Difference between revisions of "July 5, 2014"
| Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
=Fish Scales= | =Fish Scales= | ||
| − | |||
<!-- ws:start:WikiTextHeadingRule:0:<h1> --> | <!-- ws:start:WikiTextHeadingRule:0:<h1> --> | ||
<!-- ws:start:WikiTextLocalImageRule:6:<img src="/file/view/LPOD-Nov26-12.jpg/385859602/LPOD-Nov26-12.jpg" alt="" title="" style="width: 1000px;" /> -->[[File:LPOD-Nov26-12.jpg|LPOD-Nov26-12.jpg]]<!-- ws:end:WikiTextLocalImageRule:6 --><br /> | <!-- ws:start:WikiTextLocalImageRule:6:<img src="/file/view/LPOD-Nov26-12.jpg/385859602/LPOD-Nov26-12.jpg" alt="" title="" style="width: 1000px;" /> -->[[File:LPOD-Nov26-12.jpg|LPOD-Nov26-12.jpg]]<!-- ws:end:WikiTextLocalImageRule:6 --><br /> | ||
| − | <em>diagram from [http://www.agu.org/pubs/crossref/2012/2011JE003926.shtml Scholten and LRO colleagues (2012)]</em><br /> | + | <em>diagram from [http://www.agu.org/pubs/crossref/2012/2011JE003926.shtml" rel="nofollow Scholten and LRO colleagues (2012)]</em><br /> |
<br /> | <br /> | ||
| − | I have always thought Mare Crisium looks like a fish swimming towards the west. The color in these maps of topography and slopes suggest that it is a tropical fish, perhaps an [http://saltwater.tropicalfishandaquariums.com/Angelfish/BlueRingAngel.asp angelfish]. These diagrams are wonderful examples of the new level of topographic detail that LRO provides, this time derived from stereo-determinations of altitude from overlapping LRO Wide Angle Camera (WAC) images. The top left image shows a 1000 m range of topography across the mare floor of the basin. The right side diagram, that maps out slopes between 0° and 3°, demonstrates that the edges of the high red bench in the left diagram are mare ridges, whose "steepness" is shown by red in the right image. The ridges are faults that dropped down the center of the mare by hundreds of meters. The entire mare tilts to the south, from the incomplete high annular bench (red) to the low area (blue) downdropped by southern mare ridges. The slope map shows that mare ridges, which topographically are very gentle rises, are actually noticeably steeper than mare surfaces, made smooth by the flowing of low-viscosity lavas. The histogram reveals the same thing, the average slope of Mare Crisium is only 0.5°. Finally, slope maps may be the definitive way to map out an entire basin's mare ridges, a valuable complement to low-sun telescopic [http://lpod.wikispaces.com/January+4%2C+2012 images.] <br /> | + | I have always thought Mare Crisium looks like a fish swimming towards the west. The color in these maps of topography and slopes suggest that it is a tropical fish, perhaps an [http://saltwater.tropicalfishandaquariums.com/Angelfish/BlueRingAngel.asp" rel="nofollow angelfish]. These diagrams are wonderful examples of the new level of topographic detail that LRO provides, this time derived from stereo-determinations of altitude from overlapping LRO Wide Angle Camera (WAC) images. The top left image shows a 1000 m range of topography across the mare floor of the basin. The right side diagram, that maps out slopes between 0° and 3°, demonstrates that the edges of the high red bench in the left diagram are mare ridges, whose "steepness" is shown by red in the right image. The ridges are faults that dropped down the center of the mare by hundreds of meters. The entire mare tilts to the south, from the incomplete high annular bench (red) to the low area (blue) downdropped by southern mare ridges. The slope map shows that mare ridges, which topographically are very gentle rises, are actually noticeably steeper than mare surfaces, made smooth by the flowing of low-viscosity lavas. The histogram reveals the same thing, the average slope of Mare Crisium is only 0.5°. Finally, slope maps may be the definitive way to map out an entire basin's mare ridges, a valuable complement to low-sun telescopic [http://lpod.wikispaces.com/January+4%2C+2012 images.] <br /> |
