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Water Vapor Radiometry in Geodetic Applications

  • Chapter
Geodetic Refraction

Abstract

The technology that is being used now in geodesy offers the potential to measure distances as large as several thousand kilometers with accuracies of 2 to 5 cm as described by Shapiro and Knight (1970) and Resch (1980). The geophysical information content at this level of accuracy is enormous. The measurement techniques divide according to the wavelength sensitivity of the detection apparatus. At optical wavelengths, the principal technique is satellite laser ranging. At microwave frequencies there are ranging systems and interferometric systems. One of the principal advantages of the microwave systems is the “all-weather” capability. The principal disadvantage of the microwave systems is the sensitivity to propagation path effects that are induced by atmospheric water vapor. Water vapor is not a well mixed atmospheric constituent and it is impossible to model with high accuracy. If our accuracy goal in a position or baseline measurement exceeds 2 to 5 cm, then we must measure the line-of-sight vapor delay. The most promising technique available for making the vapor measurement is the use of passive microwave radiometry.

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References

  • Armstrong JW, Scramek RA (1982) Observations of tropospheric phase scintillations at 5 GHz on vertical paths. Radio Sci 17: 1579–1586

    Article  Google Scholar 

  • Berman AL (1976) The prediction of zenith range refraction from surface measurements. JPL Tech Rept 32-1602: 1–40

    Google Scholar 

  • Bean BR, Dutton EJ (1968) Radio Meteorology. Dover Publ, New York, NY

    Google Scholar 

  • Claflin ES, Wu SC, Resch GM (1978) Microwave radiometer measurements of water vapor path delay: data reduction techniques. DSN Prog Rept 42-48: 22–27 (Jet Propulsion Laboratory)

    Google Scholar 

  • Chandrasekhar S (1950) Radiative Transfer. Oxford Univ. Press, New Jersey

    Google Scholar 

  • Chao CC (1971) Tropospheric range effect due to simulated inhomogeneities by ray tracing. DSN Prog Rep 32-1526: 57–66

    Google Scholar 

  • Decker MT, Westwater ER, Guiraud FO (1978) Experimental evaluation of groundbased microwave radiometric sensing of atmospheric temperature and water vapor profiles. J. Appl Meteorology 17: 1788–1795

    Article  Google Scholar 

  • Dickinson DF, Grossi MD, Pearlman MR (1970) Refractive corrections in high-accuracy radio interferometry. J Geophys Res 75: 1619–1621

    Article  Google Scholar 

  • Dravskikh AF, Finkelstein MA (1979) Tropospheric limitations in phase and frequency coordinate measurements in astronomy. Astrophys. Space Sci 60: 251–265

    Article  Google Scholar 

  • Elgered G, Ronnang BO, Askne JIH (1982) Measurements of atmospheric water vapor with microwave radiometry. Radio Sci 17: 1258–1264

    Article  Google Scholar 

  • Gardner CS (1976) Effects of horizontal refractivity gradients on the accuracy of laser ranging to satellites. Radio Sci 11: 1037–1044

    Article  Google Scholar 

  • Gaut NE (1968) Studies of atmospheric water vapor by means of passive microwave techniques. PhD thesis, Massachusetts Institute of Technology, Research Laboratory of Elect Tech Rept 467, Cambridge, MA

    Google Scholar 

  • Guiraud FO, Howard J, Hogg DC (1979) A dual-channel microwave radiometer for measurement of precipitable water vapor and liquid. IEEE Trans Geoscience Elect GE 17: 129–136

    Article  Google Scholar 

  • Guiraud FO, Decker MT, Westwater ER (1971) Experimental investigation of the correction of electrical range errors by passive microwave radiometry. NOAA Tech Rept ERL 221-WPL 19: 1–90

    Google Scholar 

  • Hess SL (1959) Introduction to Theoretical Meteorology. Holt, Rinehart, & Winston, New York

    Google Scholar 

  • Hogg DC, Guiraud FO, Sweezy WB (1981) The short term temporal spectrum of precipitable water vapor. Sci 213: 1112–1113

    Article  Google Scholar 

  • Hopfield HS (1971) Tropospheric effect on electromagnetically measured range: prediction from surface weather data. Radio Sci 6: 357–367

    Article  Google Scholar 

  • Hopfield HS (1976) Tropospheric effects on signals at very low elevation angles. APL/JHU Tech Memo 1291: 1–39

    Google Scholar 

  • Janssen MA, Bednarczek SM, Gulkis S, Marlin HW, Smoot GF (1979) Pattern measurements of a low-sidelobe horn antenna. IEEE Trans Ant and Prop AP 27: 551–555

    Article  Google Scholar 

  • Lynn KJW, Gubbay JS (1975) The effect of the earth’s atmosphere on baseline determinations by very long baseline interferometry. WRE Tech Note-1312, Australian Defence Scientific Service

    Google Scholar 

  • Mathur NC, Grossi MD, Pearlman MR (1970) Atmospheric effects in very long baseline interferometry. Radio Sci 5: 1253–1261

    Article  Google Scholar 

  • Menius AC, Martin CF, Layson WM, Flagg RS (1964) Tropospheric refractions using a microwave radiometer. Tech Staff Memo 19, Pan American World Airways

