Laurence Soderblom, PhD (Former Employee)
Science and Products
Filter Total Items: 137
Geology and Surface Processes on Titan Geology and Surface Processes on Titan
The surface of Titan has been revealed globally, if incompletely, by Cassini observations at infrared and radar wavelengths as well as locally by the instruments on the Huygens probe. Extended dune fields, lakes, mountainous terrain, dendritic erosion patterns and erosional remnants indicate dynamic surface processes. Valleys, small-scale gullies and rounded cobbles such as those...
Authors
Ralf Jaumann, Randolph Kirk, Ralph Lorenz, Rosaly Lopes, Ellen Stofan, Elizabeth Turtle, Horst Keller, Charles Wood, Christophe Sotin, Laurence Soderblom, Martin Tomasko
Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars
The strike and dip of lithologic units imaged in stereo by the Spirit rover in the Columbia Hills using three-dimensional imaging software shows that measured dips (15-32??) for bedding on the main edifice of the Columbia Hill are steeper than local topography (???8-10??). Outcrops measured on West Spur are conformable in strike with shallower dips (7-15??) than observed on Husband Hill...
Authors
T.J. McCoy, M. Sims, M.E. Schmidt, L. Edwards, L.L. Tornabene, L.S. Crumpler, B. Cohen, L.A. Soderblom, D.L. Blaney, S. Squyres, R. E. Arvidson, J.W. Rica, E. Treguier, C. d’Uston, J. Grant, H.Y. McSween, M.P. Golombek, A. Haldemann, P.A. de Souza
Fluvial channels on Titan: Initial Cassini RADAR observations Fluvial channels on Titan: Initial Cassini RADAR observations
Cassini radar images show a variety of fluvial channels on Titan's surface, often several hundreds of kilometers in length. Some (predominantly at low- and mid-latitude) are radar-bright and braided, resembling desert washes where fines have been removed by energetic surface liquid flow, presumably from methane rainstorms. Others (predominantly at high latitudes) are radar-dark and...
Authors
R. Lorenz, R.M. Lopes, F. Paganelli, J. I. Lunine, Randolph Kirk, K. Mitchell, Laurence Soderblom, E. Stofan, G. Ori, M. Myers, H. Miyamoto, J. Radebaugh, B. Stiles, S. Wall, C. Wood
Fluvial erosion and post-erosional processes on Titan Fluvial erosion and post-erosional processes on Titan
The surface of Titan has been revealed by Cassini observations in the infrared and radar wavelength ranges as well as locally by the Huygens lander instruments. Sand seas, recently discovered lakes, distinct landscapes and dendritic erosion patterns indicate dynamic surface processes. This study focus on erosional and depositional features that can be used to constrain the amount of...
Authors
R. Jaumann, R. Brown, K. Stephan, J. Barnes, L.A. Soderblom, Christophe Sotin, S. Le Mouelic, R. Clark, J. Soderblom, B. Buratti, R. Wagner, T. McCord, S. Rodriguez, K. Baines, D. Cruikshank, P. Nicholson, C.A. Griffith, M. Langhans, R. Lorenz
The identification of liquid ethane in Titan's Ontario Lacus The identification of liquid ethane in Titan's Ontario Lacus
Titan was once thought to have global oceans of light hydrocarbons on its surface, but after 40 close flybys of Titan by the Cassini spacecraft, it has become clear that no such oceans exist. There are, however, features similar to terrestrial lakes and seas, and widespread evidence for fluvial erosion, presumably driven by precipitation of liquid methane from Titan's dense, nitrogen...
Authors
R. Brown, L.A. Soderblom, J.M. Soderblom, R. Clark, R. Jaumann, J. Barnes, Christophe Sotin, B. Buratti, K. Baines, P. Nicholson
Dunes on Titan observed by Cassini Radar Dunes on Titan observed by Cassini Radar
Thousands of longitudinal dunes have recently been discovered by the Titan Radar Mapper on the surface of Titan. These are found mainly within ±30° of the equator in optically-, near-infrared-, and radar-dark regions, indicating a strong proportion of organics, and cover well over 5% of Titan's surface. Their longitudinal duneform, interactions with topography, and correlation with other...
