Carrie Morrill - CV

RESEARCH FOCUS :

The goal of my research is to understand the causes and impacts of past climate change, and to use this information to anticipate future changes and their consequences. To accomplish this, I use lake sediments to document how climate varied in the past and coupled climate models to explore why these variations occurred. My current projects are focused on major changes during the Holocene (our present interglacial period) that happened relatively abruptly, over periods of decades to a century. These projects include: modeling the global impacts of freshwater anomalies in the North Atlantic and mapping the spatial extent of climate changes during the middle Holocene that possibly coincided with the collapse of several ancient civilizations.

EDUCATION :

EMPLOYMENT :

HONORS and AWARDS :

• NCAR Advanced Study Program Postdoctoral Fellowship, 2002
• Geological Society of America Outstanding Student Research Proposal Award, 2001
• NASA Space Grant Outreach Fellowship, 2000-2002
• National Science Foundation Earth Systems History Fellowship, 1999
• National Science Foundation Graduate Fellowship, 1997-2000
• University of California Regents Graduate Fellowship, 1996-1997
• B.A. summa cum laude, Distinction in Geology, Phi Beta Kappa, Sigma Xi, 1996

PROFESSIONAL MEMBERSHIPS :

• American Geophysical Union
• American Quaternary Society

PUBLICATIONS :

• Sun, Y., Clemens, S.C., Morrill, C., Lin, X., Wang, X. and An, Z. in press. Influence of Atlantic meridional overturning circulation on the East Asian winter monsoon. Nature Geoscience.
• Jin, L., Chen, F., Morrill, C., Otto-Bliesner, B.L. and Rosenbloom, N. in press. Causes of Early Holocene desertification in arid central Asia. Climate Dynamics.
• Anderson, D.M., Bauer, B.A., Buckner, C.R., Gille, E., Gross, W.S., Hartman, M., Morrill, C., Shah, A.M. and Wahl, E.R. in press. Web 2.0 collaborations address uncertainty in climate reconstructions of the past millennium. Earth Science Informatics.
• Morrill, C., Wagner, A.J., Otto-Bliesner, B.L. and Rosenbloom, N. 2011. Evidence for significant climate impacts in monsoonal Asia at 8.2 ka from multiple proxies and model simulations. Journal of Earth Environment 2: 426-441.
• * Li, Y. and Morrill, C. 2010. Multiple factors causing Holocene lake level change in monsoonal and arid central Asia as identified by model experiments. Climate Dynamics 35:1119-1132.
• * Li, Y., Wang, N., Morrill, C., Cheng, H., Long, H. and Zhao, Q. 2009. Environmental change implied by the relationship between pollen assemblages and grain-size in N.W. Chinese lake sediments since the Late Glacial. Review of Palynology and Palaeobotany 154: 54-64.
• Hu, A., Otto-Bliesner, B.L., Meehl, G.A., Han, W., Morrill, C., Brady, E.C. and Briegleb, B. 2008. A comparison of thermohaline circulation response to freshwater forcing under present day and LGM conditions. Journal of Climate 21: 2239-2258.
• Shen, C., Liu, K-B., Morrill, C., Overpeck, J.T., Peng, J. and Tang, L. 2008. Meadow-steppe ecotone shift and major centennial-scale droughts during the mid-late Holocene in the central Tibetan plateau. Ecology 89: 1079-1088.
• Morrill, C., Overpeck, J. T., Cole, J. E., Liu, K-B., Shen, C. and Tang, L. 2006. Holocene variations in the Asian monsoon inferred from the geochemistry of lake sediments in central Tibet. Quaternary Research 65: 232-243.
• Morrill, C. and Jacobsen, R.M. 2005. How widespread were climate anomalies 8200 years ago? Geophysical Research Letters 32: 10.1029/2005GL023536.
• Overpeck, J., Liu, K., Morrill, C., Cole, J., Shen, C., Anderson, D., and Tang, L. 2005. Holocene environmental change in the Himalayan-Tibetan Plateau region: lake sediments and the future, in Huber, U. M., Bugmann, H. K. M. and Reasoner, M. A. (Eds), Global Change and Mountain Regions: A State of Knowledge Overview. Dordrecht, Kluwer Academic Publishers, p. 83-92.
• Morrill, C. 2004. The influence of Asian monsoon variability on the water balance of a Tibetan lake. Journal of Paleolimnology 32: 273-286.
• Morrill, C., Overpeck, J. T. and Cole, J. E. 2003. A synthesis of abrupt changes in the Asian summer monsoon since the last deglaciation. The Holocene 13: 465-476.
• Morrill, C. and Koch, P. L. 2002. Elevation or Alteration? Evaluation of isotopic constraints on paleoaltitude surrounding the Eocene Green River Basin. Geology 30: 151-154.
• Morrill, C., Small, E. E. and Sloan, L. C. 2001. Modeling orbital forcing of lake level change: Lake Gosiute (Eocene), North America. Global and Planetary Change 29: 57-76.
• Wold, C. N., Schwartz, G. J. and Morrill, C. 1999. Digitized database of modern evaporites and their predicted distribution based on results from an atmospheric general circulation simulation, in Harff, J., Lemke, W. and Stattegger, K. (Eds), Computerized Modeling of Sedimentary Systems. New York, Springer Verlag, p. 149-168.
• Sloan, L. C. and Morrill, C. 1998. Orbital forcing and Eocene continental temperatures. Palaeogeography, Palaeoclimatology, Palaeoecology 144: 21-35.

