Browsing Earth, Atmospheric, and Planetary Sciences - Bachelor's degree by Title
Now showing items 122-141 of 197
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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 ... -
A near-ultraviolet spectroscopic survey of B-type asteroids
(Massachusetts Institute of Technology, 2015)This study aimed to evaluate the presence of spectral slope variations of B-type asteroids in the near-ultraviolet wavelength range and further compare variations to those found in the near-infrared (de Leon et al., 2012) ... -
The Newburyport Mines of silver and lead
(Massachusetts Institute of Technology, 1876) -
A numerical method for calculating occultation light curves from an arbitrary atmospheric model
(Massachusetts Institute of Technology, 1996) -
Observations from working with a simple mathematical model of light absorption by small particles in the ocean
(Massachusetts Institute of Technology, 2008)In order to investigate the possibility of using oceanic visual spectrum data (i.e., ocean color) to differentiate between phytoplankton cell types, a simple mathematical model of light absorption was constructed in MATLAB, ... -
On the origins of currents on the southeastern Great Bahama Bank.
(Massachusetts Institute of Technology, 1966) -
Optical analysis of the Wallace Astrophysical Observatory 24-inch and Magellan I 6.5-meter telescopes
(Massachusetts Institute of Technology, 2000)The goal of this thesis is to propose a layout for the Wallace Astrophysical Observatory (WAO) 24-inch optical system that would utilize the full potential of the telescope and a new CCD imaging instrument. An optical ... -
An overview of the volcano-tectonic hazards of Portland, Oregon, and an assessment of emergency preparedness
(Massachusetts Institute of Technology, 2011)Portland, Oregon, lies within an active tectonic margin, which puts the city at risk to hazards from earthquakes and volcanic eruptions. The young Juan de Fuca microplate is subducting under North America, introducing not ... -
Oxygen isotope systematics of nitrification
(Massachusetts Institute of Technology, 2007)During nitrification there is an exchange of oxygen atoms between water and nitrite, causing the [delta]¹⁸O of nitrate produced by nitrification to be closer to the [delta]¹⁸O of water than expected. A series of lab and ... -
Ozone chemistry during global glaciations : a possible climate feedback
(Massachusetts Institute of Technology, 2006)A theory for changes in ozone chemistry during late Proterozoic global glaciations is developed. The possible significance of temperature, humidity, nitrogen oxides, reactive chlorine, lightning frequency, surface deposition ... -
A paleomagnetic study of the angrite Sahara 99555
(Massachusetts Institute of Technology, 2009)Sahara 99555 (SAH 99555) is the oldest dated angrite sample, a rare type of meteorite, and is only ~2 Myr younger than the age of the solar system (1, 2). SAH 99555 shows no post-cooling brecciation or weathering from the ... -
Paleomagnetism conglomerate test on Archean conglomerate rock from Jack Hills, Australia
(Massachusetts Institute of Technology, 2011)A paleomagnetism study known as a conglomerate test was run on an Archean sandstone conglomerate rock to determine if the sample contained a remnant magnetization from the time of its formation. Twenty-nine clasts from a ... -
Paleomagnetism of Lonar impact glass
(Massachusetts Institute of Technology, 2008)Several dozen impact glasses from Lonar Crater, in Maharashtra, India, were analyzed for evidence of impact-generated paleofields, and possible motional remanent magnetization. Lonar Crater formed when a meteorite impacted ... -
Permeability modifying processes : thermal cracking and crack healing of geomaterials
(Massachusetts Institute of Technology, 2005)We explored two complementary mechanisms for change in porosity and permeability of geomaterials: thermal cracking and crack healing by diagenesis. A suite of thermal cracking experiments was performed on andesite plugs ... -
Photometric and spectral analysis of the distribution of crystalline and amorphous ices on Enceladus as seen by Cassini
(Massachusetts Institute of Technology, 2006)Photometric and Spectral analysis of data from the Cassini Visual and Infrared Mapping Spectrometer (VIMS) has yielded intriguing findings regarding the properties and composition of the surface of Saturn's satellite ... -
Pluto's atmosphere from the May 22, 2011 stellar occultation
(Massachusetts Institute of Technology, 2012)This paper reports the observations and atmospheric fitting results from the May 22, 2011 stellar occultation by Pluto. Of the nine sites across the United States that attempted to observe the event, three obtained light ... -
Pre-eruptive conditions beneath Medicine Lake Volcano, California, during the Pleistocene epoch
(Massachusetts Institute of Technology, 2000)This investigation uses the variations in composition of lavas and mineralogical evidence to characterize the preeruptive conditions beneath Medicine Lake Volcano (MLV) during the Pleistocene epoch. Prior to this investigation, ... -
Precursors to atmospheric blocking events
(Massachusetts Institute of Technology, 2008)Atmospheric blocking disturbs synoptic-scale features from their normal eastward progression, causing extreme weather conditions for the duration of the blocking event. Blocking precursors, as indicators of meridional flow ... -
Predicted and observed free-air gravity anomalies for delamination models of the formation of the Siberian Flood Basalts
(Massachusetts Institute of Technology, 2007)The mechanism responsible for the formation of the Siberian Flood Basalts (SFB) has yet to be discovered and adequately quantified. One theory proposes that thinning of the lithosphere due to delamination triggered the ...
