Oceanography and Atmospheric Sciences and Meteorology Commons^™

Considering Equity In Infrastructure Planning Processes And Outcomes For Coastal Resilience, Wie Yusuf, Marina Saitgalina, Tom Allen, Nicole S. Hutton, Jennifer L. Whytlaw, Joshua Behr

School of Public Service Faculty Publications

No abstract provided.

2023 October - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Monthly Reports

No abstract provided.

Lightning Forecast From Chaotic And Incomplete Time Series Using Wavelet De-Noising And Spatiotemporal Kriging, Jared K. Nystrom, Raymond Hill, Andrew J. Geyer, Joseph J. Pignatiello Jr., Eric Chicken

Faculty Publications

Purpose: Present a method to impute missing data from a chaotic time series, in this case lightning prediction data, and then use that completed dataset to create lightning prediction forecasts.

Design/Methodology/Approach: Using the technique of spatiotemporal kriging to estimate data that is autocorrelated but in space and time. Using the estimated data in an imputation methodology completes a dataset used in lighting prediction.

Findings: The techniques provided prove robust to the chaotic nature of the data, and the resulting time series displays evidence of smoothing while also preserving the signal of interest for lightning prediction.

Abstract © Emerald Publishing …

Design Of A Cooling System Integrated With Ultraviolet Light For Preservation Of Fruits And Vegetables At Variable Tropical Weather Conditions: A Case Study Of Arusha, Tanzania, John Pyuza Gunda, Alexander Pogrebnoi, Baraka Kichonge

Tanzania Journal of Science

Post-harvest losses of fruits and vegetables pose significant challenges, especially in tropical climates. This study introduces the development and performance evaluation of a solar-powered evaporative cooling storage system integrated with ultraviolet light (UV) designed for preservation of perishable fruits and vegetables. The cooling chamber supplied with ultraviolet lamp was developed using locally available materials such as sisal, sponge, and bricks. The performance of the system was evaluated in terms of air temperature decrease, relative humidity increase, and evaporative cooling power capacity both for sunny and cloudy tropical weather conditions. The study reveals that activating the UV light considerably extends the …

Wind Speed Forecasting Using Wavelet Analysis And Recurrent Artificial Neural Networks Based On Local Measurements In Singida Region, Tanzania, Rajabu J. Mangara, Mwingereza J. Kumwenda

Tanzania Journal of Science

High accuracy wind speed forecasting is essential for wind energy harvest and plays a significant role in wind farm management and grid integration. Wind speed is intermittent in nature, which makes the forecasting to be a big challenge. In the present study, three hybrid single-step wind speed forecasting techniques are proposed and tested by local measurement data in Singida region, Tanzania. The three techniques are based on Wavelet Analysis (WA), Back Propagation (BP) optimization algorithm, and Recurrent Neural Network (RNN). They are referred to as WA-RNN, BP-RNN, and WA-BP-RNN. The model results showed that WA-BP-RNN outperforms the other two proposed …

2023 September 28 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

On The Propagation Of Whistler-Mode Waves In The 2 Magnetic Ducts, Salman A. Nejad, Anatoly V. Streltsov

Publications

This paper studies extremely-low frequency (ELF) whistler-mode waves’ behavior within small-scale magnetic field irregularities in the Earth’s magnetosphere, known as magnetic ducts. Based on the magnetic fields’ magnitude inside and outside these ducts, they are categorized as high-magnetic ducts (HBD) and low-magnetic ducts (LBD). Using the whistler-mode dispersion relation analysis, our primary focus is to show that LBDs are prone to leak electromagnetic energy outside the duct. We further investigate the hypothesis that whistlers can propagate within LBDs without any signal loss when the width of the duct corresponds to an integer multiple of the perpendicular wavelengths of the waves …

A "Boreing" Night Of Observations Of The Upper Mesosphere And Lower Thermosphere Over The Andes Lidar Observatory, J. H. Hecht, Alan Liu, D. C. Fritts, R. L. Walterscheid, L. J. Gelinas, R. J. Rudy

Publications

A very high-spatial resolution (∼21-23 m pixel at 85 km altitude) OH airglow imager at the Andes Lidar Observatory at Cerro Pach´on, Chile observed considerable ducted wave activity on the night of October 29-30, 2016. This instrument was collocated with a Na wind-temperature lidar that provided data revealing the occurrence of strong ducts. A large field of view OH and greenline airglow imager showed waves present over a vertical extent consistent with the altitudes of the ducting features identified in the lidar profiles. While waves that appeared to be ducted were seen in all imagers throughout the observation interval, the …

2023 September 21 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

Research On Low-Carbon Transition Pathways And Suggestions For Climate Cooperation Of Bri Countries, Kaiwe Zhu, Xianchun Tan, Baihe Gu, Jianping Zhang, Lingsi Kong

Bulletin of Chinese Academy of Sciences (Chinese Version)

Climate cooperation among Belt and Road Initiative (BRI) countries holds significant practical importance for achieving low-carbon transition and sustainable development within the BRI framework. To analyze the pathway towards low-carbon transition under different representative concentration pathway (RCP) scenarios and emission quota allocation methods, the CGEM-BRI model was developed. The study also examined the potential requirements for climate finance, capacity building, and management system. Based on these findings, recommendations for climate cooperation between China and BRI countries were formulated. The study revealed that in order to limit global temperature rise for 1.5℃ in 2100, renewable energy sources should account for a …

Microplastics Distribution Within Western Arctic Seawater And Sea Ice, Alessandra D’Angelo, Nicole Trenholm, Brice Loose, Laura Glastra, Jacob Strock, Jongsun Kim

