| Title | The occurrence of polar cap patches in TEC fluctuations detected using GPS measurements in Southern Hemisphere |
| Author | Krankowski, A.; Shagimuratov, I.I.; Baran, L.W.; Ephishov, I.I.; Tepenitzyna, N.J. |
| Author Affil | Krankowski, A., University of Warmia and Mazury in Olsztyn, Institute of Geodesy, Olsztyn, Poland. Other: WD IZMIRAN, Russian Federation |
| Source | Advances in Space Research, 38(11), p.2601-2609, . Publisher: Elsevier, Oxford- New York, International. ISSN: 0273- 1177 |
| Publication Date | 2006 |
| Notes | In English. 27 refs. GeoRef Acc. No: 286515. CRREL Acc. No: 62006686 |
| Index Terms | detection; geomagnetism; remote sensing; Antarctica--McMurdo Station; polar caps; Antarctica; Casey Station; Davis Station; fluctuations; Global Positioning System; ionosphere; magnetic field; Mawson Station; McMurdo Station; properties; Ross Island; satellite methods; seasonal variations; total electron count |
| Abstract | GPS technique is widely used to study the global structure and dynamics of the ionosphere. This paper presents data on the occurrence of large-scale ionospheric irregularities observed at Antarctic stations McMurdo-MCM4, Casey-CAS1, Mawson-MAW1, and Davis-DAV1 in 2001. The irregularities caused strong Total Electron Content fluctuations. The intensity of TEC fluctuations was estimated with the ROT parameter and rate of TEC index (ROTI) expressed in TECU/min. Storm- time development of TEC fluctuations are presented for two geomagnetic active periods: June and September 2001. Data on temporal variations in TEC along individual satellites passes were also analyzed. Polar patches were associated with deep TEC fluctuations as the TEC enhancements were 2-10 times larger than the background, whereas the TEC increased by 10-50 TECU in about 5-10 min. (mod. journ. abst.) |
| URL | http://hdl.handle.net/10.1016/j.asr.2005.12.006 |
| Publication Type | journal article |
| Record ID | 84594 |