Simultaneous Observation of Traveling Ionospheric Disturbances and Traveling Atmospheric Disturbances Using a GPS Receiver Network and the GRACE Satellites

Details Simultaneous Observation of Traveling Ionospheric Disturbances and Traveling Atmospheric Disturbances Using a GPS Receiver Network and the GRACE Satellites Simultaneous Observation of Traveling Ionospheric Disturbances and Traveling Atmospheric Disturbances Using a GPS Receiver Network and the GRACE Satellites

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa33a1070m&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA33A-1070

Physics

2400 Ionosphere (6929), 2427 Ionosphere/Atmosphere Interactions (0335), 2435 Ionospheric Disturbances

Scientific paper

The variations of the thermospheric mass density and the ionospheric electron density inside Large Scale Traveling Ionospheric Disturbances (LSTIDs) were studied with the GRACE accelerometer data and the GPS total electron content (GPS TEC) data. LSTIDs were detected by a GPS receiver network in Japan, GEONET, which is operated by Geographical Survey Institute. The characteristics of the LSTIDs, such as time, location, amplitude, wavelength, and propagation velocity, were derived from the TEC data of GEONET. The thermospheric total mass density at 500km altitude was derived from the high-accuracy accelerometers on board the GRACE satellites. The GRACE satellites flew over the LSTIDs during two events in August 2003 and November 2003. In both two events, wave-like structures of the thermospheric mass density were detected. They propagated from the high latitude to the low latitude in about 300m/s and 500m/s, and the spatial scales of the structures were about 2000km and 2500km, respectively. The velocities and the spatial scales of these Traveling Atmospheric Disturbances (TADs) were similar to those of LSTIDs detected by GEONET TEC in both events. In both two events, the ratio of the perturbation component of the neutral mass density to the background was about 11% and 18%, while that of the TEC was about 6% and 8%. These thermospheric total mass density variations of TADs are interpreted to cause the electron density variations of LSTIDs. We will discuss the relationship between LSTIDs measured by GPS receivers, and TADs detected by the GRACE accelerometers in this presentation.

Affiliated with

Also associated with

No associations

Rating

Simultaneous Observation of Traveling Ionospheric Disturbances and Traveling Atmospheric Disturbances Using a GPS Receiver Network and the GRACE Satellites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Simultaneous Observation of Traveling Ionospheric Disturbances and Traveling Atmospheric Disturbances Using a GPS Receiver Network and the GRACE Satellites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simultaneous Observation of Traveling Ionospheric Disturbances and Traveling Atmospheric Disturbances Using a GPS Receiver Network and the GRACE Satellites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1413574