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2009

Climate

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Articles 1 - 30 of 91

Full-Text Articles in Physical Sciences and Mathematics

The 2009-2010 El Nino: Hydrologic Relief To U.S. Regions, Glenn A. Tootle, Thomas C. Piechota, Oubeidillah Aziz, William Paul Miller, Venkat Lakshmi, John A. Dracup, Carly Jerla Dec 2009

The 2009-2010 El Nino: Hydrologic Relief To U.S. Regions, Glenn A. Tootle, Thomas C. Piechota, Oubeidillah Aziz, William Paul Miller, Venkat Lakshmi, John A. Dracup, Carly Jerla

Civil and Environmental Engineering and Construction Faculty Research

Current forecasts by the U.S. National Oceanic and Atmospheric Administration (NOAA) are that the Pacific Ocean will experience El Niño conditions in late 2009 and into 2010. These forecasts are similar to past El Niño events in 1972–1973, 1982–1983, 1986–1987, and 2002–2003.

Evaluating the hydrologic conditions for these past El Niño events reveals that during these times, surface water supply conditions improved in many parts of the United States, including the Southeast, Midwest, and Southwest. At the same time, the Pacific Northwest and other specific regions of the United States experienced below-average water supply conditions. This is consistent with the …


A Fateful Year For Climate Change, William J. Antholis Nov 2009

A Fateful Year For Climate Change, William J. Antholis

Brookings Scholar Lecture Series

Since 1979, 20% of the polar ice cap has melted away. While the public is aware of climate change, the urgency to action is not there. Climate change is also an issue of national security, but enforcement of the the Kyoto and Copenhagen treaties is hampered.


Climate Change Economics 101, Adele C. Morris Nov 2009

Climate Change Economics 101, Adele C. Morris

Brookings Scholar Lecture Series

Outline of Talk:
- Climate change is a market failure
- Climate and energy facts
- Economically efficient policy design
- Economics of Domestic Legislation


Water As A Complex System: Understanding The Dynamics In A Changing Environment, Heejun Chang Oct 2009

Water As A Complex System: Understanding The Dynamics In A Changing Environment, Heejun Chang

Systems Science Friday Noon Seminar Series

The water resources system is constantly evolving over space and time at a range of scales. Human-induced climate change and land development are probably two major driving forces of water resource system changes. However, the impacts of such changes are region specific, which depend on watershed characteristics such as topography and geology. Numerical simulation models are useful tools for understanding the system dynamics by allowing the multiple interactions of system components. I will introduce case studies of the Pacific Northwest that examine how changing climate and population growth affect regional water resources at multiple spatial and temporal scales and explain …


Agenda: World Energy Justice Conference And Appropriate Technology Arcade, University Of Colorado Boulder. Center For Energy & Environmental Security, University Of Colorado Boulder. School Of Law Oct 2009

Agenda: World Energy Justice Conference And Appropriate Technology Arcade, University Of Colorado Boulder. Center For Energy & Environmental Security, University Of Colorado Boulder. School Of Law

World Energy Justice Conference (October 23-24)

The 2009 CEES Energy Justice Conference took place at the University of Colorado Law School on October 23rd and 24th, 2009. It featured 11 sessions, more than 40 speakers, and attracted over 200 attendees. The Conference brought together leading international and U.S. decision-makers in politics, engineering, public health, law, business, economics, and innovators in the sciences to explore how best to address the critical needs of the energy-oppressed poor (EOP) through long-term interdisciplinary action, information sharing, and deployment of appropriate sustainable energy technologies (ASETs).

