Laurence Soderblom, PhD (Former Employee)
Science and Products
Filter Total Items: 137
THEMIS high-resolution digital terrain: Topographic and thermophysical mapping of Gusev Crater, Mars THEMIS high-resolution digital terrain: Topographic and thermophysical mapping of Gusev Crater, Mars
We discuss a new technique to generate high-resolution digital terrain models (DTMs) and to quantitatively derive and map slope-corrected thermophysical properties such as albedo, thermal inertia, and surface temperatures. This investigation is a continuation of work started by Kirk et al. (2005), who empirically deconvolved Thermal Emission Imaging System (THEMIS) visible and thermal...
Authors
G.E. Cushing, T.N. Titus, L.A. Soderblom, R. Kirk
The geology of Hotei Regio, Titan: Correlation of Cassini VIMS and RADAR The geology of Hotei Regio, Titan: Correlation of Cassini VIMS and RADAR
Joint Cassini VIMS and RADAR SAR data of ∼700-km-wide Hotei Regio reveal a rich collection of geological features that correlate between the two sets of images. The degree of correlation is greater than anywhere else seen on Titan. Central to Hotei Regio is a basin filled with cryovolcanic flows that are anomalously bright in VIMS data (in particular at 5 μm) and quite variable in...
Authors
L.A. Soderblom, R. Brown, J.M. Soderblom, J. Barnes, R. Kirk, Christophe Sotin, R. Jaumann, D. MacKinnon, D.W. Mackowski, K. Baines, B. Buratti, R. Clark, P. Nicholson
Analysis of a cryolava flow-like feature on Titan Analysis of a cryolava flow-like feature on Titan
This paper reports on the analysis of the highest spatial resolution hyperspectral images acquired by the Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassini spacecraft during its prime mission. A bright area matches a flow-like feature coming out of a caldera-like feature observed in Synthetic Aperture Radar (SAR) data recorded by the Cassini radar experiment [Lopes et...
Authors
L. Le Corre, S. Le Mouelic, Christophe Sotin, J. Combe, S. Rodriguez, J. Barnes, R. Brown, B. Buratti, R. Jaumann, J. Soderblom, L.A. Soderblom, R. Clark, K. Baines, P. Nicholson
Surface processes recorded by rocks and soils on Meridiani Planum, Mars: Microscopic Imager observations during Opportunity's first three extended missions Surface processes recorded by rocks and soils on Meridiani Planum, Mars: Microscopic Imager observations during Opportunity's first three extended missions
The Microscopic Imager (MI) on the Mars Exploration Rover Opportunity has returned images of Mars with higher resolution than any previous camera system, allowing detailed petrographic and sedimentological studies of the rocks and soils at the Meridiani Planum landing site. Designed to simulate a geologist's hand lens, the MI is mounted on Opportunity's instrument arm and can resolve...
Authors
Kenneth Herkenhoff, John P. Grotzinger, Andrew Knoll, Scott McLennan, Catherine Weitz, Aileen Yingst, Robert Anderson, Brent Archinal, Raymond Arvidson, Janet Barrett, Kris Becker, James F. Bell, Charles Budney, Mary Chapman, Debbie Cook, Bethany Ehlmann, Brenda Franklin, Lisa Gaddis, Donna Galuszka, Patricia Garcia, Paul Geissler, Trent Hare, Elpitha Howington-Kraus, Jeffrey Johnson, Laszlo P. Keszthelyi, Randolph Kirk, Peter Lanagan, Ella M. Lee, Craig Leff, Justin Maki, Kevin Mullins, Timothy Parker, Bonnie Redding, Mark Rosiek, Michael Sims, Laurence Soderblom, Nicole Spanovich, Richard Springer, Steven Squyres, Daniel Stolper, Robert Sucharski, Tracie Sucharski, Robert Sullivan, James Torson
First in situ investigation of a dark wind streak on Mars First in situ investigation of a dark wind streak on Mars
Prominent low‐albedo wind streaks issue from embayments at the north end of Victoria crater in Meridiani Planum, the site of surface investigations by the Mars Exploration Rover Opportunity. Opportunity was sent to examine the darkest of these wind streaks and compare it to the adjacent soil in the brighter corridor between the streaks. Two nearby sites inside and outside of the streak...
Authors
Paul Geissler, J. Johnson, R. Sullivan, Kenneth Herkenhoff, D. Mittlefehldt, Robin Fergason, D. Ming, R. Morris, S. Squyres, Laurence Soderblom, M. Golombek
First in situ investigation of a dark wind streak on Mars First in situ investigation of a dark wind streak on Mars
[1] Prominent low-albedo wind streaks issue from embayments at the north end of Victoria crater in Meridiani Planum, the site of surface investigations by the Mars Exploration Rover Opportunity. Opportunity was sent to examine the darkest of these wind streaks and compare it to the adjacent soil in the brighter corridor between the streaks. Two nearby sites inside and outside of the...
