Brief Bio

I am an earth scientist with an interest in understanding how water and ice dynamically interact. My current work focuses on how changes in meltwater supply impact the spatial and temporal evolution of the subglacial hydrologic system under the Greenland Ice Sheet. 

Education

2015     Doctor of Philosophy
Jackson School of Geosciences, The University of Texas at Austin, Austin, Texas
Dissertation: Spatial and temporal evolution of the glacial hydrologic system of the Western Greenland Ice Sheet: Observational and remote sensing results
Advisor: Dr. Ginny A. Catania

2007     Bachelor of Arts with honors
Geology, Carleton College, Northfield, Minnesota
Thesis: A geochemical analysis of aluminum hydroxides and iron oxides, Little Backbone Creek, Shasta County, California
Advisor: Dr. Bereket Haileab
 

Positions/Employment

Publications

Refereed

Massoud, E. C., L. Andrews, R. Reichle, et al. A. Molod, J. Park, S. Ruehr, and M. Girotto. 2023. "Seasonal forecasting skill for the High Mountain Asia region in the Goddard Earth Observing System." Earth System Dynamics, 14 (1): 147-171 [10.5194/esd-14-147-2023]

Trunz, C., M. D. Covington, K. Poinar, et al. L. C. Andrews, J. Mejia, and J. Gulley. 2022. "Modeling the Influence of Moulin Shape on Subglacial Hydrology." Journal of Geophysical Research: Earth Surface, 127 (8): [10.1029/2022jf006674]

Andrews, L. C., K. Poinar, and C. Trunz. 2022. "Controls on Greenland moulin geometry and evolution from the Moulin Shape model." The Cryosphere, 16 (6): 2421-2448 [10.5194/tc-16-2421-2022]

Smith, L. C., L. C. Andrews, L. H. Pitcher, et al. B. T. Overstreet, Å. K. Rennermalm, M. G. Cooper, S. W. Cooley, J. C. Ryan, C. Miège, C. Kershner, and C. E. Simpson. 2021. "Supraglacial River Forcing of Subglacial Water Storage and Diurnal Ice Sheet Motion." Geophysical Research Letters, 48 (7): [10.1029/2020gl091418]

Poinar, K., and L. C. Andrews. 2021. "Challenges in predicting Greenland supraglacial lake drainages at the regional scale." The Cryosphere, 15 (3): 1455-1483 [10.5194/tc-15-1455-2021]

Cullather, R. I., L. C. Andrews, M. J. Croteau, et al. N. E. Digirolamo, D. K. Hall, Y.-K. Lim, B. D. Loomis, C. A. Shuman, and S. M. Nowicki. 2020. "Anomalous circulation in July 2019 resulting in mass loss on the Greenland ice sheet." Geophysical Research Letters, 47 (17): [10.1029/2020GL087263]

Molod, A. M., E. C. Hackert, Y. V. Vikhliaev, et al. B. Zhao, D. Barahona, G. Vernieres, A. Y. Borovikov, R. M. Kovach, J. Marshak, S. D. Schubert, Z. Li, Y.-K. Lim, L. C. Andrews, R. I. Cullather, R. D. Koster, D. Achuthavarier, J. Carton, L. Coy, J. Friere, K. Longo De Freitas, K. Nakada, and S. Pawson. 2020. "GEOS-S2S Version 2: The GMAO high resolution coupled model and assimilation system for seasonal prediction." Journal of Geophysical Research, 125 (5): [10.1029/2019JD031767]

Poinar, K., C. F. Dow, and L. C. Andrews. 2019. "Long‐Term Support of an Active Subglacial Hydrologic System in Southeast Greenland by Firn Aquifers." Geophysical Research Letters, 46: 4772-4781 [10.1029/2019GL082786]

Andrews, L. C., M. J. Hoffman, T. A. Neumann, et al. G. A. Catania, M. P. Lüthi, R. L. Hawley, K. M. Schild, C. Ryser, and B. F. Morriss. 2018. "Seasonal Evolution of the Subglacial Hydrologic System Modified by Supraglacial Lake Drainage in Western Greenland." Journal of Geophysical Research: Earth Surface, 123 (6): 1479-1496 [10.1029/2017jf004585]

