Log in

Relevant bibliographies by topics / Mipasho / Journal articles

To see the other types of publications on this topic, follow the link: Mipasho.

Journal articles on the topic 'Mipasho'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Mipasho.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Murimi, Jackline Njeri. "MWINGILIANO WA UTANZU WA MODERN TAARABU- MIPASHO NA MAIGIZO." Advances in Social Sciences Research Journal 8, no. 1 (2021): 186–97. http://dx.doi.org/10.14738/assrj.81.9604.

Full text

Abstract:

Muziki wa taarab umepata mabadiliko makubwa na kusababisha kuwepo kwa aina mbili kuu za Taarab: Taarab Asili na Modern Taarab.Utafiti huu ulihakiki mwingiliano tanzu katika Taarab-Mipasho. Malengo ya Makala hii yalikuwa ni kuchanganua miktadha mbalimbali ya mwingiliano tanzu katika muziki wa Taarab ya Mipasho na utanzu wa maigizo na kutathmini dhima ya mwingiliano huo katika muziki wa Taarab ya Mipasho. Makala hii iliongozwa na nadharia ya mwingilianomatini iliyoasisiwa na Julia Kristeva (1960) baada ya kuizua kutokana na nadharia ya Mikhail Bakhtin ya Usemezano ambapo imetumika kushughulikia

APA, Harvard, Vancouver, ISO, and other styles

2

Kolbusa, Stéphanie, and Alain Ricard. "Mipasho : joutes verbales et vie quotidienne à Dar es Salaam." Études littéraires africaines, no. 16 (2003): 20. http://dx.doi.org/10.7202/1041563ar.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Dinelli, B. M., E. Arnone, G. Brizzi, et al. "The MIPAS2D database of MIPAS/ENVISAT measurements retrieved with a multi-target 2-dimensional tomographic approach." Atmospheric Measurement Techniques 3, no. 2 (2010): 355–74. http://dx.doi.org/10.5194/amt-3-355-2010.

Full text

Abstract:

Abstract. We present a multi-year database of atmospheric fields of the upper troposphere, stratosphere and lower mesosphere retrieved from satellite measurements adopting a 2-dimensional tomographic approach. The full mission of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument, on board the European Space Agency ENVISAT satellite, is analyzed with the Geofit Multi-Target Retrieval (GMTR) system to obtain the MIPAS2D database with atmospheric fields of pressure, temperature and volume mixing ratio of MIPAS main targets H2O, O3, HNO3, CH4, N2O, and NO2. The datab

APA, Harvard, Vancouver, ISO, and other styles

4

Dinelli, B. M., E. Arnone, G. Brizzi, et al. "The MIPAS2D database of MIPAS/ENVISAT measurements retrieved with a multi-target 2-dimensional tomographic approach." Atmospheric Measurement Techniques Discussions 2, no. 5 (2009): 2639–88. http://dx.doi.org/10.5194/amtd-2-2639-2009.

Full text

Abstract:

Abstract. We present a multi-year database of atmospheric state parameters retrieved for the upper tropospheric to mesospheric region from satellite measurements with a 2-dimensional tomographic approach. The full mission of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument, on board the European Space Agency ENVISAT satellite, is analyzed with the Geofit Multi-Target Retrieval (GMTR) system to obtain the MIPAS2D database with atmospheric fields of pressure, temperature and volume mixing ratio of MIPAS main targets H2O, O3, HNO3, CH4, N2O, and NO2. The database c

APA, Harvard, Vancouver, ISO, and other styles

5

Höpfner, M., B. P. Luo, P. Massoli, et al. "Spectroscopic evidence for NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds." Atmospheric Chemistry and Physics 6, no. 5 (2006): 1201–19. http://dx.doi.org/10.5194/acp-6-1201-2006.

Full text

Abstract:

Abstract. We have analyzed mid-infrared limb-emission measurements of polar stratospheric clouds (PSCs) by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) during the Antarctic winter 2003 with respect to PSC composition. Coincident Lidar observations from McMurdo were used for comparison with PSC types 1a, 1b and 2. Application of new refractive index data of β-NAT have allowed to accurately simulate the prominent spectral band at 820 cm-1 observed by MIPAS at the location where the Lidar instrument observed type 1a PSCs. Broadband spectral fits covering the range from 78

APA, Harvard, Vancouver, ISO, and other styles

6

Höpfner, M., T. von Clarmann, H. Fischer, et al. "Validation of MIPAS ClONO<sub>2</sub> measurements." Atmospheric Chemistry and Physics 7, no. 1 (2007): 257–81. http://dx.doi.org/10.5194/acp-7-257-2007.

