scholarly journals The Diurnal Temperature Range for Europe: A Search for Cosmic Ray Forbush Decrease Manifestations and the DTR Periodicities

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
A. D. Erlykin ◽  
A. W. Wolfendale
Keyword(s):  
Time Series ◽  
Solar Irradiance ◽  
Diurnal Temperature Range ◽  
Forbush Decrease ◽  
Cosmic Ray ◽  
Independent Study ◽  
Forbush Decreases ◽  
Positive Evidence ◽  
Diurnal Temperature ◽  
Temperature Range

Following on previous work by others, which gave evidence for few days’ changes in the European Diurnal Temperature Range (DTR) apparently correlated with Cosmic Ray Forbush Decreases, we have made an independent study. We find no positive evidence. An analysis has also been made of the Fourier components of the time series of the DTR value (taken as deviations from a ±10 day running mean). Evidence for a number of interesting periods is found, including one at about 27 days, albeit with a variability with time. The same period of solar irradiance (particularly in the UV) is favoured as the explanation.

scholarly journals Diurnal temperature range and childhood asthma: a time-series study

2013 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhiwei Xu ◽  
Cunrui Huang ◽  
Hong Su ◽  
Lyle R Turner ◽  
Zhen Qiao ◽  
...  
Keyword(s):  
Time Series ◽  
Childhood Asthma ◽  
Diurnal Temperature Range ◽  
Diurnal Temperature ◽  
Time Series Study ◽  
Temperature Range ◽  
Series Study

scholarly journals Effects of diurnal temperature range on first-ever strokes in different seasons: a time-series study in Shenzhen, China

BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e033571
Author(s):  
Lin Lei ◽  
Junzhe Bao ◽  
Yanfang Guo ◽  
Qiong Wang ◽  
Ji Peng ◽  
...  
Keyword(s):  
Time Series ◽  
Diurnal Temperature Range ◽  
Global Climate ◽  
Age Groups ◽  
Middle Aged ◽  
Aged Patients ◽  
Old Patients ◽  
Diurnal Temperature ◽  
Temperature Range ◽  
Different Seasons

ObjectiveDiurnal temperature range (DTR) is an important meteorological indicator of global climate change; high values of DTR may induce stroke morbidity, while the related high-risk periods and sensitive populations are not clear. This study aims to evaluate the effects of DTR on first-ever strokes in different seasons and in relation to sensitive populations.MethodsWe collected data on 142 569 first-ever strokes during 2005–2016 in Shenzhen. We fitted a time-series Poisson model in our study, estimating the associations between DTR and first-ever strokes, with a distributed lag non-linear model. Then, we calculated strokes attributable to high DTR in different genders, age groups, education levels and stroke subtypes.ResultsHigh DTR had a significant association with first-ever strokes, and the risk of stroke increased with the rise of DTR in the summer and winter. In total, 3.65% (95% empirical CI (eCI) 1.81% to 5.53%) of first-ever strokes were attributable to high DTR (5.5°C and higher) in the summer, while 2.42% (95% eCI 0.05% to 4.42%) were attributable to high DTR (8°C and higher) in the winter. In the summer, attributable fraction (AF) was significant in both genders, middle-aged and old patients, patients with different levels of education, as well as patients with cerebral infarction (CBI); in the winter, AF was significant in middle-aged patients, patients with primary and lower education level, as well as patients with CBI.ConclusionsHigh DTR may trigger first-ever strokes in the summer and winter, and CBI is more sensitive than intracerebral haemorrhage to DTR. Most people are sensitive to high DTR in the summer, while middle-aged and low-education populations are sensitive in the winter. It is recommended that the DTR values be reported and emphasised in weather forecast services, together with the forecasts of heat and cold.

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