Authors
Paul Geissler, J.R. Johnson, R. Sullivan, Kenneth E. Herkenhoff, K Mittlefeldt, Robin Fergason, D. Ming, R. Morrison, S. Squyres, Laurence Soderblom, M. Golombek
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
THEMIS high-resolution digital terrain: Topographic and thermophysical mapping of Gusev Crater, Mars THEMIS high-resolution digital terrain: Topographic and thermophysical mapping of Gusev Crater, Mars
We discuss a new technique to generate high-resolution digital terrain models (DTMs) and to quantitatively derive and map slope-corrected thermophysical properties such as albedo, thermal inertia, and surface temperatures. This investigation is a continuation of work started by Kirk et al. (2005), who empirically deconvolved Thermal Emission Imaging System (THEMIS) visible and thermal...
Authors
G.E. Cushing, T.N. Titus, L.A. Soderblom, R. Kirk
The geology of Hotei Regio, Titan: Correlation of Cassini VIMS and RADAR The geology of Hotei Regio, Titan: Correlation of Cassini VIMS and RADAR
Joint Cassini VIMS and RADAR SAR data of ∼700-km-wide Hotei Regio reveal a rich collection of geological features that correlate between the two sets of images. The degree of correlation is greater than anywhere else seen on Titan. Central to Hotei Regio is a basin filled with cryovolcanic flows that are anomalously bright in VIMS data (in particular at 5 μm) and quite variable in...
Authors
L.A. Soderblom, R. Brown, J.M. Soderblom, J. Barnes, R. Kirk, Christophe Sotin, R. Jaumann, D. MacKinnon, D.W. Mackowski, K. Baines, B. Buratti, R. Clark, P. Nicholson
Analysis of a cryolava flow-like feature on Titan Analysis of a cryolava flow-like feature on Titan
This paper reports on the analysis of the highest spatial resolution hyperspectral images acquired by the Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassini spacecraft during its prime mission. A bright area matches a flow-like feature coming out of a caldera-like feature observed in Synthetic Aperture Radar (SAR) data recorded by the Cassini radar experiment [Lopes et...
Authors
L. Le Corre, S. Le Mouelic, Christophe Sotin, J. Combe, S. Rodriguez, J. Barnes, R. Brown, B. Buratti, R. Jaumann, J. Soderblom, L.A. Soderblom, R. Clark, K. Baines, P. Nicholson
Surface processes recorded by rocks and soils on Meridiani Planum, Mars: Microscopic Imager observations during Opportunity's first three extended missions Surface processes recorded by rocks and soils on Meridiani Planum, Mars: Microscopic Imager observations during Opportunity's first three extended missions
The Microscopic Imager (MI) on the Mars Exploration Rover Opportunity has returned images of Mars with higher resolution than any previous camera system, allowing detailed petrographic and sedimentological studies of the rocks and soils at the Meridiani Planum landing site. Designed to simulate a geologist's hand lens, the MI is mounted on Opportunity's instrument arm and can resolve...
Authors
Kenneth Herkenhoff, John P. Grotzinger, Andrew Knoll, Scott McLennan, Catherine Weitz, Aileen Yingst, Robert Anderson, Brent Archinal, Raymond Arvidson, Janet Barrett, Kris Becker, James F. Bell, Charles Budney, Mary Chapman, Debbie Cook, Bethany Ehlmann, Brenda Franklin, Lisa Gaddis, Donna Galuszka, Patricia Garcia, Paul Geissler, Trent Hare, Elpitha Howington-Kraus, Jeffrey Johnson, Laszlo P. Keszthelyi, Randolph Kirk, Peter Lanagan, Ella M. Lee, Craig Leff, Justin Maki, Kevin Mullins, Timothy Parker, Bonnie Redding, Mark Rosiek, Michael Sims, Laurence Soderblom, Nicole Spanovich, Richard Springer, Steven Squyres, Daniel Stolper, Robert Sucharski, Tracie Sucharski, Robert Sullivan, James Torson
First in situ investigation of a dark wind streak on Mars First in situ investigation of a dark wind streak on Mars
Prominent low‐albedo wind streaks issue from embayments at the north end of Victoria crater in Meridiani Planum, the site of surface investigations by the Mars Exploration Rover Opportunity. Opportunity was sent to examine the darkest of these wind streaks and compare it to the adjacent soil in the brighter corridor between the streaks. Two nearby sites inside and outside of the streak...
Authors
Paul Geissler, J. Johnson, R. Sullivan, Kenneth Herkenhoff, D. Mittlefehldt, Robin Fergason, D. Ming, R. Morris, S. Squyres, Laurence Soderblom, M. Golombek
First in situ investigation of a dark wind streak on Mars First in situ investigation of a dark wind streak on Mars
[1] Prominent low-albedo wind streaks issue from embayments at the north end of Victoria crater in Meridiani Planum, the site of surface investigations by the Mars Exploration Rover Opportunity. Opportunity was sent to examine the darkest of these wind streaks and compare it to the adjacent soil in the brighter corridor between the streaks. Two nearby sites inside and outside of the...
Authors
Paul Geissler, J.R. Johnson, R. Sullivan, Kenneth E. Herkenhoff, K Mittlefeldt, Robin Fergason, D. Ming, R. Morrison, S. Squyres, Laurence Soderblom, M. Golombek
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