<br /> | <br /> | ||
| − | <em>[mailto:tychocrater@yahoo.com Chuck Wood]<br /> | + | <em>[mailto:tychocrater@yahoo.com" rel="nofollow Chuck Wood]<br /> |
This is, I think, a very interesting LPOD from Nov 26, 2012, but no one commented on it them, perhaps it will be more interesting today!</em><br /> | This is, I think, a very interesting LPOD from Nov 26, 2012, but no one commented on it them, perhaps it will be more interesting today!</em><br /> | ||
<br /> | <br /> | ||
<strong>Related Links</strong><br /> | <strong>Related Links</strong><br /> | ||
<em>[http://lpod.wikispaces.com/21st+Century+Atlas+of+the+Moon 21st Century Atlas]</em> chart 2.<br /> | <em>[http://lpod.wikispaces.com/21st+Century+Atlas+of+the+Moon 21st Century Atlas]</em> chart 2.<br /> | ||
| − | F. Scholten, J. Oberst, K.-D. Matz, T. Roatsch, M. Wählisch, E. J. Speyerer, and M. S. Robinson (2012) [http://www.agu.org/pubs/crossref/2012/2011JE003926.shtml GLD100: The near-global lunar 100 m raster DTM from LROC WAC stereo image data.] <em>J. Geophys. Res.</em> Vol. 117, E00H17, doi:10.1029/2011JE003926, 2012<br /> | + | F. Scholten, J. Oberst, K.-D. Matz, T. Roatsch, M. Wählisch, E. J. Speyerer, and M. S. Robinson (2012) [http://www.agu.org/pubs/crossref/2012/2011JE003926.shtml" rel="nofollow GLD100: The near-global lunar 100 m raster DTM from LROC WAC stereo image data.] <em>J. Geophys. Res.</em> Vol. 117, E00H17, doi:10.1029/2011JE003926, 2012<br /> |
<br /> | <br /> | ||
<hr /> | <hr /> | ||
Revision as of 22:01, 4 January 2015
Fish Scales
diagram from " rel="nofollow Scholten and LRO colleagues (2012)
I have always thought Mare Crisium looks like a fish swimming towards the west. The color in these maps of topography and slopes suggest that it is a tropical fish, perhaps an " rel="nofollow angelfish. These diagrams are wonderful examples of the new level of topographic detail that LRO provides, this time derived from stereo-determinations of altitude from overlapping LRO Wide Angle Camera (WAC) images. The top left image shows a 1000 m range of topography across the mare floor of the basin. The right side diagram, that maps out slopes between 0° and 3°, demonstrates that the edges of the high red bench in the left diagram are mare ridges, whose "steepness" is shown by red in the right image. The ridges are faults that dropped down the center of the mare by hundreds of meters. The entire mare tilts to the south, from the incomplete high annular bench (red) to the low area (blue) downdropped by southern mare ridges. The slope map shows that mare ridges, which topographically are very gentle rises, are actually noticeably steeper than mare surfaces, made smooth by the flowing of low-viscosity lavas. The histogram reveals the same thing, the average slope of Mare Crisium is only 0.5°. Finally, slope maps may be the definitive way to map out an entire basin's mare ridges, a valuable complement to low-sun telescopic images.
" rel="nofollow Chuck Wood
This is, I think, a very interesting LPOD from Nov 26, 2012, but no one commented on it them, perhaps it will be more interesting today!
Related Links
21st Century Atlas chart 2.
F. Scholten, J. Oberst, K.-D. Matz, T. Roatsch, M. Wählisch, E. J. Speyerer, and M. S. Robinson (2012) " rel="nofollow GLD100: The near-global lunar 100 m raster DTM from LROC WAC stereo image data. J. Geophys. Res. Vol. 117, E00H17, doi:10.1029/2011JE003926, 2012
