Anthes RA, Rocken C, Kuo YH (2000) Applications of COSMIC to meteorology and climate. Terr

Atmos Oceanic Sci 11(1):115-156 Anthes RA, et al. (2008) The COSMIC/FORMOSAT-3 Mission: Early results. Bull Am Meteorol

Soc 89:313-333, doi:10.1175/BAMS-89-3-313 Beyerle G, Heise S, Kaschenz J, Konig-Langlo G, Reigber C, Schmidt T, Wickert J (2006) Refrac-tivity Biases in GNSS Occultation Data. In: Foelsche et al. 2006a, pp 37-43, doi:10.1007/ 3-540-34121-8.4

Borsche M, Gobiet A, Steiner AK, Foelsche U, Kirchengast G, Schmidt T, Wickert J (2006) Pre-Operational Retrieval of Radio Occultation Based Climatologies. In: Foelsche et al. 2006a, pp 315-323, doi:10.1007/3-540-34121-8_26 Borsche M, Kirchengast G, Foelsche U (2007) Tropical tropopause climatology as observed with radio occultation measurements from CHAMP compared to ECMWF and NCEP analyses. Geophys Res Lett 34(L03702), doi:10.1029/2006GL027918 Christy JR, Spencer RW (2005) Correcting temperature data sets. Science 310(5750):972-973 von Engeln A (2006) A first test of climate monitoring with radio occultation instruments: Comparing two processing centers. Geophys Res Lett 33(L22705), doi:10.1029/2006GL027767 von Engeln A, Teixeira J, Wickert J, Buehler SA (2005) Using CHAMP radio occultation data to determine the top altitude of the planetary boundary layer. Geophys Res Lett 32(L06815), doi:10.1029/2004GL022168 European Centre for Medium-Range Weather Forecasts (ECMWF) (2004) IFS Documentation CY28rl, Reading, UK

Foelsche U, Kirchengast G, Steiner AK (2003) Global climate monitoring based on CHAMP/GPS radio occultation data. In: First CHAMP Mission Results for Gravity, Magn. and Atm. Studies. Reigber C et al. (eds), Springer, Berlin Heidelberg, pp 397-407 Foelsche U, Kirchengast G, Steiner AK (eds) (2006a) Atmosphere and Climate: Studies by Occultation Methods, Springer, Berlin Heidelberg, 336 pp, doi:10.1007/3-540-34121-8 Foelsche U, Gobiet A, Steiner AK, Borsche M, Wickert J, Schmidt T, Kirchengast G (2006b) Global Climatologies Based on Radio Occultation Data: The CHAMPCLIM Project. In: Foelsche et al. 2006a, pp 303-314, doi:10.1007/3-540-34121-8_25 Foelsche U, Borsche M, Steiner AK, Gobiet G, Pirscher B, Kirchengast G, Wickert J, Schmidt T (2008a) Observing upper troposphere-lower stratosphere climate with radio occultation data from the CHAMP satellite. Clim Dyn 31:49-65, doi:10.1007/s00382-007-0337-7 Foelsche U, Kirchengast G, Steiner AK, Kornblueh L, Manzini E, Bengtsson L (2008b) An observing system simulation experiment for climate monitoring with GNSS radio occultation data: Setup and test bed study. J Geophys Res 113(D11108), doi:10.1029/2007JD009231 Foelsche U, Pirscher B, Borsche M, Kirchengast G, Wickert J (2009) Assessing the climate monitoring utility of radio occultation data: From CHAMP to FORMOSAT-3/COSMIC. Terr Atmos Oceanic Sci 20(1):155-170, doi:10.3319/TAO.2008.01.14.01(F3C) GCOS (2004) Global Climate Observing System Implementation Plan for the Global Observing

System for Climate in Support of UNFCCC. WMO-TD 1219, WMO, Geneva, 136 pp Gobiet A, Kirchengast G (2004) Advancements of GNSS radio occultation retrieval in the upper stratosphere for optimal climate monitoring utility. J Geophys Res 109(D24110), doi:10.1029/2004JD005117 Gobiet A, Foelsche U, Steiner AK, Borsche M, Kirchengast G, Wickert J (2005) Climatological validation of stratospheric temperatures in ECMWF operational analyses with CHAMP radio occultation data. Geophys Res Lett 32(L12806), doi:10.1029/2005GL022617 Gobiet A, Kirchengast G, Manney GL, Borsche M, Retscher C, Stiller G (2007) Retrieval of temperature profiles from CHAMP for climate monitoring: Intercomparison with Envisat MIPAS and GOMOS and different analyses. Atmos Chem Phys 7:3519-3536 Hajj GA, Kursinski ER, Romans LJ, Bertiger WI, Leroy SS (2002) A technical description of atmospheric sounding by GPS occultation. J Atmos Solar-Terr Phys 64:451-469

