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186 results on '"Bevilacqua, R. M"'

2. Comparison of satellite ozone observations in coincident air masses in early November 1994

Author

Zawodny, J. M, Toon, G. C, Russell, J. M. III, Riese, M, Oberheide, J, Livesey, N. J, Irion, F. W, Gunson, M. R, Bevilacqua, R. M, Michelsen, H. A, and Manney, G. L

Abstract

Ozone observed by seven satellite instruments, the Atmospheric Trace Molecule Spectroscopy instrument (ATMOS), Stratospheric Aerosol and Gas Experiment (SAGE) II, Polar Ozone and Aerosol Measurement (POAM) II instrument, Halogen Occultation Experiment (HALOE), Microwave Limb Sounder (MLS), Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA), and Millimeter-wave Atmospheric Sounder (MAS), during early November 1994 is mapped in equivalent latitude/potential temperature (EqL/ theta )space to facilitate nearly global comparisons of measurements taken in similar air masses.

Published
2001

4. Comparison of ER-2 Aircraft and POAM-III, MLS, and SAGE-II Satellite Measurements During SOLVE Using Traditional Correlative Analysis and Trajectory Hunting Technique

Author

Danilin, M. Y, Ko, Malcolm K. W, Bevilacqua, R. M, Lyjak, L. V, Froidevaux, L, Santee, M. L, Zawodny, J. M, Hoppel, K. W, Richard, E. C, Spackman, J. R, and Jackman, Charles H

Subjects
Geophysics
Abstract

We compared the version 5 Microwave Limb Sounder (MLS) aboard the Upper Atmosphere Research Satellite (UARS), version 3 Polar Ozone and Aerosol Measurement-III (POAM-111) aboard the French satellite SPOT-IV, version 6.0 Stratospheric Aerosol and Gas Experiment 11 (SAGE-II) aboard the Earth Radiation Budget Satellite, and NASA ER-2 aircraft measurements made in the northern hemisphere in January-February 2000 during the SAGE III Ozone Loss and Validation Experiment (SOLVE). This study addresses one of the key scientific objectives of the SOLVE campaign, namely, to validate multi-platform satellite measurements made in the polar stratosphere during winter. This intercomparison was performed using a traditional correlative analysis (TCA) and a trajectory hunting technique (THT). Launching backward and forward trajectories from the points of measurement, the THT identifies air parcels sampled at least twice within a prescribed match criterion during the course of 5 days. We found that the ozone measurements made by these four instruments agree most of the time within 110% in the stratosphere up to 1400 K (approximately 35 km). The water vapor measurements from POAM-III and the ER-2 Harvard Lyman-alpha hygrometer and JPL laser hygrometer agree to within 10.5 ppmv (or about +/-10%) in the lower stratosphere above 380 K. The MLS and ER-2 ClO measurements agree within their error bars for the TCA. The MLS and ER-2 nitric acid measurements near 17-20 km altitude agree within their uncertainties most of the time with a hint of a positive offset by MLS according to the TCA. We also applied the AER box model constrained by the ER-2 measurements for analysis of the ClO and HN03 measurements using the THT. We found that: (1) the model values of ClO are smaller by about 0.3-0.4 (0.2) ppbv below (above) 400 K than those by MLS and (2) the HN03 comparison shows a positive offset of MLS values by approximately 1 and 1-2 ppbv below 400 K and near 450 K, respectively. It is hard to quantify the HN03 offset in the 400-440 K range because of the high sensitivity of nitric acid to the PSC schemes. Our study shows that, with some limitations (like HN03 comparison under PSC conditions), the THT is a more powerful tool for validation studies than the TCA, making conclusions of the comparison statistically more robust.

