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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 ...
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 ...
Stable isotope probing of hyperthermophilic filamentous microbial communities in Octopus Spring, Yellowstone National Park
(Massachusetts Institute of Technology, 2007)
Stabe isotope probe (SIP) incubation studies were performed using ¹³C-labeled carbon substrates on hyperthermophilic filamentous streamer communities inhabiting Octopus Spring in Yellowstone National Park. Biomass was ...
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 ...
Elemental and reactive gaseous mercury deposition and diurnal cycles over terrestrial environments
(Massachusetts Institute of Technology, 2011)
The atmospheric component of the global biogeochemical mercury cycle was studied to determine the mechanisms behind diurnal trends and amplitudes in elemental and reactive gaseous mercury concentrations over terrestrial ...
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 ...
Local and expert knowledge in experienced mining communities : the case of a proposed uranium mine in Crownpoint
(Massachusetts Institute of Technology, 2007)
Public access to science is an essential environmental justice component of any mining development. Both limited public access to professional scientific knowledge and little acknowledgment by professionals of the contributions ...
The role of eddies in buoyancy flux
(Massachusetts Institute of Technology, 2001)
This thesis explores the role of eddies in determining the stratification of the ocean through a laboratory experiment. The experiment uses a dual-tank apparatus, with a smaller tank sitting inside the larger tank. Both ...
A coupled atmosphere-ocean model of thermohaline circulation, including wind-driven gyre circulation with an analytical solution
(Massachusetts Institute of Technology, 2006)
A parameter representing circulation due to wind forcing is added to the thermohaline circulation model of Marotzke (1996). The model consists of four boxes and is governed by a system of two differential equations governing ...
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 ...