be related to wor...

Correlate tweets with weather at corresponding location Mathematica’s WeatherData package Uses National Weather Service data For each of the 20 metropolitan areas, every hour: Cloud cover, Humidity, Precipitation, Temperature ,Wind speed Data Most methods for sentiment analysis use scored word lists Affective Norms of English Words (ANEW) Wilson, Wiebe and Hoffmann (WWH) Hu and Liu (HL) Can we ...

A method is proposed to increase the accuracy of satellite sensorderived near-surface humidity estimates. The method uses an operational atmospheric circulation model to correct the satellite sensor estimates of humidity from their regional bias. The method was applied to twelve orbits of the Special Sensor Microwave/Imager (SSM/I) selected between 1997 and 1998. The SSM/I-derived humidity esti...

Background Temperature, humidity, and other weather variables influence dengue transmission. Published studies show how the diurnal fluctuations of temperature around different mean temperatures influence dengue transmission. There are no published studies about the correlation between diurnal range of humidity and dengue transmission. Objective The goals of this study were to determine the cor...

High resolution computational weather models are becoming increasing complex. However, the analysis of these models has not benefited from recent advancements in volume visualization. This case study applies the ideas and techniques from multi-dimensional transfer function based volume rendering to the multivariate weather simulations. The specific goal of identifying frontal zones is addressed...

Extreme fire-weather conditions are usually thought of as discrete events rather than part of a continuum of meteorological and climatological variability. This study uses a synoptic climatological approach (weather typing) to examine the seasonal climatology of extreme fire-weather conditions across the southwest United States (Arizona and New Mexico) during the period of 1988–2003. Three key ...

BACKGROUND The occurrence of eclampsia may be related to season and altitude. METHODS We studied the influence of environmental factors such as range of temperature and relative humidity on the occurrence of eclampsia by collecting data on consecutive cases of eclampsia admitted to the Government Maternity Hospital, Hyderabad, from September 1987 to August 1988. The mean range of temperature ...

This paper compares syndromic surveillance and predictive weather-based models for estimating emergency department (ED) visits for Heat-Related Illness (HRI). A retrospective time-series analysis of weather station observations and ICD-coded HRI ED visits to ten hospitals in south eastern Ontario, Canada, was performed from April 2003 to December 2008 using hospital data from the National Ambul...