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Primeur weekly 2020-02-10

Exascale supercomputing

Tachyum's reference design will be used in a 2021 AI/HPC supercomputer ...

Quantum computing

Forschungszentrum Jülich to establish technology laboratory for quantum computers ...

FEFU scientists developed method to build up functional elements of quantum computers ...

New quantum switch turns metals into insulators ...

Focus on Europe

International Advanced Research Workshop on High Performance Computing to issue Call for Participation ...

EPSRC appoints Mark Parsons Director of Research Computing ...

e-IRG Workshop "Grand challenges of e-Infrastructures within the new ERA" to issue Call for Participation ...

BigDFT4CHEM wins the EXDCI Call for Spin-off Initiatives (SPI) ...

Eni unveils its new supercomputing system HPC5, the world's most powerful for industrial use ...

Tachyum CEO Dr. Radoslav Danilak discusses 'Bringing Slovakia to the Forefront of the Digital Age' at CEO Forum ...

Middleware

KU Leuven joins the iRODS Consortium ...

Sylabs has released SingularityPRO 3.5 ...

Hardware

DDN named finalist in Storage Magazine and SearchStorage 2019 Products of the Year awards ...

Fujitsu receives supercomputer order from Nagoya University's Information Technology Center ...

Controlling light with light ...

WekaIO recognized as a coolest Cloud company by CRN ...

Samsung to Advance High Performance Computing Systems with Launch of Industry's First 3rd-generation (16GB) HBM2E ...

Xperi enters into new patent and technology license agreement with SK hynix ...

Supermicro announces second quarter fiscal 2020 financial results ...

Applications

BSC European supercomputing centre that most has contributed to Pan-Cancer ...

March 2020 HPC User Forum will showcase AI, energy research and other HPC areas ...

Deep learning accurately forecasts heat waves and cold spells ...

Retina-inspired carbon nitride-based photonic synapses for selective detection of UV light ...

Computer simulation for understanding brain cancer growth ...

Gordon examining secure computation ...

Fusion squeeze, global image mapping, computing mental health, and Na+ batteries at Oak Ridge National Laboratory ...

SDSC supercomputer models improve Oregon/Washington coastal forecasts ...

Protein Data Bank archive adds new coronavirus protease structure ...

SDSC supercomputer models improve Oregon/Washington coastal forecasts


This figure shows the sea-surface temperature on August 1, 2011 before and after En4DVAR data assimilation (DA) correction. The black contour indicates the position of the upwelling front between the warm ocean water in the west and cold, upwelled water near the coast. Credit: Ivo Pasmans et al.
3 Feb 2020 San Diego - Researchers at Oregon State University have been using the Comet supercomputer at the San Diego Supercomputer Center (SDSC) to test an algorithm that they believe will reduce errors in the widely used three-day forecasts for water temperature, salinity levels, sea heights, and currents off the coasts of Oregon and Washington.

To reduce the forecasting errors, Ivo Pasmans, formerly a doctorate student at the university, and Alexander Kurapov, an Oregon State professor specializing in ocean modelling and data assimilation, used Comet to combine forecasts with observations using an approach called ensemble four-dimensional variational data assimilation (DA), or En4DVAR, which is viewed as a novel oceanographic forecasting tool.

"Running the ensemble of model runs needed by En4DVAR is very time consuming and we could not have used the En4DVAR approach without the 20 processors (480 processor cores) available to us on Comet", stated Ivo Pasmans, now a research assistant professor at the University of New Orleans and lead author of a study published in the December 2019 issue ofOcean Modelling.

"To generate an ensemble that realistically represents the model error statistics, we assumed that errors in the model's wind forcing were the main source of model error, and we built on this concept using satellite wind observations and what's known as a Bayesian Hierarchical Model to estimate a probability distribution for the wind errors", explained Ivo Pasmans.

