NORMAN, Okla. (AP) - Weather researchers have placed a new mobile radar unit in the path of Hurricane Ike to collect data for the first time on a hurricane's eyewall.

The unit was positioned Friday northeast of Victoria, Texas.

The dual-polarized X-band mobile radar - designated NO-XP - was built by scientists at the weather service's National Severe Storms Lab and researchers from the University of Oklahoma.

The radar sends radio waves both horizontally and vertically to more accurately determine precipitation types and amounts.

Officials say the research data can be used to help improve the quality and accuracy of forecasts and warnings of hazardous weather.

NSSL's field command vehicle and a mobile mesonet are also in Texas providing support.

They are also coordinating with other scientists using mobile radars in the area, including the Center for NSSL's Doppler on Wheels and the University of Alabama Huntsville's mobile radar positioned on the east side of Houston.

The NO-XP is a new mobile radar built to study precipitation processes as well as severe weather and became operational in April 2008.