Hoffman, M. J., M. Perego, L. C. Andrews, et al. S. F. Price, T. A. Neumann, J. V. Johnson, G. Catania, and M. P. Lüthi. 2018. "Widespread Moulin Formation During Supraglacial Lake Drainages in Greenland." Geophysical Research Letters, 45 (2): 778-788 [10.1002/2017gl075659]

Brunt, K. M., R. L. Hawley, E. R. Lutz, et al. M. Studinger, J. G. Sonntag, M. A. Hofton, L. C. Andrews, and T. A. Neumann. 2017. "Assessment of NASA airborne laser altimetry data using ground-based GPS data near Summit Station, Greenland." The Cryosphere, 11 (2): 681-692 [10.5194/tc-11-681-2017]

Hoffman, M. J., L. C. Andrews, S. Price, et al. G. A. Catania, T. A. Neumann, M. P. Lüthi, J. Gulley, C. Ryser, R. Hawley, and B. Morris. 2016. "Greenland subglacial drainage evolution regulated by weakly-connected regions of the bed." Nature Communications, 7: Article number: 1390 [10.1038/ncomms13903]

Lüthi, M. P., C. Ryser, L. C. Andrews, et al. G. A. Catania, M. Funk, R. L. Hawley, M. J. Hoffman, and T. A. Neumann. 2015. "Heat sources within the Greenland Ice Sheet: dissipation, temperate paleo-firn and cryo-hydrologic warming." The Cryosphere, 9 (1): 245-253 [10.5194/tc-9-245-2015]

Andrews, L. C., G. A. Catania, M. J. Hoffman, et al. J. D. Gulley, M. P. Lüthi, C. Ryser, R. L. Hawley, and T. A. Neumann. 2014. "Direct observations of evolving subglacial drainage beneath the Greenland Ice Sheet." Nature, 514 (7520): 80–83 [10.1038/nature13796]

Ryser, C., M. P. Lüthi, L. C. Andrews, et al. G. A. Catania, M. Funk, R. Hawley, M. Hoffman, and T. A. Neumann. 2014. "Caterpillar-like ice motion in the ablation zone of the Greenland ice sheet." Journal of Geophysical Research: Earth Surface, 119 (10): 2258-2271 [10.1002/2013jf003067]

Ryser, C., M. P. Lüthi, L. C. Andrews, et al. M. J. Hoffman, G. A. Catania, R. L. Hawley, T. A. Neumann, and S. S. Kristensen. 2014. "Sustained high basal motion of the Greenland ice sheet revealed by borehole deformation." Journal of Glaciology, 60 (222): 647-660 [10.3189/2014JoG13J196]

Röösli, C., F. Walter, S. Husen, et al. L. C. Andrews, M. P. Lüthi, G. A. Catania, and E. Kissling. 2014. "Sustained seismic tremors and icequakes detected in the ablation zone of the Greenland ice sheet." Journal of Glaciology, 60 (221): 563-575 [10.3189/2014jog13j210]

Morriss, B. F., R. L. Hawley, J. W. Chipman, et al. L. C. Andrews, G. A. Catania, M. J. Hoffman, M. P. Luthi, and T. A. Neumann. 2013. "A ten-year record of supraglacial lake evolution and rapid drainage in West Greenland using an automated processing algorithm for multispectral imagery." The Cryosphere, 7 (6): 1869-1877 [10.5194/tc-7-1869-2013]

Hoffman, M. J., G. A. Catania, T. A. Neumann, L. C. Andrews, and J. A. Rumrill. 2011. "Links between acceleration, melting, and supraglacial lake drainage of the western Greenland Ice Sheet." Journal of Geophysical Research, 116 (F4): F04035 [10.1029/2010jf001934]

Non-Refereed

Andrews, L. C. 2019. "Methane beneath Greenland’s ice sheet is being released." Nature 565 (7737): 31-32 [10.1038/d41586-018-07762-7]

Other Professional Information

Recent Conference Participation

Andrews, L. C., Cullather R. I., Nowicki, S. A., Carton, J. (2019), Numerical Reanalyses as a Gateway to Arctic Synthesis. Abstract presented at Arctic Futures 2050, Washington, DC, 4–6 Sept.

Andrews, L. C. & Poinar, K. (2019), A physical model of moulin formation and evolution, Abstract 80A2950 presented at IGS Symposium on Glacial Erosion and Sedimentation, Madison, WI, 12–17 May.

