نتایج جستجو برای: seasonality

تعداد نتایج: 10267  

2010
J. Parajka S. Kohnová G. Bálint M. Barbuc M. Borga P. Claps S. Cheval A. Dumitrescu E. Gaume K. Hlavčová R. Merz M. Pfaundler G. Stancalie J. Szolgay G. Blöschl

The aim of this paper is to analyse the differences in the long-term regimes of extreme precipitation and floods across the Alpine-Carpathian range using seasonality indices and atmospheric circulation patterns to understand the main flood-producing processes. This is supported by cluster analyses to identify areas of similar flood processes, both in terms of precipitation forcing and catchment...

2015
Lei Wang Darryn W. Waugh

The seasonality of the 21st century trends in tropical lower stratospheric temperature (LST) is examined in simulations by a group of comprehensive chemistry-climate models. In contrast to the past LST trends, there is robust seasonal dependence among ensembles of the same model. Furthermore, most models show strongest cooling around July–September and minimal cooling in February–March, which r...

2012
A. Capet

Introduction Conclusions References

Journal: :The British journal of psychiatry : the journal of mental science 2003
Erin E Michalak Clare Wilkinson Kerenza Hood Chris Dowrick Greg Wilkinson

BACKGROUND Seasonal affective disorder (SAD) is now a well-described form of depressive disorder. However, relatively little research has focused upon psychosocial factors and SAD. AIMS To determine the association between demographic/psychosocial factors and increased reported seasonal patterns of mood disorder (seasonality) and SAD in a community sample in the UK. METHOD A total of 1250 p...

2013
B. Ford

We investigate the seasonality in aerosols over the Southeastern United States using observations from several satellite instruments (MODIS, MISR, CALIOP) and surface network sites (IMPROVE, SEARCH, AERONET). We find that the strong summertime enhancement in satelliteobserved aerosol optical depth (AOD) (factor 2–3 enhancement over wintertime AOD) is not present in surface mass concentrations (...

2018
Jo Røislien Signe Søvik Torsten Eken

BACKGROUND Trauma is a leading global cause of death, and predicting the burden of trauma admissions is vital for good planning of trauma care. Seasonality in trauma admissions has been found in several studies. Seasonal fluctuations in daylight hours, temperature and weather affect social and cultural practices but also individual neuroendocrine rhythms that may ultimately modify behaviour and...

2014
William Beltrán Joseph M. Wunderle

The seasonal dynamics of foliage arthropod populations are poorly studied in tropical dry forests despite the importance of these studies for understanding arthropod population responses to environmental change. We monitored the abundance, temporal distributions, and body size of arthropods in five naturalized alien and one native tree species to characterize arthropod seasonality in dry novel ...

2010
Ian Eisenman

[1] The seasonal cycle in Arctic sea ice extent is asymmetric. Its amplitude has grown in recent decades as the ice has retreated more rapidly in summer than in winter. These seasonal disparities have typically been attributed to different physical factors operating during different seasons. Here we show instead that the seasonal asymmetries in Arctic sea ice extent are a geometric consequence ...

2017
Arcady A. Putilov

Compared to literature on seasonal variation in mood and well-being, reports on seasonality of trouble sleeping are scarce and contradictive. To extend geography of such reports on example of people naturally exposed to high-amplitude annual variation in daylength and/or temperature. Participants were the residents of Turkmenia, West Siberia, South and North Yakutia, Chukotka, and Alaska. Healt...

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