Full text

Abstract:

Abstract. Altitude profiles of ClONO2 retrieved with the IMK (Institut für Meteorologie und Klimaforschung) science-oriented data processor from MIPAS/Envisat (Michelson Interferometer for Passive Atmospheric Sounding on Envisat) mid-infrared limb emission measurements between July 2002 and March 2004 have been validated by comparison with balloon-borne (Mark IV, FIRS2, MIPAS-B), airborne (MIPAS-STR), ground-based (Spitsbergen, Thule, Kiruna, Harestua, Jungfraujoch, Izaña, Wollongong, Lauder), and spaceborne (ACE-FTS) observations. With few exceptions we found very good agreement between these

APA, Harvard, Vancouver, ISO, and other styles

7

Höpfner, M., T. von Clarmann, H. Fischer, et al. "Validation of MIPAS ClONO<sub>2</sub> measurements." Atmospheric Chemistry and Physics Discussions 6, no. 5 (2006): 9765–821. http://dx.doi.org/10.5194/acpd-6-9765-2006.

Full text

Abstract:

Abstract. Altitude profiles of ClONO2 retrieved with the IMK (Institut für Meteorologie und Klimaforschung) science-oriented data processor from MIPAS/Envisat (Michelson Interferometer for Passive Atmospheric Sounding on Envisat) mid-infrared limb emission measurements between July 2002 and March 2004 have been validated by comparison with balloon-borne (Mark IV, FIRS2, MIPAS-B), airborne (MIPAS-STR), ground-based (Spitsbergen, Thule, Kiruna, Harestua, Jungfraujoch, Izaña, Wollongong, Lauder), and spaceborne (ACE-FTS) observations. With few exceptions we found very good agreement between these

APA, Harvard, Vancouver, ISO, and other styles

8

Steinwagner, J., M. Milz, T. von Clarmann, et al. "HDO measurements with MIPAS." Atmospheric Chemistry and Physics 7, no. 10 (2007): 2601–15. http://dx.doi.org/10.5194/acp-7-2601-2007.

Full text

Abstract:

Abstract. We have used high spectral resolution spectroscopic measurements from the MIPAS instrument on the Envisat satellite to simultaneously retrieve vertical profiles of H2O and HDO in the stratosphere and uppermost troposphere. Variations in the deuterium content of water are expressed in the common δ notation, where δD is the deviation of the Deuterium/Hydrogen ratio in a sample from a standard isotope ratio. A thorough error analysis of the retrievals confirms that reliable δD data can be obtained up to an altitude of ~45 km. Averaging over multiple orbits and thus over longitudes furth

APA, Harvard, Vancouver, ISO, and other styles

9

von Clarmann, T., B. Funke, N. Glatthor, et al. "The MIPAS HOCl climatology." Atmospheric Chemistry and Physics Discussions 11, no. 7 (2011): 20793–822. http://dx.doi.org/10.5194/acpd-11-20793-2011.

Full text

Abstract:

Abstract. Monthly zonal mean HOCl measurements by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) are presented for the episode from June 2002 to March 2004. Highest molar mixing ratios are found at pressure levels between 6 and 2 hPa, whereby largest mixing ratios occasionally exceed 200 ppt. The mixing ratio maximum is generally at lower altitudes in the summer hemisphere than in the winter hemisphere except for chlorine activation conditions in polar vortices, where enhanced HOCl abundances are also found in the lower stratosphere. During nighttime the maximum is found

APA, Harvard, Vancouver, ISO, and other styles

10

Steinwagner, J., M. Milz, T. von Clarmann, et al. "HDO measurements with MIPAS." Atmospheric Chemistry and Physics Discussions 7, no. 1 (2007): 931–70. http://dx.doi.org/10.5194/acpd-7-931-2007.

Full text

Abstract:

Abstract. We have used high spectral resolution spectroscopic measurements from the MIPAS instrument on the Envisat satellite to simultaneously retrieve vertical profiles of H2O and HDO in the stratosphere and uppermost troposphere. A thorough error analysis of the retrievals confirms that reliable δD data can be obtained up to an altitude of ~45 km. Averaging over multiple orbits and thus over longitudes further reduces the random part of the error. The absolute total error of averaged δD is between 36 ‰ and 111‰. With values lower than 42 ‰ the total random error is significantly smaller tha

APA, Harvard, Vancouver, ISO, and other styles

11

von Clarmann, T., B. Funke, N. Glatthor, et al. "The MIPAS HOCl climatology." Atmospheric Chemistry and Physics 12, no. 4 (2012): 1965–77. http://dx.doi.org/10.5194/acp-12-1965-2012.

Full text

Abstract:

Abstract. Monthly zonal mean HOCl measurements by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) are presented for the period from June 2002 to March 2004. Highest molar mixing ratios are found at pressure levels between 6 and 2 hPa, whereby largest mixing ratios occasionally exceed 200 ppt. The mixing ratio maximum is generally higher at lower altitudes in the summer hemisphere than in the winter hemisphere except for chlorine activation conditions in polar vortices, where enhanced HOCl abundances are also found in the lower stratosphere below about 10 hPa. During night

APA, Harvard, Vancouver, ISO, and other styles

12

Eckert, E., A. Laeng, S. Lossow, et al. "MIPAS IMK/IAA CFC-11 (CCl<sub>3</sub>F) and CFC-12 (CCl<sub>2</sub>F<sub>2</sub>) measurements: accuracy, precision and long-term stability." Atmospheric Measurement Techniques 9, no. 7 (2016): 3355–89. http://dx.doi.org/10.5194/amt-9-3355-2016.

