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Target Seminars 2013

The Large Hadron Collider - From Big Data to Physics Discovery

Speaker: Dr. Markus Elsing, Senior Staff and a Leader of the ATLAS Data Processing Group, CERN, Switzerland

Date: November 26th, 2013

Time: 15:00 - 16:00

Place: Donald Smitszaal, Donald Smits Center for Information Technology, University of Groningen. See directions

LIVE WEBCAST
You can watch the seminar live on your laptop, tablet or smartphone. Go to http://tinyurl.com/citlivestream-new

VIDEO RECORDING
If you have missed the seminar, you can watch a video recording of talk.

PICTURES
You can see a picture album from the seminar in our Gallery

Abstract


The discovery of the Higgs boson at the Large Hadron Collider (LHC) in July 2013 was marked as a major breakthrough in high energy physics. The outstanding performance of the data processing chains played an important role in this discovery. Each second 100 TB of raw data from the detectors was reduced using smart data reduction techniques and sent to the LHC Computing GRID for further analysis. Over the first 3 years of data collection, the experiments have accumulated more than 100 petabytes of useful data on the GRID. In this seminar, I will present an overview of the online and offline (GRID) data processing strategies used in the discovery of the Higgs boson. I will also discuss the latest results from the ATLAS, CMS and LHCb experiments.

Short bio


Dr. Markus Elsing is a particle physicist and an expert in event reconstruction algorithms for particle detectors. For the past 12 years he has been the leader of the Data Processing Group of the ATLAS experiment at the Large Hadron Collider, CERN. Since 2002, he is responsible for the simulation and reconstruction software for the central tracking detector of the experiment. His group is responsible for the ATLAS GRID data management system and for the ATLAS Tier-0 computing facility for prompt reconstruction at CERN. His research interests are in novel reconstruction techniques, precision electroweak physics and searches for the Higgs Boson and new physics.

From Photons to Information: Satellite Observations of the Atmopsheric Composition for Ozone Monitoring, Climate Change and Air Quality Applications

Speaker: Mr. Pepijn Veefkind, Ozone Monitoring Instrument (OMI) PI Team, Climate Research Department, Royal Netherlands Meteorological Institute (KNMI)

Date: July 9th, 2013, 15:00 - 16:00

Place: Donald Smitszaal, Donald Smits Center for Information Technology, University of Groningen

LIVE WEBCAST
You can watch the seminar live on your laptop, tablet or smartphone. Go to http://tinyurl.com/citlivestream-new

VIDEO RECORDING
If you have missed the seminar you can watch a video recording of the talk.

PICTURES
You can see pictures from the seminar in our Gallery

Abstract


KNMI is the PI institute for Ozone Monitoring Instrument (OMI) and the next generation TROPOspheric Monitoring Instrument (TROPOMI). These remote sensing instruments have a wide user community ranging from scientific research to near-real-time applications in air quality forecasting and volcanic ash warning systems for aviation. This seminar will focus on the data processing systems of the OMI and TROPOMI missions. The users and their user requirements will be discussed along with the chain of data reception, processing, archiving and dissemination. The challenges of high data rates (1 GB per orbit for OMI and 25 times higher for TROPOMI), and trade-offs in algorithms used for the time critical data processing will be highlighted.

Short bio


Dr. Pepijn Veefkind is an expert in the field of satellite remote sensing of aerosols and trace gases with more than 15 years of experience in developing, and validating retrieval algorithms for satellite-based radiometers and spectrometers. He is the Deputy Principal Investigator of the OMI PI team at the KNMI, as well as the Principal Investigator for the TROPOspheric Monitoring instrument (TROPOMI) on the ESA/GMES Sentinel-5 Precursor mission, to be launched in 2015. His research interests include global monitoring of aerosols and trace gases, comparison of satellite measurements from different sensors and more.

Laatst gewijzigd:04 januari 2018 14:24