Hajj GA, Ao CO, Iijima PA, Kuang D, Kursinski ER, Mannucci AJ, Meehan TK, Romans LJ, de la Torre Juarez M, Yunck TP (2004) CHAMP and SAC-C atmospheric occultation results and intercomparisons. J Geophys Res 109(D06109), doi:10.1029/2003JD003909 Healy SB (2001a) Radio occultation bending angle and impact parameter errors caused by horizontal refractive index gradients in the troposphere: A simulation study. J Geophys Res 106(D11):11875-11889

Healy SB (2001b) Smoothing radio occultation bending angles above 40 km. Ann Geophys 19:459-468

Healy SB (2007) Operational assimilation of GPS radio occultation measurements at ECMWF.

ECMWF Newsl 111:6-11 Ho SP, Kuo YH, Zeng Z, Peterson TC (2007) A comparison of lower stratosphere temperature from microwave measurements with CHAMP GPS RO data. Geophys Res Lett 34(L15701), doi:10.1029/2007GL030202 Ho SP, Goldberg M, Kuo YH, Zou CZ, Schreiner W (2009) Calibration of temperature in the lower stratosphere from microwave measurements using COSMIC radio occultation data: Preliminary results. Terr Atmos Oceanic Sci 20(1), doi:10.3319/TAO.2007.12.06.01(F3C) Karl TR, Hassol SJ, Miller CD, Murray WL (eds) (2006) Temperature trends in the lower atmosphere: Steps for understanding and reconciling differences. Rep by the Climate Change Science Program and the Subcommittee on Global Change Research, Washington DC Kirchengast G (2004) Occultations for probing atmosphere and climate: Setting the scene. In: Occultations for Probing Atmosphere and Climate, Kirchengast G, Foelsche U, Steiner AK (eds), Springer, Berlin Heidelberg, pp 1-8 Kursinski ER, Hajj GA, Schofield JT, Linfield RP, Hardy KR (1997) Observing Earth's atmosphere with radio occultation measurements using the global positioning system. J Geophys Res 102:23429-23465

Leroy SS, Dykema JA, Anderson JG (2006a) Climate Benchmarking Using GNSS Occultation. In:

Foelsche et al. 2006a, pp 287-301, doi:10.1007/3-540-34121-8_24 Leroy SS, Anderson JG, Dykema JA (2006b) Testing climate models using GPS radio occultation:

A sensitivity analysis. J Geophys Res 111(D17105), doi:10.1029/2005JD006145 Mears CA, Wentz FJ (2005) The effect of diurnal correction on satellite-derived lower tropospheric temperature. Science 309:1548-1551, doi:10.1126/science.1114772 Pirscher B, Foelsche U, Lackner BC, Kirchengast G (2007) Local time influence in single-satellite radio occultation climatologies from Sun-synchronous and non-Sun-synchronous satellites. J Geophys Res 112(D11119), doi:10.1029/2006JD007934 Ringer MA, Healy SB (2008) Monitoring twenty-first century climate using GPS radio occultation bending angles. Geophys Res Lett 35(L05708), doi:10.1029/2007GL032462 Rocken C, Anthes R, Exner M, Hunt D, Sokolovskiy S, Ware R, Gorbunov M, Schreiner W, Feng D, Herman B, Kuo YH, Zou X (1997) Analysis and validation of GPS/MET data in the neutral atmosphere. J Geophys Res 102(D25):29849-29866 Rocken C, Kuo YH, Schreiner WS, Hunt D, Sokolovskiy S, McCormick C (2000) COSMIC system description. Terr Atmo Oceanic Sci 11(1):21-52 Schmidt T, Heise S, Wickert J, Beyerle G, Reigber C (2005) GPS radio occultation with CHAMP and SAC-C: global monitoring of thermal tropopause parameters. Atmos Chem Phys 5:1473-1488