    Google Scholar 

  • Moran JM, Rosen R (1980) The estimation of the propagation delay through the troposphere from microwave radiometer data. Radio Sci 15: 235–244

    Article  Google Scholar 

  • Price RM (1976) Radiometer Fundamentals. In: Meeks ML (ed) Methods of Experimental Physics. Academic Press, New York, vol 12 part B

    Google Scholar 

  • Reber EE, Swope JR (1972) On the correlation of the total precipitable water in a vertical column and absolute humidity. J Appl Meterology 11: 1322–1325

    Article  Google Scholar 

  • Resch GM, Claflin ES (1979) Microwave radiometry as a tool to calicalibrate tropospheric water-vapor delay. NASA Conf. Publ 2115: 377–384

    Google Scholar 

  • Resch GM (1980) Water Vapor — the wet blanket of microwave inter-interferometry. In: Deepak, Wilkerson, Ruhnke (eds) Atmospheric Water Vapor. Academic Press, New York, p 265–282

    Google Scholar 

  • Resch GM, Chavez MC, Yamane NI (1982) Description and overview of an instrument designed to measure line-of-sight delay due to water vapor. TDA Prog Rept 42-72: 1–19 (Jet Propulsion Laboratory)

    Google Scholar 

  • Resch GM, Hogg DE, Napier P (1983) Correction of interferometric phases using water vapor radiometers. Radio Sci (in preparation)

    Google Scholar 

  • Schaper Jr LW, Staelin DH, Waters JW (1970) The estimation of tropospheric electrical path length by microwave radiometry. Proc IEEE 58: 272–273

    Article  Google Scholar 

  • Shapiro II, Knight CA (1970) Geophysical applications of long-baseline radio interferometry. In: Masinha, Smylie, Beck (eds) Earthquake displacement fields and the rotation of the earth. Reidel Publ, Holland, p 284–301

    Chapter  Google Scholar 

  • Smith Jr EK, Weintraub S (1953) The constants in the equation for atmospheric refractive index at radio frequencies, Proc IRE 41: 1035–1057

    Article  Google Scholar 

  • Snider JB, Westwater ER (1969) Atmospheric attenuation at 15, 31, and 53 GHz. ESSA Tech Rept ERL 156-WPL: 11

    Google Scholar 

  • Staelin DH (1966) Measurements and interpretation of the microwave spectrum of the terrestial atmosphere near 1-cm wavelength. J Geophys Res 71: 2875–2882

    Google Scholar 

  • Thompson MC (1975) Effects of the troposphere on the propagation time of microwave signals. Radio Sci 7: 727–733

    Article  Google Scholar 

  • Tiuri ME (1966) Radio-Telescope Receivers. In: Kraus JD (ed) Radio Astronomy. McGraw-Hill, New York

    Google Scholar 

  • Wallace KS, Davidson JM, Niell AE, Trask DW, Resch GM, Brunn ML, Vegos CJ (1982) Southern California VLBI measurements: data quality tests. EOS 63: 301

    Google Scholar 

  • Westwater ER (1967) An analysis of the correction of range errors due to atmospheric refraction by microwave radiometric techniques. ESSA Tech Rept IER 30-ITSA30. Available from National Tech Info Service, Springfield, VA.

    Google Scholar 

  • Westwater, ER (1978) “The Accuracy of Water Vapor and Cloud Liquid Determinations by Dual-Frequency Ground Based Microwave Radiometry”, Radio Science, V13, 677–685

    Article  Google Scholar 

  • Westwater ER, Guiraud FO (1980) Ground-based microwave radiometric retrieval of precipitable water vapor in the presence of clouds with high liquid content. Radio Sci, 15: 947–957

    Article  Google Scholar 

  • Winn FB, Wu SC, Resch GM, Chao CC, von Roos OH (1976) Atmospheric water vapor calibrations: Radiometer Technique. DSN Prog Rept 42-32: 38–49 (Jet Propulsion Laboratory)

    Google Scholar 

  • Wu SC (1979) Optimum frequencies of a passive microwave radiometer for tropospheric path-length correction. IEEE Trans Ant & prop AP 27: 233–239

    Article  Google Scholar 

  • Wu SC (1980a) Error estimation for ORION baseline vector determination. DSN Prog Rept 42-57: 16–31 (Jet Propulsion Laboratory)

    Google Scholar 

  • Wu SC (1980b) Atmospheric Effects on ARIES baseline determination. DSN Prog Rept 42: 61: 1–6 (Jet Propulsion Laboratory)

    Google Scholar 

Download references

Authors
  1. G. M. Resch
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Editors and Affiliations

  1. R & D Geodesy, Wild Heerbrugg Ltd., CH-9435, Heerbrugg, Switzerland

    Fritz K. Brunner

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© 1984 Springer-Verlag, Berlin Heidelberg

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Resch, G.M. (1984). Water Vapor Radiometry in Geodetic Applications. In: Brunner, F.K. (eds) Geodetic Refraction. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-45583-4_5

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  • DOI: https://doi.org/10.1007/978-3-642-45583-4_5

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-13830-3

  • Online ISBN: 978-3-642-45583-4

  • eBook Packages: Springer Book Archive

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