by Mario Lefebvre

Received: 26 September 2022;  Published: 08 December 2022;  doi: 10.21926/aeer.2204049

A filtered Poisson process is proposed as a model for river flows. With the help of real-life data, the model parameters are estimated. Mathematical formulae are derived in order to estimate the various return periods of the river. An application to two rivers shows that the point estimates are very close to the corresponding values computed by hydrologists, based on historical data. Moreover, by modifying the values of the parameters in the model, we can see the potential effects of climate change on the return pe [...]

by Rasaq Adewemimo Adeniji-Adele  , Aghogho Ogwala  , Eugene Onori  , Cornelius Ogabi  , Oluwafunmilayo Ometan  , Yusuf Kayode  , Emmanuel Somoye  and Janet Odewale

Received: 13 September 2022;  Published: 05 December 2022;  doi: 10.21926/aeer.2204048

Ultraviolet (UV) and X-ray radiation are the primary causes of ionization that produce electron density in sufficient quantities to promote the propagation of satellite radio signals in the ionosphere. The electron densities suffer from spatio-temporal variations, and this poses different degrees of threats to satellite radio signals propagating through the ionosphere. We aimed to characterize the maximum electron density of the F2 layer (NmF2) in the middle-latitude ionosphere over Grahamstown, South Africa (Geogr [...]

by Noh-hyun Lim  , Yongjin Lee  , Jieon Lee  and Jongsek Kim

Received: 02 September 2022;  Published: 02 December 2022;  doi: 10.21926/aeer.2204047

Due to recent global warming and climate change events, about 127 countries have declared themselves carbon neutral since the Paris Agreement was signed. Furthermore, agriculture is directly or indirectly affected by climate change. In particular, the importance of carbon neutrality is very high due to the high carbon absorption potential of forestry biomass. In the global beverage market, green tea is the second most consumed beverage after water, and the potential of tea tree biomass to absorb carbon during culti [...]

by Aart Heesterman

Received: 29 November 2021;  Published: 28 November 2022;  doi: 10.21926/aeer.2204046

Around 1600 AD the carbon dioxide content of the earth’s atmosphere started to rise, even whilst according to the Milankovitch [1] astronomical theory of climate variation it was due to fall. On the natural earth the carbon dioxide count of the atmosphere is a delayed response and an enhancing feedback on the basic cause of the Milankovitch astronomical cycle, the intensity of the June sunshine. If the Milankovitch cycle had continued its natural course, the medevial cold period known as the little ice age. Human i [...]

by Fiona Bénard

Received: 15 June 2022;  Published: 16 November 2022;  doi: 10.21926/aeer.2204045

In the context of resource depletion and global warming, the energy transition has become a necessity. To provide a basis for analysis and to support countries in this transition, it is necessary to better understand this transition. The creation of a good measurement tool could help. This paper proposes a measure of national resilience through an analogy to kinetic energy. Preliminary results show that some countries have strong potential for resilience in the energy transition. Inequalities exist and still exist [...]

by Ghulam Ali  and Jan Nisar

Received: 22 July 2022;  Published: 01 November 2022;  doi: 10.21926/aeer.2204044

Due to the massive increase in polymer manufacture, there has been a remarkable increase in plastic waste. With fewer landfills being used to dump plastic waste each year, it is becoming increasingly important to use effective recycling methods for plastic waste decomposition. In the present work, waste polystyrene was degraded in the presence of natural clay (K0.02, Ca0.15 [Mg0.25, Al0.69, Fe0.06], [Si2.0, Al0.6] O6.8 (O10) nH2O). The waste polymer was pyrolyzed at different heating rates i.e., 5, 10, 15 and 20°C [...]

by Moira M. Ijzerman  , Amir B. Bazrgar  , Andrew M. Gordon  and Naresh V. Thevathasan

Received: 08 September 2022;  Published: 25 October 2022;  doi: 10.21926/aeer.2204043

Carbon (C) storage potential was quantified for four tree species which are commonly incorporated into tree-based intercropping (TBI) systems and compared with conventional agricultural systems in southern Ontario, Canada. In the 31-year-old TBI system at the University of Guelph’s Agroforestry Research Station, Norway spruce (Picea abies), white cedar (Thuja occidentalis), black walnut (Juglans nigra) and red oak (Quercus rubra) were planted in tree rows, intercropped with soybean (Glycine max). In the conventiona [...]

by Shih-Ang Hsu

Received: 28 August 2022;  Published: 21 October 2022;  doi: 10.21926/aeer.2204042

In August 2021 Hurricane Ida devastated southeast Louisiana. On the basis of numerous pertinent meteorological-oceanographic (met-ocean) information including datasets and graphics as supplied by various public agencies, several unique topics related to marine meteorology and air-sea-land interactions are investigated. It is found that a newly proposed revised relation between minimum sea-level pressure and maximum sustained wind speed is verified during Ida. Characteristics of the rapid intensification, defined as [...]

by José Nieto  , Carmen Vasquez  , Rubén Acevedo  , Rodrigo Ramírez-Pisco  , Luís Manuel-Navas  , Mercedes Gaitan-Angulo  , Melva Inés Gómez-Caicedo  and Catalina Altamar-Cuervo

Received: 16 June 2022;  Published: 13 October 2022;  doi: 10.21926/aeer.2204041

Because of climate change, greenhouse gas (GHG) emissions have increased, leading to the implementation of energy transition policies. Countries have adopted the Paris Agreement to curb the effects of climate change. The emergence of COVID-19 in 2020 led to the application of different measures to stop its transmission. This study evaluated the effects of COVID-19-related restrictions (such as quarantine and mobility restriction) in Chile during the first wave on compliance with the country's energy transition poli [...]

by Vladimir N. Bashkin

Received: 05 September 2022;  Published: 13 October 2022;  doi: 10.21926/aeer.2204040

This research aims at one of the most important economic and environmental problems - the elimination of the consequences in case of emergency spills while cleaning petroleum products. The objectives of the study include the development and production of new biological products and biosorbents based on carbon-oxidizing microorganisms, testing the developed technologies for environmental risk management to eliminate the consequences of emergency petroleum product spills, creating an algorithm for conducting prelimin [...]