Natalie M. Kehrwald, PhD
Dr. Natalie Kehrwald is a Research Geologist who investigates interactions between drought, fire, and human activity across multiple regions and timescales with the aim of providing information to land managers, communities, and the public. Understanding the conditions leading to past fires and droughts is important for planning for future scenarios in both wildland and urban settings.
Dr. Kehrwald studies interactions between water availability, fire and humans using biomarkers in ice cores and sedimentary records. Droughts and vegetation changes can affect fuel availability, and changing atmospheric conditions can alter the number of natural fire ignitions through lightning strikes. Humans are particularly adept at setting fires both for survival (cooking, warmth, and land clearance) but also often accidentally ignite wildfires. Records such as lake cores and ice cores provide detailed records of fire activity, variations in precipitation, changing vegetation and human activity through time, and help place recent droughts and wildfires into the context of a longer timescale.
See the Fire In Ice Data Visualizations created in collaboration with the USGS Vizlab under the Web Tools tab below.
Professional Experience
Research Geologist, Geosciences and Environmental Change Science Center, USGS, Denver, Colorado, 2015-present
Research Scientist, Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, Italy, 2011-2015
Marie Sklowdowska Curie Individual International Incoming Post-Doctoral Fellow, Italian National Research Council (CNR), Italy, 2009-2011
Visiting Assistant Professor, Geology Department, Colorado College, 2009
U.S. Peace Corps, Environmental Engineer, Bolivia 1999-2001
Education and Certifications
PhD, Earth Sciences, The Ohio State University
MS, Geosciences, University of Massachusetts, Amherst
BA, Environmental Science/Geology, Colorado College
Science and Products
Anthropogenic impact in the Mayan Lowlands of Petén, Guatemala, during the last 5500 years Anthropogenic impact in the Mayan Lowlands of Petén, Guatemala, during the last 5500 years
Prospects for reconstructing paleoenvironmental conditions from organic compounds in polar snow and ice Prospects for reconstructing paleoenvironmental conditions from organic compounds in polar snow and ice
One thousand years of fires: Integrating proxy and model data One thousand years of fires: Integrating proxy and model data
Fire in the Earth System: Bridging data and modeling research Fire in the Earth System: Bridging data and modeling research
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Anthropogenic impact in the Mayan Lowlands of Petén, Guatemala, during the last 5500 years Anthropogenic impact in the Mayan Lowlands of Petén, Guatemala, during the last 5500 years
Prospects for reconstructing paleoenvironmental conditions from organic compounds in polar snow and ice Prospects for reconstructing paleoenvironmental conditions from organic compounds in polar snow and ice
One thousand years of fires: Integrating proxy and model data One thousand years of fires: Integrating proxy and model data
Fire in the Earth System: Bridging data and modeling research Fire in the Earth System: Bridging data and modeling research
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.