Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Steering Clear of Icy Skies: Enhanced Product Helps Guide Aircraft away from Hazardous Icing Conditions

04.12.2006
Beginning December 6, aviation weather users will receive detailed updates on in-flight icing, which can endanger commuter planes and larger commercial aircraft.

Graphical displays, developed by researchers at the National Center for Atmospheric Research (NCAR), will for the first time rate areas by icing severity and the probability of encountering icing conditions. The enhanced in-flight icing product is intended to increase safety and reduce flight delays by guiding aircraft away from potentially hazardous icing conditions, thus saving the aviation industry more than $20 million per year in injuries, aircraft damage, and fuel.

The displays are part of an upgrade to a system called CIP, for Current Icing Product. They will be available to air traffic controllers, pilots, and other aviation weather users. The product has been developed at NCAR with funding from the Federal Aviation Administration (FAA).

“This is a major advance that will enable dispatchers and even pilots to choose flight paths that avoid icing conditions,” says Marcia Politovich, who oversees in-flight icing research at NCAR. “This product will help make commuter flights safer, and it will also enable commercial airlines to avoid the delays and excessive fuel costs associated with in-flight icing.”

Icy weather, including ice pellets and cloud droplets that freeze on contact, may affect air travel anywhere in the country, especially during colder months. When ice builds up on aircraft wings, it can increase the drag on the airplane and make staying aloft more difficult. Even when aircraft are certified to fly through icing conditions, the risk can prompt pilots to detour for hundreds of miles.

Upgrading a proven product

In 2002, the FAA approved the first version of the CIP as a tool for dispatchers to make fly/no-fly decisions, plan flights, change routes, and select altitudes. The high-precision maps and plots displayed online were derived from surface observations, numerical models, satellite and radar data, and pilot reports.

The new version of CIP, which is updated hourly with selectable altitudes up to 29,000 feet, incorporates more advanced weather prediction models and more detailed observations. Instead of simply indicating the potential for icing, it quantifies the probability of icing encounters and their likely severity. Pilots of properly equipped aircraft will be able to fly through areas of light icing instead of detouring around wide regions with potential icing conditions.

A major advance over the previous version of the CIP is that pilots will be able to access the maps in the cockpit, helping them to make course adjustments as needed.

The new version of CIP will most benefit commuter planes and other smaller aircraft, says Politovich. Such aircraft are more vulnerable to icing hazards because they cruise at lower, ice-prone altitudes, below 18,000 feet. They also lack mechanisms common on larger jets that prevent ice buildup by heating the front edges of wings. Using the CIP displays, controllers will be able to guide incoming commercial jets so they avoid circling at altitudes where ice could accumulate.

A costly hazard

A study by the National Transportation Safety Board found that in-flight icing was responsible for dozens of accidents a year, mostly among smaller, general aviation aircraft. An estimated 819 people died in accidents related to in-flight icing from 1982 to 2000, with most accidents occurring between the months of October and March, according to the study.

Cancellations and delays due to icy weather can cost airlines millions of dollars in a single day. On March 20, 2000, Denver International Airport was overwhelmed by an unusually large number of aircraft that, after circling because of heavy air traffic, landed with heavy ice buildup and then needed deicing treatment before taking off again. As a result, hundreds of flights were cancelled.

Testing and operations

The National Weather Service will operate the enhanced CIP from the Aviation Weather Center in Kansas City, Missouri. CIP will supplement but not replace the information in the NWS AIRMET, the traditional weather alert issued at six-hour intervals.

Commuter pilots at Air Wisconsin, Atlantic Coast, ComAir, and SkyWest tested the technology and gave researchers feedback throughout the development process.

David Hosansky | EurekAlert!
Further information:
http://www.ucar.edu/news/releases/2006/icing.shtml

More articles from Transportation and Logistics:

nachricht Variable speed limits could reduce crashes, ease congestion in highway work zones
07.06.2017 | University of Missouri-Columbia

nachricht Experiments show that a few self-driving cars can dramatically improve traffic flow
10.05.2017 | University of Illinois College of Engineering

All articles from Transportation and Logistics >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>