Oscillation modes of humidity over the Amazon basin derived from GPS RO profiles

作者: R. Hierro , P. Llamedo , A. de la Torre , P. Alexander

DOI: 10.1002/2013JD020758

关键词: Amazon rainforestRadio occultationGlobal Positioning SystemLatitudeWavelengthGeologyOscillationClimatologyIonosphereSatellite

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

参考文章(26)
Carlos A. Nobre, Maria Assuncão Silva Dias, Alistair D. Culf, Jan Polcher, John H. C. Gash, José A. Marengo, Roni Avissar, The Amazonian Climate Springer, Berlin, Heidelberg. pp. 79- 92 ,(2004) , 10.1007/978-3-642-18948-7_7
Jeffrey E Richey, Reynaldo Luiz Victoria, Emilio Mayorga, Luis Antonio Martinelli, Robert H Meade, None, Case Study 1: Integrated Analysis of a Humid Tropical Region — The Amazon Basin Springer, Berlin, Heidelberg. pp. 415- 428 ,(2004) , 10.1007/978-3-642-18948-7_34
J. Morlet, Sampling Theory and Wave Propagation SEG Abstracts. ,vol. 1981, pp. 233- 261 ,(1983) , 10.1007/978-3-642-82002-1_12
Hua Yi, Hong Shu, The improvement of the Morlet wavelet for multi-period analysis of climate data Comptes Rendus Geoscience. ,vol. 344, pp. 483- 497 ,(2012) , 10.1016/J.CRTE.2012.09.007
S. V. Sokolovskiy, C. Rocken, D. H. Lenschow, Y.-H. Kuo, R. A. Anthes, W. S. Schreiner, D. C. Hunt, Observing the moist troposphere with radio occultation signals from COSMIC Geophysical Research Letters. ,vol. 34, ,(2007) , 10.1029/2007GL030458
P. Llamedo, A. de la Torre, P. Alexander, D. Luna, T. Schmidt, J. Wickert, A gravity wave analysis near to the Andes Range from GPS radio occultation data and mesoscale numerical simulations: Two case studies Advances in Space Research. ,vol. 44, pp. 494- 500 ,(2009) , 10.1016/J.ASR.2009.04.023
Richard A Anthes, PA Bernhardt, Y Chen, L Cucurull, KF Dymond, D Ector, SB Healy, S-P Ho, DC Hunt, Y-H Kuo, H Liu, K Manning, C McCormick, TK Meehan, W J Randel, C Rocken, W S Schreiner, SV Sokolovskiy, S Syndergaard, DC Thompson, KE Trenberth, T-K Wee, NL Yen, Z Zeng, None, The COSMIC/FORMOSAT-3 Mission: Early Results Bulletin of the American Meteorological Society. ,vol. 89, pp. 313- 333 ,(2008) , 10.1175/BAMS-89-3-313
David Labat, Recent advances in wavelet analyses: Part 1. A review of concepts Journal of Hydrology. ,vol. 314, pp. 275- 288 ,(2005) , 10.1016/J.JHYDROL.2005.04.003