Part-time Instructional, Geology & Geological Eng
- Geomorphology, Earth Surface Processes, Sedimentology, Landscape Evolution and Environmental Change, Quaternary Environments and Climate Change
Dr. Risa Madoff received a PhD in Geology (UND, 2015) and a MS in Geology (New Mexico State University, 2003). She has been a part-time instructor in the Harold Hamm School of Geology and Geological Engineering (HHSGGE) since 2015. Areas of expertise lie in Geomorphology, Climate and Sedimentology.
In her field of expertise, Risa is interested in modeling the effects of climate and climate change on Earth surface processes. Understanding and predicting how natural physical processes will respond to recent changes in the environment is of fundamental importance to everyone worldwide. She applies various time scales in numerical modeling to improve understanding of feedbacks, magnitudes, and frequencies of those responses. Through combined field and laboratory techniques, published data, erosion rates, sediment transport, and sedimentology are assessed to acquire modeling parameters. She stays on top of newly developing areas in the Earth Sciences, such as Critical Zone Science, Permafrost research, and community-based modeling systems for landscape evolution, as well as traditional areas that integrate geomorphology, sedimentation, and tectonics.
Links to recent media coverage:
Geomorphology, Sedimentology, and Landscape Evolution
Hillslope processes, sediment transport and mass movements (mixed granular flow, regolith erosion rates, soil creep, landsliding), surface process and feedbacks with exogenic and endogenic controls, Quaternary climate change, effects of global environmental change on surface processes around the world
Field techniques to quantify surface change
Terrestrial laser scanning (TLS) (LiDAR - Light Detection and Ranging)
Sediment transport marking and tracking
Repeat photos and repeat laser scanning
Rudberg pillars (soil creep measures)
Numerical modeling and analysis
MATLAB and Excel; application of global climate model output, climate proxy data, and specifically data from TRaCE simulations
Madoff, R.D., Putkonen, J., 2016, Climate and hillslope degradation vary in concert; 85 ka to present, eastern Sierra Nevada, CA, USA, Geomorphology, v. 266, p. 33-40.
Mack, G.H., Madoff, R.D., 2005, A test of models of fluvial architecture and paleosol development: Camp Rice Formation (Upper Pliocene-Lower Pleistocene), southern Rio Grande rift, New Mexico, USA, Sedimentology, v. 52, no.1, p. 191-211.
Recent Research Abstracts and Presentations
Madoff, R.D. and Putkonen, J., 2018, Grain size distribution dictates the effect of climate on hillslope erosion [EP52B-07] AGU Fall Meeting, Washington, D.C., 10-14 Dec. (Oral)
Madoff, R.D. and Putkonen, J., 2017, Accounting for temporal complexity when modeling erosion and sediment transport in evolving landscapes, Geological Society of America Abstracts with Programs. vol. 49, No. 6 doi: 10.1130/abs/2017AM-308362. (Poster)
Madoff, R.D. and Putkonen, J., 2017, Can we measure the effect of climate on erosion rates? Proceedings of the North Dakota Academy of Science 109th Annual Meeting, v. 71, p. 56. (Oral)
Madoff, R.D. and Putkonen, J., 2016, Climate and regolith erosion rates vary in concert in the eastern Sierra Nevada Mountains, CA, USA for 85 ka: EP53C-0964; AGU Fall Meeting, San Francisco, CA, Dec. 12-16. (Poster)
Madoff, R.D. and Putkonen, J., 2014, The effect of past climate change on regolith erosion rates for the past 100 ka in the eastern Sierra Nevada, CA, USA: EP21C-3546; AGU Fall Meeting, San Francisco, CA, Dec. 19-22. (Poster)
Madoff, R.D. and Putkonen, J., 2013, Annual sediment transport and landform degradation of Mono Basin and Tahoe Moraines in the eastern Sierra Nevada Mountains, CA: GSA Abstracts with Programs, vol. 45, no. 7, p.145. (Poster)
Putkonen, J., Madoff, R.D, and Morgan, D.J, 2012, Do moraines degrade, what evidence do we have?: GSA Abstracts with Programs, vol. 44, no. 7, p. 461.
Madoff, R.D. and Putkonen, J., 2011, Landform degradation in high resolution: using terrestrial LiDAR to measure erosion rates of moraines in the eastern Sierra Nevada Mountains: GSA Abstracts with Programs, vol. 43, no. 5, p. 248. (Poster)
Putkonen, J., Madoff, R.D., Giusti, C., Grady, C., Miller, M., 2011, Degradation of regolith surfaces in the annual and 100 kyr time scales, Mono Basin, CA: GSA Abstracts with Programs, vol. 43, no. 5, p. 510.
PhD, Geology, University of North Dakota
MS, Geology, New Mexico State University
BS, Geography, New Mexico State University