BRIDGING METHOD FOR THE JB2006 AND NRLMSISE-00 THERMOSPHERIC DENSITY MODELS IN THE ALTITUDE RANGE OF 140 KM THROUGH 200 KM

Open Access
Author:
Kim, Jung Soo
Graduate Program:
Aerospace Engineering
Degree:
Master of Science
Document Type:
Master Thesis
Date of Defense:
None
Committee Members:
  • Dr David B Spencer, Thesis Advisor
  • David Bradley Spencer, Thesis Advisor
Keywords:
  • JB2006
  • NRLMSISE-00
  • THERMOSPHERIC DENSITY
Abstract:
Density data in the altitude range between 140 km and 200 km are sparse. Thus, it is impossible to draw all-encompassing conclusions as to the accuracy of the calibration of thermospheric density models in this altitude region. However, an extrapolation can be achieved in this region with density data from the satellites above, JB2006 model (Jacchia-Bowman model), and with sounding rocket data from below, NRLMSISE-00 model (Naval Research Laboratory¡¯s Mass Spectrometer Incoherent Scatter Extension 2000), thus connecting the two regions to establish a thermospheric density profile for the region in question. This thesis presents two possible methods to bridge the density prediction from the lower validity region of the JB2006 model with the density prediction from the upper validity region of the NRLMSISE-00 model.