Browsing by Title
Now showing items 54788-54807 of 142676
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Geomorphic controls on elevational gradients of species richness
(National Academy of Sciences (U.S.), 2016-02)Elevational gradients of biodiversity have been widely investigated, and yet a clear interpretation of the biotic and abiotic factors that determine how species richness varies with elevation is still elusive. In mountainous ... -
Geomorphology and ecohydrology of water-limited ecosystems : a modeling approach
(Massachusetts Institute of Technology, 2006)The role of vegetation in shaping landforms and how these landforms respond to disturbances are the subjects of this work. A numerical model is developed to help develop a mechanistic understanding of the hydrological, ... -
Geomorphology of Lagrangian ridges
(Wiley, 2022-06) -
GeoPak : monitoring climbers and climate on Mount Everest
(Massachusetts Institute of Technology, 1999)This thesis tells the tale of the geoPak, a device designed to collect and transmit information about its position and surrounding environment. It uses the Global Positioning System (GPS) and low power sensors to collect ... -
Geophysical and geochemical constraints on submarine volcanic processes
(Massachusetts Institute of Technology, 2019)Submarine volcanic systems form new oceanic crust, host unique chemosynthetic ecosystems, concentrate rare metals, and provide a conduit for chemical transfer from the Earth's interior to hydrosphere. Although our understanding ... -
Geophysical and geochemical constraints on the evolution of oceanic lithosphere from formation to subduction
(Massachusetts Institute of Technology, 2017)This thesis investigates the evolution of the oceanic lithosphere in a broad sense from formation to subduction, in a focused case at the ridge, and in a focused case proximal to subduction. In general, alteration of the ... -
A geophysical and geological investigation of extensional structures, Great Basin, Western United States
(Massachusetts Institute of Technology, 1988) -
Geophysical and petrological constraints on ocean plate dynamics
(Massachusetts Institute of Technology, 2017)This thesis investigates the formation and subsequent motion of oceanic lithospheric plates through geophysical and petrological methods. Ocean crust and lithosphere forms at mid-ocean ridges as the underlying asthenosphere ... -
Geophysical characterization of the effects of fractures and stress on subsurface reservoirs
(Massachusetts Institute of Technology, 2013)We study the effect of fractures on reservoir characterization and subsurface rock property measurements using seismic data. Based on the scale of a fracture relative to seismic wavelength, we divide the dissertation into ... -
Geophysical evolution of planetary interiors and surfaces : Moon & Mars
(Massachusetts Institute of Technology, 2013)The interiors and surfaces of the terrestrial planetary bodies provide us a unique opportunity to gain insight into planetary evolution, particularly in the early stages subsequent to accretion. Both Mars and the Moon are ... -
Geophysical imaging methods for analysis of the Krafla Geothermal Field, NE Iceland
(Massachusetts Institute of Technology, 2012)Joint geophysical imaging techniques have the potential to be reliable methods for characterizing geothermal sites and reservoirs while reducing drilling and production risks. In this study, we applied a finite difference ... -
Geophysical insights into the histories of Venus, Mercury and the Moon
(Massachusetts Institute of Technology, 2014)Gravity and topography data provide a powerful tool for studying the interiors of rocky planetary bodies. In this thesis I study three such bodies - Venus, Mercury and the Moon - and I use the gravity and topography data ... -
Geophysical investigation of Vesta, Ceres and the Moon using gravity and topography data
(Massachusetts Institute of Technology, 2017)The shape and gravity field are fundamental properties of a planetary body. Combining gravity and topography data sets is, arguably, the most powerful tool to study planetary interiors from orbit. However, even when gravity ... -
Geophysical limitations on the erosion history within Arabia Terra
(American Geophysical Union (AGU), 2010-05)The Arabia Terra region, an area of ~1 × 10[superscript 7] km[superscript 2] lying south of the hemispheric dichotomy boundary and centered at (25E, 5N), is a unique physiographic province with topography and crustal ... -
Geophysical map representation, abstraction and interrogation for autonomous underwater vehicle navigation
(Massachusetts Institute of Technology, 1994) -
Geophysical Monitoring of Multiple Phase Saturation of Rocks: Application to CO[subscript 2] Sequestration
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2011)4-D seismic techniques rely on measuring changes in velocity over time in order to detect changes during activities such as CO[subscript 2] flooding and storage in a reservoir. Wang et al. [1998] detail a laboratory study ... -
Geophysical parameter estimation with a passive microwave spectrometer at 54 / 118 / 183 / 425 GHz
(Massachusetts Institute of Technology, 2004)(cont.) model of a convective cell is presented that provides a physical basis for this relationship. -
Geophysical Research
(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1966-04-15) -
Geophysical Research
(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1968-04-15) -
Geophysical Research
(Research Laboratory of Electronics (RLE) at the Massachusetts Institute of Technology (MIT), 1966-01-15)