The Colorado Journal of International Environmental Law & Policy (CJIELP) at the University of Colorado Law …


Geopolitics Of Global Change: The Melting Of The Arctic, Charles K. Ebinger Oct 2009

Geopolitics Of Global Change: The Melting Of The Arctic, Charles K. Ebinger

Brookings Scholar Lecture Series

Arctic Melt:
- Climate change, feedback loops
- More than one million square miles of ice melted in 2007
- We could have ice-free Arctic summers as early as 2013 or 2015
- New environmental and strategic challenges


Us Itase Glaciochemistry Phase 2: East Antarctica, Paul Mayewski Oct 2009

Us Itase Glaciochemistry Phase 2: East Antarctica, Paul Mayewski

University of Maine Office of Research Administration: Grant Reports

This award supports a project to undertake glaciochemical investigations of the Ross Sea Embayment Drainage System, and portions of Wilkes Land for purposes of understanding annual to multi-centennial scale climate variability. The glaciochemical data that will be collected will contribute to the U.S. component of the International Trans-Antarctic Scientific Expedition and will occur over a period of two years on an overland traverse that will begin at Taylor Dome in Northern Victoria Land and travel to the South Pole. This data, along with similar information collected on a series of earlier traverse in West Antarctica, will contribute to providing an …


Droughtscape- Fall 2009, Kelly Smith Oct 2009

Droughtscape- Fall 2009, Kelly Smith

Droughtscape, Quarterly Newsletter of NDMC, 2007-

Drought Monitor Forum to be in Austin, Oct. 7-8

El Niño Likely to Bring More Needed Precipitation

NDMC Welcomes Visiting Chinese Scientist

TX, CA Feeling Worst of Impacts

Grant to Bring Climate Change Ed to Teachers

Speaking of Drought ...

NDMC Takes Message Across Nebraska and World


Sparticus: Small Particles In Cirrus Science And Operations Plan, J. Mace, E. Jensen, G. Mcfarquhar, J. Comstock, T. Ackerman, David L. Mitchell, X. Liu, T. Garrett Oct 2009

Sparticus: Small Particles In Cirrus Science And Operations Plan, J. Mace, E. Jensen, G. Mcfarquhar, J. Comstock, T. Ackerman, David L. Mitchell, X. Liu, T. Garrett

Publications (E)

From a mass-weighted perspective, cirrus clouds exert an enormous influence on the radiative energy budget of the earth?s climate system. Owing to their location in the cold upper troposphere, cirrus can significantly reduce the outgoing longwave radiation while, at the same time, remaining relatively transmissive to solar energy. Thus, cirrus clouds are the only cloud genre that can exert a direct radiative warming influence on the climate system (Ackerman et al. 1988). It is not surprising, therefore, that general circulation models (GCMs) are especially sensitive to the presence of cirrus in the model atmosphere. Lohmann and Roeckner (1995), for instance, …


Impacts Of Meteorological Factors On Modis-Observed Fire Activity In The North American Boreal Forest: The Role Of Lightning, David A. Peterson Oct 2009

Impacts Of Meteorological Factors On Modis-Observed Fire Activity In The North American Boreal Forest: The Role Of Lightning, David A. Peterson

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

The meteorological impact on wildfire activity in the North American boreal forest during the fire seasons of 2000 – 2006 is statistically analyzed through an integration of the following data sets: the MODerate Resolution Imaging Spectroradiometer (MODIS) level 2 fire products, the 3-hourly 32-km gridded meteorological data from North American Regional Reanalysis (NARR), the instantaneous lightning data collected by the Canadian Lightning Detection Network (CLDN), and the Alaska Lightning Detection Network (ALDN). Positive anomalies of the 500 hpa geopotential height field, convective available potential energy (CAPE), number of cloud-to-ground lightning strikes, and the number of consecutive dry days are found …


Evaluations Of Nam Forecasts On Midtropospheric Perturbation-Induced Convective Storms Over The U.S. Northern Plains, Shih-Yu (Simon) Wang, T. C. Chen, S. E. Taylor Oct 2009

Evaluations Of Nam Forecasts On Midtropospheric Perturbation-Induced Convective Storms Over The U.S. Northern Plains, Shih-Yu (Simon) Wang, T. C. Chen, S. E. Taylor