Full text

Abstract:

Abstract. Profiles of CFC-11 (CCl3F) and CFC-12 (CCl2F2) of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) aboard the European satellite Envisat have been retrieved from versions MIPAS/4.61 to MIPAS/4.62 and MIPAS/5.02 to MIPAS/5.06 level-1b data using the scientific level-2 processor run by Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research (IMK) and Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Astrofísica de Andalucía (IAA). These profiles have been compared to measurements taken by the balloon-borne cryosampl

APA, Harvard, Vancouver, ISO, and other styles

13

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 (2010): 3877–906. http://dx.doi.org/10.5194/amtd-3-3877-2010.

Full text

Abstract:

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 val

APA, Harvard, Vancouver, ISO, and other styles

14

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 (2006): 5037–48. http://dx.doi.org/10.5194/acp-6-5037-2006.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

15

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 (2006): 4251–72. http://dx.doi.org/10.5194/acpd-6-4251-2006.

Full text

Abstract:

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.

APA, Harvard, Vancouver, ISO, and other styles

16

Remedios, J. J., R. J. Leigh, A. M. Waterfall, et al. "MIPAS reference atmospheres and comparisons to V4.61/V4.62 MIPAS level 2 geophysical data sets." Atmospheric Chemistry and Physics Discussions 7, no. 4 (2007): 9973–10017. http://dx.doi.org/10.5194/acpd-7-9973-2007.

Full text

Abstract:

Abstract. Reliable reference profiles and estimates of variability are a necessity for a variety of processes relating to ENVISAT including the development of key aspects and inputs for the operational processor for the Michelson Interferometer for Passive Atmospheric Sounding. MIPAS reference atmospheres have therefore been produced in two forms, namely standard atmospheres for modelling and error analysis for typical atmospheric situations and the IG2 seasonal climatologies for initial guess profiles used as part of the operational processing. The reference states cover 36 species on a commo

APA, Harvard, Vancouver, ISO, and other styles

17

Eckert, E., A. Laeng, S. Lossow, et al. "MIPAS IMK/IAA CFC-11 (CCl<sub>3</sub>F) and CFC-12 (CCl<sub>2</sub>F<sub>2</sub>) measurements: accuracy, precision and long-term stability." Atmospheric Measurement Techniques Discussions 8, no. 7 (2015): 7573–662. http://dx.doi.org/10.5194/amtd-8-7573-2015.

Full text

Abstract:

Abstract. Profiles of CFC-11 (CCl3F) and CFC-12 (CCl2F2) of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) abord the European satellite Envisat have been retrieved from versions MIPAS/4.61–MIPAS/4.62 and MIPAS/5.02–MIPAS/5.06 level-1b data using the scientific level-2 processor run by Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research (IMK) and Consejo Superior de Investigaciones Científicas (CSIC), Instituto de Astrofísica de Andalucía (IAA). These profiles have been compared to measurements taken by the balloon borne Cryosampler, Mar

APA, Harvard, Vancouver, ISO, and other styles

18

Höpfner, M., B. P. Luo, P. Massoli та ін. "Spectroscopic evidence for β-NAT, STS, and ice in MIPAS infrared limb emission measurements of polar stratospheric clouds". Atmospheric Chemistry and Physics Discussions 5, № 5 (2005): 10685–721. http://dx.doi.org/10.5194/acpd-5-10685-2005.

Full text

Abstract:

Abstract. We have analyzed mid-infrared limb-emission measurements of polar stratospheric clouds (PSCs) by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) during the Antarctic winter 2003 with respect to PSC composition. Coincident lidar observations from McMurdo were used for comparison with PSC types 1a, 1b and 2. By application of new refractive index data we could prove that a spectral signature at 820 cm−1 as observed by MIPAS near to the observation of a type 1a PSC is due to a composition of β-NAT. MIPAS infrared spectra collocated with Lidar observations of Type 1

APA, Harvard, Vancouver, ISO, and other styles

19

Lossow, S., J. Steinwagner, J. Urban, et al. "Comparison of HDO measurements from Envisat/MIPAS with observations by Odin/SMR and SCISAT/ACE-FTS." Atmospheric Measurement Techniques Discussions 4, no. 2 (2011): 1677–721. http://dx.doi.org/10.5194/amtd-4-1677-2011.

Full text

Abstract:

Abstract. Measurements of thermal emission in the mid-infrared by Envisat/MIPAS allow the retrieval of HDO information roughly in the altitude range between 10 km and 50 km. From September 2002 to March 2004 MIPAS performed measurements in the full spectral mode. To assess the quality of the HDO data set obtained during that period comparisons with measurements by Odin/SMR and SCISAT/ACE-FTS were performed. Comparisons were made on profile-to-profile basis as well as using seasonal and monthly means. All in all the comparisons yield favourable results. The largest deviations between MIPAS and

APA, Harvard, Vancouver, ISO, and other styles

20

Lossow, Stefan, Charlotta Högberg, Farahnaz Khosrawi та ін. "A reassessment of the discrepancies in the annual variation of <i>δ</i>D-H<sub>2</sub>O in the tropical lower stratosphere between the MIPAS and ACE-FTS satellite data sets". Atmospheric Measurement Techniques 13, № 1 (2020): 287–308. http://dx.doi.org/10.5194/amt-13-287-2020.

