Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Benthic activity (1)
- Carbon dioxide; atmospheric transport modeling; terrestrial biosphere modeling; model evaluation; seasonal cycle; interannual variability (1)
- Diel periodicity (1)
- Global Change: Atmosphere; Global Change: Climate dynamics; Meteorology and Atmospheric Dynamics: Paleoclimatology; Oceanography: General: Climate and interannual variability (1)
- Light-control (1)
Articles 1 - 3 of 3
Full-Text Articles in Entire DC Network
Evaluation Of Terrestrial Carbon Cycle Models With Atmospheric Co2 Measurements: Results From Transient Simulations Considering Increasing Co2, Climate, And Land-Use Effects, R. J. Dargaville, Martin Heimann, A. David Mcguire, I. Colin Prentice, David W. Kicklighter, F. Joos, J. S. Clein, Gerd Esser, J. Foley, J. Kaplan, R. A. Meier, Jerry M. Melillo, Berrien Moore Iii, N. Ramankutty, T. Reichenau, Annette L. Schloss, Stephen Sitch, H. Tian, L. J. Williams, Uwe Wittenberg
Evaluation Of Terrestrial Carbon Cycle Models With Atmospheric Co2 Measurements: Results From Transient Simulations Considering Increasing Co2, Climate, And Land-Use Effects, R. J. Dargaville, Martin Heimann, A. David Mcguire, I. Colin Prentice, David W. Kicklighter, F. Joos, J. S. Clein, Gerd Esser, J. Foley, J. Kaplan, R. A. Meier, Jerry M. Melillo, Berrien Moore Iii, N. Ramankutty, T. Reichenau, Annette L. Schloss, Stephen Sitch, H. Tian, L. J. Williams, Uwe Wittenberg
Earth Systems Research Center
An atmospheric transport model and observations of atmospheric CO2 are used to evaluate the performance of four Terrestrial Carbon Models (TCMs) in simulating the seasonal dynamics and interannual variability of atmospheric CO2 between 1980 and 1991. The TCMs were forced with time varying atmospheric CO2 concentrations, climate, and land use to simulate the net exchange of carbon between the terrestrial biosphere and the atmosphere. The monthly surface CO2 fluxes from the TCMs were used to drive the Model of Atmospheric Transport and Chemistry and the simulated seasonal cycles and concentration anomalies are compared with observations from several stations in the …
A 700-Year Record Of Atmospheric Circulation Developed From The Law Dome Ice Core, East Antarctica, Joseph M. Souney Jr, Paul A. Mayewski, Ian D. Goodwin, David Meeker, Vin Morgan, Mark Aj Curran, Tas D. Van Ommen, Anne S. Palmer
A 700-Year Record Of Atmospheric Circulation Developed From The Law Dome Ice Core, East Antarctica, Joseph M. Souney Jr, Paul A. Mayewski, Ian D. Goodwin, David Meeker, Vin Morgan, Mark Aj Curran, Tas D. Van Ommen, Anne S. Palmer
Earth Systems Research Center
A 700-year, high-resolution, multivariate ice core record from Dome Summit South (DSS) (66°46′S, 112°48′E; 1370 m), Law Dome, is used to investigate sea level pressure (SLP) variability in the region of East Antarctica. Empirical orthogonal function (EOF) analysis reveals that the first EOF (LDEOF1) of the combined glaciochemical, oxygen isotope ratio, and accumulation rate record from DSS represents most of the variability in sea salt seen in the record. LDEOF1 is positively correlated (at least 95% confidence level) to instrumental June mean SLP across most of East Antarctica. Over the last 700 years, LDEOF1 levels at Law Dome were the …
A Laboratory System For Examining The Influence Of Light On Diel Activity Of Stream Invertebrates, Annette L. Schloss
A Laboratory System For Examining The Influence Of Light On Diel Activity Of Stream Invertebrates, Annette L. Schloss
Earth Systems Research Center
I describe a laboratory system for investigating the role of light as a proximate cue for diel changes in locomotor activity and vertical location on the substrate of stream macro-invertebrates. The system consisted of computer-controlled halogen lamps positioned over a laboratory stream in which video-recordings were made of Stenonema modestum mayfly nymphs located on the undersides of unglazed tile substrates. Locomotor activity of study organisms in response to light changes were quantified during computer-programmed and reproducible light/dark (LD) cycles. The system provided the flexibility to simulate a variety of light environments so that the separate influences of light intensity and …