Plants, Soils, and Climate Faculty Publications

In the U.S. northern plains, summer progressive convective storms that occur in weakly forced environ- ments are often coupled with short-wave perturbations that are embedded in the midlevel northwesterly flow. These midtropospheric perturbations (MPs) are capable of inducing propagating convection that contributes to a majority of the rainfall over the northern plains during July and August. There is a possibility that the difficulties of numerical weather prediction models in forecasting summer convective rainfall over the northern plains are partly attributed to their deficiency in forecasting MPs. The present study tests this possibility through examining operational forecasts by the North American …


Collaborative Research: Drillsite Reconnaissance And Snow Chemistry Survey In Denali National Park, Karl J. Kreutz Sep 2009

Collaborative Research: Drillsite Reconnaissance And Snow Chemistry Survey In Denali National Park, Karl J. Kreutz

University of Maine Office of Research Administration: Grant Reports

This is a collaborative proposal by Principal Investigators from the Universities of New Hampshire (UNH) and Maine. Understanding the mechanisms responsible for interannual to decadal-scale climate variability during the late Holocene remains a fundamental research problem in Arctic science. The Principal Investigator's will: 1) perform a detailed reconnaissance to identify suitable locations in Denali National Park (DNP) from which to recover and develop high resolution ice core records; and (2) develop detailed snow chemistry records that document the spatial (both horizontally and vertically) and seasonal variation of major ion and trace element deposition in the region. This will be the …


Collaborative Research: Abandoned Elephant Seal Colonies In Antarctica: Integration Of Genetic, Isotopic, And Geologic Approaches Toward Understanding Holocene Environmental Change, Brenda L. Hall Sep 2009

Collaborative Research: Abandoned Elephant Seal Colonies In Antarctica: Integration Of Genetic, Isotopic, And Geologic Approaches Toward Understanding Holocene Environmental Change, Brenda L. Hall

University of Maine Office of Research Administration: Grant Reports

During previous NSF-sponsored research, the PI's discovered that southern elephant seal colonies once existed along the Victoria Land coast (VLC) of Antarctica, a region where they are no longer observed. Molted seal skin and hair occur along 300 km of coastline, more than 1000 km from any extant colony. The last record of a seal at a former colony site is at ~A.D. 1600. Because abandonment occurred prior to subantarctic sealing, disappearance of the VLC colony probably was due to environmental factors, possibly cooling and encroachment of land-fast, perennial sea ice that made access to haul-out sites difficult. The record …


Ice Supersaturations From The Vcsel Hygrometer In Hippo Global And Start08 Campaigns, Minghui Diao, Mark Zondlo Sep 2009

Ice Supersaturations From The Vcsel Hygrometer In Hippo Global And Start08 Campaigns, Minghui Diao, Mark Zondlo

Faculty Publications, Meteorology and Climate Science

No abstract available.


Long Distance Microbial Transport In Air: Global Change Implications, Bradley J. Davey, J. C. Bruckner, Jenny C. Fisher, Duane P. Moser Aug 2009

Long Distance Microbial Transport In Air: Global Change Implications, Bradley J. Davey, J. C. Bruckner, Jenny C. Fisher, Duane P. Moser

Undergraduate Research Opportunities Program (UROP)

The first manifestations of global change will most likelv be observed in the Earth's atmosphere. Changing wind patterns, for example, may effect the long distance dispersal of microor-g anisms. The overall objective of this research is to correlate molecular assessments of microbial community structure from cloud water and snow samples, obtained from DRI's Storm Peak Laboratory atop Mt. Werner in Colorado, with atmospheric data and calculated air mass back trajectories. Our activities for summer of 2009 will be a focused proof-of-concept exercise to determine if intact microbial DNA and viable cells can be recovered from cloud water and alpine snow …


National Urban Database And Access Portal Tool, Nudapt, Jason Ching, Michael Brown, Steven Burian, Fei Chen, Ron Cionco, Adel Hanna, Torrin Hultgren, Timothy Mcpherson, David J. Sailor, Haider Taha, David Williams Aug 2009