Full text

Abstract:

Abstract. The annual variation of δD in the tropical lower stratosphere is a critical indicator for the relative importance of different processes contributing to the transport of water vapour through the cold tropical tropopause region into the stratosphere. Distinct observational discrepancies of the δD annual variation were visible in the works of Steinwagner et al. (2010) and Randel et al. (2012). Steinwagner et al. (2010) analysed MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) observations retrieved with the IMK/IAA (Institut für Meteorologie und Klimaforschung in Karls

APA, Harvard, Vancouver, ISO, and other styles

21

Chauhan, S., M. Höpfner, G. P. Stiller, et al. "MIPAS reduced spectral resolution UTLS-1 mode measurements of temperature, O<sub>3</sub>, HNO<sub>3</sub>, N<sub>2</sub>O, H<sub>2</sub>O and relative humidity over ice: retrievals and comparison to MLS." Atmospheric Measurement Techniques Discussions 2, no. 1 (2009): 439–87. http://dx.doi.org/10.5194/amtd-2-439-2009.

Full text

Abstract:

Abstract. During several periods since 2005 the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat has performed observations dedicated to the region of the upper troposphere/lower stratosphere (UTLS). For the duration of November/December 2005 global distributions of temperature and several trace gases from MIPAS UTLS-1 mode measurements have been retrieved using the IMK/IAA (Institut für Meteorologie und Klimaforschung/Instituto de Astrofísica de Andalucía) scientific processor. In the UTLS region a vertical resolution of 2.5 to 3 km has been achieved. The retrieved

APA, Harvard, Vancouver, ISO, and other styles

22

Wetzel, G., H. Oelhaf, G. Berthet, et al. "Validation of MIPAS-ENVISAT H<sub>2</sub>O operational data collected between July 2002 and March 2004." Atmospheric Chemistry and Physics Discussions 13, no. 2 (2013): 4433–89. http://dx.doi.org/10.5194/acpd-13-4433-2013.

Full text

Abstract:

Abstract. Water vapour (H2O) is one of the operationally retrieved key species of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard the environmental satellite ENVISAT which was launched into its sun-synchronous orbit on 1 March 2002 and operated until April 2012. Within the MIPAS validation activities, independent observations from balloons, aircraft, satellites, and ground-based stations have been compared to European Space Agency (ESA) version 4.61 operational H2O data comprising the time period from July 2002 until March 2004 where MIPAS measured with

APA, Harvard, Vancouver, ISO, and other styles

23

Wetzel, G., H. Oelhaf, G. Berthet, et al. "Validation of MIPAS-ENVISAT H<sub>2</sub>O operational data collected between July 2002 and March 2004." Atmospheric Chemistry and Physics 13, no. 11 (2013): 5791–811. http://dx.doi.org/10.5194/acp-13-5791-2013.

Full text

Abstract:

Abstract. Water vapour (H2O) is one of the operationally retrieved key species of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard the Environmental Satellite (ENVISAT) which was launched into its sun-synchronous orbit on 1 March 2002 and operated until April 2012. Within the MIPAS validation activities, independent observations from balloons, aircraft, satellites, and ground-based stations have been compared to European Space Agency (ESA) version 4.61 operational H2O data comprising the time period from July 2002 until March 2004 where MIPAS measured wit

APA, Harvard, Vancouver, ISO, and other styles

24

Payan, S., C. Camy-Peyret, H. Oelhaf, et al. "Validation of version-4.61 methane and nitrous oxide observed by MIPAS." Atmospheric Chemistry and Physics 9, no. 2 (2009): 413–42. http://dx.doi.org/10.5194/acp-9-413-2009.

Full text

Abstract:

Abstract. The ENVISAT validation programme for the atmospheric instruments MIPAS, SCIAMACHY and GOMOS is based on a number of balloon-borne, aircraft, satellite and ground-based correlative measurements. In particular the activities of validation scientists were coordinated by ESA within the ENVISAT Stratospheric Aircraft and Balloon Campaign or ESABC. As part of a series of similar papers on other species [this issue] and in parallel to the contribution of the individual validation teams, the present paper provides a synthesis of comparisons performed between MIPAS CH4 and N2O profiles produc

APA, Harvard, Vancouver, ISO, and other styles

25

Stiller, G. P., M. Kiefer, E. Eckert, et al. "Validation of MIPAS IMK/IAA temperature, water vapor, and ozone profiles with MOHAVE-2009 campaign measurements." Atmospheric Measurement Techniques 5, no. 2 (2012): 289–320. http://dx.doi.org/10.5194/amt-5-289-2012.

