Water vapor sounding with the far infrared REFIR-PAD spectroradiometer from a high-altitude ground-based station during the ECOWAR campaign
The Radiation Explorer in the Far InfraRed-Prototype for Applications and Development (REFIR-PAD) spectroradiometer was operated from the Testa Grigia Italian-Alps station in March 2007 during the Earth Cooling by Water Vapour Radiation (ECOWAR) measurement campaign, obtaining downwelling radiance s...
| Published in: | Journal of Geophysical Research |
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| Other Authors: | , , , , , , , , , |
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| Language: | English |
| Published: |
American Geophysical Union
2011
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| Online Access: | http://hdl.handle.net/2122/6979 https://doi.org/10.1029/2010JD014530 |
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ftingv:oai:www.earth-prints.org:2122/6979 |
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openpolar |
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Open Polar |
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Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
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ftingv |
| language |
English |
| topic |
tropospheric water vapor IR spectroscopy REFIR-PAD ECOWAR 01. Atmosphere::01.01. Atmosphere::01.01.01. Composition and Structure 01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques |
| spellingShingle |
tropospheric water vapor IR spectroscopy REFIR-PAD ECOWAR 01. Atmosphere::01.01. Atmosphere::01.01.01. Composition and Structure 01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques Bianchini, G. Palchetti, L. Muscari, G. Fiorucci, I. Di Girolamo, P. Di Iorio, T. Water vapor sounding with the far infrared REFIR-PAD spectroradiometer from a high-altitude ground-based station during the ECOWAR campaign |
| topic_facet |
tropospheric water vapor IR spectroscopy REFIR-PAD ECOWAR 01. Atmosphere::01.01. Atmosphere::01.01.01. Composition and Structure 01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques |
| description |
The Radiation Explorer in the Far InfraRed-Prototype for Applications and Development (REFIR-PAD) spectroradiometer was operated from the Testa Grigia Italian-Alps station in March 2007 during the Earth Cooling by Water Vapour Radiation (ECOWAR) measurement campaign, obtaining downwelling radiance spectra in the 100–1100 cm−1 range, under clear-sky conditions and in the presence of cirrus clouds. The analysis of these measurements has proven that the instrument is capable of determining precipitable water vapor with a total uncertainty of 5–7% by using the far-infrared rotational band of water. The measurement is unaffected by the presence of cirri, whose optical depth can be instead retrieved as an additional parameter. Information on the vertical profiles of water vapor volume mixing ratio and temperature can also be retrieved for three altitude levels. The ability to measure the water vapor column with a simple, uncooled instrument, capable of operating continuously and with a time resolution of about 10 min, makes REFIR-PAD a very valuable instrument for meteorological and climatological studies for the characterization of the water vapor distribution. Published D02310 1.7. Osservazioni di alta e media atmosfera 1.10. TTC - Telerilevamento JCR Journal reserved |
| author2 |
Bianchini, G.; Istituto di Fisica Applicata “Nello Carrara,” Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy Palchetti, L.; Istituto di Fisica Applicata “Nello Carrara,” Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy Muscari, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Fiorucci, I.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Di Girolamo, P.; Dipartimento di Ingegneria e Fisica dell’Ambiente, Università della Basilicata, Potenza, Italy Di Iorio, T.; Dipartimento di Fisica, Università di Roma “La Sapienza,” Rome, Italy Istituto di Fisica Applicata “Nello Carrara,” Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Dipartimento di Ingegneria e Fisica dell’Ambiente, Università della Basilicata, Potenza, Italy Dipartimento di Fisica, Università di Roma “La Sapienza,” Rome, Italy |