Published
2001

6. Latitudinal Distribution of Upper Stratospheric ClO as Derived from Space Borne Microwave Spectroscopy

Author

Aellig, C. P, Kaempfer, N, Rudin, C, Bevilacqua, R. M, Degenhardt, W, Hartogh, P, Jarchow, C, Kuenzi, K, Olivero, J. J, Croskey, C, Waters, J. W, and Michelsen, H. A

Subjects
Geophysics
Abstract

Latitudinal distributions of upper stratospheric ClO measured by MAS during the three ATLAS missions are presented for northern hemisphere (NH) spring equinox in 1992, southern hemisphere (SH) early fall in 1993, and NH fall in 1994. The MAS ClO results are shown along with correlative MLS observations. The results of both instruments consistently show the same latitudinal features. The ClO maximum in the NH spring occurs at mid latitudes, whereas the latitudinal ClO maximum in both the NH and SH fall occurs at high latitudes. The volume mixing ratio maxima were significantly higher in the fall (0.7-0.8 ppbv) than in spring (0.5-0.6 ppbv). Qualitatively, these results are consistent with calculations of several 2-D models.

Published
1996

7. A Comparison of Ozone Measurements Made by the ATMOS, MAS, and SSBUV Instruments During ATLAS 1,2, and 3

Author

Kriebel, D. L, Bevilacqua, R. M, Hilsenrath, E, Gunson, M, Hartmann, G. K, Abrams, M, Daehler, M, Pauls, T. A, Newchurch, M, Aellig, C. P, and Bories, M. C

Subjects
Environment Pollution
Abstract

Ozone profile measurements were made by three instruments, ATMOS, MAS, and SSBUV, using distinctly different observing techniques, as part of the ATLAS Space Shuttle missions in March 1992, April 1993, and November 1994. ATMOS makes solar-occultation observations of infrared spectra using a Fourier transform interferometer. MAS uses a limb-scanning antenna to measure emission spectra at millimeter wavelengths. SSBUV is a nadir-viewing instrument measuring the transmission of scattered solar ultraviolet radiation modified by ozone absorption. A sample of zonal-mean mixing ratio profiles indicates that these three ATLAS instruments generally agree to within 10%, although a few potential biases have been noted. There are significant differences in the character of the agreement between ATLAS 1 and ATLAS 2 which will require further study.

Published
1996

8. Space-Borne H2O Observations in the Arctic Stratosphere and Mesosphere in the Spring of 1992

Author

Aellig, C. P, Bacmeister, J, Bevilacqua, R. M, Daehler, M, Kriebel, D, Pauls, T, Siskind, D, Kaempfer, N, Langen, J, Hartmann, G, Berg, A, Park, J. H, and Russell, J. M., III

Subjects
Geophysics
Abstract

We report on stratospheric and mesospheric water vapor (H2O) observations obtained by the Millimeter wave Atmospheric Sounder (MAS) in the Arctic spring of 1992. In the lower stratosphere, the observations show enhanced H2O inside the vortex between 450 K and 625 K, in agreement with other H2O observations. In the upper stratosphere and lower mesosphere, at potential temperatures between 1850 K and 2200 K, we find regions of depressed H2O volume mixing ratio coincident with remnants of high potential vorticity. The depressed mesospheric H2O, as well as the enhanced lower stratospheric H2O, are consistent with wintertime descent. It also suggests effective containment of air up into the lower mesosphere.

Published
1996

9. A model study of the response of mesospheric ozone to short-term solar ultraviolet flux variations

Author

Summers, M. E, Bevilacqua, R. M, Strobel, D. F, Zhu, Xun, Deland, M. T, Allen, M, and Keating, G. M

Subjects
Geophysics
Abstract

An investigation is conducted in order to determine the relative importance of several modeled processes in controlling the magnitude and phase of the mesospheric ozone response. A detailed one-dimensional modeling study of the mesospheric ozone response to solar UV flux variations is conducted to remove some of the deficiencies in previous studies. This study is also used to examine specifically the importance of solar zenith angle, self-consistent calculation of water vapor abundance, and temperature feedback with a nonlocal thermodynamic equilibrium radiation model. The photochemical model is described, and the assumptions made for the purpose of comparing model results with the observed ozone response obtained from a statistical analysis of Solar Mesosphere Explorer data (Keating et al., 1987) are discussed. The numerical results for the theoretical ozone response are presented. The results of selected time-dependent calculations are considered to illustrate the degree to which a relatively simple model of the mesosphere is able to capture the major characteristics of the observed response.