Full text

Abstract:

Abstract. MIPAS observations of temperature, water vapor, and ozone in October 2009 as derived with the scientific level-2 processor run by Karlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research (IMK) and CSIC, Instituto de Astrofísica de Andalucía (IAA) and retrieved from version 4.67 level-1b data have been compared to co-located field campaign observations obtained during the MOHAVE-2009 campaign at the Table Mountain Facility near Pasadena, California in October 2009. The MIPAS measurements were validated regarding any potential biases of the profiles, and

APA, Harvard, Vancouver, ISO, and other styles

26

Wang, D. Y., M. Höpfner, G. Mengistu Tsidu, et al. "Validation of nitric acid retrieved by the IMK-IAA processor from MIPAS/ENVISAT measurements." Atmospheric Chemistry and Physics 7, no. 3 (2007): 721–38. http://dx.doi.org/10.5194/acp-7-721-2007.

Full text

Abstract:

Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard the ENVISAT satellite provides profiles of temperature and various trace-gases from limb-viewing mid-infrared emission measurements. The stratospheric nitric acid (HNO3) from September 2002 to March 2004 was retrieved from the MIPAS observations using the science-oriented data processor developed at the Institut für Meteorologie und Klimaforschung (IMK), which is complemented by the component of non-local thermodynamic equilibrium (non-LTE) treatment from the Instituto de Astrofísica de Andalucía (IAA). The

APA, Harvard, Vancouver, ISO, and other styles

27

Ceccherini, S., U. Cortesi, P. T. Verronen, and E. Kyrölä. "Technical Note: Continuity of MIPAS-ENVISAT operational ozone data quality from full- to reduced-spectral-resolution operation mode." Atmospheric Chemistry and Physics 8, no. 8 (2008): 2201–12. http://dx.doi.org/10.5194/acp-8-2201-2008.

Full text

Abstract:

Abstract. MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) is operating on the ENVIronmental SATellite (ENVISAT) since March 2002. After two years of nearly continuous limb scanning measurements, at the end of March 2004, the instrument was stopped due to problems with the mirror drive of the interferometer. Operations with reduced maximum path difference, corresponding to both a reduced-spectral-resolution and a shorter measurement time, were resumed on January 2005. In order to exploit the reduction in measurement time, the measurement scenario was changed adopting a finer v

APA, Harvard, Vancouver, ISO, and other styles

28

Wang, D. Y., M. Höpfner, G. Mengistu Tsidu, et al. "Validation of nitric acid retrieved by the IMK-IAA processor from MIPAS/ENVISAT measurements." Atmospheric Chemistry and Physics Discussions 6, no. 5 (2006): 9723–64. http://dx.doi.org/10.5194/acpd-6-9723-2006.

Full text

Abstract:

Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard the ENVISAT satellite provides profiles of temperature and various trace-gases from limb-viewing mid-infrared emission measurements. The stratospheric nitric acid (HNO3) from September 2002 to March 2004 was retrieved from the MIPAS observations using the science-oriented data processor developed at the Institut für Meteorologie und Klimaforschung (IMK), which is complemented by the component of non-local thermodynamic equilibrium (non-LTE) treatment from the Instituto de Astrofísica de Andalucía (IAA). The

APA, Harvard, Vancouver, ISO, and other styles

29

Ceccherini, S., U. Cortesi, P. T. Verronen, and E. Kyrölä. "Technical Note: Continuity of MIPAS-ENVISAT ozone data quality from full- to reduced-spectral-resolution operation mode." Atmospheric Chemistry and Physics Discussions 8, no. 1 (2008): 797–825. http://dx.doi.org/10.5194/acpd-8-797-2008.

Full text

Abstract:

Abstract. MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) is operating on the ENVIronmental SATellite (ENVISAT) since March 2002. After two years of nearly continuous limb scanning measurements, at the end of March 2004, the instrument was stopped due to problems with the mirror drive of the interferometer. Operations with reduced maximum path difference, corresponding to both a reduced-spectral-resolution and a shorter measurement time, were resumed on January 2005. In order to exploit the reduction in measurement time, the measurement scenario was changed adopting a finer v

APA, Harvard, Vancouver, ISO, and other styles

30

Chauhan, S., M. Höpfner, G. P. Stiller, et al. "MIPAS reduced spectral resolution UTLS-1 mode measurements of temperature, O<sub>3</sub>, HNO<sub>3</sub>, N<sub>2</sub>O, H<sub>2</sub>O and relative humidity over ice: retrievals and comparison to MLS." Atmospheric Measurement Techniques 2, no. 2 (2009): 337–53. http://dx.doi.org/10.5194/amt-2-337-2009.

