Results 11 to 20 of about 987,964 (347)

Comparing causal techniques for rainfall variability analysis using causality algorithms in Iran

open access: yesHeliyon, 2018
Causal analysis (CA) is a strong quantitative approach whose mechanisms have climatic predictions. In this study, we studied the patterns of causality (PC) on the effect of rainfall (ER) using climatic series collected from 170 stations for the period ...
Majid Javari
doaj   +1 more source

Implications of Atmospheric Differential Refraction for Adaptive Optics Observations [PDF]

open access: yes, 2002
Many adaptive optics systems operate by measuring the distortion of the wavefront in one wavelength range and performing the scientific observations in a second, different wavelength range.
Roe, Henry G.
core   +2 more sources

The long-term assessment of air quality on an island in Malaysia

open access: yesHeliyon, 2018
This study aims to evaluate the air quality on Langkawi Island, a famous tourist destination in Malaysia, using 13 years of data (1999–2011) recorded by the Malaysian Department of Environment.
Nor Diana Abdul Halim   +6 more
doaj   +1 more source

A sensitivity study of Surface Wind simulations over Coastal Ghana to selected Time Control and Nudging options in the Weather Research and Forecasting Model

open access: yesHeliyon, 2019
Over the years, the Weather Research and Forecasting Model (WRF) has been gaining popularity as a low-cost alternative source of data for wind resource assessments.
Denis E.K. Dzebre   +3 more
doaj   +1 more source

Absorption coefficient of carbon dioxide across atmospheric troposphere layer

open access: yesHeliyon, 2018
Absorption coefficient affected by carbon dioxide concentration and optical path length responsible for temperature or global warming across the troposphere layer, which is less than the altitude of 10 km in the atmosphere, is systematically presented in
Peng-Sheng Wei   +6 more
doaj   +1 more source

The occurrence of cyanobacteria blooms in freshwater ecosystems and their link with hydro-meteorological and environmental variations in Tanzania

open access: yesHeliyon, 2019
Cyanobacteria (blue-green algae) are photosynthetic bacteria that under favorable environmental conditions produce secondary metabolites (cyanotoxins) which are harmful to the environment, including humans. The mass proliferation of harmful cyanobacteria
Offoro N. Kimambo   +2 more
doaj   +1 more source

Short-term wind speed forecasting in Uruguay using computational intelligence

open access: yesHeliyon, 2019
Short-term wind speed forecasting for Colonia Eulacio, Soriano Department, Uruguay, is performed by applying an artificial neural network (ANN) technique to the hourly time series representative of the site.
P.J. Zucatelli   +7 more
doaj   +1 more source

The increasing atmospheric CO2 over India: Comparison to global trends

open access: yesiScience, 2022
Summary: Atmospheric CO2 is the key Greenhouse Gas in terms of its global warming potential and anthropogenic sources. Therefore, it is important to analyze the changes in the concentration of atmospheric CO2 to monitor regional and global climate change.
Jayanarayanan Kuttippurath   +3 more
doaj   +1 more source

A new approach for processing climate missing databases applied to daily rainfall data in Soummam watershed, Algeria

open access: yesHeliyon, 2019
Missing data is a very frequent problem in climatology, it influences on the quality of results that will afford in hydrological studies, as well as water resources management.
Amir Aieb   +4 more
doaj   +1 more source

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