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Ramon Arrowsmith
Professor of Geology
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Ramon Arrowsmith 8 Std.
OpenTopography Community Dataspace!
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Jim Olsen Photography 21. Feb.
In camera double exposure at Taos Pueblo many years ago. Nikon FE2, 28mm Nikkor and 500 mm Nikkor reflex (mirror lens) on Kodachrome 64.
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OpenTopography 19. Feb.
Antwort an @entwineio
Central Queenstown shown in point cloud data and visualized in OT's browser-based viewer (powered by Potree & ). Select an area of interest on any dataset in OT and check the "3D Point Cloud Visualization" option to interactively explore in 3D.
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OpenTopography 19. Feb.
Point cloud data and on-demand processing and visualization for this new Queenstown, New Zealand 2016 dataset is available from OpenTopography: ~1.8 billion points, 319 sq km
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Ramon Arrowsmith 16. Feb.
Antwort an @kellilovesrocks
Yes HSD. Just told the Pewe story
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Ramon Arrowsmith 16. Feb.
FIeld Geology class: Salt River terraces.This is the Mesa terrace (~400ka) with stage IV caliche. I learned the stop from the late Prof TL Pewe
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Ramon Arrowsmith 10. Feb.
Antwort an @TucsonPeck
Water Knife is great cli-fi! Very original feel
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NSGIC 7. Feb.
As need for data grows, experts hope for GPS-like boom. Phil Worrall, Dennis Pedersen, and Nate Roth on the latest episode of via
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Ramon Arrowsmith 8. Feb.
main points seem to be at least where there are high creep rates, the resulting fabrics can obscure most evidence for larger ground rupture fairly quickly. Also bigger fissures can form even in creep as amplified drought - related cracking.
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Ramon Arrowsmith 8. Feb.
yes we published some ideas in the Toke et al., 2006 and 2011 papers about Parkfield (where there is creep and M6 eqs). We are working on something now (Nate is visiting and just gave a seminar yesterday) on our work at Dry Lake Valley which is in the creeping section.
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The National Map 7. Feb.
Lidar Data from the cloud: The 3D Elevation Program (3DEP) has announced the availability of a new way to access and process point cloud data from the 3DEP repository.
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OpenTopography 7. Feb.
Antwort an @OpenTopography
"Honestly (OT) made the difference between success and failure of the use of the data because it made it so readily available, and really broke down the barriers to...get access to the data in a form they can use" -P. Worrall, ex director, Indiana Geographic Information Council
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OpenTopography 7. Feb.
New "GIS Addressed" podcast on 3D Elevation data from the perspective of statewide mapping and GIS programs. Features a very nice discussion of OpenTopography and the impact of making data easy to discover and use:
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Ramon Arrowsmith 24. Jan.
Try compass tool in cloudcompare, also looked at LIME software see recent Geosphere paper
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OpenTopography 16. Jan.
Point cloud data from this dataset are available from OpenTopography here: 810 sq km, ~1 billion points.
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Simon Kuestenmacher 12. Jan.
Map shows all Earth Quakes by magnitude since 1898. Australia is almost entirely free from earthquakes. I like that. Source:
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Ramon Arrowsmith 12. Jan.
Favorites in Ethiopia
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Chris Crosby 24. Sep.
A bit of quick math: is now hosting 18,178 sq km of New Zealand point cloud data (18 datasets total: ). That's ~94 billion points for those who prefer to think in laser bounces.
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Mahdi Motagh 30. Dez.
The beauty of high-resolution spotlight data from for detailed analysis of volcanoes. The latest spotlight data clearly show the change in the shape of the volcano between 2007 and 2018. The original images are copyright
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Øystein Lund Andersen 27. Dez.
I have written a detailed account on my observations of the eruption of and the Tsunami on the 22th December, for those interested to read. The account also contains many photos, and links to video footage.
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