| format |
Article in Journal/Newspaper |
| author |
Bianchini, G. Palchetti, L. Muscari, G. Fiorucci, I. Di Girolamo, P. Di Iorio, T. |
| author_facet |
Bianchini, G. Palchetti, L. Muscari, G. Fiorucci, I. Di Girolamo, P. Di Iorio, T. |
| author_sort |
Bianchini, G. |
| title |
Water vapor sounding with the far infrared REFIR-PAD spectroradiometer from a high-altitude ground-based station during the ECOWAR campaign |
| title_short |
Water vapor sounding with the far infrared REFIR-PAD spectroradiometer from a high-altitude ground-based station during the ECOWAR campaign |
| title_full |
Water vapor sounding with the far infrared REFIR-PAD spectroradiometer from a high-altitude ground-based station during the ECOWAR campaign |
| title_fullStr |
Water vapor sounding with the far infrared REFIR-PAD spectroradiometer from a high-altitude ground-based station during the ECOWAR campaign |
| title_full_unstemmed |
Water vapor sounding with the far infrared REFIR-PAD spectroradiometer from a high-altitude ground-based station during the ECOWAR campaign |
| title_sort |
water vapor sounding with the far infrared refir-pad spectroradiometer from a high-altitude ground-based station during the ecowar campaign |
| publisher |
American Geophysical Union |
| publishDate |
2011 |
| url |
http://hdl.handle.net/2122/6979 https://doi.org/10.1029/2010JD014530 |
| geographic |
Alta |
| geographic_facet |
Alta |
| genre |
Arctic |
| genre_facet |
Arctic |
| op_relation |
Journal of Geophysical Research /116 (2011) http://hdl.handle.net/2122/6345 Bhawar, R., et al. (2008), Spectrally resolved observations of Earth’s emission spectrum in the H2O rotation band, Geophys. Res. Lett., 35, L04812, doi:10.1029/2007GL032207. Bianchini, G., and L. Palchetti (2008), Technical Note: REFIR‐PAD level 1 data analysis and performance characterization, Atmos. Chem. Phys., 8, 3817–3826. Bianchini, G., L. Palchetti, and B. Carli (2006), A wide‐band nadir‐sounding spectroradiometer for the characterization of the Earth’s outgoing longwave radiation, Proc. SPIE Int. Soc. Opt. Eng., 6361, 63610A. Bianchini, G., L. Palchetti, A. Baglioni, and F. Castagnoli (2007), Farinfrared spectrally resolved broadband emission of the atmosphere from Morello and Gomito mountains near Florence, Proc. SPIE Int. Soc. Opt. Eng., 6745, 674518. Bösenberg, J. (1998), Ground‐based differential absorption lidar for watervapor and temperature profiling, Appl. Opt., 37, 3845–3860. Clough, S. A., M. J. Iacono, and J. L. Moncet (1992), Line‐by‐line calculations of atmospheric fluxes and cooling rates: Application to water vapor, J. Geophys. Res., 97, 15,761–15,785, doi:10.1029/92JD01419. Clough, S. A., M. W. Shephard, E. J. Mlawer, J. S. Delamere, M. J. Iacono, K. Cady‐Pereira, S. Boukabara, and P. D. Brown (2005), Atmospheric radiative transfer modeling: a summary of the AER codes: Short communication, J. Quant. Spectrosc. Radiat. Transfer, 91, 233–244. Delamere, J. S., S. A. Clough, V. H. Payne, E. J. Mlawer, D. D. Turner, and R. R. Gamache (2010), A far‐infrared radiative closure study in the Arctic: Application to water vapor, J. Geophys. Res., 115, D17106, doi:10.1029/2009JD012968. de Zafra, R. L., A. Parrish, P. M. Solomon, and J. W. Barrett (1983), A quasi continuous record of atmospheric opacity at l = 1.1 mm over 34 days at Mauna Kea observatory, Int. J. Infrared Millimeter Waves, 4, 757–765. Di Girolamo, P., R. Marchese, D. N. Whiteman, and B. B. Demoz (2004), Rotational Raman Lidar measurements of atmospheric temperature in the UV, Geophys. Res. Lett., 31, L01106, doi:10.1029/2003GL018342. Di Girolamo, P., D. Summa, and R. Ferretti (2009), Rotational Raman Lidar measurements for the characterization of stratosphere‐troposphere exchange mechanisms, J. Atmos. Oceanic Technol., 