The researchers will present the findings of their study at the Hilton San Francisco Hotel on Thursday, October 19, 2006, during the HFES 50th Annual Meeting, October 16–20.
Since the 1990s, the weather community has used a network of 158 nationwide Doppler radars to observe the atmosphere. Emergency managers are usually glued to these screens so they can predict approaching major weather systems. There are limitations to the Doppler radar, however; low-altitude areas where severe weather strikes the hardest--the Gulf Coast, for example – are extremely undersampled.
CASA radars can detect weather systems lower to the ground, more frequently, with shorter ranges, and with finer spatial and temporal resolution. Four CASA radars covering a 100 x 100-kilometer testing area in Oklahoma will be up and running in late 2006. To determine the impact of this improved data, the researchers first created a model of how emergency managers make decisions. Then they asked 11 experienced emergency managers to make decisions about two simulated severe weather scenarios and to complete questionnaires based on their techniques, experiences, and observations following the simulations.
This study helped the researchers refine the decision-making model by revealing difficulties that the emergency managers encountered. For example, many did not understand the relationship between radar location and storm velocity data, and some became distracted by the fine-grained details and lost the "big picture" perspective. These findings will aid in the design of improved training and better visualizations of the data.
Lois Smith | EurekAlert!
The importance of biodiversity in forests could increase due to climate change
17.11.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
Win-win strategies for climate and food security
02.10.2017 | International Institute for Applied Systems Analysis (IIASA)
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
17.11.2017 | Physics and Astronomy
17.11.2017 | Health and Medicine
17.11.2017 | Studies and Analyses