A5044652774- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Tree-ring climate responses
- Pleistocene-Era Hominins and Archaeology
- Archaeological and Geological Studies
- Archaeology and ancient environmental studies
- Marine and coastal ecosystems
- Geological formations and processes
- Archaeological and Historical Studies
- Hydrocarbon exploration and reservoir analysis
- Methane Hydrates and Related Phenomena
- Microbial Community Ecology and Physiology
- Fire effects on ecosystems
- Protist diversity and phylogeny
- Paleontology and Stratigraphy of Fossils
- Groundwater and Isotope Geochemistry
- Climate change and permafrost
- Archaeology and Natural History
- Aquatic Ecosystems and Phytoplankton Dynamics
- Geomagnetism and Paleomagnetism Studies
- Cryospheric studies and observations
- Plant Water Relations and Carbon Dynamics
- Geological and Geophysical Studies Worldwide
- Marine and environmental studies
- Landslides and related hazards
National Museum of Nature and Science
2023
Scottish Universities Environmental Research Centre
2023
University of Glasgow
2014-2023
Scottish Enterprise
2023
John Brown University
2012-2014
Brown University
2008-2013
Los Alamos National Laboratory
2011
Northern Arizona University
2006-2008
Union College
2003
Our understanding of the present forest structure western North America hinges on our ability to determine antecedent conditions. Sedimentary records from lakes and bogs in southern Rocky Mountains Colorado New Mexico provide information relationships between climate vegetation change, fire history since deglaciation. We a new pollen record Hunters Lake (Colorado) as an example high-elevation Rockies. then series six sedimentary ~2600 3500-m elevation, including sites presently at...
Two primary methods for reconstructing paleofire occurrence include dendrochronological dating of fire scars and stand ages from live or dead trees (extending back centuries into the past) sedimentary records charcoal particles lakes bogs, providing perspectives on history that can extend many thousands years. Studies using both proxies have become more common in regions where are present frequencies low, but rare high-frequency surface fires dominate deposits primarily bogs wetlands. Here...
The transitional regions between the low and high latitudes of Northern Hemisphere are highly vulnerable to future climate change yet most current models usually diverge in their projections. To better understand dynamics these regions, reconstruction past hydrological fluctuations precipitation patterns is paramount importance accurately constrain present scenarios. In this study, we investigated paleohydrological western Mediterranean region, a zone low-mid Atlantic - realms. We...
The Last Glacial Termination is marked by changing environmental conditions affected abrupt and rapid climate oscillations, such as Heinrich Stadial 1 (HS1), which characterized extremely low sea surface temperatures (SST) significant changes in northern hemisphere terrestrial landscape (e.g., vegetation) human dispersion. Previous studies show that overall cold/dry occurred during HS1, but the lack of high-resolution records precludes whether was stable or instead instability. A...
Quantitative continental climate reconstructions covering the last glacial cycle from Iberian Peninsula are scarce. In order to fill this gap, we obtained for first time a high-resolution mean annual air temperature (MAAT) record based on distribution of specific bacterial membrane lipids (i.e., branched glycerol dialkyl tetraethers; brGDGTs) 36.0–4.7 kyr palaeolake recovered by Padul-15-05 sedimentary core (Padul, Sierra Nevada, southern Iberia). The fractional abundance three major groups...
Managed realignment, the landward relocation of primary flood defences, is increasingly recognised as a sustainable approach to mitigating tidal risk in estuaries. However, effectiveness realignment relative size and location intervention, relation estuary size, remains poorly understood. This knowledge gap critical, especially for urban estuaries where space large-scale, nature-based interventions limited. study explores scale-dependency managed using 2D TUFLOW hydraulic model Clyde...
Continuous sediment, charcoal and pollen records were developed from a- 4.5 m sediment core Little Molas Lake (LML), 3370 elevation, San Juan County, CO. LML formed by 11 200 cal. BP subsequent to glacial retreat. Turbated clay gyttja was derived in-lake productivity outwash sediments the drainage basin 1 until-10 BP. Cessation of input replacement tundra with Picea forest correlates termination Younger Dryas indicates warming. An increase in diploxylon (cf. P ponderosa), probably lower...
Research Article| January 01, 2011 A high-resolution record of climate, vegetation, and fire in the mixed conifer forest northern Colorado, USA Gonzalo Jiménez-Moreno; Jiménez-Moreno † 1Departamento de Estratigrafía y Paleontología, Universidad Granada, Fuente Nueva s/n, 18002, Spain2School Earth Sciences & Environmental Sustainability, Northern Arizona University, Flagstaff, 86011, USA3Department Planetary Sciences, Northrop Hall, University New Mexico, Albuquerque, Mexico 87131, †E-mail...