With a more reliable three-day forecast, fishing boats can be guided to the best fishing grounds, thereby reducing fuel consumption and improving catch, according to the researchers. Likewise, during a shoreline emergency such as an oil spill, more accurate forecasts would allow government officials to make decisions on how to best accomplish crisis management efforts.

"In general, more accurate predictions of the ocean also allow for more productive search-and-rescue missions", stated Ivo Pasmans. "Mostly, though, our Oregon/Washington shoreline is used by fishermen. In the summer there is a strong front in the ocean offshore Oregon, where nutrient rich deep-sea water surfaces and fosters plankton growth and attracts fish such that the correct forecasts of the location of the front can more precisely guide fishing boats."

"Earth systems such as its oceans are stochastic systems that always contain random components, which make exact forecasts impossible", added Ivo Pasmans. "Thanks to supercomputers such as Comet, however, we were able to run high-powered data assimilation that allowed us to correct these errors to the best of our abilities and generate more accurate forecasts."

Funding for this research was provided by: the National Oceanic and Atmospheric Administration (NOAA) Coastal Ocean Modeling Testbed (COMT) grant NA13NOS0120139; NOAA Quantitative Observing System Assessment Program (QOSAP), National Science Foundation (NSF) grants OCE-0527168 and OCE-0961999, the Integrated Ocean Observing System/Northwest Association of Networked Ocean Observing Systems (IOOS/NANOOS) grant NA16NOS0120019, and the National Aeronautics and Space Administration (NASA) SWOT Science Definition Team project grant NNX13AD89G. Access to SDSC's Comet supercomputer was conducted via the National Science Foundation’s Extreme Science and Engineering Discovery Environment (XSEDE) under allocation TG-OCE160001.
Source: San Diego Supercomputer Center - SDSC

Back to Table of contents

Primeur weekly 2020-02-10

Exascale supercomputing

Tachyum's reference design will be used in a 2021 AI/HPC supercomputer ...

Quantum computing

Forschungszentrum Jülich to establish technology laboratory for quantum computers ...

FEFU scientists developed method to build up functional elements of quantum computers ...

New quantum switch turns metals into insulators ...

Focus on Europe

International Advanced Research Workshop on High Performance Computing to issue Call for Participation ...

EPSRC appoints Mark Parsons Director of Research Computing ...

e-IRG Workshop "Grand challenges of e-Infrastructures within the new ERA" to issue Call for Participation ...

BigDFT4CHEM wins the EXDCI Call for Spin-off Initiatives (SPI) ...

Eni unveils its new supercomputing system HPC5, the world's most powerful for industrial use ...

Tachyum CEO Dr. Radoslav Danilak discusses 'Bringing Slovakia to the Forefront of the Digital Age' at CEO Forum ...

Middleware

KU Leuven joins the iRODS Consortium ...

Sylabs has released SingularityPRO 3.5 ...

Hardware

DDN named finalist in Storage Magazine and SearchStorage 2019 Products of the Year awards ...

Fujitsu receives supercomputer order from Nagoya University's Information Technology Center ...

Controlling light with light ...

WekaIO recognized as a coolest Cloud company by CRN ...

Samsung to Advance High Performance Computing Systems with Launch of Industry's First 3rd-generation (16GB) HBM2E ...

Xperi enters into new patent and technology license agreement with SK hynix ...

Supermicro announces second quarter fiscal 2020 financial results ...

Applications

BSC European supercomputing centre that most has contributed to Pan-Cancer ...

March 2020 HPC User Forum will showcase AI, energy research and other HPC areas ...

Deep learning accurately forecasts heat waves and cold spells ...

Retina-inspired carbon nitride-based photonic synapses for selective detection of UV light ...

Computer simulation for understanding brain cancer growth ...

Gordon examining secure computation ...

Fusion squeeze, global image mapping, computing mental health, and Na+ batteries at Oak Ridge National Laboratory ...

SDSC supercomputer models improve Oregon/Washington coastal forecasts ...

Protein Data Bank archive adds new coronavirus protease structure ...