Jonathan S. Friedman

e-mail address:

Tel. (787) 878 - 2612 ext. 256

Fax (787) 878 - 1861

Born on 1962 in Brunswick, Maine.

Professional Development

Educational Background

Research interests:

My research interests envelope two aspects of the mesosphere and lower thermosphere. Both involve the use of the resonance lidar techniques developed at the Arecibo Observatory together with the global middle-atmosphere lidar community. First, I am carrying out measurements of temperatures in the metal layer (83-103 km) in order to enhance our understanding of the diurnal and seasonal structure and dynamics of this transition region between the neutral atmosphere and ionosphere. Second, I am working with experts on meteors to make optical measurements of meteoric input into the atmosphere. This is divided into two areas: 1. direct detection of meteor trails; and 2. the topside extent of the metal layer above 110 km (sometimes extending to 150 km), which seems to have a direct relationship to meteoric input.

Professional Membership

List of Publications