Earth System Science Center and Department of Atmospheric Science at The University of Alabama in Huntsville

Next Seminar

Coming up next:

Wednesday, November 12, 2014

 

12:45 pm;   Room 4065

ATS 781 Student Seminar Presentations

 

12:45pm – 12:50pm

Introductory Remarks by William Vaughan

12:50pm — 1:05pm

Zach Mahafza, MS Candidate

“Creating a More Comprehensive Assessment of Social Vulnerability to Flooding Using MODIS Landcover”

Faculty Advisor: Tom Sever

Flooding has been a persistent economic problem in Alabama.  Studies that have focused on flooding have either ignored the social element or underrepresented the influence of land cover.  This paper seeks to address this gap by utilizing the Hazards of Place model and including Land Cover within its assessment of vulnerability towards flooding in Alabama.

1:05pm — 1:20pm
Brian Freitag, PhD Candidate

“Numerical Modeling of Flash Floods Over Complex Terrain Near Black Hills, South Dakota”

Faculty Advisor: Udaysankar Nair Numerical meteorological models fall short of accurately producing clouds at the correct time and location with respect to observations.  A method has been developed to analytically solve for vertical velocities necessary to produce or dissipate clouds within the model system.  Preliminary results of this method will be presented.

1:20pm — 1:35pm
Nicholas Elmer, MS Candidate

“Limb Correction of Red-Green-Blue Composite Imagery for Improved Interpretation” Faculty Advisor:  Gary Jedlovec

The limb effect, a result of an increasing optical path length of the absorbing atmosphere between the Earth and the satellite as scan angle increases, interferes with the qualitative interpretation of Red-Green-Blue (RGB) composites at large scan angles.  An improved approach to correct for limb effects will be presented.  1:35pm — 1:50pm Kelcy Brunner, MS Candidate“Phenomenology of Intracloud Lightning Leaders”Faculty Advisor: Philip Bitzer This study seeks to clarify and examine the characteristics of intracloud (IC) lightning leaders.  The relationships emerging between electric fields, radiation field pulses, and optical emissions are used to outline energetic characteristics of IC leaders and define the active portion of the IC lightning flash.


Previously:

Wednesday, November 5, 2014

 

12:45 pm;   Room 4065

 Global Hydrology Resource Center –

Focus on Field Campaigns 

 

Helen Conover, UAH, GHRC Operations Manager

Kaylin Bugbee, UAH, former student assistant, now a research associate with GHRC

The Global Hydrology Resource Center (GHRC) is our local NASA Earth science data center, jointly managed by MSFC’s Earth Science Office and UAH’s Information Technology and Systems Center.  The Global Hydrology Resource Center (GHRC) provides Earth science data, information, and products from satellite, airborne, and surface-based instruments.  GHRC acquires basic data streams and produces derived products from many instruments spread across a variety of instrument platforms.  Many of our data sets were collected in field experiments, involving a variety of instruments – airborne radar, radiometer and in situ probes combined with dense networks of ground based radar, disdrometer and rain gauge platforms – deployed for roughly six weeks to study a particular meteorological phenomenon or regime.  The most recent of these was the Hurricane and Severe Storm Sentinel mission in the fall of 2014.  This talk will provide an overview of GHRC data and services, with a focus on our work with field campaign project coordination and data management.  We will also discuss recent student research experiences with GHRC.

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