Authors
J. Radebaugh, R. Lorenz, J. I. Lunine, S. Wall, G. Boubin, E. Reffet, Randolph Kirk, R.M. Lopes, E. Stofan, Laurence Soderblom, M. Allison, M. Janssen, P. Paillou, P. Callahan, Carl Spencer
Science and Products
Filter Total Items: 137
Geology and Surface Processes on Titan Geology and Surface Processes on Titan
The surface of Titan has been revealed globally, if incompletely, by Cassini observations at infrared and radar wavelengths as well as locally by the instruments on the Huygens probe. Extended dune fields, lakes, mountainous terrain, dendritic erosion patterns and erosional remnants indicate dynamic surface processes. Valleys, small-scale gullies and rounded cobbles such as those...
Authors
Ralf Jaumann, Randolph Kirk, Ralph Lorenz, Rosaly Lopes, Ellen Stofan, Elizabeth Turtle, Horst Keller, Charles Wood, Christophe Sotin, Laurence Soderblom, Martin Tomasko
Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars
The strike and dip of lithologic units imaged in stereo by the Spirit rover in the Columbia Hills using three-dimensional imaging software shows that measured dips (15-32??) for bedding on the main edifice of the Columbia Hill are steeper than local topography (???8-10??). Outcrops measured on West Spur are conformable in strike with shallower dips (7-15??) than observed on Husband Hill...
Authors
T.J. McCoy, M. Sims, M.E. Schmidt, L. Edwards, L.L. Tornabene, L.S. Crumpler, B. Cohen, L.A. Soderblom, D.L. Blaney, S. Squyres, R. E. Arvidson, J.W. Rica, E. Treguier, C. d’Uston, J. Grant, H.Y. McSween, M.P. Golombek, A. Haldemann, P.A. de Souza
Fluvial channels on Titan: Initial Cassini RADAR observations Fluvial channels on Titan: Initial Cassini RADAR observations
Cassini radar images show a variety of fluvial channels on Titan's surface, often several hundreds of kilometers in length. Some (predominantly at low- and mid-latitude) are radar-bright and braided, resembling desert washes where fines have been removed by energetic surface liquid flow, presumably from methane rainstorms. Others (predominantly at high latitudes) are radar-dark and...
Authors
R. Lorenz, R.M. Lopes, F. Paganelli, J. I. Lunine, Randolph Kirk, K. Mitchell, Laurence Soderblom, E. Stofan, G. Ori, M. Myers, H. Miyamoto, J. Radebaugh, B. Stiles, S. Wall, C. Wood
Fluvial erosion and post-erosional processes on Titan Fluvial erosion and post-erosional processes on Titan
The surface of Titan has been revealed by Cassini observations in the infrared and radar wavelength ranges as well as locally by the Huygens lander instruments. Sand seas, recently discovered lakes, distinct landscapes and dendritic erosion patterns indicate dynamic surface processes. This study focus on erosional and depositional features that can be used to constrain the amount of...
Authors
R. Jaumann, R. Brown, K. Stephan, J. Barnes, L.A. Soderblom, Christophe Sotin, S. Le Mouelic, R. Clark, J. Soderblom, B. Buratti, R. Wagner, T. McCord, S. Rodriguez, K. Baines, D. Cruikshank, P. Nicholson, C.A. Griffith, M. Langhans, R. Lorenz
The identification of liquid ethane in Titan's Ontario Lacus The identification of liquid ethane in Titan's Ontario Lacus
Titan was once thought to have global oceans of light hydrocarbons on its surface, but after 40 close flybys of Titan by the Cassini spacecraft, it has become clear that no such oceans exist. There are, however, features similar to terrestrial lakes and seas, and widespread evidence for fluvial erosion, presumably driven by precipitation of liquid methane from Titan's dense, nitrogen...
Authors
R. Brown, L.A. Soderblom, J.M. Soderblom, R. Clark, R. Jaumann, J. Barnes, Christophe Sotin, B. Buratti, K. Baines, P. Nicholson
Dunes on Titan observed by Cassini Radar Dunes on Titan observed by Cassini Radar
Thousands of longitudinal dunes have recently been discovered by the Titan Radar Mapper on the surface of Titan. These are found mainly within ±30° of the equator in optically-, near-infrared-, and radar-dark regions, indicating a strong proportion of organics, and cover well over 5% of Titan's surface. Their longitudinal duneform, interactions with topography, and correlation with other...
Authors
J. Radebaugh, R. Lorenz, J. I. Lunine, S. Wall, G. Boubin, E. Reffet, Randolph Kirk, R.M. Lopes, E. Stofan, Laurence Soderblom, M. Allison, M. Janssen, P. Paillou, P. Callahan, Carl Spencer