School of Earth, Environmental, & Marine Sciences Faculty Publications

Microplastic pollution has emerged as a global environmental concern, exhibiting wide distribution within marine ecosystems, including the Arctic Ocean. Limited Arctic microplastic data exist from beached plastics, seabed sediments, floating plastics, and sea ice. However, no studies have examined microplastics in the sea ice of the Canadian Arctic Archipelago and Tallurutiup Imanga National Marine Conservation Area, and few have explored Arctic marginal seas’ water column. The majority of the microplastic data originates from the Eurasian Arctic, with limited data available from other regions of the Arctic Ocean. This study presents data from two distinct campaigns in the Canadian Arctic Archipelago …

Climate Technology Demand Assessment For Participating Countries In Belt And Road Initiative And Policy Recommendations For Promoting South-South Technology Cooperation, Minpeng Chen, Qiang Liu, Meixun Gao, Fei Teng

Bulletin of Chinese Academy of Sciences (Chinese Version)

Belt and Road countries and regions have increasingly recognized the urgent need for climate mitigation and adaptation in order to achieve the Paris Agreement and the Sustainable Development Goals (SDGs). Transferring and disseminating climate technologies are effective ways in which developing countries in the region can enhance their capacity to address the challenges of climate change. This study assesses the characteristics of climate change technology needed in Belt and Road countries and regions, based on the United Nations Framework Convention on Climate Change's Technology Needs Assessment (TNA) report as well as the Cooperative Patent Classification (CPC) system. It identifies and …

Main Climate Change Characteristics And Disaster Risks Oriented Towards Carbon Neutrality Over The Belt And Road Regions, Jingyong Zhang, Jing He, Lixia Zhang, Zhencai Du, Renqiang Li, Ming Xu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Climate change has been widely recognized as one of most severe risks that the world faces. The recent 50 years are the warmest period in the last 2 000 years with respect to surface temperature averaged over the Belt and Road regions, which is mainly attributed to continuously increasing and accumulating of carbon emissions from human activities. Since the 1980s, over the Belt and Road regions mean climate change is characterized as surface warming at a faster rate, increased precipitation and evaporation, and accelerated sea level rise among others, and extreme weather and climate events such as hot extremes, rainstorms …

Experiences And Enlightenment Of International Cooperation On Climate Change For Bri Partners, Jianping Zhang, Xu Zhang

Bulletin of Chinese Academy of Sciences (Chinese Version)

The Belt and Road region has different resource endowments and diverse climates. Low-carbon and sustainable economic development is the objective need for the high-quality Green Silk Road, and it is also the key to the global actions and practices on climate change. China and BRI partners have carried out in-depth cooperation on low-carbon infrastructure, cleaner energy, climate disaster warning and forecasting, climate finance, low-carbon technology, and other key development fields in a win-win solution. Further, by drawing on the valuable experiences of developed countries in international cooperation on climate, the others have explored a new path for future international cooperation …

Climate Change Adaptation And Mitigation Strategies For Building A Green Silk Road, Tandong Yao, Jianping Huang, Baiqing Xu, Yanfen Wang, Xi Chen, Junguo Liu, Qingyun Duan, Guangjian Wu, Weicai Wang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Areas along the Belt and Road face not only natural process-related challenges such as frequent extreme weather events caused by abnormal climate warming, uneven distribution of water resources, but also management-related challenges such as extensive resource management, insufficient protection of ecology and biodiversity, and underutilization of carbon sink potential. To address these challenges and ensure a sustainable future, it is necessary to strengthen scientific and technological cooperation in response to climate change along the Silk Road, and to enhance the quality of the Green Silk Road construction. Key areas of scientific and technological cooperation should focus on water-ecological collaborative management …

Strategies And Measures Of International Climate Cooperation For The Belt And Road Regions, Yi Wang, Xianchun Tan, Jingyong Zhang, Renqiang Li, Minpeng Chen, Baihe Gu, Jianping Zhang

Bulletin of Chinese Academy of Sciences (Chinese Version)

Climate cooperation is conducive to promoting the Belt and Road Initiative (BRI) partner countries and regions to handle the relationship between economic development and tackling climate change, which is critical to achieving the green transformation of the regional economy. Based on the facts and projections of climate change in the BRI region, this study explored the demand gaps in technology, finance, and capacity building in the BRI region based on the impact of climate change on water resources, agriculture, and biodiversity. The study found that most countries and regions along the Belt and Road have a more urgent need for …

Approaches To Assessing Nutrient Coupling In Open Ocean Datasets, James M. Moore, Claire P. Till

IdeaFest: Interdisciplinary Journal of Creative Works and Research from Cal Poly Humboldt

Nutrient coupling describes a process where the biogeochemical cycles of two elements are linked by being incorporated similarly into biomass. This paper uses data from the GEOTRACES GP16 cruise (Eastern Pacific Zonal Transect) to investigate the relationship between certain macronutrients generally coupled to trace elements in terms of their oceanic distributions with the notable exception of in an oxygen minimum zone: cadmium-phosphate and zinc-silicate. There are many methods applied to oceanographic data to correlate analyte concentrations; while they are often presented independently in literature, here we attempt to use them in conjunction for a more thorough interpretation. By compiling 1) …

2023 September 14 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

Managing Fires And Ecosystems Indigenous Fire Ecologies Session_Greenhouse Gas Emissions From Wildland Fires Workshop, Cynthia Twyford Fowler

Faculty Scholarship

No abstract provided.

2023 September 7 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.