Academic literature on the topic 'MIPAS; Interferometer; Atmospheric sounding'

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Journal articles on the topic "MIPAS; Interferometer; Atmospheric sounding"

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Perrin, Agnès, Jean-Marie Flaud, Marco Ridolfi, Jean Vander Auwera, and Massimo Carlotti. "MIPAS database: new HNO<sub>3</sub> line parameters at 7.6 µm validated with MIPAS satellite measurements." Atmospheric Measurement Techniques 9, no. 5 (May 10, 2016): 2067–76. http://dx.doi.org/10.5194/amt-9-2067-2016.

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Abstract. Improved line positions and intensities have been generated for the 7.6 µm spectral region of nitric acid. They were obtained relying on a recent reinvestigation of the nitric acid band system at 7.6 µm and comparisons of HNO3 volume mixing ratio profiles retrieved from the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) limb emission radiances in the 11 and 7.6 µm domains. This has led to an improved database called MIPAS-2015. Comparisons with available laboratory information (individual line intensities, integrated absorption cross sections, and absorption cross sections) show that MIPAS-2015 provides an improved description of the 7.6 µm region of nitric acid. This study should help to improve HNO3 satellite retrievals by allowing measurements to be performed simultaneously in the 11 and 7.6 µm micro-windows. In particular, it should be useful to analyze existing MIPAS and IASI spectra as well as spectra to be recorded by the forthcoming Infrared Atmospheric Sounding Interferometer – New Generation (IASI-NG) instrument.
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Perrin, A., J. M. Flaud, M. Ridolfi, J. Vander Auwera, and M. Carlotti. "MIPAS database: new HNO<sub>3</sub> line parameters at 7.6 μm validated with MIPAS satellite measurements." Atmospheric Measurement Techniques Discussions 8, no. 11 (November 10, 2015): 11643–71. http://dx.doi.org/10.5194/amtd-8-11643-2015.

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Abstract. Improved line positions and intensities have been generated for the 7.6 μm spectral region of nitric acid. They were obtained relying on a recent reinvestigation of the nitric acid band system at 7.6 μm and comparisons of HNO3 volume mixing ratio profiles retrieved from the "Michelson Interferometer for Passive Atmospheric Sounding" (MIPAS) limb emission radiances in the 11 and 7.6 μm domains. This has led to an improved database called "MIPAS-2015". Comparisons with available laboratory information (individual line intensities, integrated absorption cross sections, and absorption cross sections) show that MIPAS-2015 provides an improved description of the 7.6 μm region of nitric acid. This study should help to improve HNO3 satellite retrievals by allowing measurements to be performed simultaneously in the 11 and 7.6 μm micro-windows. In particular, it should be useful to analyze existing MIPAS and IASI spectra as well as spectra to be recorded by the forthcoming "Infrared Atmospheric Sounding Interferometer – New Generation" (IASI-NG) instrument.
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Flaud, J. M., G. Brizzi, M. Carlotti, A. Perrin, and M. Ridolfi. "MIPAS database: Validation of HNO<sub>3</sub> line parameters using MIPAS satellite measurements." Atmospheric Chemistry and Physics 6, no. 12 (November 3, 2006): 5037–48. http://dx.doi.org/10.5194/acp-6-5037-2006.

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Abstract. Using new and accurate experimental results concerning the spectroscopic properties of the HNO3 molecule as well as improved theoretical methods it has been possible to generate an improved set of line parameters for this molecule in the spectral range covered by the MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) experiment. These line parameters, which have been validated using broadband atmospheric spectra recorded by MIPAS, have been included in the last version of the MIPAS spectroscopic database to be used for future processing of the MIPAS spectra.
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Flaud, J. M., G. Brizzi, M. Carlotti, A. Perrin, and M. Ridolfi. "MIPAS database: Validation of HNO<sub>3</sub> line parameters using MIPAS satellite measurements." Atmospheric Chemistry and Physics Discussions 6, no. 3 (May 29, 2006): 4251–72. http://dx.doi.org/10.5194/acpd-6-4251-2006.

