[PDF][PDF] Energetics of the core

F Nimmo - Treatise on geophysics, 2007 - es.ucsc.edu
… at 12±5 TW; heat flows less than 5 TW are insufficient to drive the current dynamo. Prior to
formation of the inner core, sustaining a dynamo required a CMB heat flow of 15 TW or more, …

Admittance estimates of mean crustal thickness and density at the Martian hemispheric dichotomy

F Nimmo - Journal of Geophysical Research: Planets, 2002 - Wiley Online Library
Admittance estimates from line‐of‐sight (LOS) acceleration profiles of the Mars Global
Surveyor spacecraft are used to constrain the mean crustal thickness and surface density …

Early crustal evolution of Mars

F Nimmo, K Tanaka - Annu. Rev. Earth Planet. Sci., 2005 - annualreviews.org
▪ Abstract The bulk of the ∼50-km-thick Martian crust formed at ∼4.5 Gyr BP, perhaps from
a magma ocean. This crust is probably a basaltic andesite or andesite and is enriched in …

The processes of preferential flow in the unsaturated zone

JR Nimmo - Soil Science Society of America Journal, 2021 - Wiley Online Library
The processes of preferential flow in the unsaturated zone - Nimmo - 2021 - Soil Science …
Nimmo et al. (2002) inferred the existence of flowpaths as long as 1 km, based on tracer …

Geophysical implications of the long‐wavelength topography of the Saturnian satellites

F Nimmo, BG Bills, PC Thomas - Journal of Geophysical …, 2011 - Wiley Online Library
We use limb profiles to quantify the long‐wavelength topography of the Saturnian satellites.
The degree 2 shapes of Mimas, Enceladus, and Tethys are not consistent with hydrostatic …

The influence of potassium on core and geodynamo evolution

F Nimmo, GD Price, J Brodholt… - Geophysical Journal …, 2004 - academic.oup.com
… This total heat flux exceeds that carried by the adiabat, 6.2 TW, so that the outer core is … ,
there appears to be general agreement that 2–5 TW of heat production in the core makes it far …

[PDF][PDF] Measuring traffic manipulation on twitter

B Nimmo - University of Oxford Internet Institute, 2019 - demtech.oii.ox.ac.uk
Twitter is a major platform for political communication and campaigning, used extensively
by political parties, lobbying groups, and activists in many democratic debates around the …

Tidally modulated eruptions on Enceladus: Cassini ISS observations and models

F Nimmo, C Porco, C Mitchell - The Astronomical Journal, 2014 - iopscience.iop.org
… value of l 2 (eg, the 0.04 value used by Nimmo et al. 2007) results in a slightly smaller apparent
… As the predicted obliquity of Enceladus is very small (Chen & Nimmo 2011), we ignored …

Constraining the crustal thickness on Mercury from viscous topographic relaxation

F Nimmo - Geophysical research letters, 2002 - Wiley Online Library
Mercury exhibits long‐wavelength topography which has probably survived for ∼4 Ga.
Assuming Airy compensation, the survival of the topography indicates that only certain …

Viscous relaxation as a probe of heat flux and crustal plateau composition on Venus

F Nimmo, S Mackwell - Proceedings of the National …, 2023 - National Acad Sciences
… The Earth’s radiogenic heat production rate is estimated at 21.5 ± 3 TW (41), which is about
half its heat loss rate of 47 TW (91 mW m − 2 ) (42). Plate tectonics is apparently allowing the …