26, 1742–1762. Divakarla, M. G., C. D. Barnet, M. D. Goldberg, L. M. McMillin, E. Maddy, W. Wolf, L. Zhou, and X. Liu (2006), Validation of Atmospheric Infrared Sounder temperature and water vapor retrievals with matched radiosonde measurements and forecasts, J. Geophys. Res., 111, D09S15, doi:10.1029/ 2005JD006116. Elliott, W. P., and D. J. Gaffen (1991), On the utility of radiosonde humidity archives for climate studies, Bull. Am. Meteorol. Soc., 72, 1507–1520. England, M. N., R. A. Ferrare, S. H. Melfi, D. N. Whiteman, and T. A. Clark (1992), Atmospheric water vapor measurements: Comparison of microwave radiometry and lidar, J. Geophys. Res., 97, 899–916, doi:10.1029/91JD02384. Fiorucci, I., et al. (2008), Measurements of low amounts of precipitable water vapor by millimeter wave spectroscopy: An intercomparison with radiosonde, Raman lidar, and Fourier transform infrared data, J. Geophys. Res., 113, D14314, doi:10.1029/2008JD009831. Gordon, I. E., L. S. Rothman, R. R. Gamache, D. Jaquemart, C. Boone, P. F. Bernath, M. W. Shephard, J. S. Delamere, and S. A. Clough (2007), Current updates of the water‐vapor line list in HITRAN: A new “Diet” for air‐broadened half‐widths, J. Quant. Spectrosc. Radiat. Transfer, 108, 389–402, doi:10.1016/j.jqsrt.2007.06.009. James, F. (1994), Minuit, function minimization and error analysis, reference manual, D506, CERN, Geneva, Switzerland. Kiehl, J. T., and K. E. Trenberth (1997), Earth’s Annual Global Mean Energy Budget, Bull. Am. Meteorol. Soc., 78, 197–208. Kneizys, F. X., E. P. Shettle, W. O. Gallery, J. H. Chetwynd Jr., L. W. Abreu, J. E. A. Selby, R. W. Fenn, and R. A. McClatchey (1980), Atmospheric transmittance/radiance: Computer code LOWTRAN 5, AFGLTR‐ 80‐0670, Air Force Geophys. Lab., Hanscom AFB, Mass. Miloshevich, L. M., A. Paukkunen, H. Vömel, and S. J. Oltmans (2004), Development and validation of a time‐lag correction for Vaisala radiosonde humidity measurements, J. Atmos. Oceanic Technol., 21, 1305– 1327. Niro, F., K. Jucks, and J.‐M. Hartmann (2005), Spectral calculations in central and wing regions of CO2 IR bands, IV: Software and database for the computation of atmospheric spectra, J. Quant. Spectrosc. Radiat. Transfer, 95, 469–481. Palchetti, L., A. Barbis, J. E. Harries, and D. Lastrucci (1999), Design and mathematical modelling of the space‐borne far‐infrared Fourier transform spectrometer for REFIR experiment, Infrared Phys. Technol., 40, 367–377. Palchetti, L., G. Bianchini, F. Castagnoli, B. Carli, C. Serio, F. Esposito, V. Cuomo, R. Rizzi, and T. Maestri (2005), Breadboard of a Fouriertransform spectrometer for the Radiation Explorer in the Far Infrared atmospheric mission, Appl. Opt., 44, 2870–2878. Palchetti, L., C. Belotti, G. Bianchini, F. Castagnoli, B. Carli, U. Cortesi, M. Pellegrini, C. Camy‐Peyret, P. Jeseck, and Y. Té (2006), Technical note: First spectral measurement of the Earth’s upwelling emission using an uncooled wideband Fourier transform spectrometer, Atmos. Chem. Phys., 6, 5025–5030. Palchetti, L., G. Bianchini, B. Carli, U. Cortesi, and S. Del Bianco (2007), Measurement of the water vapour vertical profile and of the Earth’s outgoing far infrared flux, Atmos. Chem. Phys. Discuss., 7, 17,741–17,767. Rizzi, R., B. Carli, J. E. Harries, J. Leotin, C. Serio, A. Sutera, B. Bizzarri, R. Bonsignori, and S. Peskett (2001), Mission objectives and instrument requirements for the (REFIR) Radiation Explorer in the Far‐InfraRed mission: An outline after the end of phase B0, in Current Problems in Atmospheric Radiation, edited by W. L. Smith and Y. M. Timofeyev, pp. 567–570, A. Deepak, Hampton, Va. Rothman, L. S., et al. (2005), The HITRAN 2004 molecular spectroscopic database, J. Quant. Spectrosc. Radiat. Transfer, 96, 139–204. Serio, C., F. Esposito, G. Masiello, G. Pavese, M. R. Calvello, G. Grieco, V. Cuomo, H. L. Buijs, and C. B. Roy (2008), Interferometer for groundbased observations of emitted spectral radiance from the troposphere: Evaluation and retrieval