Results 21 to 30 of about 84,765 (300)

Scorch marks from the sky [PDF]

open access: yes, 2010
Daily sunshine duration is commonly reported at weather stations. Beyond the basic duration report, more information is available from scorched cards of Campbell-Stokes sunshine recorders, such as the estimation of direct-beam solar irradiance.
Baker   +22 more
core   +1 more source

Why does Rhinopithecus bieti prefer the highest elevation range in winter? A test of the sunshine hypothesis. [PDF]

open access: yesPLoS ONE, 2011
Environmental factors that affect spatiotemporal distribution patterns of animals usually include resource availability, temperature, and the risk of predation.
Rui-Chang Quan   +6 more
doaj   +1 more source

Estimating Sunshine Duration Using Hourly Total Cloud Amount Data from a Geostationary Meteorological Satellite

open access: yesAtmosphere, 2019
Sunshine duration is an important indicator of the amount of solar radiation received in a region and an important input parameter for the study of atmospheric energy balance, climate change, ecosystem evolution, and social sustainability.
Weiwei Zhu   +7 more
doaj   +1 more source

Mathematical Determination of the Upper and Lower Limits of the Diffuse Fraction at Any Site

open access: yesApplied Sciences, 2021
A mathematical method for accurately determining the upper and lower diffuse-fraction (kd) limits that divide the sky into clear, intermediate, and overcast is developed. Fourteen sites around the world are selected for demonstrating the methodology. The
Harry D. Kambezidis   +2 more
doaj   +1 more source

Impact of global dimming on reference evapotranspiration in Hai River basin, China [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2015
Global radiation can impact the surface energy balance and hydrological cycle. This study analysed changes in global radiation in Hai River basin, China during 1960 to 2012.
N. Zhao, X. Zeng, H. Sun
doaj   +1 more source

Long-term summer sunshine/moisture stress reconstruction from tree-ring widths from Bosnia and Herzegovina [PDF]

open access: yes, 2013
We present the first summer sunshine reconstruction from tree-ring data for the western part of the Balkan Peninsula. Summer sunshine is tightly connected with moisture stress in trees, because the moisture stress and therefore the width of annual tree ...
A. Ceglar, S. Poljanšek, T. Levanič
core   +1 more source

Monthly average daily global and diffuse solar radiation based on sunshine duration and clearness index for Brasov, Romania [PDF]

open access: yes, 2014
The main objective of this study is to develop single location appropriate models for the estimation of the monthly average daily global and diffuse horizontal solar radiation for Brasov, Romania.
Ahmad F.   +10 more
core   +1 more source

A comparison of sunshine duration records from the Campbell-Stokes sunshine recorder and CSD3 sunshine duration sensor [PDF]

open access: yesTheoretical and Applied Climatology, 2014
The purpose of this paper is to compare daily sunshine duration data measured using a Campbell-Stokes sunshine recorder (CS) and a CSD3 sunshine duration sensor (AUTO) as well as to attempt to explain discrepancies between the two data sets. The paper is based on heliographic data and cloudiness observations for 2007–2012.
openaire   +2 more sources

Urbanization effect on trends in sunshine duration in China [PDF]

open access: yesAnnales Geophysicae, 2017
There is an ongoing debate on whether the observed decadal variations in surface solar radiation, known as dimming and brightening periods, are a large-scale or solely local phenomenon.
Y. Wang   +4 more
doaj   +1 more source

Malaria incidence from 2005–2013 and its associations with meteorological factors in Guangdong, China [PDF]

open access: yes, 2015
Background: The temporal variation of malaria incidence has been linked to meteorological factors in many studies, but key factors observed and corresponding effect estimates were not consistent.
Chun-Quan Ou   +9 more
core   +2 more sources

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