[1] Askne J,Nordius H.Estimation of tropospheric delay for microwaves from surface weather data[J].Radio Science,1987,22:379-386. [2] Bevis M,Businger S, Herring T A, et al.GPS meteorology:Remote sensing of atmospheric water vapor using the global positioning system[J].Journal of Geophysics Research,1992,97:15 787-15 801. [3] Henk Klein Baltink,Hans van der Marel,Andre G A van der Hoeven.Integrated atmospheric water vapor estimates from a regional GPS network[J].Journal of Geophysical Research, 2002,107(D3):4 025-4 033. [4] Galina Dick,Gerd Gendt,Christoph Reigber.Operational Water Vapor Estimation in a Dense German Network[R].IGS 1999 Technical Report, 1999.375-384. [5] Bevis M,Businger S,Chiswell S,et al. GPS meteorology:Mapping zenith wet delays onto precipitable water[J].Journal of Application Meteorology,1994,33:379-386. [6] Wang Xiaoya(王小亚),Zhu Wenyao(朱文耀),Yan Haojian(严豪健),et al.Preliminary results of precipitable water vapor monitored by ground-based GPS[J].Chinese Journal of Atmosphere Sciences(大气科学),1999,23(5):605-612(in Chinese). [7] Arthur Niell.Improved Mapping Function for GPS and VLBI[R].IVS 2000 General Meeting Proceedings, 2000.263-266. [8] Niell A E.Global mapping functions for the atmosphere delay at radio wavelengths[J].Journal of Geophysics Research, 1996,101(B2):3 227-3 246. [9] James L Davis,Gunnar Elgered,Arthur E Niell,et al.Ground-based measurement of gradients in the “wet”radio refractivity of air[J].Radio Science, 1993,28:1 003-1 018. [10] MacMillan D S.Atmospheric gradients from very long baseline interferometry observations[J].Geophysical Research Letters, 1995,22:1 041-1 044. [11] Yoaz E BarSever , Peter M Kroger,Jorgen A Borjesson.Estimating horizontal gradients of tropospheric path delay with a single GPS receiver[J].Journal of Geophysics Research, 1998,103:5 019-5 035. [12] Lubomir P. Gradinarsky, Rüdiger Haas, Gunnar Elgered,et al.Wet path delay and delay gradients inferred from microwave radiometer,GPS and VLBI observations[J].Earth Planets Space, 2000,52:695-698. [13] Korner U, Sonnemann G R,Global three-dimensinal modeling of the water vapor concentration of the mesospheremesopause region and implications with respect to the noctilucent cloud region[J].Journal of Geophysics Research,2001,106:9 639-9 651. [14] Seko H, Shimada S,Nakamura H,et al.Threedimensional distribution of water vapor estimated from tropospheric delay of GPS data in a mesoscale precipitation system of the Baiu front[J].Earth Planets Space, 2000,52:927-933. [15] Duan J, Bevis M, Fang P,et al.GPS Meteorology:Direct estimation of the absolute value of precipitable water[J].Journal of Application Meteorology, 1996,35:830-838. [16] Flores A,Ruffini G,Rius A.4D tropospheric tomography using GPS slant wet delays[J].Annal of Geophysicae,2000,18:223-234. [17] Braun J, Rocken C, Ware R.Validation of line-of-sight water vapor measurements with GPS[J.Radio Science, 2001,36:459-472. [18] Alber C, Ware R, Rocken C,et al.Obtaining single path phase delays from GPS double differences[J].Geophysical Research Letter, 2000,27:2 661-2 664. [19] Randolph H Ware,David W Fulker,Seth A Stein,et al.Real-time national GPS networks:Opportunities for atmospheric sensing[J].Earth Planets Space, 2000,52:901-905. [20] Yuan L L,Richard A,Anthes,et al.Sensing climate change using the global positioning system[J].Journal of GeophysicsResearch, 1993,98: 14 925-14 937. [21] Foelsche U, Kirchengast GTroposphere water vapor imaging by combination of ground-based and spaceborne GNSS sounding data[J].Journal of Geophysics Research, 2001,106:27 221-27 231. [22] Fjeldbo G, Eshleman V R. The atmosphere of Mars analyzed by integral inversion of the Mariner 4 occultation data[J]. Planet Space Science, 1968,16: 1 35-1 059. [23] Fjeldbo G, Kliore A J, Eshleman V R. The neutral atmosphere of Venus as studied with the Mariner 5 radio occultation experiments[J]. Astronomy Journal, 1971,76: 123-140 . [24] Kursinski ER, Hajj G A, Hardy K R, et al. Observing Earth's atmosphere with radio occultation measurements[J]. Journal of Geophysics Research, 1997,102: 23 429-23 465. [25] Flores A, Gradinarsky L P, Elosegui P,et al.Sensing atmospheric structure:Tropospheric tomographic results of the small-scale GPS campaign at the Onsala Space Observatory[J]. Earth Planets Space, 2000,52:941-945. [26] Lowry Anthony R,Rocken Chris,Sokolovskiy,et al.Vertical profiling of atmospheric refractivity from ground-based GPS[J].Radio Science, 2002,37(3):13/1-19. [27] Zuffada C, Hajj G A, Kursinski E R. A novel approach to atmospheric profiling with a mountain-based or air-borne GPS receiver[J]. Journal of Geophysics Research, 1999,104: 24 435-24 447. [28] Gaikovich K P, Sumin M I. Reconstruction of the altitude pro_les of the refractive index, pressure,and temperature of the atmosphere from observations of astronomical refraction[J]. Izvestiya Atmospheric Oceanic Physics, 1986,22: 710-715. [29] Azizov A A, Gaikovich K P, Kashkarov S S. Determination of atmosphere parameters using navigation satellite signals[J]. Radiophys Quantum Electron, 1998,41: 737-751. |