Published
1990

10. Measurements of CO in the terrestrial mesosphere

Author

Bevilacqua, R. M., Pauls, T., Schwartz, P. R., Armstrong, J. T., Ungerechts, H., Araki, H., editor, Ehlers, J., editor, Hepp, K., editor, Kippenhahn, R., editor, Ruelle, D., editor, Weidenmüller, H. A., editor, Wess, J., editor, Zittartz, J., editor, Beiglböck, W., editor, Winnewisser, G., and Armstrong, J. T.

Published
1989
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11. 2002-2003 Arctic ozone loss deduced from POAM III satellite observations and the SLIMCAT chemical transport model

Author

Singleton, C. S., Randall, C. E., Martyn Chipperfield, Davies, S., Feng, W., Bevilacqua, R. M., Hoppel, K. W., Fromm, M. D., Manney, G. L., Harvey, V. L., Laboratory for Atmospheric and Space Physics [Boulder] (LASP), University of Colorado [Boulder], Institute for Climate and Atmospheric Science [Leeds] (ICAS), School of Earth and Environment [Leeds] (SEE), University of Leeds-University of Leeds, Naval Research Laboratory (NRL), Computational Physics, Inc., Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Department of Natural Sciences, New Mexico Highlands University, and EGU, Publication

Subjects
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, 13. Climate action, [SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere
Abstract

The SLIMCAT three-dimensional chemical transport model (CTM) is used to infer chemical ozone loss from Polar Ozone and Aerosol Measurement (POAM) III observations of stratospheric ozone during the Arctic winter of 2002–2003. Inferring chemical ozone loss from satellite data requires quantifying ozone variations due to dynamical processes. To accomplish this, the SLIMCAT model was run in a "passive" mode from early December until the middle of March. In these runs, ozone is treated as an inert, dynamical tracer. Chemical ozone loss is inferred by subtracting the model passive ozone, evaluated at the time and location of the POAM observations, from the POAM measurements themselves. This "CTM Passive Subtraction" technique relies on accurate initialization of the CTM and a realistic description of vertical/horizontal transport, both of which are explored in this work. The analysis suggests that chemical ozone loss during the 2002–2003 winter began in late December. This loss followed a prolonged period in which many polar stratospheric clouds were detected, and during which vortex air had been transported to sunlit latitudes. A series of stratospheric warming events starting in January hindered chemical ozone loss later in the winter of 2003. Nevertheless, by 15 March, the final date of the analysis, ozone loss maximized at 425 K at a value of about 1.2 ppmv, a moderate amount of loss compared to loss during the unusually cold winters in the late-1990s. SLIMCAT was also run with a detailed stratospheric chemistry scheme to obtain the model-predicted loss. The SLIMCAT model simulation also shows a maximum ozone loss of 1.2 ppmv at 425 K, and the morphology of the loss calculated by SLIMCAT was similar to that inferred from the POAM data. These results from the recently updated version of SLIMCAT therefore give a much better quantitative description of polar chemical ozone loss than older versions of the same model. Both the inferred and modeled loss calculations show the early destruction in late December and the region of maximum loss descending in altitude through the remainder of the winter and early spring.

