Search Results - "FRIESS, U"

Oxidative stress, AGE, and atherosclerosis by Schleicher, E., Friess, U.

“…Numerous reports on the molecular mechanism of atherogenesis indicate an increase in oxidative stress, formation of advanced glycoxidation end products (AGEs),…”
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The vertical distribution of BrO and aerosols in the Arctic: Measurements by active and passive differential optical absorption spectroscopy by Frieß, U., Sihler, H., Sander, R., Pöhler, D., Yilmaz, S., Platt, U.

“…We present results from multiaxis differential optical absorption spectroscopy (MAX‐DOAS) and long‐path DOAS (LP‐DOAS) measurements performed at the North…”
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Polar Nighttime Chemistry Produces Intense Reactive Bromine Events by Simpson, W. R., Frieß, U., Thomas, J. L., Lampel, J., Platt, U.

“…By examining the origin of airmasses that arrive at Utqiaġvik (formerly Barrow), Alaska, soon after polar sunrise (late January/early February), we identified…”
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Halogens and their role in polar boundary-layer ozone depletion by Simpson, W. R., von Glasow, R., Riedel, K., Anderson, P., Ariya, P., Bottenheim, J., Burrows, J., Carpenter, L. J., Frieß, U., Goodsite, M. E., Heard, D., Hutterli, M., Jacobi, H.-W., Kaleschke, L., Neff, B., Plane, J., Platt, U., Richter, A., Roscoe, H., Sander, R., Shepson, P., Sodeau, J., Steffen, A., Wagner, T., Wolff, E.

“…During springtime in the polar regions, unique photochemistry converts inert halide salt ions (e.g. Br−) into reactive halogen species (e.g. Br atoms and BrO)…”
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Formaldehyde and nitrogen dioxide over the remote western Pacific Ocean: SCIAMACHY and GOME-2 validation using ship-based MAX-DOAS observations by Peters, E, Wittrock, F, Großmann, K, Frieß, U, Richter, A, Burrows, J. P

“…In October 2009, shipborne Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements were performed during the TransBrom campaign over…”
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MAX-DOAS O4 measurements: A new technique to derive information on atmospheric aerosols: 2. Modeling studies by Frieß, U., Monks, P. S., Remedios, J. J., Rozanov, A., Sinreich, R., Wagner, T., Platt, U.

“…A new retrieval algorithm for the determination of aerosol properties using Multi‐AXis Differential Optical Absorption Spectroscopy (MAX‐DOAS) measurements…”
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The impact of vibrational Raman scattering of air on DOAS measurements of atmospheric trace gases by Lampel, J, Frieß, U, Platt, U

“…In remote sensing applications, such as differential optical absorption spectroscopy (DOAS), atmospheric scattering processes need to be considered. After…”
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Inversion of tropospheric profiles of aerosol extinction and HCHO and NO2 mixing ratios from MAX-DOAS observations in Milano during the summer of 2003 and comparison with independent data sets by Wagner, T, Beirle, S, Brauers, T, Deutschmann, T, Frieß, U, Hak, C, Halla, J D, Heue, K P, Junkermann, W, Li, X, Platt, U, Pundt-Gruber, I

“…We present aerosol and trace gas profiles derived from MAX-DOAS observations. Our inversion scheme is based on simple profile parameterisations used as input…”
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Intercomparison of aerosol extinction profiles retrieved from MAX-DOAS measurements by Frieß, U, Klein Baltink, H, Beirle, S, Clémer, K, Hendrick, F, Henzing, B, Irie, H, de Leeuw, G, Li, A, Moerman, M. M, van Roozendael, M, Shaiganfar, R, Wagner, T, Wang, Y, Xie, P, Yilmaz, S, Zieger, P

“…A first direct intercomparison of aerosol vertical profiles from Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) observations, performed…”
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Comparison of ambient aerosol extinction coefficients obtained from in-situ, MAX-DOAS and LIDAR measurements at Cabauw by Zieger, P., Weingartner, E., Henzing, J., Moerman, M., de Leeuw, G., Mikkilä, J., Ehn, M., Petäjä, T., Clémer, K., van Roozendael, M., Yilmaz, S., Frieß, U., Irie, H., Wagner, T., Shaiganfar, R., Beirle, S., Apituley, A., Wilson, K., Baltensperger, U.

