Gabriela Shirkey

Mapping Wildfire Burn Scars with NASA EMIT Hyperspectral Data: A WISER-Based Remote Sensing Lab

Gabriela Shirkey, Claire Villanueva-Weeks, Gabriella Dauber

This remote sensing lab activity utilizes NASA's EMIT hyperspectral imagery and the WISER visualization software to map wildfire burn scars. Students calculate the Normalized Burn Ratio (NBR) index, visualize burn severity, and analyze spectral reflectance plots to compare pre- and post-fire vegetation …

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Effects of Enhanced Rock Weathering (ERW) on primary productivity and evapotranspiration rates estimated via satellite remote sensing

Gregory R. Goldsmith, Elliot Chang, Mona Patterson, Joshua Fisher et autres

Enhanced Rock Weathering (ERW) holds significant potential to achieve substantial, durable carbon storage at a global scale. As ERW continues to grow as a commercially deployed carbon dioxide removal technology, there is a critical need to identify and quantitatively assess its effects …

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Biodiversity from the International Space Station: multiple lenses advance species richness monitoring

Gabriela Shirkey

Supporting data and code for "Biodiversity from the International Space Station: multiple lenses advance species richness monitoring".

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Unraveling Crop Nitrogen-Water Dynamics with Hyperspectral-Thermal Sensing in Northern Central Valley, California

Shahryar Fazli, Surendra Maharjan, Wenzhao Li, Joshua B. Fisher et autres

Abstract Ensuring global food security in the face of climate change requires optimizing crop water use and nutrient management. This study investigates the relationship between canopy nitrogen (N) and evapotranspiration (ET) across sunflower, rice, walnut, alfalfa, and plum crops using advanced remote …

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Identifying opportunities for nature-based solutions with geospatialized life cycle assessments and fine-scale socioecological data

Gabriela Shirkey, Annick Anctil, Ranjeet John, Venkatesh Kolluru et autres

Abstract As we increasingly understand the impact that land management intensification has on local and global climate, the call for nature-based solutions (NbS) in agroecosystems has expanded. Moreover, the pressing need to determine when and where NbS should be used raises challenges …

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Impacts of an urban density gradient on land-atmosphere turbulent heat fluxes across seasonal timescales

David E. Reed, Cheyenne Lei, William Baule, Gabriela Shirkey et autres

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Albedo of crops as a nature-based climate solution to global warming

Cheyenne Lei, Jiquan Chen, Inés Ibáñez, Pietro Sciusco et autres

Abstract Surface albedo can affect the energy budget and subsequently cause localized warming or cooling of the climate. When we convert a substantial portion of lands to agriculture, land surface properties are consequently altered, including albedo. Through crop selection and management, one …

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Charting the Future of the FLUXNET Network

Kyle Delwiche, Jacob A. Nelson, Natalia Kowalska, Caitlin E. Moore et autres

[Extract] FLUXNET is a global network of micrometeorological tower sites that employ eddy covariance (EC) methods to measure the exchanges of greenhouse gases, water vapor, and energy between terrestrial and aquatic ecosystems and the atmosphere. FLUXNET has played a critical role in …

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Techno-economic and life cycle assessment of agrivoltaic system (AVS) designs

Achyuth Ravilla, Gabriela Shirkey, Jiquan Chen, Meghann Jarchow et autres

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Land cover change and socioecological influences on terrestrial carbon production in an agroecosystem

Gabriela Shirkey, Ranjeet John, Jiquan Chen, Venkatesh Kolluru et autres

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Photovoltaic Systems through the Lens of Material-Energy-Water Nexus

Megan Belongeay, Gabriela Shirkey, Marina Monteiro Lunardi, Gonzalo Rodriguez-García et autres

Solar photovoltaics (PV) has emerged as one of the world’s most promising power-generation technologies, and it is essential to assess its applications from the perspective of a material-energy-water (MEW) nexus. We performed a life cycle assessment of the cradle-to-grave MEW for single-crystalline …

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Fine resolution remote sensing spectra improves estimates of gross primary production of croplands

Gabriela Shirkey, Ranjeet John, Jiquan Chen, Kyla M. Dahlin et autres

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