Past Events DRI Environmental Seminars
October 2011
NASA Earth System Science: How Earth Science Gets Done at NASA and How to Get a Proposal Funded
Date: Monday, October 17, 2011
Time: Noon - 1:00 p.m.
Location: DRI Reno, Stout Conference Room Also available via video from DRI South, room 182
Presenter:
Dr. Hal Maring
Radiation Sciences Program Manager
NASA Headquarters, Washington, D.C.
Dr. Hal Maring will be visiting Reno on Monday, October 17, 2011. Dr. Maring is the NASA program manager for radiation sciences. As part of his visit, he will be giving a lecture at DRI and would like to meet with local scientists and students to discuss NASA programs. If you are interested in meeting with Dr. Maring, please contact Dr. Hans Moosmüller by Monday, October 10, 2011.
For more information on Dr. Hal Maring, please visit:
http://science.nasa.gov/about-us/organization-and-leadership/radiation-sciences-program-manager/
Contact information:
Dr. Hans Moosmüller
Research Professor
Desert Research Institute
Nevada System of Higher Education
2215 Raggio Parkway
Reno, NV 89512-1095
Tel.: 775-674-7063
Fax: 775-674-7060
e-mail: hansm@dri.edu
April 2011
DRI ENVIRONMENTAL SEMINAR
TWO LECTURES
Technical Lecture
Why Hasn't Earth Warmed as Much as Expected?
Dr. Stephen E. Schwartz
Brookhaven National Laboratory
Upton, New York
Monday, April 4, 2011
Time : Noon-1:00pm
Location: DRI, Reno Stout A Conference Room
According to the best-estimate equilibrium climate sensitivity given by the 2007 Assessment Report of the Intergovernmental Panel on Climate Change, the observed increase in global mean surface temperature (GMST) over the industrial era, is less than 40% of that expected from observed increases in long-lived greenhouse gases. Possible reasons for this warming discrepancy are systematically examined. The warming discrepancy is mainly due to a combination of two factors: the IPCC best estimate of climate sensitivity being too high, and/or the greenhouse gas forcing being partially offset by forcing through increased concentrations of atmospheric aerosols; the increase in global heat& content due to thermal disequilibrium accounts for less than 25% of the discrepancy, and cooling by natural temperature variation can account for only about 15%. Current uncertainty in climate sensitivity precludes determining the amount of future fossil fuel CO2 emissions that would be compatible with any chosen maximum allowable increase in GMST; even the sign of such allowable future emissions is unconstrained at present. Resolving this situation requires substantial reduction in the uncertainty of radiative forcing by atmospheric aerosols.
Dr. Stephen E. Schwartz will give a technical lecture at DRI and a public lecture at UNR (organized by NNSC). He has expressed an interest in meeting with local scientist and students to discuss science and potential collaborations. If you would like to meet Dr. Schwartz, please send an email to Hans Moosmuller by Thursday, March 31st. He will only be in Reno for one day.
Public Lecture
Climate Change and Energy Use in Today's World: Chilling Considerations Regarding Global Warming
Monday, April 4, 2011
Time: 7:00 PM
Location: Davidson Mathematics & Science Lecture Hall
University of Nevada, Reno
Sponsored by:
NNSC
NV NASA EPSCoR
Desert Research Institute
University of Nevada, Reno
Truckee Meadows Community College
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Reference: Why Hasn't Earth Warmed as Much as Expected?
Schwartz S. E.,Charlson R. J., Kahn R. A., Ogren, J. A.,
and Rodhe H., J. Climate 23, 2453-2464
(2010); doi: 10.1175/2009JCLI3461.1.
March 2011
DRI ENVIRONMENTAL SEMINAR
On the use of aerosol retrievals from NASA's A-Train sensors augmented by field observations for calculating direct aerosol radiative effects
Presented by
Dr. Jens Redemann
Jens.Redemann-1@nasa.gov
BAER Institute/NASA Ames,
290 Maple Ct., Suite 268,
Ventura, CA 93003, USA
Tuesday, March 22, 2011
Noon -1:00 PM
Location DRI Reno Stout A Conference Room
We describe a technique for combining CALIOP aerosol backscatter, MODIS spectral AOD (aerosol optical depth), and OMI AAOD (absorption aerosol optical depth) measurements for the purpose of estimating full spectral sets of aerosol radiative properties, and ultimately for calculating direct aerosol radiative effects. As a prerequisite for the application of our methodology to the actual satellite observations, we assessed the consistency between comparable measurement quantities from the different A-Train sensors. For eight months (Jan., Apr., July, Oct. 2007 and 2009), comparisons of the standard MODIS-Aqua (Collection 5) AOD data to the AOD calculated from the latest release (Version 3) of the CALIOP level-2 aerosol extinction profile data set show differences in global, monthly mean, over-ocean AOD (532nm) between CALIOP and MODIS ranging between 0.02 and 0.06 for CALIOP V2, and between 0.025 and 0.04 for CALIOP V3, with CALIOP generally biased low. Our methodology for estimating aerosol radiative properties is based on look-up tables that have been tested using airborne field observations from several recent experiments. As a test of our methodology, we applied our retrievals to airborne HSRL (High Spectral Resolution Lidar) aerosol backscatter data, sunphotometer derived AOD, and in situ aerosol absorption measurements in a fire plume study during the ARCTAS (Arctic Research of the Composition of the Troposphere from Aircraft and Satellites) field campaign in 2008. Radiative fluxes modeled based on the multisensor aerosol retrievals compare well with radiative fluxes measured by an airborne spectral flux radiometer (SSFR) aboard the same aircraft. We found good agreement for the entire SSFR wavelength range of 350-2150 nm, indicating the validity of our approach for determining spectral radiative properties from spectrally limited retrieval input.
Dr. Redemman has expressed an interest in meeting with local scientist and students, if you are interested please contact Dr. Hans Moosmüller at hansm@dri.edu by Friday, 3/18/11.
Website links: Dr. Jens Redemann website
Download Information
Insight Into the Atmosphere from Inside the Atmosphere
Understanding the Anthropogenic Impact on Climate Change
A Public Lecture With
Jens Redemann, PhD
Director, Remote Sensing Group
BAER Institute
Wednesday, March 23, 2011
7:00 PM
Location
Davidson Mathematics and Science Lecture Hall
University of Nevada, Reno
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FREE PUBLIC LECTURE SERIES
ScienceNevada.org
Northern Nevada Science Coalition
Desert Research Institute
NASA EPSCoR
University of Nevada, Reno
Truckee Meadows Community College
DRIVERS OF ARIDLAND TREE POPULATION DYNAMICS IN A CHANGING CLIMATE
PRESENTED BY : SARAH KARAM
GRADUATE STUDENT FELLOW
UNIVERSITY OF NEVADA, RENO
March 23, 2011
12:30 PM – 1:30 PM: Presentation
Locations:
Desert Research Institute, Reno
Conference Room B
Desert Research Institute, Las Vegas
Room 182
February 2011
OPERATION OF COLORADO RIVER RESERVOIRS IN A CHANGING CLIMATE
PRESENTED BY:
DR. TERRY FULP
U.S. BUREAU OF RECLAMATION
LOWER COLORADO DEPUTY REGIONAL DIRECTOR
Come learn about how the U.S. Bureau of Reclamation is integrating climate variability into reservoir operations in the Colorado River Basin.
February 9, 2011
11:30 AM: Mixer with Refreshments
(UNLV)
12 PM – 1 PM: Presentation
The presentation will also be available via live stream at:
http://epscorspo.nevada.edunsf/climate1/seminar-series.html