performance, Appl. Opt., 47, 3909–3919. Shephard, M. W., S. A. Clough, V. H. Payne, W. L. Smith, S. Kireev, and K. E. Cady‐Pereira (2009), Performance of the line‐by‐line radiative transfer model (LBLRTM) for temperature and species retrievals: IASI case studies from JAIVEx, Atmos. Chem. Phys., 9, 7397–7417. Sinha, A., and J. E. Harries (1995), Water vapour and greenhouse trapping: The role of far infrared absorption, Geophys. Res. Lett., 22, 2147–2150, doi:10.1029/95GL01891. Smith, W. L., W. F. Feltz, R. O. Knuteson, H. E. Revercomb, H. M. Woolf, and H. B. Howell (1999), The retrieval of planetary boundary layer structure using ground‐based infrared spectral radiance measurement, J. Atmos. Oceanic Technol., 16, 323–333. Tobin, D. C., et al. (1999), Downwelling spectral radiance observations at the SHEBA ice station: Water vapor continuum measurements from 17 to 26mm, J. Geophys. Res., 104, 2081–2092, doi:10.1029/1998JD200057. Vömel, H., H. Selkirk, L. Miloshevich, J. Valverde‐Canossa, J. Valdés, E. Kyrö, R. Kivi, W. Stolz, G. Peng, and J. A. Diaz (2007), Radiation dry bias of the Vaisala RS92 humidity sensor, J. Atmos. Oceanic Technol., 24, 953–963. Wang, J. Y. (1974), On the estimation of low‐altitude water vapor profiles from ground‐based infrared measurements, J. Atmos. Sci., 31, 513–521. http://hdl.handle.net/2122/6979 doi:10.1029/2010JD014530 |
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ftingv:oai:www.earth-prints.org:2122/6979 2023-05-15T14:28:28+02:00 Water vapor sounding with the far infrared REFIR-PAD spectroradiometer from a high-altitude ground-based station during the ECOWAR campaign Bianchini, G. Palchetti, L. Muscari, G. Fiorucci, I. Di Girolamo, P. Di Iorio, T. Bianchini, G.; Istituto di Fisica Applicata “Nello Carrara,” Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy Palchetti, L.; Istituto di Fisica Applicata “Nello Carrara,” Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy Muscari, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Fiorucci, I.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Di Girolamo, P.; Dipartimento di Ingegneria e Fisica dell’Ambiente, Università della Basilicata, Potenza, Italy Di Iorio, T.; Dipartimento di Fisica, Università di Roma “La Sapienza,” Rome, Italy Istituto di Fisica Applicata “Nello Carrara,” Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Dipartimento di Ingegneria e Fisica dell’Ambiente, Università della Basilicata, Potenza, Italy Dipartimento di Fisica, Università di Roma “La Sapienza,” Rome, Italy 2011-01-28 http://hdl.handle.net/2122/6979 https://doi.org/10.1029/2010JD014530 en eng American Geophysical Union Journal of Geophysical Research /116 (2011) http://hdl.handle.net/2122/6345 Bhawar, R., et al. (2008), Spectrally resolved observations of Earth’s emission spectrum in the H2O rotation band, Geophys. Res. Lett., 35, L04812, doi:10.1029/2007GL032207. Bianchini, G., and L. Palchetti (2008), Technical Note: REFIR‐PAD level 1 data analysis and performance characterization, Atmos. Chem. Phys., 8, 3817–3826. Bianchini, G., L. Palchetti, and B. Carli (2006), A wide‐band nadir‐sounding spectroradiometer for the characterization of the Earth’s outgoing longwave radiation, Proc. SPIE Int. Soc. Opt. Eng., 6361, 63610A. Bianchini, G., L. Palchetti, A. Baglioni, and F. Castagnoli (2007), Farinfrared spectrally resolved broadband emission of the atmosphere from Morello and Gomito mountains near Florence, Proc. SPIE Int. Soc. Opt. Eng., 6745, 674518. Bösenberg, J. (1998), Ground‐based differential absorption lidar for watervapor and temperature profiling, Appl. Opt., 37, 3845–3860. Clough, S. A., M. J. Iacono, and J. L. Moncet (1992), Line‐by‐line calculations of atmospheric fluxes and cooling rates: Application to water vapor, J. Geophys. Res., 97, 15,761–15,785, doi:10.1029/92JD01419. Clough, S. A., M. W. Shephard, E. J. Mlawer, J. S. Delamere, M. J. Iacono, K. Cady‐Pereira, S. Boukabara, and P. D. Brown (2005), Atmospheric radiative transfer modeling: a summary of the AER