Schmidt T, Beyerle G, Heise S, Wickert J, Rothacher M (2006) A climatology of multiple tropopauses derived from GPS radio occultations with CHAMP and SAC-C. Geophys Res Lett 33(L04808), doi:10.1029/2005GL024600 Schreiner W, Rocken C, Sokolovskiy S, Syndergaard S, Hunt D (2007) Estimates of the precision of GPS radio occultations from the COSMIC/FORMOSAT-3 mission. Geophys Res Lett 34(L04808), doi:10.1029/2006GL027557 Schr0der T, Leroy S, Stendel M, Kaas E (2003) Validating the microwave sounding unit stratospheric record using GPS occultation. Geophys Res Lett 30(14):1734, doi:10.1029/ 2003GL017588

Sherwood SC, Lanzante JR, Meyer CL (2005) Radiosonde daytime biases and late-20th century warming. Science 309:1556-1559, doi:10.1126/science.1115640 Sokolovskiy SV (2003) Effect of superrefraction on inversions of radio occultation signals in the lower troposphere. Radio Sci 38(3):1058, doi:10.1029/2002RS002728 Sokolovskiy SV, Kuo YH, Rocken C, Schreiner WS, Hunt D, Anthes RA (2006) Monitoring the atmospheric boundary layer by GPS radio occultation signals recorded in the open-loop mode. Geophys Res Lett 33(12): L12813, doi:10.1029/2006GL025955 Steiner AK, Kirchengast G, Ladreiter HP (1999) Inversion, error analysis, and validation of

GPS/MET occultation data. Ann Geophys 17:122-138 Steiner AK, Kirchengast G, Foelsche U, Kornblueh L, Manzini E, Bengtsson L (2001) GNSS

occultation sounding for climate monitoring. Phys Chem Earth A 26(3):113-124 Steiner AK, Kirchengast G, Borsche M, Foelsche U, Schoengassner T (2007) A multi-year comparison of lower stratospheric temperatures from CHAMP radio occultation data with MSU/AMSU records. J Geophys Res 112(D22110), doi:10.1029/2006JD008283 Steiner AK, Kirchengast G, Borsche M, Foelsche U (2009) Lower stratospheric temperatures from CHAMP RO compared to MSU/AMSU records: An analysis of error sources. In: Steiner A, Pirscher B, Foelsche U, Kirchengast G (eds) New Horizons in Occultation Research, SpringerVerlag, Berlin Heidelberg, doi:10.1007/978-3-642-00321-9_18 Thorne PW, Parker DE, Tett SFB, Jones PD, McCarthy M, Coleman H, Brohan P (2005) Revisiting radiosonde upper air temperatures from 1958 to 2002. J Geophys Res 110(D18105), doi:10.1029/2004JD005753 Untch A, Miller M, Hortal M, Buizza R, Janssen P (2006) Towards a global meso-scale model:

The high-resolution system T799L91 and T399L62 EPS. ECMWF Newsl 108:6-13 Vinnikov KY, Grody NC, Robock A, Stouffer RJ, Jones PD, Goldberg MD (2006) Temperature trends at the surface and in the troposphere. J Geophys Res 111(D03106), doi:10.1029/ 2005JD006392

Ware R, et al. (1996) GPS Sounding of the atmosphere from low earth orbit: Preliminary results.

Bull Am Meteorol Soc 77:19-40 Wickert J, Reigber C, Beyerle G, König R, Marquardt C, Schmidt T, Grunwaldt L, Galas R, Meehan TK, Melbourne WG, Hocke K (2001) Atmosphere sounding by GPS radio occultation: First results from CHAMP. Geophs Res Lett 28(17):3263-3266 Wickert J, Schmidt T, Beyerle G, König R, Reigber C, Jakowski N (2004) The radio occultation experiment aboard CHAMP: Operational data analysis and validation of vertical atmospheric profiles. J Met Soc Japan 82:381-395 Wickert J, Beyerle G, Konig R, Heise S, Grunwaldt L, Michalak G, Reigber C, Schmidt T (2005) GPS radio occultation with CHAMP and GRACE: A first look at a new and promising satellite configuration for global atmospheric sounding. Ann Geophys 23(3):653-658 Wu BH, Chu V, Chen P, Ting T (2005) FORMOSAT-3/COSMIC science mission update. GPS

Solut 9:111-121, doi:10.1007/s10291-005-0140-z Yuan LL, Anthes RA, Ware RH, Rocken C, Bonner WD, Bevis MG, Businger S (1993) Sensing climate change using the global positioning system. J Geophys Res 98(D8):14925-14937 Yunck TP, Liu CH, Ware R (2000) A history of GPS sounding. Terrestr Atmos Ocean Sciences 11:1-20

Was this article helpful?

0 0

Post a comment