Joseph Westlake Print


  240-228-3492

  Joseph.Westlake@jhuapl.edu

: SES

:   Space Physicist

:  Planetary, Heliophysics

  Cassini, INMS, MIMI, Europa Clipper, PIMS, JUICE, JENI, MMS, EIS

 
Degree Field of Study Year Attained Institution Name
Ph.D. Physics 2011 University of Texas at San Antonio
B.S. Physics 2006 University of Michigan
 
AGU Index Category AGU Index Sub-Category
PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS Titan
PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS Europa
PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS Jovian satellites
PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS Enceladus
SPACE PLASMA PHYSICS Instruments and techniques
:
Start Year End Year Description
2012 Current Senior Research Scientist, Johns Hopkins University Applied Physics Laboratory
2011 2012 Postdoctoral Fellow, Johns Hopkins University Applied Physics Laboratory
2006 2011 Graduate Researcher, Southwest Research Institute
2004 2006 Research Assistant, University of Michigan
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The following publication information was downloaded from http://www.researcherId.com/rid/G-2732-2015.
Blase, Ryan C, Miller, Greg, Westlake, Joseph, Brockwell, Tim, Ostrom, Nathaniel, Ostrom, Peggy H, Waite, J Hunter, (2015), A compact E * B filter: A multi-collector cycloidal focusing mass spectrometer., The Review of scientific instruments, 86, 105105

Richard, M. S., Cravens, T. E., Wylie, C., Webb, D., Chediak, Q., Perryman, R., Mandt, K., Westlake, J., Waite, J. H., Jr., Robertson, I., Magee, B. A., Edberg, N. J. T., (2015), An empirical approach to modeling ion production rates in Titan's ionosphere I: Ion production rates on the dayside and globally, Journal of Geophysical Research-Space Physics, 120, 1264-1280

Stevens, Michael H., Evans, J. Scott, Lumpe, Jerry, Westlake, Joseph H., Ajello, Joseph M., Bradley, E. Todd, Esposito, Larry W., (2015), Molecular nitrogen and methane density retrievals from Cassini UVIS dayglow observations of Titan's upper atmosphere, Icarus, 247, 301-312

Mauk, B. H., Blake, J. B., Baker, D. N., Clemmons, J. H., Reeves, G. D., Spence, H. E., Jaskulek, S. E., Schlemm, C. E., Brown, L. E., Cooper, S. A., Craft, J. V., Fennell, J. F., Gurnee, R. S., Hammock, C. M., Hayes, J. R., Hill, P. A., Ho, G. C., Hutcheson, J. C., Jacques, A. D., Kerem, S., Mitchell, D. G., Nelson, K. S., Paschalidis, N. P., Rossano, E., Stokes, M. R., Westlake, J. H., (2014), The Energetic Particle Detector (EPD) Investigation and the Energetic Ion Spectrometer (EIS) for the Magnetospheric Multiscale (MMS) Mission, Space Science Reviews, 1-44, http://link.springer.com/article/10.1007/s11214-014-0055-5

Bell, Jared M., Waite, J. Hunter, Jr., Westlake, Joseph H., Bougher, Stephen W., Ridley, Aaron J., Perryman, Rebecca, Mandt, Kathleen, (2014), Developing a self-consistent description of Titan's upper atmosphere without hydrodynamic escape, Journal of Geophysical Research-Space Physics, 119, 4957-4972

Tobie, G., Teanby, N. A., Coustenis, A., Jaumann, R., Raulin, E., Schmidt, J., Carrasco, N., Coates, Aj., Cordier, D., De Kok, R., Geppert, W. D., Lebreton, J. -P., Lefevre, A., Livengood, T. A., Mandt, K. E., Mitri, G., Nimmo, F., Nixon, C. A., Norman, L., Pappalardo, R. T., Postberg, F., Rodriguez, S., SchuizeMakuch, D., Soderblom, J. M., Solomonidou, A., Stephan, K., Stofan, E. R., Turtle, E. P., Wagner, R. J., West, R. A., Westlake, J. H., (2014), Science goals and mission concept for the future exploration of Titan and Enceladus, Planetary and Space Science, 104, 59-77

Westlake, J. H., Waite, J. H., Jr., Carrasco, N., Richard, M., Cravens, T., (2014), The role of ion-molecule reactions in the growth of heavy ions in Titan's ionosphere, Journal of Geophysical Research-Space Physics, 119, 5951-5963

