作者: R. Hierro , P. Llamedo , A. de la Torre , P. Alexander
DOI: 10.1002/2013JD020758
关键词: Amazon rainforest 、 Radio occultation 、 Global Positioning System 、 Latitude 、 Wavelength 、 Geology 、 Oscillation 、 Climatology 、 Ionosphere 、 Satellite
摘要: [1] The Global Positioning System radio occultation (GPS RO) technique provides vertical profiles of refractivity from which water vapor can be derived. It is possible to reproduce global, synoptic, and regional climatological patterns. From Formosa Satellite 3/Constellation Observing for Meteorology Ionosphere Climate mission data (2006–2013), the variability moistest region Southern Hemisphere as Amazon basin analyzed. Applying different spatial temporal filters, oscillation modes integrated specific humidity (Q) are found. A slight decreasing trend in Q found during studied period. Zonal this variable averaged time between latitudes presents a main mode wavelength one quarter Earth (T4). secondary at around T6 also after high-pass filtering original signal. In turn, over shows 12 months, while 6 months