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Empirical Validation and Proof of Added Value of Musica's Tropospheric Δd Remote Sensing Products : Volume 8, Issue 1 (30/01/2015)

By Schneider, M.

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Book Id: WPLBN0003975730
Format Type: PDF Article :
File Size: Pages 21
Reproduction Date: 2015

Title: Empirical Validation and Proof of Added Value of Musica's Tropospheric Δd Remote Sensing Products : Volume 8, Issue 1 (30/01/2015)  
Author: Schneider, M.
Volume: Vol. 8, Issue 1
Language: English
Subject: Science, Atmospheric, Measurement
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Dyroff, C., Christner, E., Rodríguez, S., Blumenstock, T., Guirado, C., Barthlott, S.,...Schneider, M. (2015). Empirical Validation and Proof of Added Value of Musica's Tropospheric Δd Remote Sensing Products : Volume 8, Issue 1 (30/01/2015). Retrieved from http://www.nationalpubliclibrary.com/


Description
Description: Institute for Meteorology and Climate Research (IMK-ASF), Karlsruhe Institute of Technology, Karlsruhe, Germany. The project MUSICA (MUlti-platform remote Sensing of Isotopologues for investigating the Cycle of Atmospheric water) integrates tropospheric water vapour isotopologue remote sensing and in situ observations. This paper presents a first empirical validation of MUSICA's H2O and δD remote sensing products, generated from ground-based FTIR (Fourier transform infrared), spectrometer and space-based IASI (infrared atmospheric sounding interferometer) observation. The study is made in the area of the Canary Islands in the subtropical northern Atlantic. As reference we use well calibrated in situ measurements made aboard an aircraft (between 200 and 6800 m a.s.l.) by the dedicated ISOWAT instrument and on the island of Tenerife at two different altitudes (at Izaña, 2370 m a.s.l., and at Teide, 3550 m a.s.l.) by two commercial Picarro L2120-i water isotopologue analysers.

The comparison to the ISOWAT profile measurements shows that the remote sensors can well capture the variations in the water vapour isotopologues, and the scatter with respect to the in situ references suggests a δD random uncertainty for the FTIR product of much better than 45‰ in the lower troposphere and of about 15‰ for the middle troposphere. For the middle tropospheric IASI δD product the study suggests a respective uncertainty of about 15‰. In both remote sensing data sets we find a positive δD bias of 30–70‰.

Complementing H2O observations with δD data allows moisture transport studies that are not possible with H2O observations alone. We are able to qualitatively demonstrate the added value of the MUSICA δD remote sensing data. We document that the δD–H2O curves obtained from the different in situ and remote sensing data sets (ISOWAT, Picarro at Izaña and Teide, FTIR, and IASI) consistently identify two different moisture transport pathways to the subtropical north eastern Atlantic free troposphere.


Summary
Empirical validation and proof of added value of MUSICA's tropospheric δD remote sensing products

Excerpt
Aemisegger, F., Sturm, P., Graf, P., Sodemann, H., Pfahl, S., Knohl, A., and Wernli, H.: Measuring variations of δ18O and δ2H in atmospheric water vapour using two commercial laser-based spectrometers: an instrument characterisation study, Atmos. Meas. Tech., 5, 1491–1511, doi:10.5194/amt-5-1491-2012, 2012.; Andrey, J., Cuevas, E., Parrondo, M. C., Alonso-Pérez, S., Redondas, A., and Gil-Ojeda, M.: Quantification of ozone reductions within the Saharan air layer through a 13-year climatologic analysis of ozone profiles, Atmos. Environ., 84, 28–34, doi:10.1016/j.atmosenv.2013.11.030, 2014.; Barnes, E. A. and Hartmann, D. L.: Influence of eddy-driven jet latitude on North Atlantic jet persistence and blocking frequency in CMIP3 integrations, Geophys. Res. Lett., 37, L23802, doi:10.1029/2010GL045700, 2010.; Boesch, H., Deutscher, N. M., Warneke, T., Byckling, K., Cogan, A. J., Griffith, D. W. T., Notholt, J., Parker, R. J., and Wang, Z.: HDO/H2O ratio retrievals from GOSAT, Atmos. Meas. Tech., 6, 599–612, doi:10.5194/amt-6-599-2013, 2013.; Craig, H.: Standard for Reporting concentrations of Deuterium and Oxygen-18 in natural waters, Science, 13, 1833–1834, doi:10.1126/science.133.3467.1833, 1961.; Cuevas, E., González, Y., Rodríguez, S., Guerra, J. C., Gómez-Peláez, A. J., Alonso-Pérez, S., Bustos, J., and Milford, C.: Assessment of atmospheric processes driving ozone variations in the subtropical North Atlantic free troposphere, Atmos. Chem. Phys., 13, 1973–1998, doi:10.5194/acp-13-1973-2013, 2013.; Dyroff, C., Fütterer, D., and Zahn, A.: Compact diode-laser spectrometer ISOWAT for highly sensitive airborne measurements of water-isotope ratios, Appl. Phys. B, 98, 537–548, doi:10.1007/s00340-009-3775-6, 2010.; Dyroff, C., Sanati, S., Christner, E., Zahn, A., Balzer, M., Bouquet, H., McManus, J. B., González-Ramos, Y., and Schneider, M.: Airborne in situ vertical profiling of HDO/H216O in the subtropical troposphere during the MUSICA remote sensing validation campaign, Atmos. Meas. Tech. Discuss., 8, 121–155, doi:10.5194/amtd-8-121-2015, 2015.; Frankenberg, C., Yoshimura, K., Warneke, T., Aben, I., Butz, A., Deutscher, N., Griffith, D., Hase, F., Notholt, J., Schneider, M., Schrejver, H., and Röckmann, T.: Dynamic processes governing lower-tropospheric HDO/H2O ratios as observed from space and ground, Science, 325, 1374–1377, doi:10.1126/science.1173791, 2009.; Frankenberg, C., Wunch, D., Toon, G., Risi, C., Scheepmaker, R., Lee, J.-E., Wennberg, P., and Worden, J.: Water vapor isotopologue retrievals from high-resolution GOSAT shortwave infrared spectra, Atmos. Meas. Tech., 6, 263–274, doi:10.5194/amt-6-263-2013, 2013.; Galewsky, J., Sobel, A., and Held, I.: Diagnosis of Subtropical Humidity Dynamics Using Tracers of Last Saturation Journal of the Atmospheric Sciences, Atmos. Sci., 62, 3353–3367, doi:10.1175/jas3533.1, 2005.; García, O. E., Schneider, M., Redondas, A., González, Y., Hase, F., Blumenstock, T., and Sepúlveda, E.: Investigating the long-term evolution of subtropical ozone profiles applying ground-based FTIR spectrometry, Atmos. Meas. Tech., 5, 2

 

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