Brown Bag Seminar: Batuhan Osmanoglu

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Abstract:

For this work we focus on the climate-glacier-hydrology system of the High Mountain Asia (HMA) region as a whole. Our study area includes the entire HMA region as well as surrounding major river basins affected by the glacier and snowpack runoff in order to capture the variations in entire basins, downstream of the HMA glaciers. From a hydrological perspective the influence of the HMA region through river connectivity extends well beyond the high elevations and into many countries and provides water resources to billions of people.

This project aims to provide an integrated framework suitable for understanding past changes in glacier mass, associated streamflow in response to climate change and for projecting those changes into the future. This goal is split into four tasks, remote sensing, regional climate modeling, glacier modeling and water balance modeling. For remote sensing, our efforts focus on ASTER DEM generation, glacier deformation mapping using InSAR, debris cover mapping, and snow cover mapping. For climate modeling our team uses a coupled ocean-atmosphere model, simulating climate at 4km spatial and 6-hour temporal resolution creating a decade long time series.

The glacier model is based on degree-day modeling allowing us to generate results over the entire domain to infer the mass balance of glaciers. Finally the water balance model combines all these results in an effort to better understand changes in the downstream. In this talk I will provide an overview of the entire project, and talk about our plans for the remaining year and half.

Bio:

Batu holds a B.Sc. in telecommunications engineering and a Ph.D. in synthetic aperture radar interferometry time-series analysis. His dissertation was selected to be the most original research, and he is the winner of the University of Miami Rosenstiel School F.G. Walton Smith Prize for 2012. He worked on glacier remote sensing as a Post-Doc at the University of Alaska Fairbanks between 2011 and 2013. His primary area of expertise is radar remote sensing, and he has worked on applications for observing surface deformation, measuring target velocities, boosting signal-to-noise ratio in target detection algorithms, and radar design and instrumentation. Since 2013 he has been working at the NASA Goddard Space Flight Center.

He is working on the instrument and algorithm development of P- , L-, X- and Ku-band synthetic aperture radar systems. He received the NASA Goddard Heliophysics and Biospheric Sciences Award in 2015 for his contributions to the ongoing radar work at Biospheric Sciences Laboratory. He is currently working on development of a snow radar/radiometer sensor, and is one of the DISASTERS Program Coordinators at NASA Goddard. He is a member of the IEEE and American Geophysical Union.

He chairs the Microwave Remote Sensing workgroup under International Society for Photogrammetry and Remote-Sensing. He takes part in several remote sensing projects, for which he uses radar satellite imagery operated by European, German, Italian, Japanese and Canadian Space Agencies, NASA's airborne sensors DBSAR, ECOSAR and UAVSAR, and GAMMA's Ground Based Radar Interferometer.