• Wahl, E.R. and Morrill, C. 2010. Toward understanding and predicting monsoon patterns. Science 328: 437-438.
• Delworth, T.L., Clark, P., Holland, M., Johns, B., Kuhlbrodt, T., Lynch-Stieglitz, J., Morrill, C., Seager, R., and Weaver, A. 2008. The potential for abrupt climate change in the Atlantic meridional overturning circulation. Climate Change Science Program Synthesis and Assessment Product 3.4.

PRESENTATIONS :

• * Lowry, D.P. and Morrill, C. Changes in the global hydrologic cycle: Lessons from Modeling Lake Levels at the Last Glacial Maximum. American Geophysical Union Fall Meeting, San Francisco, December 5-9, 2011.
• * Wagner, A.J., Morrill, C., Otto-Bliesner, B.L., Rosenbloom, N. and Watkins, K.R. The collapse of the Laurentide Ice Sheet and its role in the 8.2 ka event: Evidence from CCSM3 simulations and paleo-proxy records. American Geophysical Union Fall Meeting, San Francisco, December 5-9, 2011.
• Morrill, C., Katz, R.W. and Atkinson, D. Patterns of abrupt ecosystem change through the Holocene. American Geophysical Union Fall Meeting, San Francisco, December 13-17, 2010.
• * Burger, M., Wagner, A.J., Morrill, C. and Otto-Bliesner, B.L. The effects of the 8.2 ka event on the ITCZ in the Tropical Atlantic. American Geophysical Union Fall Meeting, San Francisco, December 13-17, 2010.
• Morrill, C. and Wagner, A.J. An updated synthesis of climate changes at 8.2 ka inferred from proxy records. PMIP3 (Paleoclimate Modelling Intercomparison Project 3) Workshop, Kyoto, Japan, December 6-10, 2010.
• * Wagner, A.J., Morrill, C., Otto-Bliesner, B.L. and Rosenbloom, N. Did the Lake Agassiz flood cause the 8.2 ka event? Evidence from CCSM3 model simulations and paleo-proxy records. PMIP3 (Paleoclimate Modeling Intercomparison Project 3) Workshop, Kyoto, Japan, December 6-10, 2010.
• Morrill, C., Wagner, A. and Otto-Bliesner, B.L. The North Atlantic as a source of abrupt climate change in Asia. 8th Internationl Symposium on Environmental Processes of East Eurasia, Kunming, China, November 7-13, 2010.
• * Watkins, K., Wagner, A. and Morrill, C. Proxy-model comparisons of North Atlantic sea surface conditions prior to the 8.2 ka event. American Meteorological Society Annual Meeting, Atlanta, Georgia, January 18-21, 2010.
• Morrill, C., Wagner, A., Otto-Bliesner, B. and Rosenbloom, N. Assessing model sensitivity to North Atlantic freshwater perturbations using past abrupt climate events. American Meteorological Society Annual Meeting, Atlanta, Georgia, January 18-21, 2010.
• Morrill, C. and Li, Y. Unraveling the climatic causes of past lake level change using lake energy and water balance models. American Geophysical Union Fall Meeting, San Francisco, December 14-18, 2009.
• Morrill, C. Gradual vs. Rapid Change in the Sahara. Past Global Changes (PAGES) Third Open Science Meeting, Corvallis, Oregon, July 8-11, 2009.
• Morrill, C. Statistical detection of mid-Holocene abrupt climate changes from proxy records. American Geophysical Union Chapman Conference on Abrupt Climate Change, Columbus, Ohio, June 15-19, 2009.
• Morrill, C. Statistical detection of mid-Holocene abrupt climate changes from proxy records. American Geophysical Union Fall Meeting, San Francisco, December 15-19, 2008.
• Morrill, C. Timing and spatial extent of mid-Holocene abrupt climate change. Paleoclimate Modelling Intercomparison Project (PMIP2) Workshop, Estes Park, Colorado, September 15-19, 2008.
• Morrill, C., Pingree, K., Brady, E.C. and Otto-Bliesner, B.L. Different strengths of the bipolar see-saw during glacial and interglacial times. American Geophysical Union Fall Meeting, San Francisco, December 10-14, 2007.
• Morrill, C., Otto-Bliesner, B., Brady, E. and Briegleb, B. Sea ice feedbacks as a cause of past abrupt climate change in Greenland. ESF Conference on "Ocean Controls on Abrupt Climate Change", Obergurgl, Austria, May 19-24, 2007.
• Morrill, C. Timing and spatial extent of mid-Holocene abrupt climate change. 23rd Pacific Climate Workshop, Pacific Grove, California, May 13-16, 2007.
• Morrill, C. and Otto-Bliesner, B. The response of the Indian monsoon to North Atlantic freshwater forcing. American Geophysical Union Fall Meeting, San Francisco, December 11-15, 2006.
• Morrill, C., Brady, E., Otto-Bliesner, B. and Briegleb, B. The effect of climate base state on abrupt climate recovery in North Atlantic freshwater hosing experiments. Rapid Climate Change International Science Conference, Birmingham, United Kingdom, October 24-27, 2006.
• Morrill, C., Brady, E.C., Otto-Bliesner, B.L. and Briegleb, B. Causes of abrupt climate recovery following North Atlantic freshwater forcing. 36th AMQUA Biennial Meeting, Bozeman, Montana, August 18-20, 2006.