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Abstract. Using new and accurate experimental results concerning the spectroscopic properties of the HNO3 molecule as well as improved theoretical methods it has been possible to generate an improved set of line parameters for this molecule in the spectral range covered by the MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) experiment. These line parameters, which have been validated using broadband atmospheric spectra recorded by MIPAS, have been included in the last version of the MIPAS spectroscopic database to be used for future processing of the MIPAS spectra.
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Milz, M., T. v. Clarmann, P. Bernath, C. Boone, S. A. Buehler, S. Chauhan, B. Deuber, et al. "Validation of water vapour profiles (version 13) retrieved by the IMK/IAA scientific retrieval processor based on full resolution spectra measured by MIPAS on board Envisat." Atmospheric Measurement Techniques Discussions 2, no. 1 (February 25, 2009): 489–559. http://dx.doi.org/10.5194/amtd-2-489-2009.

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Abstract. Vertical profiles of stratospheric water vapour measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) between September 2002 and March 2004 and retrieved with the IMK/IAA scientific retrieval processor were compared to a number of independent measurements in order to estimate the bias and to validate the existing precision estimates of the MIPAS data. The independent instruments were: the Halogen Occultation Experiment (HALOE), the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS), the Improved Limb Atmospheric Spectrometer-II (ILAS-II), the Polar Ozone and Aerosol Measurement (POAM III) instrument, the Middle Atmospheric Water Vapour Radiometer (MIAWARA), the Michelson Interferometer for Passive Atmospheric Sounding, balloon-borne version (MIPAS-B), the Airborne Microwave Stratospheric Observing System (AMSOS), the Fluorescent Stratospheric Hygrometer for Balloon (FLASH-B), the NOAA frostpoint hygrometer, and the Fast In Situ Hygrometer (FISH). In the stratosphere there is no clear indication of a bias in MIPAS data, because the independent measurements in some cases are drier and in some cases are moister than the MIPAS measurements. Compared to the infrared measurements of MIPAS, measurements in the ultraviolet and visible have a tendency to be high, whereas microwave measurements have a tendency to be low. The results of χ2-based precision validation are somewhat controversial among the comparison estimates. However, for comparison instruments whose error budget also includes errors due to uncertainties in spectrally interfering species and where good coincidences were found, the χ2 values found are in the expected range or even below. This suggests that there is no evidence of systematically underestimated MIPAS random errors.
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Milz, M., T. v. Clarmann, P. Bernath, C. Boone, S. A. Buehler, S. Chauhan, B. Deuber, et al. "Validation of water vapour profiles (version 13) retrieved by the IMK/IAA scientific retrieval processor based on full resolution spectra measured by MIPAS on board Envisat." Atmospheric Measurement Techniques 2, no. 2 (July 27, 2009): 379–99. http://dx.doi.org/10.5194/amt-2-379-2009.

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Abstract. Vertical profiles of stratospheric water vapour measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) with the full resolution mode between September 2002 and March 2004 and retrieved with the IMK/IAA scientific retrieval processor were compared to a number of independent measurements in order to estimate the bias and to validate the existing precision estimates of the MIPAS data. The estimated precision for MIPAS is 5 to 10% in the stratosphere, depending on altitude, latitude, and season. The independent instruments were: the Halogen Occultation Experiment (HALOE), the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS), the Improved Limb Atmospheric Spectrometer-II (ILAS-II), the Polar Ozone and Aerosol Measurement (POAM III) instrument, the Middle Atmospheric Water Vapour Radiometer (MIAWARA), the Michelson Interferometer for Passive Atmospheric Sounding, balloon-borne version (MIPAS-B), the Airborne Microwave Stratospheric Observing System (AMSOS), the Fluorescent Stratospheric Hygrometer for Balloon (FLASH-B), the NOAA frostpoint hygrometer, and the Fast In Situ Hygrometer (FISH). For the in-situ measurements and the ground based, air- and balloon borne remote sensing instruments, the measurements are restricted to central and northern Europe. The comparisons to satellite-borne instruments are predominantly at mid- to high latitudes on both hemispheres. In the stratosphere there is no clear indication of a bias in MIPAS data, because the independent measurements in some cases are drier and in some cases are moister than the MIPAS measurements. Compared to the infrared measurements of MIPAS, measurements in the ultraviolet and visible have a tendency to be high, whereas microwave measurements have a tendency to be low. The results of χ2-based precision validation are somewhat controversial among the comparison estimates. However, for comparison instruments whose error budget also includes errors due to uncertainties in spectrally interfering species and where good coincidences were found, the χ2 values found are in the expected range or even below. This suggests that there is no evidence of systematically underestimated MIPAS random errors.
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Hurley, J., A. Dudhia, and R. G. Grainger. "Retrieval of macrophysical cloud parameters from MIPAS: algorithm description and preliminary validation." Atmospheric Measurement Techniques Discussions 3, no. 4 (August 26, 2010): 3877–906. http://dx.doi.org/10.5194/amtd-3-3877-2010.

