![[USGS Banner]](/assets/banners/default.jpg)
|
|
|
![[Photo of Lisa]](photo.jpg)
|
Lisa R. Gaddis, Geologist & Program Chief
U.S. Geological Survey, Astrogeology Team
"We have a hunger of the mind which asks for knowledge of all around us, and the more we gain, the more is our desire; the more we see, the more we are capable of seeing." |
Lisa Gaddis is a Research Geologist with the Astrogeology Team of the U.S. Geological Survey in Flagstaff, AZ, where she has worked since 1990 as a scientist and an administrator. Lisa served as Chief Scientist of the Astrogeology Team from June 2003 to October 2007. Her research interests have focus on the use of remote sensing data at multiple wavelengths to understand geologic processes in a variety of environments on the Earth, Moon, Mars, and Venus. In addition to being experienced in the use of radar data for characterizing emplacement and evolution of volcanic and eolian terrains on Earth, Lisa is skilled in calibration and analyses of spectroscopic data from visible/near-infrared and thermal emission systems. Recent research projects includes use of visible and near-infrared Clementine data for compositional studies of volcanoes on the Moon, deconvolution of thermal emission data from Mars Global Surveyor to study the origin of layered deposits in channels, canyons, and craters on Mars, and use of stereo image data to characterize pyroclastic deposits volumes and morphology at the lunar crater Alphonsus. While working with Athena Science Team members at USGS (Herkenhoff, Soderblom, Johnson, Geissler, Chapman) to operate and analyze data from the MER Microscopic Imager and other instruments, Lisa served as Athena Science Team Collaborator and a member of the Mars Exploration Rovers (MER) Long-Term Planning Science Theme group. Lisa is also Science Lead for an Astrogeology planetary cartography project (Tammy Becker, Project Lead) to digitize, process, and create a long-lasting and valuable digital archive of the Lunar Orbiter photographic data from the late 1960's (Lunar Orbiter Digitization Project). In partnership with staff at USGS and JPL, Lisa is Principal Investigator for the Imaging Node of the NASA Planetary Data System. The Imaging Node team recently released the Clementine Near-Infrared Global Mosaic of the Moon.
Dr. Gaddis is an active member of NASA review and advisory panels for space science, space exploration, and planetary cartography. She had the pleasure of co-convening a meeting in Flagstaff ("New Views of the Moon II") featuring research in lunar science and is co-author of a chapter on lunar resources from a newly published book from this series of meetings (Duke et al., 2006). Dr. Gaddis is more recently involved in efforts to return to the Moon (MMSSG White Paper, Archinal Datacontrol). Lisa served for 3 years as Editor for the Planetary Sciences Section of Eos, Transactions of the American Geophysical Union. Currently a Consulting Member of the Working Group for Planetary System Nomenclature of the International Astronomical Union (Gazeteer of Planetary Nomenclature), Gaddis is also serving as Chair of the Science Council of the Lunar and Planetary Institute of the Universities Space Research Association (USRA, http://www.usra.edu/).
As do many Astrogeology scientists and staff, Dr. Gaddis frequently gives public presentations on topics in earth and space science. She particularly enjoys speaking and working with children of all ages, and she gives in-class talks, provides tours of USGS facilities, and serves as judge in local science fairs. You can download some of Lisa's presentation and play materials emphasizing the Moon (Moon Magnets, To the Moon!, Moon Cartoon) and Mars (Mars Magnets, Exploring Mars) for children on the Astro Kids! page under Stuff for Teachers.
Duke, Michael B., Lisa R. Gaddis, G. Jeffrey Taylor, Harrison H. Schmitt, 2006, Development of the Moon, Rev. Mineralogy and Geochemistry, v. 60, pp. 597-656.
Farrand, W.H., L.R. Gaddis, L. Keszthelyi, 2005, Pitted cones and domes on Mars: Observations in Acidalia Planitia and Cydonia Mensae using MOC, THEMIS, and TES data, J. Geophys. Res., 110, E05005 10.1029/2004JE002297.
Eliason, E., C. Isbell, E. Lee, T. Becker, L. Gaddis, A. McEwen, M. Robinson, Mission to the Moon: The Clementine UVVIS Global Lunar Mosaic, PDS Volumes USA_NASA_PDS_CL_4001 through 4078, produced by the U.S. Geological Survey and distributed on CD media by the Planetary Data System, 1999.
