Sujith Ravi received a National Science Foundation (NSF) CAREER Award from the NSF/ENG/CBET Environmental Sustainability program. The Faculty Early Career Development (CAREER) is the US National Science Foundation’s most prestigious awards in support of early-career faculty who have the potential to serve as academic role models in research and education and to lead advances in the in their fields.
The Department of Earth and Environmental Science at Temple University seeks motivated students (Spring or Fall 2021) interested in pursuing PhD (Geosciences) for the following projects:
(1) Combined land use of solar energy and agriculture for socioeconomic and environmental co-benefits: The project seeks to design sustainable engineering solutions to lower the environmental and economic cost of renewable energy development by providing novel analysis methodologies and field data on solar energy – agriculture colocation approaches from multiple sites around the world. This interdisciplinary project will also explore the techno-economic feasibility of small scale off-grid systems in geographically isolated areas and the potential for improving rural livelihoods including rural electrification, employment generation, and electricity for processing agricultural products locally. The project will create research, educational and public outreach opportunities related to environmental sustainability by – training graduate students with novel tools and analysis, creating test sites for technology demonstrations of sustainable solutions, providing opportunities for public outreach, science communication and teaching (including international activities), and broadening participation of underrepresented groups.
Interested students please contact Sujith Ravi (firstname.lastname@example.org).
The student will be advised by Sujith Ravi (Temple University, PA https://sites.temple.edu/ravi/home/). Undergraduate/Master’s degree in geology, earth science or environmental/civil engineering is preferred. Experience or interest in quantitative data analysis, sensor networks, science education/outreach activities is preferred. The graduate students will be fully funded by research and teaching assistantships.
(2) Aeolian transport of microplastics: This project will investigate the effect of hydroclimatic variables and interparticle bonding forces on the wind-borne transport of microplastics from agricultural soils using a combination of laboratory experiments, and wind tunnel studies, and theoretical modeling.
Temple University is a comprehensive public research located in Philadelphia, PA. Temple University is a dynamic urban university with around 40,000 students and provides one of the nation’s most comprehensive and diverse learning environments. Temple is classified as an university with the “highest research activity” (R1) and is ranked by the National Science Foundation as among the top 100 universities in the country for research expenditures. More information about our department is available at http://www.temple.edu/geology/ . For more information contact Sujith Ravi, Assistant Professor, Department of Earth & Environmental Sciences, Temple University, Philadelphia, PA (email@example.com).
Berger, A., R. Valenca, Y. Miao, S. Ravi, and S. Mohanty (2019), Nitrate removal in biochar-augmented woodchip biofilters: Effect of rainfall extremes, Water Research, doi.org/10.1016/j.watres.2019.115008 [Elsevier, IF: 8.5]
Stormwater biofilters have been increasingly used to mitigate the impact of climate change on the export of contaminants including nitrate to water bodies. Yet, their performance is rarely tested under high-intensity rainfall events, which are predicted to occur more frequently under climate change scenarios. Overall, our results show that biochar could increase the resiliency of woodchip biofilters for denitrification in high-intensity rainfall events thereby mitigating the water quality degradation during climate change.
The goal of the visit was to formalize a long-term collaborative effort between the Department of Earth & Environmental Science at Temple University and Bogor Agricultural University (IPB) and Bandung Institute of Technology (ITB), two of Indonesia’s premier national agricultural and technological research universities.
This project will collect foundational field studies of micro-solar and agricultural colocation, specifically in the context of remote, off-grid locations, and developing countries.
Wang G, J. Li , and S. Ravi (2019), A combined grazing and fire management may reverse woody shrub encroachment in desert grasslands, Landscape Ecology, doi.org/10.1007/s10980-019-00873-0 [Springer, IF: 4.5]
Fire and controlled grazing have been widely adopted as management interventions to counteract woody shrub proliferation in many arid and semiarid grassland systems. The actual intensity of grazing and fire, along with the timing of the interventions, however, are difficult to determine in practice. This study aims to establish model simulations to access the long-term landscape changes under different land management scenarios. We developed a cellular automata model to evaluate landscape dynamics in response to scenarios of grazing, fire, time of intervention, and initial coverage of grasses and shrubs.
Ravi. S., H. Gonzales*, I. Buynevich, J. Li, J. Sankey, D. Dukes* and G. Wang (2019), On the development of a magnetic susceptibility-based tracer for sediment transport research, Earth Surface Processes & Landforms, doi.org/10.1002/esp.4536 [Wiley, IF: 3.75]
A novel metal tracer‐based methodology for estimating aeolian sediment redistribution, using spatio‐temporal measurements of low‐field magnetic susceptibility (MS). This experiment represents the first step toward the development of a cost‐effective and non‐destructive tracer‐based approach to estimate the transport and redistribution of sediment by aeolian processes.
Bill Burger (MS) was awarded the NSF LTER summer fellowship form the Sevilleta LTER (NM) for his project on biophysical impacts of prescribed fires and their implications on grassland restoration.
Wang et al. (2018) in Ecosystems show that prescribed fire facilitates the remobilization of nutrient-enriched soil from shrub microsites to grass and bare microsites and thereby reduces the spatial heterogeneity of soil resources in a grassland encroached by shrubs in the Chihuahuan desert.
Wang*., G., J. Li, S. Ravi, D. Dukes*, H. Gonzales*, and J. Sankey (2018), Post-fire redistribution of soil carbon and nitrogen at a grassland-shrubland ecotone, Ecosystems, https://doi.org/10.1007/s10021-018-0260-2 [Springer, IF: 4.2]