Full text

Abstract:

Abstract. During several periods since 2005 the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat has performed observations dedicated to the region of the upper troposphere/lower stratosphere (UTLS). For the duration of November/December 2005 global distributions of temperature and several trace gases from MIPAS UTLS-1 mode measurements have been retrieved using the IMK/IAA (Institut für Meteorologie und Klimaforschung/Instituto de Astrofísica de Andalucía) scientific processor. In the UTLS region a vertical resolution of 3 km for temperaure, 3 to 4 km for H2O, 2.5

APA, Harvard, Vancouver, ISO, and other styles

31

Wang, D. Y., M. Höpfner, C. E. Blom, et al. "Validation of MIPAS HNO<sub>3</sub> operational data." Atmospheric Chemistry and Physics 7, no. 18 (2007): 4905–34. http://dx.doi.org/10.5194/acp-7-4905-2007.

Full text

Abstract:

Abstract. Nitric acid (HNO3) is one of the key products that are operationally retrieved by the European Space Agency (ESA) from the emission spectra measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard ENVISAT. The product version 4.61/4.62 for the observation period between July 2002 and March 2004 is validated by comparisons with a number of independent observations from ground-based stations, aircraft/balloon campaigns, and satellites. Individual HNO3 profiles of the ESA MIPAS level-2 product show good agreement with those of MIPAS-B and MIPAS-STR (the

APA, Harvard, Vancouver, ISO, and other styles

32

Lossow, S., J. Steinwagner, J. Urban, et al. "Comparison of HDO measurements from Envisat/MIPAS with observations by Odin/SMR and SCISAT/ACE-FTS." Atmospheric Measurement Techniques 4, no. 9 (2011): 1855–74. http://dx.doi.org/10.5194/amt-4-1855-2011.

Full text

Abstract:

Abstract. Measurements of thermal emission in the mid-infrared by Envisat/MIPAS allow the retrieval of HDO information roughly in the altitude range between 10 km and 50 km. From June 2002 to March 2004 MIPAS performed measurements in the full spectral resolution mode. To assess the quality of the HDO data set obtained during that period comparisons with measurements by Odin/SMR and SCISAT/ACE-FTS were performed. Comparisons were made on profile-to-profile basis as well as using seasonal and monthly averages. All in all the comparisons yield favourable results. The largest deviations between M

APA, Harvard, Vancouver, ISO, and other styles

33

Milz, M., T. v. Clarmann, P. Bernath, 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 (2009): 489–559. http://dx.doi.org/10.5194/amtd-2-489-2009.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

34

Raspollini, P., C. Belotti, A. Burgess, et al. "MIPAS level 2 operational analysis." Atmospheric Chemistry and Physics 6, no. 12 (2006): 5605–30. http://dx.doi.org/10.5194/acp-6-5605-2006.

Full text

Abstract:

Abstract. The MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) instrument has been operating on-board the ENVISAT satellite since March 2002. In the first two years, it acquired in a nearly continuous manner high resolution (0.025 cm−1 unapodized) emission spectra of the Earth's atmosphere at limb in the middle infrared region. This paper describes the level 2 near real-time (NRT) and off-line (OL) ESA processors that have been used to derive level 2 geophysical products from the calibrated and geolocated level 1b spectra. The design of the code and the analysis methodology ha

APA, Harvard, Vancouver, ISO, and other styles

35

Kiefer, M., T. von Clarmann, U. Grabowski, et al. "Characterization of MIPAS elevation pointing." Atmospheric Chemistry and Physics 7, no. 6 (2007): 1615–28. http://dx.doi.org/10.5194/acp-7-1615-2007.

Full text

Abstract:

Abstract. Sufficient knowledge of the pointing is essential for analyses of limb emission measurements. The scientific retrieval processor for MIPAS on ENVISAT operated at IMK allows the retrieval of pointing information in terms of tangent altitudes along with temperature. The retrieved tangent altitudes are independent of systematic offsets in the engineering Line-Of-Sight (LOS) information delivered with the ESA Level 1b product. The difference of pointing retrieved from the reprocessed high resolution MIPAS spectra and the engineering pointing information was examined with respect to spati

APA, Harvard, Vancouver, ISO, and other styles

36

von Clarmann, T., C. De Clercq, M. Ridolfi, M. Höpfner, and J. C. Lambert. "The horizontal resolution of MIPAS." Atmospheric Measurement Techniques 2, no. 1 (2009): 47–54. http://dx.doi.org/10.5194/amt-2-47-2009.

Full text

Abstract:

Abstract. Limb remote sensing from space provides atmospheric composition measurements at high vertical resolution while the information is smeared in the horizontal domain. The horizontal components of two-dimensional (altitude and along-track coordinate) averaging kernels of a limb retrieval constrained to horizontal homogeneity can be used to estimate the horizontal resolution of limb retrievals. This is useful for comparisons of measured data with modeled data, to construct horizontal observation operators in data assimilation applications or when measurements of different horizontal resol

APA, Harvard, Vancouver, ISO, and other styles

37

Kiefer, M., T. von Clarmann, U. Grabowski, et al. "Characterization of MIPAS elevation pointing." Atmospheric Chemistry and Physics Discussions 6, no. 6 (2006): 13075–110. http://dx.doi.org/10.5194/acpd-6-13075-2006.

