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Studying the atmosphere of HD 189733 b using the Rossiter-McLaughlin effect
(Massachusetts Institute of Technology, 2020)
Transmission spectroscopy is a widely-used method for studying exoplanetary atmospheres. However, the differential data analysis techniques that are generally applied to high-resolution ground-based spectroscopic data are ...
Characterization of solar X-ray response data from the REXIS instrument
(Massachusetts Institute of Technology, 2020)
The REgolith X-ray Imaging Spectrometer (REXIS) is a student-built instrument that was flown on NASA's Origins, Spectral Interpretation, Resource Identification, Safety, Regolith Explorer (OSIRIS-REx) mission. During the ...
Tufa-based reconstructions of Huasco Basin Lake levels
(Massachusetts Institute of Technology, 2020)
This thesis investigates the Salar del Huasco (northern Chile) as a potential site for palaeohydrological reconstructions of precipitation over the South American Altiplano, and presents a preliminary lake level chronology ...
Using machine learning, particle tracking, and grain shape modeling to characterize bedƯload sediment transport
(Massachusetts Institute of Technology, 2020)
Rivers are generally understood through their bulk characteristics and on a river by river scale, while the motion and characteristics of the individual sediment that progresses through those rivers is poorly understood. ...
Relationship Between West African monsoon precipitation characteristics and maize yields across Sub-Saharan West Africa
(Massachusetts Institute of Technology, 2020)
Sub-Saharan Africa faces significant challenges to its food security in the coming decades as climate change and rapid population growth strains its agricultural systems. In a region where crops are near exclusively rainfed, ...
Exploring the silicification of microbes and understanding their role in the fossil record
(Massachusetts Institute of Technology, 2020)
Filamentous cyanobacteria that built macroscopic tufted mats in Proterozoic peritidal environments were fossilized by silicification, but the environmental and biological factors that shaped these structures and enabled ...