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Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard ENVISAT has the potential to be particularly useful for studying high, thin clouds, which have been difficult to observe in the past. This paper details the development, implementation and testing of an optimal-estimation-type retrieval for three macrophysical cloud parameters (cloud top height, cloud top temperature and cloud extinction coefficient) from infrared spectra measured by MIPAS, employing additional information derived to improve the choice of a priori. The retrieval is applied and initially validated on MIPAS data. From application to MIPAS data, the retrieved cloud top heights are assessed to be accurate to within 50 m, the cloud top temperatures to within 0.5 K and extinction coefficients to within a factor of 15%. This algorithm has been adopted by the European Space Agency's ''MIPclouds'' project, which itself recognises the potential of MIPAS beyond monitoring atmospheric chemistry and seeks to study clouds themselves rigorously using MIPAS.
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Kleinert, Anne, Manfred Birk, Gaétan Perron, and Georg Wagner. "Level 1b error budget for MIPAS on ENVISAT." Atmospheric Measurement Techniques 11, no. 10 (October 17, 2018): 5657–72. http://dx.doi.org/10.5194/amt-11-5657-2018.

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Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) is a Fourier transform spectrometer measuring the radiance emitted from the atmosphere in limb geometry in the thermal infrared spectral region. It was operated onboard the ENVISAT satellite from 2002 to 2012. Calibrated and geolocated spectra, the so-called level 1b data, are the basis for the retrieval of atmospheric parameters. In this paper we present the error budget for the level 1b data of the most recent data version 8 in terms of radiometric, spectral, and line of sight accuracy. The major changes of version 8 compared to older versions are also described. The impact of the different error sources on the spectra is characterized in terms of spectral, vertical, and temporal correlation because these correlations have an impact on the quality of the retrieved quantities. The radiometric error is in the order of 1 % to 2.4 %, the spectral accuracy is better than 0.3 ppm, and the line of sight accuracy at the tangent point is around 400 m. All errors are well within the requirements, and the achieved accuracy allows atmospheric parameters to be retrieved from the measurements with high quality.
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Piccolo, C., and A. Dudhia. "Precision validation of MIPAS-Envisat products." Atmospheric Chemistry and Physics 7, no. 8 (April 17, 2007): 1915–23. http://dx.doi.org/10.5194/acp-7-1915-2007.

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Abstract. This paper discusses the variation and validation of the precision, or estimated random error, associated with the ESA Level 2 products from the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS). This quantity represents the propagation of the radiometric noise from the spectra through the retrieval process into the Level 2 profile values. The noise itself varies with time, steadily rising between ice decontamination events, but the Level 2 precision has a greater variation due to the atmospheric temperature which controls the total radiance received. Hence, for all species, the precision varies latitudinally/seasonally with temperature, with a small superimposed temporal structure determined by the degree of ice contamination on the detectors. The precision validation involves comparing two MIPAS retrievals at the intersections of ascending/descending orbits. For 5 days per month of full resolution MIPAS operation, the standard deviation of the matching profile pairs is computed and compared with the precision given in the MIPAS Level 2 data, except for NO2 since it has a large diurnal variation between ascending/descending intersections. Even taking into account the propagation of the pressure-temperature retrieval errors into the VMR retrieval, the standard deviation of the matching pairs is usually a factor 1–2 larger than the precision. This is thought to be due to effects such as horizontal inhomogeneity of the atmosphere and instability of the retrieval.
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Piccolo, C., and A. Dudhia. "Precision validation of MIPAS-Envisat products." Atmospheric Chemistry and Physics Discussions 7, no. 1 (January 18, 2007): 911–29. http://dx.doi.org/10.5194/acpd-7-911-2007.

