A5056746608- Geology and Paleoclimatology Research
- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Paleontology and Stratigraphy of Fossils
- Meteorological Phenomena and Simulations
- Methane Hydrates and Related Phenomena
- Climate change and permafrost
- Hydrocarbon exploration and reservoir analysis
- Planetary Science and Exploration
- Atmospheric chemistry and aerosols
- Geological formations and processes
- Isotope Analysis in Ecology
- Atmospheric aerosols and clouds
- Tree-ring climate responses
- Geological Studies and Exploration
- Aeolian processes and effects
- Geological and Geophysical Studies
- Cryospheric studies and observations
- Astro and Planetary Science
- Plant Water Relations and Carbon Dynamics
- Evolution and Paleontology Studies
- Species Distribution and Climate Change
- demographic modeling and climate adaptation
- Ecology and Vegetation Dynamics Studies
- Arctic and Antarctic ice dynamics
The University of Texas at Austin
2024
University of Michigan
1991-2023
University of California, Santa Cruz
1999-2013
Pennsylvania State University
1990
We investigate major results of the NARCCAP multiple regional climate model (RCM) experiments driven by global models (GCMs) regarding change for seasonal temperature and precipitation over North America. focus on two questions: How do RCM simulated changes differ from those parent GCMs thus affect our perception America, how important are relative contributions RCMs to uncertainty (variance explained) different seasons variables? The tend produce stronger precipitation: larger increases in...
Research Article| January 01, 2013 Hot summers in the Bighorn Basin during early Paleogene Kathryn E. Snell; Snell * 1Earth and Planetary Sciences Department, University of California, 1156 High Street, Santa Cruz, California 95064, USA2Department Geological Sciences, Institute Technology, 1200 Boulevard, Pasadena, 91125, USA *E-mail: ksnell@caltech.edu. Search for other works by this author on: GSW Google Scholar Bridget L. Thrasher; Thrasher John M. Eiler; Eiler 2Department Paul Koch; Koch...
Research Article| June 01, 1990 "Equable" climates during Earth history? L. Cirbus Sloan; Sloan 1Department of Geosciences and System Science Center, Pennsylvania State University, University Park, 16802 Search for other works by this author on: GSW Google Scholar Eric J. Barron Geology (1990) 18 (6): 489–492. https://doi.org/10.1130/0091-7613(1990)018<0489:ECDEH>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Manager Share Icon Facebook Twitter LinkedIn...
The presence of water vapor clouds in the stratosphere produces warming excess tropospheric greenhouse warming, via radiative lower stratosphere. stratospheric form only regions very low temperature and so produced by is concentrated polar winter regions. Results from a paleoclimate modeling study that includes idealized, prescribed (PSCs) show cause up to 20°C at high latitude surfaces hemisphere, with greatest impact oceanic where sea ice reduced. modeled response suggests PSCs may have...
Increased oceanic heat transport has often been cited as a means of maintaining warm high‐latitude surface temperatures in many intervals the geologic past, including early Eocene. Although excess amount required by high latitude sea can be calculated empirically, determining how additional would take place yet to accomplished. That mechanisms enhanced poleward remain undefined paleoclimate reconstructions is an important point that overlooked. Using Eocene climate example, we consider...
We explore the proximity effect of 2D antiferromagnetic (AFM) MnPS3 on an exfoliated superconducting sample. First, we characterized a FeSeTe (FST) sample and then placed AFM layer top FeSeTe. The transition temperature Tczero increased marginally for AFM/FST sample, while found significant improvement in upper critical field (Bc2) extracted Bc2 from electrical resistivity measurements under different magnetic fields B//c B//ab plane. thermal activation energy its power law relation low...
A unique opportunity to study rapid climate transitions in a warm world is provided by the Late Paleocene Thermal Maximum (LPTM), ∼100,000 year interval during which high‐latitude temperatures suddenly rose their highest levels Cenozoic. In order explore processes and feedbacks may have generated or limited this brief warming event, we model atmosphere equilibrium with sea surface (SSTs) derived for LPTM conditions more representative of late early Eocene. Our results suggest that were...
Research Article| October 01, 1994 Equable climates during the early Eocene: Significance of regional paleogeography for North American climate L. Cirbus Sloan 1Institute Marine Sciences, University California, Santa Cruz, California 95064 Search other works by this author on: GSW Google Scholar Author and Article Information Publisher: Geological Society America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print 0091-7613 Geology (1994) 22 (10): 881–884....
The goal of our study was to gain an estimate the variability ocean‐related climate processes driven by insolation forcing over a realistic precessional cycle in Eocene greenhouse world. Between endmembers mean annual sea surface temperatures (SSTs) vary up 5°C at high northern latitudes, with minimal tropical SST response. Extratropical regions Pacific, Atlantic, and Tethys Oceans show two‐fold variation upwelling strength, while oceanic adjacent northwestern Africa, India, South America...
The uncertainty associated with tropical sea surface temperatures (SSTs) during past “greenhouse” climates may have important and unaccounted for effects. We explore early Paleogene climatic sensitivity to changes in tropical‐subtropical SSTs a general circulation model. demonstrate that SST local far‐field effects, underscoring their importance understanding greenhouse climates. responses of winds, upwelling, water balance are substantial. Our results indicate current reconstructions...
Abstract. To model stratocumulus clouds in the regional climate model, RegCM4.1, University of Washington (UW) turbulence parametrization has been coupled to RegCM. We describe improvements RegCM's coastal and near-coastal climatology, including representation stratiform clouds. By comparing output from a 27-yr (1982–2009) simulation western North America wide variety observational data (station data, satellite aircraft situ data), we show following: (1) RegCM-UW is appropriate for use...
Recent studies have shown that proximity effects are able to substantially modulate the superconducting properties of various quasi-two-dimensional layered materials such as FeSe, FeSeTe, NbSe2, and NbS2. Due their high surface charge concentration dielectric constants, ferroelectric provide an interesting avenue for inducing in superconductors. In this study, we explore interactions between FeSeTe two-dimensional ferroelectrics CuInP2S6 CuInP2Se6. We found contrary normal behavior...
Research Article| September 01, 2009 Carbon dioxide and the early Eocene climate of western North America Bridget L. Thrasher; Thrasher 1Department Earth Planetary Sciences, University California–Santa Cruz, 1156 High Street, Santa California 95064, USA Search for other works by this author on: GSW Google Scholar Lisa C. Sloan Author Article Information Publisher: Geological Society Received: 30 Jan Revision 13 Apr Accepted: 28 First Online: 02 Mar 2017 Online ISSN: 1943-2682 Print 0091-7613...
Understanding how much, if any, of observed climate changes are anthropogenic depends upon understanding the magnitude and spatial patterns natural variability. We have compared simulated surface air temperature (SAT) variability in 16 coupled ocean‐atmosphere‐sea ice model simulations to The majority exhibit excessive over land while oceans is generally too low. ratio high all simulations, relative observations. identified several factors which may contribute differences In particular, many...