Gaddis, L.R., 1992, Lava-flow characterization at Pisgah volcanic field, California, with multiparameter imaging radar, Geol. Soc. Am. Bull., 104, 695-703.
Gaddis, Lisa R., 1994, Evaluation of an empirical radar backscatter model for predicting backscatter characteristics of geologic units at Pisgah volcanic field, California: Geophysical Research Letters, v. 21, #17, pp. 1803-1806.
Gaddis, L.R., 2004, .The Face of the Moon: Lunar Volcanoes and Volcanic Deposits,. Ch. 5 in T. Gregg and R. Lopes (eds.), Volcanic Worlds, Praxis Publishing, London.
Gaddis, L.R. and Greeley, R., 1990, Volcanism in NW Ishtar Terra, Venus: Icarus, v. 87, p. 327-338.
Gaddis, L.R., B.R. Hawke, M.S. Robinson, and C.R. Coombs, 2000, Compositional analyses of small lunar pyroclastic deposits using Clementine multispectral data, J. Geophys. Res., 105, 4245-4262.
Gaddis, Lisa, Chris Isbell, Matt Staid, Eric Eliason, Ella Mae Lee, Lynn Weller, Tracie Sucharski, Paul Lucey, Dave Blewett, John Hinrichs, and Donovan Steutel, in review, Clementine NIR Global Lunar Mosaic, PDS Volumes USA_NASA_PDS_CL_5001 through 5078, produced by the U.S. Geological Survey and distributed online and on DVD media by the Planetary Data System.
Gaddis, L.R., A.S. McEwen, and T. Becker, 1995, Recalibration of Galileo EM1 SSI data for the lunar limb and far side: The effects of scattered light removal, J. Geophys. Res.-Planets, 100, 26345-26355.
Gaddis, L.R., Mouginis-Mark, P., and Hayashi, J.N., 1990, Lava flow surface textures: SIR-B radar image texture, field observations, and terrain measurements, Photogramm. Eng. Rem. Sens., 56, 211-224.
Gaddis, L.R., Mouginis-Mark, P., Singer, R. and Kaupp, V., 1989, Geologic analyses of Shuttle Imaging Radar (SIR-B) data of Kilauea Volcano, Geol. Soc. Am. Bull., 101, 317-332.
Gaddis, L.R., Pieters, C.M., and Hawke, B.R., 1985, Remote sensing of lunar pyroclastic mantling deposits, Icarus, 61, 461-489.
Gaddis, L.R., J.A. Skinner, L. Keszthelyi, T.M. Hare, E. Howington-Kraus, and M. Rosiek, 2005, Volcanoes in Alphonsus Crater: 3-D Analyses of a Future Lunar Landing Site, Space Resources Roundtable VII, Lunar and Planetary Institute, Houston, TX, abstract # 2056.
Gaddis, L.R., Soderblom, L.A., Kieffer, H.H., Becker, K.J., and Mullins, K.F., 1996, Decomposition of AVIRIS spectra: Extraction of spectral reflectance, atmospheric, and instrumental components, IEEE Trans. Geosci. Rem. Sens., 34, 163-178.
Gaddis, L., M.I. Staid, J.A. Tyburczy, B.R. Hawke, and N. Petro, 2003, Compositions of Lunar Pyroclastic Deposits, Icarus 161/2, p. 262-280.
Gaddis, L.R., M.I. Staid, and T.N. Titus, 2002, Compositions of Geologic Units in Central Valles Marineris, Mars: Demixing Analyses of TES Data, Lunar Plan. Sci. XXXIII, abstract #1784.
Gaddis, L.R., and 19 others, 1999, Digital Mapping of the Mars Pathfinder Landing Site: Design, Acquisition, and Derivation of a Cartographic Product for Science Applications, J. Geophys. Res., 104, 8853-8868.
Giguere, T.A., B.R. Hawke, L.R. Gaddis, D.T. Blewett, J.J. Gillis-Davis, P.G. Lucey, G.A. Smith, P.D. Spudis, and G.J. Taylor, Remote sensing studies of the Dionysius region of the Moon, J. Geophys. Res. 111, doi:10.1029/2005JE002639, 2006.