Published
2005

13. The Navy Precision Optical Interferometer (NPOI): An Update

Author

NAVAL RESEARCH LAB WASHINGTON DC REMOTE SENSING DIV, Armstrong, J T, Hutter, D J, Baines, E K, Benson, J A, Bevilacqua, R M, Buschmann, T, Clark, III, J H, Ghasempour, A, Hall, J C, Hindsley, R B, NAVAL RESEARCH LAB WASHINGTON DC REMOTE SENSING DIV, Armstrong, J T, Hutter, D J, Baines, E K, Benson, J A, Bevilacqua, R M, Buschmann, T, Clark, III, J H, Ghasempour, A, Hall, J C, and Hindsley, R B

Abstract

The Navy Precision Optical Interferometer (NPOI) has two purposes: wide angle precise astrometry and high-resolution imaging, both at visible wavelengths. It operates with up to six 12-cm diameter apertures simultaneously, with baseline lengths (distances between array elements) from 16 m to 79 m and disperses the combined light into 16 spectral channels. It has been operational since first fringes were found in 1994; six-beam operations began in 2001. The NPOI is undergoing upgrades in numerous areas: control system and data acquisition improvements, a second beam combiner, additional array stations for both longer and shorter baselines, and supplemental delay lines to improve sky coverage for the longer baselines. Future possibilities include the installation of four fixed 1.8 telescopes as well as up to six moveable lightweight 1.4 m telescopes. Observing programs, including programs led by outside investigators, cover a broad range of stellar astrophysics as well as observations of geostationary satellites., Published in the Journal of Astronomical Instrumentation, 2013. The original document contains color images. Prepared in collaboration with US Naval Observatory Flagstaff Station, AZ. Prepared in cooperation with Arizona Embedded Systems LLC, Flagstaff, the Optical Spectroscopy Division, HORIBA Scientific, Edison, NJ, the Lowell Observatory, Flagstaff, AZ, the Electrical Engineering Department, New Mexico Institute of Mining and Technology, Socorro, Seabrook Engineering, Seabrook, MD, the Center of Excellence in Information Systems and Department of Mathematical Sciences, College of Engineering, Tennessee State University, Nashville, and the Department of Physics, Central Michigan University, Mt. Pleasant. Sponsored in part by the Oceanographer of the Navy.

Published
2013

14. THE NAVY PRECISION OPTICAL INTERFEROMETER (NPOI): AN UPDATE

Author

ARMSTRONG, J. T., primary, HUTTER, D. J., additional, BAINES, E. K., additional, BENSON, J. A., additional, BEVILACQUA, R. M., additional, BUSCHMANN, T., additional, CLARK, J. H., additional, GHASEMPOUR, A., additional, HALL, J. C., additional, HINDSLEY, R. B., additional, JOHNSTON, K. J., additional, JORGENSEN, A. M., additional, MOZURKEWICH, D., additional, MUTERSPAUGH, M. W., additional, RESTAINO, S. R., additional, SHANKLAND, P. D., additional, SCHMITT, H. R., additional, TYCNER, C., additional, VAN BELLE, G. T., additional, and ZAVALA, R. T., additional

Published
2013
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15. Comparison of ER-2 aircraft and POAM III, MLS, and SAGE II satellite measurements during SOLVE using traditional correlative analysis and trajectory hunting technique

Author

Danilin, M. Y., Ko, M. K. W., Bevilacqua, R. M., Lyjak, L. V., Froidevaux, L., Santee, M. L., Zawodny, J. M., Hoppel, K. W., Richard, E. C., Spackman, J. R., Weinstock, E. M., Herman, R. L., McKinney, K. A., Wennberg, P. O., Eisele, F. L., Stimpfle, R. M., Scott, C. J., Elkins, J. W., and Bui, T. V.