SERVICE :

• Reviewer for Nature, Science, Geophysical Research Letters, Geology, Journal of Climate, Climate Dynamics, Quaternary Science Reviews, Quaternary Research, Paleoceanography, Earth and Planetary Science Letters, Quaternary International, Chemical Geology, Water Resources Research, Climate Research, Journal of Paleolimnology, The Holocene, Weather Climate and Society, Climatic Change Letters, Climate of the Past, Nature Education, National Science Foundation
• Councilor for Paleoclimatology (elected position), American Quaternary Association, 2006-2010
• Paleoclimate Modelling Intercomparison Project (PMIP 3) Subcommittee on 8.2 ka simulation intercomparisons, 2008-present
• Co-convener, AGU special sessions on "Paleo Evidence of the Earth System during the last 100 years" (Fall 2011), "North Atlantic Freshwater Forcing: History, Consequences and Implications for Future Climate Change" (Fall 2008), "Climate Impacts of Changes to the Thermohaline Circulation" (Fall 2005), and "Rapid Climate Change during the Holocene and last Glacial" (Fall 2003)
• Committee member, AGU Outstanding Student Paper Awards, 2004-2006
• Panel member, Dissertations Initiative for the Advancement of Climate Change Research (DISCCRS) participant selection, 2005
• Co-organizer, NCAR Advanced Study Program Thompson Lecture and NCAR Early-Career Scientist Assembly Third Scientific Leaders Forum, 2003-2004
• Content reviewer for Biological Sciences Curriculum Study textbook "BSCS Science: An Inquiry Approach", 2006-2010
• Guest instructor/presenter at NCAR Research Experience for Teachers workshop (2011), Cutting Edge workshop on "Teaching Climate Change with Ice Core Data" (2008), Sally Ride Science Festival (2008), NCAR Undergraduate Leadership Workshop (2008), University of Denver (2007), NCAR Climate and Global Change Geoscience Education Workshop (2004)
• Science reviewer, Digital Library for Earth Science Education (DLESE) Climate Change Collection, 2004

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