codes: Short communication, J. Quant. Spectrosc. Radiat. Transfer, 91, 233–244. Delamere, J. S., S. A. Clough, V. H. Payne, E. J. Mlawer, D. D. Turner, and R. R. Gamache (2010), A far‐infrared radiative closure study in the Arctic: Application to water vapor, J. Geophys. Res., 115, D17106, doi:10.1029/2009JD012968. de Zafra, R. L., A. Parrish, P. M. Solomon, and J. W. Barrett (1983), A quasi continuous record of atmospheric opacity at l = 1.1 mm over 34 days at Mauna Kea observatory, Int. J. Infrared Millimeter Waves, 4, 757–765. Di Girolamo, P., R. Marchese, D. N. Whiteman, and B. B. Demoz (2004), Rotational Raman Lidar measurements of atmospheric temperature in the UV, Geophys. Res. Lett., 31, L01106, doi:10.1029/2003GL018342. Di Girolamo, P., D. Summa, and R. Ferretti (2009), Rotational Raman Lidar measurements for the characterization of stratosphere‐troposphere exchange mechanisms, J. Atmos. Oceanic Technol., 26, 1742–1762. Divakarla, M. G., C. D. Barnet, M. D. Goldberg, L. M. McMillin, E. Maddy, W. Wolf, L. Zhou, and X. Liu (2006), Validation of Atmospheric Infrared Sounder temperature and water vapor retrievals with matched radiosonde measurements and forecasts, J. Geophys. Res., 111, D09S15, doi:10.1029/ 2005JD006116. Elliott, W. P., and D. J. Gaffen (1991), On the utility of radiosonde humidity archives for climate studies, Bull. Am. Meteorol. Soc., 72, 1507–1520. England, M. N., R. A. Ferrare, S. H. Melfi, D. N. Whiteman, and T. A. Clark (1992), Atmospheric water vapor measurements: Comparison of microwave radiometry and lidar, J. Geophys. Res., 97, 899–916, doi:10.1029/91JD02384. Fiorucci, I., et al. (2008), Measurements of low amounts of precipitable water vapor by millimeter wave spectroscopy: An intercomparison with radiosonde, Raman lidar, and Fourier transform infrared data, J. Geophys. Res., 113, D14314, doi:10.1029/2008JD009831. Gordon, I. E., L. S. Rothman, R. R. Gamache, D. Jaquemart, C. Boone, P. F. Bernath, M. W. Shephard, J. S. Delamere, and S. A. Clough (2007), Current updates of the water‐vapor line list in HITRAN: A new “Diet” for air‐broadened half‐widths, J. Quant. Spectrosc. Radiat. Transfer, 108, 389–402, doi:10.1016/j.jqsrt.2007.06.009. James, F. (1994), Minuit, function minimization and error analysis, reference manual, D506, CERN, Geneva, Switzerland. Kiehl, J. T., and K. E. Trenberth (1997), Earth’s Annual Global Mean Energy Budget, Bull. Am. Meteorol. Soc., 78, 197–208. Kneizys, F. X., E. P. Shettle, W. O. Gallery, J. H. Chetwynd Jr., L. W. Abreu, J. E. A. Selby, R. W. Fenn, and R. A. McClatchey (1980), Atmospheric transmittance/radiance: Computer code LOWTRAN 5, AFGLTR‐ 80‐0670, Air Force Geophys. Lab., Hanscom AFB, Mass. Miloshevich, L. M., A. Paukkunen, H. Vömel, and S. J. Oltmans (2004), Development and validation of a time‐lag correction for Vaisala radiosonde humidity measurements, J. Atmos. Oceanic Technol., 21, 1305– 1327. Niro, F., K. Jucks, and J.‐M. Hartmann (2005), Spectral calculations in central and wing regions of CO2 IR bands, IV: Software and database for the computation of atmospheric spectra, J. Quant. Spectrosc. Radiat. Transfer, 95, 469–481. Palchetti, L., A. Barbis, J. E. Harries, and D. Lastrucci (1999), Design and mathematical modelling of the space‐borne far‐infrared Fourier transform spectrometer for REFIR experiment, Infrared Phys. Technol., 40, 367–377. Palchetti, L., G. Bianchini, F. Castagnoli, B. Carli, C. Serio, F. Esposito, V. Cuomo, R. Rizzi, and T. Maestri (2005), Breadboard of a Fouriertransform spectrometer for the Radiation Explorer in the Far Infrared atmospheric mission, Appl. Opt., 44, 2870–2878. Palchetti, L., C. Belotti, G. Bianchini, F. Castagnoli, B. Carli, U. Cortesi, M. Pellegrini, C. Camy‐Peyret, P. Jeseck, and Y. Té (2006), Technical note: First spectral measurement of the Earth’s upwelling emission using an uncooled wideband Fourier transform spectrometer, Atmos. Chem. Phys., 6, 5025–5030. Palchetti, L., G. Bianchini, B. Carli, U. Cortesi, and S. Del Bianco (2007), Measurement of the water vapour vertical profile and of the Earth’s outgoing far infrared flux, Atmos. Chem. Phys. Discuss., 7, 17,741–17,767. Rizzi, R., B. Carli, J. E. Harries, J. Leotin, C. Serio, A. Sutera, B. Bizzarri, R. Bonsignori, and S. Peskett (2001), Mission objectives and instrument requirements for the (REFIR) Radiation Explorer in the Far‐InfraRed mission: An outline after the end of phase B0, in Current Problems in Atmospheric Radiation, edited by W. L. Smith and Y. M. Timofeyev, pp. 567–570, A. Deepak, Hampton, Va. Rothman, L. S., et al. (2005), The HITRAN 2004 molecular spectroscopic database, J. Quant. Spectrosc. Radiat. Transfer, 96, 139–204. Serio, C., F. Esposito, G. Masiello, G. Pavese, M. R. Calvello, G. Grieco, V. Cuomo, H. L. Buijs, and C. B. Roy (2008), Interferometer for groundbased observations of emitted spectral radiance from the troposphere: Evaluation and retrieval performance, Appl. Opt., 47, 3909–3919. Shephard, M. W., S. A. Clough, V. H. Payne, W. L. Smith, S. Kireev, and K. E. Cady‐Pereira (2009), Performance of the line‐by‐line radiative transfer model (LBLRTM) for temperature and species retrievals: IASI case studies from JAIVEx, Atmos. Chem. Phys., 9, 7397–7417. Sinha, A., and J. E. Harries (1995), Water vapour and greenhouse trapping: The role of far infrared absorption, Geophys. Res. Lett., 22, 2147–2150, doi:10.1029/95GL01891. Smith, W. L., W. F. Feltz, R. O. Knuteson, H. E. Revercomb, H. M. Woolf, and H. B. Howell (1999), The retrieval of planetary boundary layer structure using ground‐based infrared spectral radiance measurement, J. Atmos. Oceanic Technol., 16, 323–333. Tobin, D. C., et al. (1999), Downwelling spectral radiance observations at the SHEBA ice station: Water vapor continuum measurements from 17 to 26mm, J. Geophys. Res., 104, 2081–2092, doi:10.1029/1998JD200057. Vömel, H., H. Selkirk, L. Miloshevich, J. Valverde‐Canossa, J. Valdés, E. Kyrö, R. Kivi, W. Stolz, G. Peng, and J. A. Diaz (2007), Radiation dry bias of the Vaisala RS92 humidity sensor, J. Atmos. Oceanic Technol., 24, 953–963. Wang, J. Y. (1974), On the estimation of low‐altitude water vapor profiles from ground‐based infrared measurements, J. Atmos. Sci., 31, 513–521. http://hdl.handle.net/2122/6979 doi:10.1029/2010JD014530 restricted tropospheric water vapor IR spectroscopy REFIR-PAD ECOWAR 01. Atmosphere::01.01. Atmosphere::01.01.01. Composition and Structure 01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques article 2011 ftingv https://doi.org/10.1029/2010JD014530 https://doi.org/10.1029/2007GL032207 2022-07-29T06:05:56Z The Radiation Explorer in the Far InfraRed-Prototype for Applications and Development (REFIR-PAD) spectroradiometer was operated from the Testa Grigia Italian-Alps station in March 2007 during the Earth Cooling by Water Vapour Radiation (ECOWAR) measurement campaign, obtaining downwelling radiance spectra in the 100–1100 cm−1 range, under clear-sky conditions and in the presence of cirrus clouds. The analysis of these measurements has proven that the instrument is capable of determining precipitable water vapor with a total uncertainty of 5–7% by using the far-infrared rotational band of water. The measurement is unaffected by the presence of cirri, whose optical depth can be instead retrieved as an additional parameter. Information on the vertical profiles of water vapor volume mixing ratio and temperature can also be retrieved for three altitude levels. The ability to measure the water vapor column with a simple, uncooled instrument, capable of operating continuously and with a time resolution of about 10 min, makes REFIR-PAD a very valuable instrument for meteorological and climatological studies for the characterization of the water vapor distribution. Published D02310 1.7. Osservazioni di alta e media atmosfera 1.10. TTC - Telerilevamento JCR Journal reserved Article in Journal/Newspaper Arctic Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Alta Journal of Geophysical Research 116 D2 |