National Urban Database And Access Portal Tool, Nudapt, Jason Ching, Michael Brown, Steven Burian, Fei Chen, Ron Cionco, Adel Hanna, Torrin Hultgren, Timothy Mcpherson, David J. Sailor, Haider Taha, David Williams

Mechanical and Materials Engineering Faculty Publications and Presentations

Based on the need for advanced treatments of high resolution urban morphological features (e.g., buildings, trees) in meteorological, dispersion, air quality and human exposure modeling systems for future urban applications, a new project was launched called the National Urban Database and Access Portal Tool (NUDAPT). NUDAPT is sponsored by the U.S. Environmental Protection Agency (USEPA) and involves collaborations and contributions from many groups including federal and state agencies and from private and academic institutions here and in other countries. It is designed to produce and provide gridded fields of urban canopy parameters for various new and advanced descriptions of model …


Preparing For A Changing And Variable Climate: Final Report To Grape And Wine Research And Development Corporation Rt 07/02-2, Glynn Ward Jul 2009

Preparing For A Changing And Variable Climate: Final Report To Grape And Wine Research And Development Corporation Rt 07/02-2, Glynn Ward

All other publications

Climate change has the potential to reshape the Australian wine industry. Regions will be differentially impacted and will respond according to their unique viticultural, environmental, economic and social characteristics. An industry forum and regional workshop series was held in Western Australia focusing on three wine regions: Margaret River, Pemberton and Mount Barker. Fine scale climate information (mesoscale maps) and overviews of current and emerging technologies and resources that can be used by the wine industry to plan for and manage the risks and opportunities resulting from a changing and variable climate were presented. The information indicated that the wine regions …


Preparing For A Changing And Variable Climate, Glynn Ward Jul 2009

Preparing For A Changing And Variable Climate, Glynn Ward

Research Reports

Climate change has the potential to reshape the Australian wine industry. Regions will be differentially impacted and will respond according to their unique viticultural, environmental, economic and social characteristics. An industry forum and regional workshop series was held in Western Australia focusing on three wine regions: Margaret River, Pemberton and Mount Barker. Fine scale climate information (mesoscale maps) and overviews of current and emerging technologies and resources that can be used by the wine industry to plan for and manage the risks and opportunities resulting from a changing and variable climate were presented. The information indicated that the wine regions …


The Southeastern Coastal Plain: An Overview, Lee J. Florea, H L. Vacher Jul 2009

The Southeastern Coastal Plain: An Overview, Lee J. Florea, H L. Vacher

Lee J Florea, PhD, P.G.

Florida enjoys the highest density of large springs in North America (Scott et al., 2004); Silver Springs is just one of the 33 first-magnitude springs (mean flow greater than 100 cfs (2.8 m3/s), and there are hundreds of smaller springs (Fig. 6.2; see Meinzer, 1927, and Scott et al., 2004). They are supplied by spectacular underwater caves that are internationally recognized in the cave-diving community. Less well known are the many air-filled caves of the region (see Florea, 2006; Moore, 2006; Lane 1986). Though generally smaller than their aquatic counterparts, their beauty can rival the world’s best show caves. This …


The Cumberland Plateau Of Eastern Kentucky, Larry C. Simpson, Lee J. Florea Jul 2009

The Cumberland Plateau Of Eastern Kentucky, Larry C. Simpson, Lee J. Florea

Lee J Florea, PhD, P.G.

Eastern Kentucky contains almost the same Mississippian limestones that appear at Mammoth Cave in south-central Kentucky (Chapter 3). To the east these strata dip below the Appalachian Basin and reappear as the Greenbrier Group in the Virginias. The limestone outcrop in eastern Kentucky follows the western margin of the Cumberland Plateau and forms a ragged ribbon of karst that is continuous from southeastern Ohio through Kentucky and Tennessee and into northern Alabama. There are more than 2,000 documented caves comprising over 470 km of surveyed passage in the Kentucky segment of the Cumberland Plateau (Fig. 2.115). At least 14 are …


Caves And Karst Of West-Central Florida, Lee J. Florea, David Budd, Robert Brinkmann Jul 2009

Caves And Karst Of West-Central Florida, Lee J. Florea, David Budd, Robert Brinkmann

Lee J Florea, PhD, P.G.