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Abstract. This paper discusses the variation and validation of the precision, or estimated random error, associated with the ESA Level 2 products from the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS). This quantity represents the propagation of the radiometric noise from the spectra through the retrieval process into the Level 2 profile values. The noise itself varies with time, steadily rising between decontamination events, but the Level 2 precision has a greater variation due to the atmospheric temperature which controls the total radiance received. Hence, for all species, the precision varies latitudinally/seasonally with temperature, with a small superimposed temporal structure determined by the degree of ice contamination on the detectors. The precision validation involves comparing two MIPAS retrievals at the intersections of ascending/descending orbits. For 5 days per month of full resolution MIPAS operation, the standard deviation of the matching profile pairs is computed and compared with the precision given in the MIPAS Level 2 data. Even taking into account the propagation of the pressure-temperature retrieval errors into the VMR retrieval, the standard deviation of the matching pairs is usually a factor 1–2 larger than the precision. This is thought to be due to effects such as horizontal inhomogeneity of the atmosphere and instability of the retrieval.
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Dissertations / Theses on the topic "MIPAS; Interferometer; Atmospheric sounding"

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Jay, Victoria Louise. "Remote sounding of the atmosphere by high-resolution spectroscopy." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365439.

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Friederich, Felix [Verfasser], and J. [Akademischer Betreuer] Orphal. "Auswirkungen präzipitierender Teilchen auf NO und NO2 der oberen Stratosphäre und unteren Mesosphäre: Messungen des Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) / Felix Friederich. Betreuer: J. Orphal." Karlsruhe : KIT-Bibliothek, 2014. http://d-nb.info/1052263615/34.

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Chellini, Giovanni. "Assessment of the capability of the Infrared Atmospheric Sounding Interferometer (IASI), the Atmospheric Infrared Sounder (AIRS), and the ERA5 reanalysis to detect specific humidity inversions at an Arctic site." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Specific humidity inversions are extremely frequent in the Arctic atmosphere, and they are strongly intertwined with the energy budget, by affecting downward longwave radiation and cloud processes. Despite their importance, they have been the focus of a limited number of studies, and our knowledge of their characteristics is limited because of the lack of in situ data in the region, and the presence of large errors in moisture variables in reanalyses. Retrievals from satellite infrared sounders could fill this knowledge gap. In this thesis, the capability of two benchmark satellite sounders, the Infrared Atmospheric Sounding Interferometer (IASI) and the Atmospheric Infrared Sounder (AIRS), to detect specific humidity inversions at an Arctic site, Ny-Ålesund, is systematically assessed for the first time. Additionally, an accurate characterization of specific humidity inversions above Ny-Ålesund is performed employing radiosonde data, and the capability to detect Arctic specific humidity inversions of the next-generation reanalysis ERA5 is also assessed. The assessment is performed by comparing specific humidity inversion statistics from radiosondes to analogous statistics obtained from co-located IASI and AIRS retrievals, as well as ERA5 fields. Results show that ERA5 provides a good representation of specific humidity inversion characteristics, while IASI and AIRS retrievals display strong limitations in capturing Arctic specific humidity inversions.
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Turquety, Solène. "Mesure de l'ozone troposhérique à partir d'observations satellitaires dans le domaine de l'infrarouge." Paris 6, 2003. https://tel.archives-ouvertes.fr/tel-00011409.

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Ferreira, Victor. "Inversion de spectres infrarouges en émission thermique de la basse atmosphère terrestre enregistrés sous ballon par transformée de Fourier en visée au nadir : préparation de la mission spatiale IASI." Paris 6, 2005. http://www.theses.fr/2005PA066053.

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Books on the topic "MIPAS; Interferometer; Atmospheric sounding"

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Harris, R. A. Envisat: The Michelson interferometer for passive atmospheric sounding, MIPAS : an instrument for atmospheric chemistry and climate research. Noordwijk, The Netherlands: ESA Publications Division, 2000.

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Smith, William L. Analysis of cirrus optical properties with data from the NASA ER2 high-resolution interferometer sounder (HIS): Final report on NASA research grant NAG-1-1015. Madison, Wis: University of Wisconsin-Madison, 1990.

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Book chapters on the topic "MIPAS; Interferometer; Atmospheric sounding"

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Fischer, Herbert. "Spectroscopic Measurements with MIPAS (Michelson Interferometer for Passive Atmospheric Sounding)." In Spectroscopy from Space, 161–69. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0832-7_10.

