i
Controls on Eolian Landscape Evolution in Fractured Bedrock
-
2019
Source: Geophysical Research Letters, 46, 12012-12020.
Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
Details:
-
Journal Title:Geophysical Research Letters
-
Personal Author:
-
NOAA Program & Office:
-
Description:Wind abrasion is important for planetary landscape evolution, and wind‐abraded bedrock landscapes contain many landforms that are difficult to interpret. Here we exploit a natural experiment in Chile where topographic shielding by an upwind lava flow yields diverse erosional landforms in a downwind ignimbrite. Using a 3‐D topographic wind model, we find that low velocities in the wake of a lava lobe coincide with a transition from landforms reflecting fracture‐parallel erosion to flow‐parallel erosion. Erosion rates across these landforms vary with shear velocity and abrasion susceptibility of the windward escarpment. We hypothesize that this morphologic threshold is controlled by whether particles can be lofted in suspension and overcome topographic steering imposed by fractured bedrock blocks. Within a phase space set by Rouse and Stokes numbers, our data illustrate that wind‐abraded landforms reflect a competition between the material skeleton of the landscape and the strength of the flow that shapes it.
-
Source:Geophysical Research Letters, 46, 12012-12020.
-
Document Type:
-
Rights Information:Other
-
Compliance:Submitted
-
Main Document Checksum:urn:sha256:9897f9b331bb3937e0e6112ee9406650b7efb2e0a8629528c328a9eeb8a709a8
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
Fostering multidisciplinary research on interactions between chemistry, biology, and physics within the coupled cryosphere-atmosphere systemCitePersonal Author:Thomas, J.L. ; Stutz, J. ; ...2019 | Elem Sci Anth, 7(1), p.58.Description:The cryosphere, which comprises a large portion of Earth’s surface, is rapidly changing as a consequence of global climate change. Ice, snow, and fr...Yield Estimates for the Six North Korean Nuclear Tests From Teleseismic P Wave Modeling and Intercorrelation of P and Pn RecordingsCitePersonal Author:Voytan, Dimitri P. ; Lay, Thorne ; ...2019 | JGR Solid Earth (2019). 124(5): 4916-4939Description:The yields of the six declared underground nuclear tests at the North Korean test site are estimated using high‐frequency teleseismic P wave amplitu...Revisiting Snow Cover Variability and Canopy Structure Within Forest Stands: Insights From Airborne Lidar DataCitePersonal Author:Mazzotti, Giulia ; Currier, William Ryan ; ...2019 | Water Resources Research, 55(7): 6198–6216Description:The retrieval of detailed, co‐located snow depth and canopy cover information from airborne lidar has advanced our understanding of links between fo...Personal Author:Piedrahita, Ricardo ; Coffey, Evan R. ; ...2019 | Atmosphere 2019, 10(7), 395Description:Biomass burning for home energy use contributes to negative health outcomes and environmental degradation. As part of the REACCTING study (Research on...Active Deformation Near the Rio Grande Rift and Colorado Plateau as Inferred from Continuous Global Positioning System MeasurementsCitePersonal Author:Murray, K.D. ; Murray, M.H. ; ...2019 | JGR Solid Earth (2019). 124(2): 2166-2183Description:We used data from 333 continuous Global Positioning System stations, including 26 stations installed in 2006–2007 as part of a collaborative EarthSc...Slow Slip Event On the Southern San Andreas Fault Triggered by the 2017 M(w)8.2 Chiapas (Mexico) EarthquakeCitePersonal Author:Tymofyeyeva, Ekaterina ; Fialko, Yuri ; ...2019 | JGR Solid Earth (2019). 124(9): 9956-9975Description:Observations of shallow fault creep reveal increasingly complex time‐dependent slip histories that include quasi‐steady creep and triggered as wel...Investigation of Solar Proton Access Into the Inner Magnetosphere on 11 September 2017CitePersonal Author:Qin, M. R. ; Hudson, M. ; ...2019 | Journal of Geophysical Research: Space Physics,;Description:In this study, access of solar energetic protons to the inner magnetosphere on 11 September 2017 is investigated by computing the reverse particle tra...Personal Author:Piedrahita, Ricardo ; Coffey, Evan R. ; ...2019 | Atmosphere 2019, 10(7), 402Description:Biomass burning for home energy use is a major environmental health concern. Improved cooking technologies could generate environmental health benefit...Personal Author:Meier, Walter