Abstract

We compared the version 5 Microwave Limb Sounder (MLS), version 3 Polar Ozone and Aerosol Measurement III (POAM III), version 6.0 Stratospheric Aerosol and Gas Experiment II (SAGE II), and NASA ER-2 aircraft measurements made in the Northern Hemisphere in January–February 2000 during the SAGE III Ozone Loss and Validation Experiment (SOLVE). This study addresses one of the key scientific objectives of the SOLVE campaign, namely, to validate multiplatform satellite measurements made in the polar stratosphere during winter. This intercomparison was performed by using a traditional correlative analysis (TCA) and a trajectory hunting technique (THT). TCA compares profiles colocated within a chosen spatial-temporal vicinity. Launching backward and forward trajectories from the points of measurement, the THT identifies air parcels sampled at least twice within a prescribed match criterion during the course of 5 days. We found that the ozone measurements made by these four instruments agree most of the time within ±10% in the stratosphere up to 1400 K (∼35 km). The water vapor measurements from POAM III and the ER-2 Harvard Lyman α hygrometer and Jet Propulsion Laboratory laser hygrometer agree to within ±0.5 ppmv (or about ±10%) in the lower stratosphere above 380 K. The MLS and ER-2 ClO measurements agree within their error bars for the TCA. The MLS and ER-2 nitric acid measurements near 17- to 20-km altitude agree within their uncertainties most of the time with a hint of a positive offset by MLS according to the TCA. We also applied the Atmospheric and Environmental Research, Inc. box model constrained by the ER-2 measurements for analysis of the ClO and HNO3 measurements using the THT. We found that: (1) the model values of ClO are smaller by about 0.3–0.4 (0.2) ppbv below (above) 400 K than those by MLS and (2) the HNO3 comparison shows a positive offset of MLS values by ∼1 and 1–2 ppbv below 400 K and near 450 K, respectively. Our study shows that, with some limitations (like HNO3 comparison under polar stratospheric cloud conditions), the THT is a more powerful tool for validation studies than the TCA, making conclusions of the comparison statistically more robust.