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Smith, W. L., H. E. Revercomb, H. L. Huang, and R. O. Knuteson. "Vertical Sounding Capabilities With High Spectral Resolution Atmospheric Radiation Measurements-A Demonstration with the High resolution Interferometer Sounder (HIS)." In High Spectral Resolution Infrared Remote Sensing for Earth’s Weather and Climate Studies, 131–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84599-4_9.

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Conference papers on the topic "MIPAS; Interferometer; Atmospheric sounding"

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Endemann, Martin. "MIPAS, the Michelson Interferometer for Passive Atmospheric Sounding for the EnviSat Satellite." In Fourier Transform Spectroscopy. Washington, D.C.: OSA, 2005. http://dx.doi.org/10.1364/fts.2005.ftuc1.

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Friedl-Vallon, Felix, Guido Maucher, Hermann Oelhaf, Meinhard Seefeldner, Olaf Trieschmann, Gerald Wetzel, and Herbert Fischer. "Balloonborne Michelson interferometer for passive atmospheric sounding (MIPAS-B2): instrument and results." In SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, edited by Allen M. Larar. SPIE, 1999. http://dx.doi.org/10.1117/12.366371.

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Endemann, Martin, Philippe Garé, Herbert Nett, Jörg Langen, David J. Smith, Karl Hoerning, and Roland Gessner. "The ENVISAT Michelson interferometar for passive atmospheric sounding: MIPAS." In International Conference on Space Optics 1997, edited by Georges Otrio. SPIE, 2018. http://dx.doi.org/10.1117/12.2326450.

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Endemann, Martin J., Philip Gare, David J. Smith, Karl Hoerning, Burkhard Fladt, and Roland Gessner. "Michelson Interferometer for Passive Atmospheric Sounding (MIPAS): design overview and current development status." In Satellite Remote Sensing III, edited by Adam D. Devir, Anton Kohnle, and Christian Werner. SPIE, 1997. http://dx.doi.org/10.1117/12.263161.

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Friedl-Vallon, Felix, Thomas von Clarmann, Herbert Fischer, Ch Fritzsche, Hermann Oelhaf, C. Piesch, Meinhard Seefeldner, Dieter Rabus, and W. Voelker. "Limb emission spectroscopy with the balloon-borne Michelson interferometer for passive atmospheric sounding (MIPAS)." In Environmental Sensing '92, edited by Harold I. Schiff and Ulrich Platt. SPIE, 1993. http://dx.doi.org/10.1117/12.140197.

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Endemann, Martin J., Guenter Lange, and B. Fladt. "Michelson interferometer for passive atmospheric sounding (MIPAS): a high-resolution limb sounder for the European Polar Platform." In Optical Engineering and Photonics in Aerospace Sensing, edited by David K. Lynch. SPIE, 1993. http://dx.doi.org/10.1117/12.154913.

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Lingot, Philippe, Jean-Jacques P. Arnoux, and Michel Negre. "Study of the impact of external stray light for the Michelson interferometer for passive atmosphere sounding (MIPAS)." In SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, edited by Robert P. Breault. SPIE, 1994. http://dx.doi.org/10.1117/12.189223.

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Fischer, Herbert, Roland Meynart, Klaus Thoermer, Henk Bokhove, Harald Rippel, and Friedrich Fergg. "MIPAS: a space-based interferometer for atmospheric observations." In 15th Int'l Optics in Complex Sys. Garmisch, FRG, edited by F. Lanzl, H. J. Preuss, and G. Weigelt. SPIE, 1990. http://dx.doi.org/10.1117/12.34916.

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Javelle, Pascale, and Francois Cayla. "Infrared atmospheric sounding interferometer instrument overview." In Garmisch - DL tentative, edited by Guy Cerutti-Maori and Philippe Roussel. SPIE, 1994. http://dx.doi.org/10.1117/12.185276.

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Liu, Xu, Daniel K. Zhou, Allen Larar, William L. Smith, and Peter Schluessel. "Atmospheric property retrievals from infrared atmospheric sounding interferometer (IASI)." In SPIE Remote Sensing, edited by Richard H. Picard, Adolfo Comeron, Klaus Schäfer, Aldo Amodeo, and Michiel van Weele. SPIE, 2008. http://dx.doi.org/10.1117/12.800361.

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