A5049708459- Geology and Paleoclimatology Research
- Tree-ring climate responses
- Isotope Analysis in Ecology
- Fire effects on ecosystems
- Environmental and Cultural Studies in Latin America and Beyond
- Aquatic and Environmental Studies
- Groundwater and Isotope Geochemistry
- Pacific and Southeast Asian Studies
- Hydrology and Watershed Management Studies
- Geological and Tectonic Studies in Latin America
- Geological formations and processes
- Advanced Data Processing Techniques
- Water Quality Monitoring and Analysis
- Coastal wetland ecosystem dynamics
- Archaeology and ancient environmental studies
- Geological Studies and Exploration
- Climate variability and models
University of Minnesota, Duluth
2020-2024
Twin Cities Orthopedics
2023-2024
University of Minnesota
2023-2024
Universidad de Los Andes
2019
Global warming has its largest amplitude in the higher latitude regions of Northern Hemisphere. This is especially case during winter months when reduced reflectivity from diminished snow cover leads to average temperatures. process led at twice rate as rest planet. In addition accelerated local melt, this Arctic contributing strong over Minnesota, winter, Minnesota one states that strongest within contiguous United States. We have previously emphasized our study on high-resolution climate...
Abstract We use an ensemble of simulations a coupled model (NCAR Community Earth System Model) driven by natural radiative forcing estimates over the pre‐industrial past millennium to test efficacy methods designed remove forced variability from proxy‐based climate reconstructions and estimate residual internal (e.g., putative “Atlantic Multidecadal Oscillation”). Within framework these experiments, component surface temperature change can be estimated accurately mean, each independent...
Uncertainty about the influence of anthropogenic radiative forcing on position and strength convective rainfall in Intertropical Convergence Zone (ITCZ) inhibits our ability to project future tropical hydroclimate change a warmer world. Paleoclimatic modeling data inform timescales mechanisms ITCZ variability; yet comprehensive, long-term perspective remains elusive. Here, we quantify evolution neotropical over preindustrial past millennium (850 1850 CE) using synthesis 48 paleo-records,...
Abstract We present oxygen isotope and charcoal accumulation records from two lakes in eastern Washington that have sufficient temporal resolution to quantitatively compare with tree‐ring meteorological data. Hydroclimate reconstructions tree‐rings lake sediments show close correspondence after accounting for seasonal‐ centennial‐ scale sensitivities. Carbonate δ 18 O measurements Castor Round reveal the Medieval Climate Anomaly (MCA) experienced wetter November‐March conditions than Little...