Published
2002

16. Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Author

Burrows, J. P., Christensen, T., Dupuy, E., Walker, K. A., Kar, J., Boone, C. D., McElroy, C. T., Bernath, P. F., Drummond, J. R., Skelton, R., McLeod, S. D., Hughes, R. C., Nowlan, C. R., Dufour, D. G., Zou, J., Nichitiu, F., Strong, K., Baron, P., Bevilacqua, R. M., Blumenstock, T., Bodeker, G. E., Borsdorff, T., Bourassa, A. E., Bovensmann, H., Boyd, I. S., Bracher, Astrid, Brogniez, C., Catoire, V., Ceccherini, S., Chabrillat, S., Coffey, M. T., Cortesi, U., Davies, J., De Clercq, C., Degenstein, D. A., De Maziere, M., Demoulin, P., Dodion, J., Firanski, B., Fischer, Hubertus, Forbes, G., Froidevaux, L., Fussen, D., Gerard, P., Godin-Beekmann, S., Goutail, F., Granville, J., Griffith, D., Haley, C. S., Hannigan, J. W., Höpfner, M., Jin, J. J., Jones, A., Jones, N. B., Jucks, K., Kagawa, A., Kasai, Y., Kerzenmacher, T. E., Kleinböhl, A., Klekociuk, A. R., Kramer, I., Küllmann, H., Kuttippurath, J., Kyrölä, E., Lambert, J. C., Livesey, N. J., Llewellyn, E. J., Lloyd, N. D., Mahieu, E., Manney, G. L., Marshall, B. T., McConnell, J. C., McCormick, M. P., McDermid, I. S., McHugh, M., McLinden, C. A., Mellqvist, J., Mizutani, K., Murayama, Y., Murtagh, D. P., Oelhaf, H., Parrish, A., Petelina, S. V., Piccolo, C., Pommereau, J.-P., Randall, C. E., Robert, C., Roth, C., Russell III, J. M., Schneider, M., Senten, C., Steck, T., Strandberg, A., Strawbridge, K. B., Sussmann, R., Swart, D. P. J., Tarasick, D. W., Taylor, James, Tétard, C., Thomason, L. W., Thompson, A. M., Tully, M. B., Urban, J., Vanhellemont, F., von Clarmann, T., von der Gathen, Peter, von Savigny, C., Waters, J. W., Witte, J. C., Wolff, Martha Maria, Zawodny, J. M., Burrows, J. P., Christensen, T., Dupuy, E., Walker, K. A., Kar, J., Boone, C. D., McElroy, C. T., Bernath, P. F., Drummond, J. R., Skelton, R., McLeod, S. D., Hughes, R. C., Nowlan, C. R., Dufour, D. G., Zou, J., Nichitiu, F., Strong, K., Baron, P., Bevilacqua, R. M., Blumenstock, T., Bodeker, G. E., Borsdorff, T., Bourassa, A. E., Bovensmann, H., Boyd, I. S., Bracher, Astrid, Brogniez, C., Catoire, V., Ceccherini, S., Chabrillat, S., Coffey, M. T., Cortesi, U., Davies, J., De Clercq, C., Degenstein, D. A., De Maziere, M., Demoulin, P., Dodion, J., Firanski, B., Fischer, Hubertus, Forbes, G., Froidevaux, L., Fussen, D., Gerard, P., Godin-Beekmann, S., Goutail, F., Granville, J., Griffith, D., Haley, C. S., Hannigan, J. W., Höpfner, M., Jin, J. J., Jones, A., Jones, N. B., Jucks, K., Kagawa, A., Kasai, Y., Kerzenmacher, T. E., Kleinböhl, A., Klekociuk, A. R., Kramer, I., Küllmann, H., Kuttippurath, J., Kyrölä, E., Lambert, J. C., Livesey, N. J., Llewellyn, E. J., Lloyd, N. D., Mahieu, E., Manney, G. L., Marshall, B. T., McConnell, J. C., McCormick, M. P., McDermid, I. S., McHugh, M., McLinden, C. A., Mellqvist, J., Mizutani, K., Murayama, Y., Murtagh, D. P., Oelhaf, H., Parrish, A., Petelina, S. V., Piccolo, C., Pommereau, J.-P., Randall, C. E., Robert, C., Roth, C., Russell III, J. M., Schneider, M., Senten, C., Steck, T., Strandberg, A., Strawbridge, K. B., Sussmann, R., Swart, D. P. J., Tarasick, D. W., Taylor, James, Tétard, C., Thomason, L. W., Thompson, A. M., Tully, M. B., Urban, J., Vanhellemont, F., von Clarmann, T., von der Gathen, Peter, von Savigny, C., Waters, J. W., Witte, J. C., Wolff, Martha Maria, and Zawodny, J. M.

Abstract

This paper presents extensive {bias determination} analyses of ozone observations from the Atmospheric Chemistry Experiment (ACE) satellite instruments: the ACE Fourier Transform Spectrometer (ACE-FTS) and the Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation (ACE-MAESTRO) instrument. Here we compare the latest ozone data products from ACE-FTS and ACE-MAESTRO with coincident observations from nearly 20 satellite-borne, airborne, balloon-borne and ground-based instruments, by analysing volume mixing ratio profiles and partial column densities. The ACE-FTS version 2.2 Ozone Update product reports more ozone than most correlative measurements from the upper troposphere to the lower mesosphere. At altitude levels from 16 to 44 km, the average values of the mean relative differences are nearly all within +1 to +8%. At higher altitudes (4560 km), the ACE-FTS ozone amounts are significantly larger than those of the comparison instruments, with mean relative differences of up to +40% (about +20% on average). For the ACE-MAESTRO version 1.2 ozone data product, mean relative differences are within ±10% (average values within ±6%) between 18 and 40 km for both the sunrise and sunset measurements. At higher altitudes (~3555 km), systematic biases of opposite sign are found between the ACE-MAESTRO sunrise and sunset observations. While ozone amounts derived from the ACE-MAESTRO sunrise occultation data are often smaller than the coincident observations (with mean relative differences down to −10%), the sunset occultation profiles for ACE-MAESTRO show results that are qualitatively similar to ACE-FTS, indicating a large positive bias (mean relative differences within +10 to +30%) in the 4555 km altitude range. In contrast, there is no significant systematic difference in bias found for the ACE-FTS sunrise and sunset measurements.