Westlake, J. H., Waite, J. H., Bell, J. M., Perryman, R., (2014), Observed decline in Titan's thermospheric methane due to solar cycle drivers, Journal of Geophysical Research-Space Physics, 119, 8586-8599

Waite, Jack Hunter, Brockwell, Timothy, Magee, Brian, Teolis, Benjamin, Westlake, Joseph, (2013), Organic chemistry in the Kronian satellite system: Titan and Enceladus, Abstracts of Papers of the American Chemical Society, 246

Luhmann, J. G., Ulusen, D., Ledvina, S. A., Mandt, K., Magee, B., Waite, J. H., Westlake, J., Cravens, T. E., Robertson, I., Edberg, N., Agren, K., Wahlund, J. -E., Ma, Y. -J., Wei, H., Russell, C. T., Dougherty, M. K., (2012), Investigating magnetospheric interaction effects on Titan's ionosphere with the Cassini orbiter Ion Neutral Mass Spectrometer, Langmuir Probe and magnetometer observations during targeted flybys, Icarus, 219, 534-555

Mandt, Kathleen E., Gell, David A., Perry, Mark, Waite, J. Hunter, Jr., Crary, Frank A., Young, David, Magee, Brian A., Westlake, Joseph H., Cravens, Thomas, Kasprzak, Wayne, Miller, Greg, Wahlund, Jan-Erik, Agren, Karin, Edberg, Niklas J. T., Heays, Alan N., Lewis, Brenton R., Gibson, Stephen T., de la Haye, V., Liang, Mao-Chang, (2012), Ion densities and composition of Titan's upper atmosphere derived from the Cassini Ion Neutral Mass Spectrometer: Analysis methods and comparison of measured ion densities to photochemical model simulations, Journal of Geophysical Research-Planets, 117

Mandt, Kathleen E., Waite, J. Hunter, Jr., Teolis, Benjamin, Magee, Brian A., Bell, Jared, Westlake, Joseph H., Nixon, Conor A., Mousis, Olivier, Lunine, Jonathan I., (2012), THE C-12/C-13 RATIO ON TITAN FROM CASSINI INMS MEASUREMENTS AND IMPLICATIONS FOR THE EVOLUTION OF METHANE, Astrophysical Journal, 749

Westlake, J. H., Paranicas, C. P., Cravens, T. E., Luhmann, J. G., Mandt, K. E., Smith, H. T., Mitchell, D. G., Rymer, A. M., Perry, M. E., Waite, J. H., Jr., Wahlund, J. -E., (2012), The observed composition of ions outflowing from Titan, Geophysical Research Letters, 39

Westlake, J. H., Waite, J. H., Jr., Mandt, K. E., Carrasco, N., Bell, J. M., Magee, B. A., Wahlund, J. -E., (2012), Titan's ionospheric composition and structure: Photochemical modeling of Cassini INMS data, Journal of Geophysical Research-Planets, 117

Bell, Jared M., Bougher, Stephen W., Waite, J. Hunter, Jr., Ridley, Aaron J., Magee, Brian A., Mandt, Kathleen E., Westlake, Joseph, DeJong, Anna D., Bar-Nun, Akiva, Jacovi, Ronen, Toth, Gabor, De la Haye, Virginie, Gell, David, Fletcher, Gregory, (2011), Simulating the one-dimensional structure of Titan's upper atmosphere: 3. Mechanisms determining methane escape, Journal of Geophysical Research-Planets, 116

Bell, Jared M., Westlake, Joseph, Waite, J. Hunter, Jr., (2011), Simulating the time-dependent response of Titan's upper atmosphere to periods of magnetospheric forcing, Geophysical Research Letters, 38

Westlake, J. H., Bell, J. M., Waite, J. H., Jr., Johnson, R. E., Luhmann, J. G., Mandt, K. E., Magee, B. A., Rymer, A. M., (2011), Titan's thermospheric response to various plasma environments, Journal of Geophysical Research-Space Physics, 116

Bell, Jared M., Bougher, Stephen W., Waite, J. Hunter, Jr., Ridley, Aaron J., Magee, Brian A., Mandt, Kathleen E., Westlake, Joseph, DeJong, Anna D., Bar-Nun, Akiva, Jacovi, Ronen, Toth, Gabor, De La Haye, Virginie, (2010), Simulating the one-dimensional structure of Titan's upper atmosphere: 1. Formulation of the Titan Global Ionosphere-Thermosphere Model and benchmark simulations, Journal of Geophysical Research-Planets, 115