N. ; Stewart, J. Scott ;2019 | Enviro.Res.Letts. (2019) 14(3): 035005Description:The uncertainties in sea ice extent (total area covered by sea ice with concentration >15%) derived from passive microwave sensors are assessed in two...Tropical Pacific SST and ITCZ Biases in Climate Models: Double Trouble for Future Rainfall Projections?CitePersonal Author:Samanta, Dhrubajyoti ; Karnauskas, Kristopher B. ; ...2019 | Geophysical Research Letters, 46, 2242-2252.Description:The double Intertropical Convergence Zone bias remains a persistent problem in coupled general circulation model simulations. Due to the strong sea su...Personal Author:Robel, Alexander A. ; Banwell, Alison F. ;2019 | Geophysical Research Letters, 46, 12092-12100.Description:Increasing surface melt has been implicated in the collapse of several Antarctic ice shelves over the last few decades, including the collapse of Lars...Inference of the impact of wildfire on permafrost and active layer thickness in a discontinuous permafrost region using the remotely sensed active layer thickness (ReSALT) algorithmCitePersonal Author:Michaelides, Roger J. ; Schaefer, Kevin ; ...2019 | Enviro.Res.Letts. (2019) 14(3)Description:The Yukon–Kuskokwim (YK) Delta is a region of discontinuous permafrost in the subarctic of southwestern Alaska. Many wildfires have occurred in the ...Improving Forecast Accuracy With Tsunami Data Assimilation: The 2009 Dusky Sound, New Zealand, TsunamiCitePersonal Author:Sheehan, Anne F. ; Gusman, Aditya R. ; ...2019 | JGR Solid Earth (2019). 124(1): 566-577Description:We use tsunami waveforms recorded on deep water absolute pressure gauges (Deep‐ocean Assessment and Reporting of Tsunamis), coastal tide gauges, and...Temperature- and Humidity-Dependent Phase States of Secondary Organic AerosolsCitePersonal Author:Petters, Sarah S. ; Kreidenweis, Sonia M. ; ...2019 | Geophysical Research Letters, 46, 1005-1013.Description:Viscosity of monoterpene‐derived secondary organic aerosols (SOAs) as a function of temperature and relative humidity (RH), and dry SOA glass transi...Personal Author:Wang, Y. ; Maeda, T. ; ...2019 | Geophysical Research Letters, 46, 2045-2053.Description:The tsunami data assimilation method enables tsunami forecasting directly from observations, without the need of estimating tsunami sources. However, ...Offset Channels May Not Accurately Record Strike-Slip Fault Displacement: Evidence From Landscape Evolution ModelsCitePersonal Author:Reitman, Nadine G. ; Mueller, Karl J. ; ...2019 | JGR Solid Earth (2019). 124(12): 13427-13451Description:Slip distribution, slip rate, and slip per event for strike‐slip faults are commonly determined by correlating offset stream channels—under the as...Monthly Variability in Bering Strait Oceanic Volume and Heat Transports, Links to Atmospheric Circulation, Ocean Temperature and Sea Ice ConditionsCitePersonal Author:Serreze, Mark C. ; Barrett, Andrew P. ; ...2019 | Journal of Geophysical Research: Oceans, 124, 9317–9337Description:The Bering Strait oceanic heat transport influences seasonal sea ice retreat and advance in the Chukchi Sea. Monitored since 1990, it depends on water...Deep Crustal Faults, Shear Zones, and Magmatism in the Eastern Cordillera of Colombia: Growth of a Plateau From Teleseismic Receiver Function and Geochemical Mio-Pliocene Volcanism ConstraintsCitePersonal Author:Monsalve, G. ; Jaramillo, J. S. ; ...2019 | JGR Solid Earth (2019). 124(9): 9833-9851Description:The Eastern Cordillera of Colombia, in the northern Andes, is an example of an orogen in which Mesozoic basins were compressed during the Cenozoic, fo...Seismicity at the Northern Hikurangi Margin, New Zealand, and Investigation of the Potential Spatial and Temporal Relationships With a Shallow Slow Slip EventCitePersonal Author:Yarce, J. ; Sheehan, A. F. ; ...2019 | JGR Solid Earth (2019). 124(5): 4751-5766Description:In 2014–2015, the Hikurangi Ocean Bottom Investigation of Tremor and Slow Slip experiment deployed seafloor absolute pressure gauges and ocean botto...
More +
You May Also Like
- File Format:
- RIS
Observations of restratification after a wind mixing event in a shallow highly stratified estuary
Cite
Personal Author:
Coogan, J. ; Dzwonkowski, B. ; ...
2019 | Estuaries and Coasts, 43, 1-30
Description:
In stratified estuaries susceptible to wind mixing events, the changes in stratification have important implications for estuarine dynamics. Understan...