World Trade Center Memorials

The first is an illuminated tribute of two 50-foot groupings of lights shining up from Ground Zero. The lights will be on from dusk until 11 p.m., starting March 11 and lasting until April 13.

The second memorial is for a 2- to 3-acre family-only park in Battery Park City, behind the World Financial Center. Its centerpiece will be the damaged 45,000-pound steel and bronze spherical sculpture that used to be the centerpiece of the fountain in the World Trade Center plaza.

Consensus on the two memorials came Thursday night at a meeting of the Lower Manhattan Development Corporation, which is coordinating the rebuilding effort, and its advisory panel of victims' families.

New York Mayor Michael Bloomberg has already given his approval to the light tribute, which will be smaller than the "towers of light" proposal that sought sky-high beams of light in the place where the twin towers once stood.

"I think that's a beautiful tribute to those who were lost that day," said Monica Iken, who leads September's Mission, one of the victims' groups. Iken lost her husband, a bond trader, in the attack.

The park will be located a few hundred feet from the existing families-only viewing platform at Ground Zero. The park will be fenced in with flowers and trees.

The sculpture at its center, a 15-foot diameter sphere, suffered a large gash in the terrorist attacks and is currently being stored in a hangar at John F. Kennedy International Airport.

"It's not going to be at the very beginning any elaborate memorial," said Dan Doctoroff, deputy mayor of the city. "It's in a place that's quiet, contemplative, and respectful." .