Planetary-scale wave structures of the earth’s atmosphere revealed from the COSMIC observations

Anisetty, S. K.A.V.Prasad Rao; Brahmanandam, P. S.; Uma, G.; Babu, A. Narendra; Huang, Ching Yuang; Kumar, G. Anil; Ram, S. Tulasi; Wang, Hsiao Lan; Chu, Yen Hsyang

doi:10.1007/s13351-014-0101-y

Cited by 2 publications

(1 citation statement)

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“…Upper-air measurements from radiosondes (commonly called weather balloons) have long been the primary source of information, with measurements going back more than 60 years and the radiosonde measurements are unique with regard to the length of the available time series as well as with their high vertical resolution [21] . The unique features of radiosondes might have instigated several researchers around the world to make validation studies of various atmospheric parameters (temperatures, winds, and humidity and others) between radiosonde-measured and other remote sensing instruments including, advanced microwave sounding units (AMSU) and the microwave humidity sounders [22] , radio occultation (RO) technique performed on COSMIC micro-satellites [23][24] , and ground-based wind profiling radars [25] . Table 1.…”

Section: Data and Methods Of Analysismentioning

confidence: 99%

Anomalous wind circulation over Taipei, Taiwan during the northern winter seasons of 2004 and 2005- A case study

Babu¹,

Kumar²,

Brahmanandam³

et al. 2018

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This research reports, for the first time, an anomalous wind circulation over Taipei (Latitude 25.030N, Longitude 121.510E), Taiwan during the northern hemisphere winter season (December, January, and February) of years 2004 and 2005. The anomalous wind circulation of meridional winds, which showed southward directions during the winter seasons of 2004 and 2005 instead of northward winds, is noticed from one kilometer altitude range (lower troposphere) and that trend continued till around 20 km altitude range (lower stratosphere). To ascertain whether such a disturbed nature of wind pattern existed over nearby locations to Taipei, we have analyzed radiosonde-measured meridional and zonal winds over four nearby stations station to Taipei including, Roig, Xiamen, Minami and Fuzhou. Surprisingly, no anomalous wind behavior is seen except over Taipei during the northern winter seasons of 2004 and 2005. On the other hand, the European Centre for Medium-Range Weather Forecasts (ECMWF) model-predicted winds do not show any anomalous wind patterns over Taipei and other nearby stations, possibly due to the large averaging of internal variabilities of reanalysis databases. The plausible physical mechanisms of these disturbed meridional wind patterns are not understood at this juncture, but it is believed that local winds and atmospheric pollutants might have created an amicable environment as to provide such a disturbed meridional wind pattern over Taipei, Taiwan in the winter season of 2004 and 2005.

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