Full text

Abstract:

Abstract. Sufficient knowledge of the pointing is essential for analyses of limb emission measurements. The scientific retrieval processor for MIPAS operated at IMK allows to retrieve pointing information in terms of tangent altitudes along with temperature. The retrieved tangent altitudes are independent of the engineering Line-Of-Sight (LOS) information delivered with the ESA Level 1b product. The difference of pointing retrieved from the reprocessed high resolution MIPAS spectra and the engineering pointing information was examined with respect to spatial/temporal behaviour. Among others th

APA, Harvard, Vancouver, ISO, and other styles

38

Raspollini, P., C. Belotti, A. Burgess, et al. "MIPAS level 2 operational analysis." Atmospheric Chemistry and Physics Discussions 6, no. 4 (2006): 6525–85. http://dx.doi.org/10.5194/acpd-6-6525-2006.

Full text

Abstract:

Abstract. The MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) instrument has been operating on-board the ENVISAT satellite since March 2002. In the first two years, it acquired in a nearly continuous manner high resolution (0.025 cm−1 unapodised) emission spectra of the Earth's atmosphere at limb in the middle infrared region. This paper describes the level 2 near real-time (NRT) and off-line (OL) ESA processors that have been used to derive level 2 geophysical products from the calibrated and geolocated level 1b spectra. The design of the code and the analysis methodology ha

APA, Harvard, Vancouver, ISO, and other styles

39

von Clarmann, T., C. De Clercq, M. Ridolfi, M. Höpfner, and J. C. Lambert. "The horizontal resolution of MIPAS." Atmospheric Measurement Techniques Discussions 1, no. 1 (2008): 103–25. http://dx.doi.org/10.5194/amtd-1-103-2008.

Full text

Abstract:

Abstract. Limb remote sensing from space provides atmospheric composition measurements at high vertical resolution while the information is smeared in the horizontal domain. The horizontal components of two-dimensional (altitude and along-track coordinate) averaging kernels of a limb retrieval constrained to horizontal homogeneity can be used to estimate the horizontal resolution of limb retrievals. This is useful for comparisons of measured data with modeled data, to construct horizontal observation operators in data assimilation applications or when measurements of different horizontal resol

APA, Harvard, Vancouver, ISO, and other styles

40

Ceccherini, Simone, Bruno Carli, and Piera Raspollini. "Quality of MIPAS operational products." Journal of Quantitative Spectroscopy and Radiative Transfer 121 (May 2013): 45–55. http://dx.doi.org/10.1016/j.jqsrt.2013.01.021.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Laeng, A., J. Plieninger, T. von Clarmann, et al. "Validation of MIPAS IMK/IAA methane profiles." Atmospheric Measurement Techniques 8, no. 12 (2015): 5251–61. http://dx.doi.org/10.5194/amt-8-5251-2015.

Full text

Abstract:

Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) is an infrared (IR) limb emission spectrometer on the Envisat platform. It measures trace gas distributions during day and night, pole-to-pole, over an altitude range from 6 to 70 km in nominal mode and up to 170 km in special modes, depending on the measurement mode, producing more than 1000 profiles day−1. We present the results of a validation study of methane, version V5R_CH4_222, retrieved with the IMK/IAA (Institut für Meteorologie und Klimaforschung, Karlsruhe/Instituto de Astrofisica de Andalucia, Grenada)

APA, Harvard, Vancouver, ISO, and other styles

42

Pope, Richard J., Nigel A. D. Richards, Martyn P. Chipperfield, et al. "Intercomparison and evaluation of satellite peroxyacetyl nitrate observations in the upper troposphere–lower stratosphere." Atmospheric Chemistry and Physics 16, no. 21 (2016): 13541–59. http://dx.doi.org/10.5194/acp-16-13541-2016.

Full text

Abstract:

Abstract. Peroxyacetyl nitrate (PAN) is an important chemical species in the troposphere as it aids the long-range transport of NOx and subsequent formation of O3 in relatively clean remote regions. Over the past few decades observations from aircraft campaigns and surface sites have been used to better understand the regional distribution of PAN. However, recent measurements made by satellites allow for a global assessment of PAN in the upper troposphere–lower stratosphere (UTLS). In this study, we investigate global PAN distributions from two independent retrieval methodologies, based on mea

APA, Harvard, Vancouver, ISO, and other styles

43

Guochang, Zhang, G. Wetzel, H. Oelhaf, et al. "Validation of temperature measurements from MIPAS-ENVISAT with balloon observations obtained by MIPAS-B." Journal of Atmospheric and Solar-Terrestrial Physics 72, no. 11-12 (2010): 837–47. http://dx.doi.org/10.1016/j.jastp.2010.04.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Wang, D. Y., M. Höpfner, C. E. Blom, et al. "Validation of MIPAS HNO<sub>3</sub> operational data." Atmospheric Chemistry and Physics Discussions 7, no. 2 (2007): 5173–251. http://dx.doi.org/10.5194/acpd-7-5173-2007.

