Improved estimates for neutral air temperatures at 90 km and 78°N using satellite and meteor radar data
Article first published online: 13 JUL 2010
Copyright 2010 by the American Geophysical Union.
Volume 45, Issue 4, August 2010
How to Cite
2010), Improved estimates for neutral air temperatures at 90 km and 78°N using satellite and meteor radar data, Radio Sci., 45, RS4006, doi:10.1029/2009RS004344., , , , and (
- Issue published online: 13 JUL 2010
- Article first published online: 13 JUL 2010
- Manuscript Accepted: 31 MAR 2010
- Manuscript Revised: 17 MAR 2010
- Manuscript Received: 23 DEC 2009
 A technique for using satellite-derived temperatures to calibrate initial estimates of 90 km temperatures measured by meteor wind radar is presented. Temperatures derived from the Nippon/Norway Svalbard Meteor Radar, situated on Svalbard at 78°N, 16°E, are calibrated using data from the Aura spacecraft's Microwave Limb Sounder (MLS) experiment. The calibration was performed in a two-step process: after an initial calibration of first-guess temperatures, results were used to adjust the MLS values to reflect daily means rather than the 0200–1100 UT observation period of the satellite instrument; thereafter the calibration was repeated with the revised MLS temperatures. The resulting temperature time series represents a marked improvement on earlier results calibrated using hydroxyl emission and potassium/K-Lidar observations, as the uncertainty is reduced from 17 to 7 K. These latest results represent a new step toward reliable and continual monitoring of upper mesosphere/lower thermosphere temperature.