Browsing Earth, Atmospheric, and Planetary Sciences - Bachelor's degree by Title
Now showing items 106-125 of 202
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A machine learning model of Manhattan air pollution at high spatial resolution
(Massachusetts Institute of Technology, 2014)A machine-learning model was created to predict air pollution at high spatial resolution in Manhattan, New York using taxi trip data. Urban air pollution increases morbidity and mortality through respiratory and cardiovascular ... -
A machine-learning approach to aerosol classification for single-particle mass spectrometry
(Massachusetts Institute of Technology, 2017)Compositional analysis of atmospheric and laboratory aerosols is often conducted via single-particle mass spectrometry (SPMS), an in situ and real-time analytical technique that produces mass spectra on a single particle ... -
Magmatic processes that generated the rim andesites of Medicine Lake Volcano, N. California
(Massachusetts Institute of Technology, 2012)This paper characterizes the compositionally distinctive high-Na andesite lavas at Medicine Lake Volcano that erupted at ~100 ka and that built most of Medicine Lake's caldera. These high-Na lavas define a compositional ... -
Mantle thermal evolution of tidally-locked super-earths
(Massachusetts Institute of Technology, 2009)Most super-Earth (mass < 10M[mathematical symbol]) detection techniques are biased towards massive planets with close-in orbits. A planet's orbital decay timescale decreases with a lower semi-major axis, thereby providing ... -
Measuring channel mobility through the analysis of area-based change in analog experiments, with insights into alluvial environments
(Massachusetts Institute of Technology, 2008)We quantify the mobility of alluvial river channels in order to better understand the relationship between channel mobility and fluvial environment. We analyze five analog experiments, performed between 2002 and 2007 at ... -
Measuring transit timing variations of exoplanets using small telescopes
(Massachusetts Institute of Technology, 2010)Transits of exoplanets were observed from June 2009 through January 2010. Six transit light curves are presented in this paper for three planets: WASP-10b, WASP- 11/HAT-P-10b, and TrES-3. Measurements of the planetary ... -
Mechanisms governing avulsions in transient landscapes : analysis of the May 2006 Suncook River avulsion in Epsom, New Hampshire
(Massachusetts Institute of Technology, 2007)Avulsions, or rapid changes in the location of a river, usually occur in environments such as deltas, floodplains, and alluvial fans where net-deposition can raise the bed of the river above its floodplain. Avulsions are ... -
The Mercurian magma ocean, first crust, and implications for planetary formation mechanisms
(Massachusetts Institute of Technology, 2010)The size of the Mercurian core and the low ferrous iron bearing silicate content of its crust offer constraints on formation models for the planet. Here we consider a bulk composition that allows endogenous formation of ... -
Mercury emissions inventories in the Lake Superior states
(Massachusetts Institute of Technology, 2016)Mercury pollution can cause harmful impacts on human health and the environment, a concern that is magnified in marine environments like the Great Lakes. While there are many local, national, and global efforts to track ... -
Methane and carbon dioxide cycling in soils of the Harvard Forest
(Massachusetts Institute of Technology, 2018)Soil is Earth's largest terrestrial carbon pool (Oertel et al., 2016) and can act as a net source of greenhouse gases (GHG). However, if organic material accumulates in soils faster than it is converted to CO2 by cellular ... -
A method for atmospheric hydrocarbon determination.
(Massachusetts Institute of Technology, 1966) -
A method for synthesizing sedimentary structures generated by migrating bedforms
(Massachusetts Institute of Technology, 1978) -
Methods for the study of virus adsorption to metal oxide in order to improve ceramic water filters
(Massachusetts Institute of Technology, 2006)As of 2002, 1.1 billion people lacked access to clean water, causing several million deahts each year from highly-infectious enteric diseases. It has been recognized that an appropriate way of addressing this problem may ... -
Microstructural study of two-phase marbles in simple shear
(Massachusetts Institute of Technology, 2009)Microstructural and textural observations have been conducted on synthetic calcite with 20 wt% quartz deformed in simple shear using transmission electron microscopy and selected-area diffraction. The marbles were deformed ... -
Modeling methylmercury in Maine's tribal meres
(Massachusetts Institute of Technology, 2018)Methylmercury (MeHg) concentrations in the fish of twenty Maine lakes were projected for the year 2035 under three different policy scenarios. A mechanistic model of Hg fate and transport was calibrated for Maine's environment ... -
Modeling sea surface height in the Gulf of Mexico
(Massachusetts Institute of Technology, 2008)A model was created to form synthetic plots of sea surface height (SSH) from monthly SSH statistics in the Gulf of Mexico generated from satellite laser altimetry data. SSH is a signal of the upper ocean mixed layer heat ... -
Modeling the sorting of sediments on delta tops
(Massachusetts Institute of Technology, 2009)Sediment sorting in fluvial rivers produces great variation in the grain-size of deposit over the length of a river. Knowledge of the pattern of sediment deposition may help to shed light on the processes that sort by grain ... -
Molecular toxicity of lead
(Massachusetts Institute of Technology, 2008) -
National technological and military prestige heavily influenced the development of early United States space policy
(Massachusetts Institute of Technology, 2002)The purpose of this thesis is to discuss the relationship between U.S. space policy and: 1) national technological prestige 2) military superiority 3) and ultimately the political competition between the United States and ... -
Natural variability in eastern tropical Pacific nitrous oxide emissions
(Massachusetts Institute of Technology, 2018)Nitrous oxide (N2O) is a powerful greenhouse gas and ozone depleting substance, but its natural sources remain poorly constrained. Marine emissions are likely much higher than IPCC estimates predict, due to unusually high ...