Andrews, L.C., Cullather, R.I. Molod, A. (2018). The Role of Atmospheric Teleconnections and Local Forcings in Predicting Greenland Ice Sheet Surface Mass Loss. Abstract GC53A-06 presented at 2018 AGU Fall Meeting, Washington, D.C., 10-14 Dec.

Cavanaugh, J., Andrews, L.C., Lampkin, D.J., Zwally, J.H. (2018). 20-year evolution of high elevation ice sheet runoff – motion relationship in the Pâkitsoq region of Western Greenland. Abstract C51G-1137 presented at 2018 AGU Fall Meeting, Washington, D.C., 10-14 Dec.

Poinar, K., Andrews, L.C., Meyer, C.R., Brunt,K.M. (2018). Do closely spaced crevasses in Greenland connect englacially to reach the bed? Abstract C51G-1141 presented at 2018 AGU Fall Meeting, Washington, D.C., 10-14 Dec.

Stock, J., Poinar, K., Andrews, L.C. (2018). Predicting crevasse and moulin formation through analytic modeling. Abstract C51G-1148
presented at 2018 AGU Fall Meeting, Washington, D.C., 10-14 Dec.

Molod, A.M. et al. (2018). The Impact on Seasonal Forecasts of GMAO's Higher Resolution Seasonal Prediction and Data Assimilation System. Abstract OS41F-2087 presented at 2018 AGU Fall Meeting, Washington, D.C., 10-14 Dec.

Pawson, S. et al. (2018). The Stratospheric Warming of 2018 in the context of the Earth System. Presented at the Stratosphere-troposphere Processes And their Role in Climate (SPARC) 2018 General Assembly, Kyoto, Japan, 1-5 Oct.
 

Invited Talks

2017   Department of Earth Sciences, Dartmouth College
           The role of hydraulic connectivity in subglacial drainage evolution beneath the GrIS
2016   Department of Geology and Geophysics, University of Wisconsin Madison
           Subglacial drainage evolution beneath the Greenland Ice Sheet regulated by weakly- connected regions of the bed
2016   Department of Geology and Geophysics, University of Wisconsin Madison
           Spatiotemporal variation in ice velocity and subglacial hydrology in the ablation zone of the Western Greenland Ice Sheet
2016   Cryospheric Sciences Laboratory, NASA Goddard Space Flight Center
           Subglacial hydrology and ice motion of the Greenland Ice Sheet
2014   Jackson School of Geosciences Technical Sessions
           Spatiotemporal evolution of the subglacial hydrologic system beneath the GrIS
2014   Austin Center for Inquiry
           Monitoring the Greenland Ice Sheet: Why and how we study its plumbing
2014   Austin Gem and Mineral Society
           Physical controls on outlet glacier variability in Central Western Greenland: Fieldwork and photos from summer 2013
2012   Institute for Geophysics, University of Texas at Austin
           Subglacial channel evolution observed in western Greenland from moulin water level and GPS-derived ice surface velocities
2010   Institute for Geophysics, University of Texas at Austin
           A physical model of ice sheet response to changes in subglacial hydrology
 

Awards

AGU Outstanding Reviewer, 2016
NASA Postdoctoral Fellowship, NASA GSFC, 2016
Best PhD Technical Presentation, Jackson School of Geosciences, 2015
Gale White Fellowship, Institute for Geophysics, 2012
Devon Energy Corp. Fellowship, Jackson School of Geosciences, 2012
Ronald K. DeFord Field Scholarship, Jackson School of Geosciences, 2012
Ewing/Worzel Fellowship, Institute for Geophysics, UT Austin, 2010
Magna Cum Laude, Carleton College, 2007
Distinction in the Senior Integrative Exercise, Carleton College, 2007
 

Professional Service

Reviewer, Nature, Remote Sensing, Nature Communications, Journal of Geophysical Research: Earth Surface, Geophysical Research Letters, Annals of Glaciology, NASA Cryospheric Sciences, IPCC Special Report on Ocean and Cryosphere in a Changing Climate
 

Chair, NASA GSFC Code 600 Science Director’s Committee, 2018
Vice chair, NASA GSFC Code 600 Science Director’s Committee, 2017
AGU Session Co-chair, 2015, 2016, 2019
NASA GSFC Young Scientists Forum Co-chair, 2016, 2017, 2018, 2019

Professional Societies