Full text

Abstract:

Abstract. Nitric acid (HNO3) is one of the key products that are operationally retrieved by the European Space Agency (ESA) from the emission spectra measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard ENVISAT. The product version 4.61/4.62 for the observation period between July 2002 and March 2004 is validated by comparisons with a number of independent observations from ground-based stations, aircraft/balloon campaigns, and satellites. Individual HNO3 profiles of the ESA MIPAS level-2 product show good agreement with those of MIPAS-B and MIPAS-STR (the

APA, Harvard, Vancouver, ISO, and other styles

45

Woiwode, W., O. Sumińska-Ebersoldt, H. Oelhaf, et al. "Validation of first chemistry mode retrieval results from the new limb-imaging FTS GLORIA with correlative MIPAS-STR observations." Atmospheric Measurement Techniques 8, no. 6 (2015): 2509–20. http://dx.doi.org/10.5194/amt-8-2509-2015.

Full text

Abstract:

Abstract. We report first chemistry mode retrieval results from the new airborne limb-imaging infrared FTS (Fourier transform spectrometer) GLORIA (Gimballed Limb Observer for Radiance Imaging of the Atmosphere) and comparisons with observations by the conventional airborne limb-scanning infrared FTS MIPAS-STR (Michelson Interferometer for Passive Atmospheric Sounding – STRatospheric aircraft). For GLORIA, the flights aboard the high-altitude research aircraft M55 Geophysica during the ESSenCe campaign (ESa Sounder Campaign 2011) were the very first in field deployment after several years of d

APA, Harvard, Vancouver, ISO, and other styles

46

Milz, M., T. v. Clarmann, P. Bernath, 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 (2009): 379–99. http://dx.doi.org/10.5194/amt-2-379-2009.

Full text

Abstract:

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 Experime

APA, Harvard, Vancouver, ISO, and other styles

47

Ridolfi, M., U. Blum, B. Carli, et al. "Geophysical validation of temperature retrieved by the ESA processor from MIPAS/ENVISAT atmospheric limb-emission measurements." Atmospheric Chemistry and Physics Discussions 7, no. 2 (2007): 5439–513. http://dx.doi.org/10.5194/acpd-7-5439-2007.

Full text

Abstract:

Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) has been operating since March 2002 onboard of the ENVIronmental SATellite of the European Space Agency (ESA). The high resolution (0.035 cm−1) limb-emission measurements acquired by MIPAS in the first two years of operation have very good geographical and temporal coverage and have been re-processed by ESA with the most recent versions (4.61 and 4.62) of the inversion algorithms. The products of this processing chain are geolocated profiles of temperature and of the volume mixing ratios of six key atmospheric cons

APA, Harvard, Vancouver, ISO, and other styles

48

Laeng, A., J. Plieninger, T. von Clarmann, et al. "Validation of MIPAS IMK/IAA methane profiles." Atmospheric Measurement Techniques Discussions 8, no. 6 (2015): 5565–90. http://dx.doi.org/10.5194/amtd-8-5565-2015.

Full text

Abstract:

Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) was an infra-red (IR) limb emission spectrometer on the Envisat platform. It measured during day and night, pole-to-pole, over an altitude range from 6 to 70 km in nominal mode and up to 170 km in special modes, depending on the measurement mode, producing more than 1000 profiles day−1. We present the results of a validation study of methane version V5R_CH4_222 retrieved with the IMK/IAA MIPAS scientific level 2 processor. The level 1 spectra are provided by ESA, the version 5 was used. The time period covered corr

APA, Harvard, Vancouver, ISO, and other styles

49

Wetzel, G., A. Bracher, B. Funke, et al. "Validation of MIPAS-ENVISAT NO<sub>2</sub> operational data." Atmospheric Chemistry and Physics 7, no. 12 (2007): 3261–84. http://dx.doi.org/10.5194/acp-7-3261-2007.

Full text

Abstract:

Abstract. The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument was launched aboard the environmental satellite ENVISAT into its sun-synchronous orbit on 1 March 2002. The short-lived species NO2 is one of the key target products of MIPAS that are operationally retrieved from limb emission spectra measured in the stratosphere and mesosphere. Within the MIPAS validation activities, a large number of independent observations from balloons, satellites and ground-based stations have been compared to European Space Agency (ESA) version 4.61 operational NO2 data comprising

APA, Harvard, Vancouver, ISO, and other styles

50

Sembhi, H., J. Remedios, T. Trent, et al. "MIPAS detection of cloud and aerosol particle occurrence in the UTLS with comparison to HIRDLS and CALIOP." Atmospheric Measurement Techniques 5, no. 10 (2012): 2537–53. http://dx.doi.org/10.5194/amt-5-2537-2012.

Full text

Abstract:

Abstract. Satellite infrared emission instruments require efficient systems that can separate and flag observations which are affected by clouds and aerosols. This paper investigates the identification of cloud and aerosols from infrared, limb sounding spectra that were recorded by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), a high spectral resolution Fourier transform spectrometer on the European Space Agency's (ESA) ENVISAT (Now inoperative since April 2012 due to loss of contact). Specifically, the performance of an existing cloud and aerosol particle detection me

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!