Ryan Lucas
Ph.D Student; Environmental Systems; School of Engineering
UC Merced - University of California, Merced
My research interests include hydrologic processes in meadows of the Sierra Nevada and the role played in catch basin hydrology. I am especially interested in the connection of adjacent hillslope sub-surface processes to the meadow water tables and the meadow sub-surface process connections to down gradient streamflow.
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CZO Publications
Papers/Books
2016
Polymictic pool behaviour in a montane meadow, Sierra Nevada, CA. Lucas, R. G., Suárez, F., Tyler, S. W., Moran, J. E., and Conklin, M. H. (2016): Hydrological process. DOI: 10.1002/hyp.10834
2016
Polymictic pool behavior in a montane meadow, Sierra Nevada, CA. Lucas, R.G., Suárez, F. Tyler, S.W., Moran, J.E., Conklin, M.H. (2016): Hydologic Processes
2014
Snowmelt timing alters shallow but not deep soil moisture in the Sierra Nevada . Blankinship, J.C., Meadows, M.W., Lucas, R.G., and Hart, S.C. (2014): Water Resources Research.
2014
LiDAR-derived snowpack data sets from mixed conifer forests across the Western United States. Harpold, A.A., Q. Guo, N. Molotch, P. D. Brooks, R. Bales, J.C. Fernandez-Diaz, K.N. Musselman, and T.L. Swetnam, P. Kirchner, M. Meadows, J. Flanagan, R. Lucas (2014): Water Resources Research 50(3): 2749-2755 Cross-CZO
Papers and books that explicitly acknowledge a CZO grant are highlighted in PALE ORANGE.
Other CZO Publications
2016
Evaporation and groundwater patterns in montane meadows of the Sierra Nevada, CA. Lucas, R.G. (2016): University of California, Merced
2015
Montane meadow evapotranspiration: implications for restoration and impacts on downstream flow. Lucas, R., Conklin, M., Goulden, M. (2015): H11E Interacting Physical and Ecological Processes across Terrestrial and Aquatic Systems I Posters, presented at 2015 Fall Meeting, AGU, San Francisco, CA, 14-18 Dec.
2015
Montane meadow evaportanspiration: implications for restoration and impacts on downstream flow. Lucas, R., Conklin, M., Goulden, M. (2015): . American Geophysical Union Fall Meeting. San Francisco, CA.
2014
Determination of specific yield of montane meadow soils, Sierra Nevada, CA. R. Lucas; M. Conklin; R. Rice; T. Ghezzehei (2014): American Geophysical Union, Fall Meeting 2014, abstract #H53B-0852
2013
Polymictic pool behavior in a montane meadow, Sierra Nevada, CA. Lucas, R. G. (2013): UC Merced M.Sc. Thesis
2013
Montane meadows and hydrologic connections between forests and streams in the Sierra Nevada, California. Lucas, R.G., and M.H. Conklin (2013): American Geophysical Union, Fall Meeting 2013, abstract #H43K-01
2013
Timber harvest effect on soil moisture in the southern Sierra Nevada: Is there a measurable impact?. Meadows, M.W., R.C. Bales, M.H. Conklin, M. Goulden, P.C. Hartsough, J.W. Hopmans, C.T. Hunsaker, R.G. Lucas and A.I. Malazian (2013): American Geophysical Union, Fall Meeting 2013, abstract #H11B-1165
2012
Groundwater-surface water interactions in montane meadows of the Sierra Nevada, California. Lucas, R., Conklin, M. (2012): Fall meeting, American Geophysical Union, December 2012. Abstract H13D-1381.
2011
Hillslope and stream connections to water tables in montane meadows of the southern Sierra Nevada, California . Conklin, M.H., Lucas, R.G. (2011): Fall meeting, American Geophysical Union, December 2011. Abstract H43N-07.
2011
Effects of evapotranspiration heterogeneity on catchment water balance in the Southern Sierra Nevada of California. Kerkez, B., Kelly, A.E., Lucas, R.G., Son, K., Glaser, S.D., Bales, R.C. (2011): Fall meeting, American Geophysical Union, December 2011, Room 2004, 9:15 AM - 9:30 AM. Abstract B41H-06.
2011
Physical and biogeochemical controls on polymictic behavior in Sierra Nevada stream pools. Lucas, R.G., Conklin, M.H., Tyler, S.W., Suarez, F.I., Moran, J.E., Esser, B.K. (2011): Fall meeting, American Geophysical Union, December 2011, Halls A-C, 8:00 AM. Abstract H51B-1209.
2010
Spatial and temporal variations of evapotranspiration signals in Long Meadow, Sequioa National Park, California . Conklin, M.H., Lucas, R.G. (2010): Fall meeting, American Geophysical Union, December 2010. Abstract H32C-03.
2010
Polymictic pool behavior in Sierra Nevada Streams. Lucas, R.G., Conklin, M.H., Tyler, S.W., Suarez, F.I., Moran, J.E., Esser, B.K. (2010): Fall meeting, American Geophysical Union, December 2010. Abstract H21B-1046.
2010
Comparing plot-scale sensor measurements to the watershed level: a comprehensive case study of snow depth and soil moisture in the southern Sierra Nevada, California. Meadows, M.W., Kerkez, B., Hartsough, P.C., Lucas, R.G., Bales, R.C., Hopmans, J.W., Glaser, S.D. (2010): Fall meeting, American Geophysical Union, December 2010. Abstract C13C-03.
2010
Development of an integrated information system for Critical Zone Observatory data . Whitenack, T , Williams, M W, Tarboton, D G, Zaslavsky, I, Durcik, M, Lucas, R G, Dow, C, Meng, X, Bills, B, Leon, M, Yang, C, Arnold, M, Aufdenkampe, A K, Schreuders, K, Alvarez, O. (2010): Fall Meeting, American Geophysical Union. December 2010. Abstract IN31B-1289 Cross-CZO National
2009
Seasonal transitions in water and moisture patterns in a mountain meadow, Southern Sierra Nevada (Invited) . Conklin, M.H., Crook, N.P., Kirchner, P.B., Lucas, R.G. (2009): Fall meeting, American Geophysical Union, December 2009. 90(52). Abstract H41H-01.
2008
"Hydroclimate, ecosystem links & the Southern Sierra Critical Zone Observatory. Bales, R; Hunsaker, C; Kirchner, P; Conklin, M; Lucas, R. (2008): Southern Sierra Science Symposium
2008
Investigating Meadow Hydrology and Hyporeic Exchange. Lucas, R., Conklin, M., Tyler, S., Esser, B. (2008): Fall meeting, American Geophysical Union, December 2008. 89(53). Abstract H21L-06.
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News
UCTV: Southern Sierra CZO researchers featured on Sustainable California channel
21 Jun 2017 - University of California Television (UCTV) features Bales, Conklin, Glaser, Safeeq, and others on the new Sustainable California channel
Hands-on learning exercises available from CZOs
10 Jun 2014 - CZO and AGI create succinct exercises for secondary education classrooms. The exercises are based on CZO data and were distributed to 16,000 teachers
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Events
Sierran Montane Meadows; Conklin
Montane meadows as a window into groundwater processes in Sierra Nevada Catchments
CCC Rm 207, Denver. CO.
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