“…In the field, aerosol in-situ measurements are often performed under dry conditions (relative humidity RH<30–40%). Since ambient aerosol particles experience…”
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On the relative absorption strengths of water vapour in the blue wavelength range by Lampel, J, Pöhler, D, Tschritter, J, Frieß, U, Platt, U

“…In recent updates of the HITRAN water vapour H2O spectroscopic compilation covering the blue spectral region (here: 394–480 nm) significant changes for the…”
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Dependence of the vertical distribution of bromine monoxide in the lower troposphere on meteorological factors such as wind speed and stability by Peterson, P. K, Simpson, W. R, Pratt, K. A, Shepson, P. B, Frieß, U, Zielcke, J, Platt, U, Walsh, S. J, Nghiem, S. V

“…Multiple axis differential absorption spectroscopy (MAX-DOAS) measurements of bromine monoxide (BrO) probed the vertical structure of halogen activation events…”
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Lightweight components for energy-efficient machine tools by Kroll, L., Blau, P., Wabner, M., Frieß, U., Eulitz, J., Klärner, M.

“…The increasing demand for machine tools and production systems to be more energy-efficient poses new challenges for machine developers. The paper discusses the…”
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MAX-DOAS O4 measurements: A new technique to derive information on atmospheric aerosols—Principles and information content by Wagner, T., Dix, B., Friedeburg, C. v., Frieß, U., Sanghavi, S., Sinreich, R., Platt, U.

“…Multi AXis Differential Optical Absorption Spectroscopy (MAX‐DOAS) observations of the oxygen dimer O4 which can serve as a new method for the determination of…”
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Atmospheric mercury over sea ice during the OASIS-2009 campaign by Steffen, A, Bottenheim, J, Cole, A, Douglas, T. A, Ebinghaus, R, Friess, U, Netcheva, S, Nghiem, S, Sihler, H, Staebler, R

“…Measurements of gaseous elemental mercury (GEM), reactive gaseous mercury (RGM) and particulate mercury (PHg) were collected on the Beaufort Sea ice near…”
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Cloud detection and classification based on MAX-DOAS observations by Wagner, T, Apituley, A, Beirle, S, Dörner, S, Friess, U, Remmers, J, Shaiganfar, R

“…Multi-axis differential optical absorption spectroscopy (MAX-DOAS) observations of aerosols and trace gases can be strongly influenced by clouds. Thus, it is…”
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Iodine monoxide in the Antarctic snowpack by Frieß, U., Deutschmann, T., Gilfedder, B. S., Weller, R., Platt, U.

“…Recent ground-based and space borne observations suggest the presence of significant amounts of iodine monoxide in the boundary layer of Antarctica, which are…”
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Iodine monoxide in the Western Pacific marine boundary layer by Großmann, K, Frieß, U, Peters, E, Wittrock, F, Lampel, J, Yilmaz, S, Tschritter, J, Sommariva, R, von Glasow, R, Quack, B, Krüger, K, Pfeilsticker, K, Platt, U

“…A latitudinal cross-section and vertical profiles of iodine monoxide (IO) are reported from the marine boundary layer of the Western Pacific. The measurements…”
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MAX-DOAS formaldehyde slant column measurements during CINDI: intercomparison and analysis improvement by Pinardi, G, Van Roozendael, M, Abuhassan, N, Adams, C, Cede, A, Clémer, K, Fayt, C, Frieß, U, Gil, M, Herman, J, Hermans, C, Hendrick, F, Irie, H, Merlaud, A, Navarro Comas, M, Peters, E, Piters, A. J. M, Puentedura, O, Richter, A, Schönhardt, A, Shaiganfar, R, Spinei, E, Strong, K, Takashima, H, Vrekoussis, M, Wagner, T, Wittrock, F, Yilmaz, S

“…We present intercomparison results for formaldehyde (HCHO) slant column measurements performed during the Cabauw Intercomparison campaign of Nitrogen Dioxide…”
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MAX‐DOAS O 4 measurements: A new technique to derive information on atmospheric aerosols—Principles and information content by Wagner, T., Dix, B., Friedeburg, C. v., Frieß, U., Sanghavi, S., Sinreich, R., Platt, U.

“…Multi AXis Differential Optical Absorption Spectroscopy (MAX‐DOAS) observations of the oxygen dimer O 4 which can serve as a new method for the determination…”
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