Bell, Jared M., Bougher, Stephen W., Waite, J. Hunter, Jr., Ridley, Aaron J., Magee, Brian A., Mandt, Kathleen E., Westlake, Joseph, DeJong, Anna D., De La Haye, Virginie, Bar-Nun, Akiva, Jacovi, Ronen, Toth, Gabor, Gell, David, Fletcher, Gregory, (2010), Simulating the one-dimensional structure of Titan's upper atmosphere: 2. Alternative scenarios for methane escape, Journal of Geophysical Research-Planets, 115

Teolis, B. D., Perry, M. E., Magee, B. A., Westlake, J., Waite, J. H., (2010), Detection and measurement of ice grains and gas distribution in the Enceladus plume by Cassini's Ion Neutral Mass Spectrometer, Journal of Geophysical Research-Space Physics, 115

Crary, F. J., Magee, B. A., Mandt, K., Waite, J. H., Jr., Westlake, J., Young, D. T., (2009), Heavy ions, temperatures and winds in Titan's ionosphere: Combined Cassini CAPS and INMS observations, Planetary and Space Science, 57, 1847-1856

Klesh, Andrew, Taniguchi, Shintaro, Burke, Caley, Cartwright, Megan, Gadre, Rajeev, Wang, Jiuguang, Horodyskyj, Lev, Milam, Keith, Moskovitz, Nicholas, Oiler, Jonathon, Pagano, Michael, Ostrowski, Daniel, Smith, Ramsey, Townsend-Small, Amy, Budney, Charles, U-Yen, Kongpop, Vance, Steve, Westlake, Joseph, Zacny, Kris, IEEE, (2009), SHOTPUT: A JPL Planetary Summer Science School Study, 2009 Ieee Aerospace Conference, Vols 1-7, 240-252

Magee, Brian A., Waite, J. Hunter, Mandt, Kathleen E., Westlake, Joseph, Bell, Jared, Gell, David A., (2009), INMS-derived composition of Titan's upper atmosphere: Analysis methods and model comparison, Planetary and Space Science, 57, 1895-1916

Waite, J. H., Jr., Lewis, W. S., Magee, B. A., Lunine, J. I., McKinnon, W. B., Glein, C. R., Mousis, O., Young, D. T., Brockwell, T., Westlake, J., Nguyen, M. -J., Teolis, B. D., Niemann, B., McNutt, R. L., Jr., Perry, M., Ip, W. -H., (2009), Liquid water on Enceladus from observations of ammonia and Ar-40 in the plume, Nature, 460, 487-490

Waite, J. H., Jr., Lewis, W. S., Magee, B. A., Lunine, J. I., McKinnon, W. B., Glein, C. R., Mousis, O., Young, D. T., Brockwell, T., Westlake, J., Nguyen, M. -J., Teolis, B. D., Niemann, H. B., McNutt, R. L., Jr., Perry, M., Ip, W. -H., (2009), Liquid water on Enceladus from observations of ammonia and Ar-40 in the plume (vol 460, pg 487, 2009), Nature, 460, 1164

Waite, J. H., Jr., Young, D. T., Westlake, J. H., Lunine, J. I., McKay, C. P., Lewis, W. S., Brown, RH, Lebreton, JP, Waite, JH, (2009), High-Altitude Production of Titan's Aerosols, Titan From Cassini-Huygens, 201-214

Allegrini, F., Ebert, R. W., Alquiza, J., Broiles, T., Dunn, C., McComas, D. J., Silva, I., Valek, P., Westlake, J., (2008), A mass analysis technique using coincidence measurements from the Interstellar Boundary Explorer-Hi (similar to 0.3-similar to 6 keV) detector, Review of Scientific Instruments, 79

Waite, J. H., Jr., Young, D. T., Coates, A. J., Crary, F. J., Magee, B. A., Mandt, K. E., Westlake, J. H., Kwok, S, Sandford, S, (2008), The source of heavy organics and aerosols in Titan's atmosphere, Iau: Organic Matter in Space, 4, 321-326

Waite, J. H., Jr., Young, D. T., Cravens, T. E., Coates, A. J., Crary, F. J., Magee, B., Westlake, J., (2007), The process of tholin formation in Titan's upper atmosphere, Science, 316, 870-875