Herkenhoff, K.A., S. W. Squyres, R. Arvidson, D. S. Bass, J. F. Bell, III, P. Bertelsen, N. A. Cabrol, L. Gaddis, A. G. Hayes, S. F. Hviid, J. R. Johnson, K. M. Kinch, M. B. Madsen, J. N. Maki, S. M. McLennan, H. Y. McSween, J. W. Rice, Jr., M. Sims, P. H. Smith, L. A. Soderblom, N. Spanovich, R. Sullivan, A. Wang, 2004, Textures of the Soils and Rocks at Gusev Crater from Spirit.s Microscopic Imager, Science, 305, 5685, 824-826.
Herkenhoff, K.E., Squyres, S.W., Arvidson, R., Bass, D.S., Bell III, J.F., Bertelsen, P., Ehlmann, B.L., Farrand, W., Gaddis, L., Greeley, R., Grotzinger, J., Hayes, A.G., Hviid, S.F., Johnson, J.R., Jolliff, B., Kinch, K.M., Knoll, A.H., Madsen, M.B., Maki, J.N., McLennan, S.M., McSween, H.Y., Rice, Jr., J.W., Richter, L., Sims, M., Smith, P.H., Soderblom, L.A., Spanovich, N., Sullivan, R., Thompson, S., Wdowiak, T., Weitz, C., Whelley, P., 2004: Evidence for Ancient Water on Meridiani Planum from Opportunity.s Microscopic Imager, Science 306, 1727-1730.
Herkenhoff, K.A. and 41 others (including Gaddis), Overview of the Microscopic Imager Investigation during Spirit.s first 450 sols in Gusev crater, J. Geophys. Res. 111, doi:10.1029/2005JE002574, 2006.
Johnson, J.R. and Gaddis, L., 1996, Modeling of fluidized ejecta emplacement over digital topography on Venus, J. Geophys. Res., 101, #E2, 4673-4682.
Kirk, R.L., B.A. Archinal, L.R. Gaddis, and M.R. Rosiek, 2006, Cartography for lunar exploration: 2006 status and planned missions, International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences (ISPRS), XXXVI, Part 4, "Geospatial Databases for Sustainable Development", Goa, India.
Kirk, R.L., E. Howington-Kraus, T. Hare, E. Dorrer, D. Cook, M. Gordon, K. Becker, R. Redding, J. Blue, E.M. Lee, L.R. Gaddis, J.R. Johnson, L.A. Soderblom, and A.W. Ward, 1999, Digital photogrammetric analysis of the IMP camera images: Mapping the Mars Pathfinder landing site in three dimensions, Journal of Geophysical Research.Planets, 104, 8869-8887.
McEwen, A.S., Gaddis, L.R., Neukum, G., Hoffmann, H., Pieters, C.M., and Head, J.W., 1993, Galileo observations of Post-Imbrium lunar craters during the first Earth-Moon flyby: Journal of Geophysical Research, v. 98, pp. 17207-17231.
Pieters, C.M., J.W. Head III, L. Gaddis, B. Jolliff, and M. Duke, 2001, Rock Types of South Pole-Aitken Basin and Extent of Basaltic Volcanism, J. Geophys. Res., 106, 28001-28022.
Shepard, M.K., B.A. Campbell, M.H. Bulmer, T.G. Farr, L.R. Gaddis, and J.J. Plaut, 2001, The Roughness of Natural Terrain. A Planetary and Remote Sensing Perspective. Journal of Geophysical Research - Planets, 106, p. 32,777.
Skinner, J.A., L.R. Gaddis, L. Keszthelyi, T.M. Hare, E. Howington-Kraus, and M. Rosiek, 2005, Alphonsus-type dark-halo craters: Morphometry and volume reassessments and implications for eruptive style, LPS XXXVI, abstract # 2344.
Ward, A.W., L.R. Gaddis, R.L. Kirk, L.A. Soderblom, K.L. Tanaka, M.P. Golombek, T.J. Parker, R. Greeley, and R.O. Kuzmin, 1999, General geology and geomorphology of the Mars Pathfinder landing site, Journal of Geophysical Research Planets, 104, 8555-8571.