The real west-central Florida is far from the “Sunshine State” image of white sand beaches and palm trees. Gently rolling hills, dense jungle-like forests, pine and palmetto scrublands, impenetrable cypress swamps, and alligator-laden rivers are more common. Numerous crystal-clear springs offer a glimpse of the hidden world below – a world that could challenge the most imaginative Disney artists (Fig. 6.17).


Droughtscape- Summer 2009, Kelly Smith Jul 2009

Droughtscape- Summer 2009, Kelly Smith

Droughtscape, Quarterly Newsletter of NDMC, 2007-

U.S. Drought Monitor Forum, 2009

El Niño Could Bring Wet Winter After Hot Summer

Around the World

Agriculture Hit Hard in California, Texas

Predictable Patterns in Missouri River Basin?

Seeking Low-Flow Effects in Colorado, Southeast

VegDRI Began Coast-to-Coast Coverage in May


The Biscayne Aquifer Of Southeastern Florida, Kevin Cunningham, Lee J. Florea Jun 2009

The Biscayne Aquifer Of Southeastern Florida, Kevin Cunningham, Lee J. Florea

Lee J Florea, PhD, P.G.

In southeastern Florida, locally delineated, small, poorly explored caves and subtle karst are characteristic of the limestone that composes the unconfined Biscayne aquifer – one of the most permeable aquifers in the world. The main units of the Biscayne aquifer are the Fort Thompson Formation and Miami Limestone, both characterized by eogenetic karst.


Slides: Groundwater Law And Administration: From Conflict To Reform, Michael A. Gheleta Jun 2009

Slides: Groundwater Law And Administration: From Conflict To Reform, Michael A. Gheleta

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Michael A. Gheleta, Brownstein Hyatt Farber Schreck LLP, Denver, CO

14 slides


Slides: Modifying Prior Appropriation: The Spectrum Of Experiences, Adam Schempp Jun 2009

Slides: Modifying Prior Appropriation: The Spectrum Of Experiences, Adam Schempp

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Adam Schempp, Environmental Law Institute, Washington, DC

12 slides


Slides: Next Evolutionary Steps In State Instream Flow Programs, Lawrence J. Macdonnell Jun 2009

Slides: Next Evolutionary Steps In State Instream Flow Programs, Lawrence J. Macdonnell

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Lawrence J. MacDonnell, attorney and consultant, Boulder, CO

27 slides


Slides: Rethinking Western Water Law: Restoring The Public Interest In Western Water Law, Mark Squillace Jun 2009

Slides: Rethinking Western Water Law: Restoring The Public Interest In Western Water Law, Mark Squillace

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Mark Squillace, Director, Natural Resources Law Center, University of Colorado Law School

20 slides


Slides: Opportunities: Softer Paths?, Sarah Bates Jun 2009

Slides: Opportunities: Softer Paths?, Sarah Bates

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Sarah Bates, Public Policy Research Institute, University of Montana

2 slides


Slides: Challenges For Reclamation: A Western States' Perspective, Craig Bell Jun 2009

Slides: Challenges For Reclamation: A Western States' Perspective, Craig Bell

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Craig Bell, Western Water States Council, Midvale, Utah

9 slides


Slides: Regional Energy-Water Resilience Under Climate Change, Bonnie G. Colby Jun 2009

Slides: Regional Energy-Water Resilience Under Climate Change, Bonnie G. Colby

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Dr. Bonnie G. Colby, Professor of Resource Economics & Hydrology, University of Arizona

24 slides