Published
2009

17. Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Author

Jones, Nicholas B, Griffith, David W, Wolff, M, Mahieu, E, Bodeker, G, Boyd, I, De Maziere, M, Demoulin, P, Blumenstock, T, Murayama, Y., Kagawa, A., Jin, J, McElroy, Christopher, Hannigan, J, Coffey, M, Hopfner, M, Fischer, H W, Kerzenmacher, T, Kramer, I, Mellqvist, J, Sussmann, R, Strong, K, Taylor, J R, Mizutani, K, Kasai, Y, Urban, J, Murtagh, D, Dupuy, E, Catoire, V, Chabrillat, S, Baron, P, Brogniez, C, Manney, G L, Piccolo, C, Randall, C, Robert, C, Senten, C, Tetard, C, Livesey, N J, Kleinbohl, A, Godin-Beekmann, S, Borsdorff, T, Drummond, James, De Clercq, C, Lambert, J C, Cortesi, U, Jucks, K W, Boone, C, Oelhaf, H, Schneider, M, Steck, T, Walker, K A, Bernath, P, von Clarmann, T, Hughes, R, Vigouroux, C, Kuttippurath, J, Bracher, A, McConnell, J, McLinden, C, Kullmann, H, Froidevaux, L, Dodion, J, Vanhellemont, F, Burrows, J P, kar, J, Goutail, F, Dufour, D G, Zawodny, J M, Nichitiu, F, Pommereau, J-P, Nowlan, C, Fussen, D, Zou, J, Klekociuk, A R, Forbes, G, Bovensmann, H, Bevilacqua, R M, Haley, C, Ceccherini, S, McLeod, S D, Gerard, P, Skelton, R, Firanski, B, Bourassa, A E, Degenstein, D A, Davies, J, Christensen, T, Granville, J, Parrish, A, Roth, C, Waters, J W, von Savigny, C, Standberg, A, McHugh, M, Thompson, A M, Llewellyn, E J, von der Gathen, P, Tully, M B, Witte, J C, Marshall, B T, Strawbridge, K B, Kyrola, E, McCormick, M P, Swart, D P J, Lloyd, N D, Tarasick, D W, Petelina, S V, Thomason, L W, Jones, A, McDermid, I S, Jones, Nicholas B, Griffith, David W, Wolff, M, Mahieu, E, Bodeker, G, Boyd, I, De Maziere, M, Demoulin, P, Blumenstock, T, Murayama, Y., Kagawa, A., Jin, J, McElroy, Christopher, Hannigan, J, Coffey, M, Hopfner, M, Fischer, H W, Kerzenmacher, T, Kramer, I, Mellqvist, J, Sussmann, R, Strong, K, Taylor, J R, Mizutani, K, Kasai, Y, Urban, J, Murtagh, D, Dupuy, E, Catoire, V, Chabrillat, S, Baron, P, Brogniez, C, Manney, G L, Piccolo, C, Randall, C, Robert, C, Senten, C, Tetard, C, Livesey, N J, Kleinbohl, A, Godin-Beekmann, S, Borsdorff, T, Drummond, James, De Clercq, C, Lambert, J C, Cortesi, U, Jucks, K W, Boone, C, Oelhaf, H, Schneider, M, Steck, T, Walker, K A, Bernath, P, von Clarmann, T, Hughes, R, Vigouroux, C, Kuttippurath, J, Bracher, A, McConnell, J, McLinden, C, Kullmann, H, Froidevaux, L, Dodion, J, Vanhellemont, F, Burrows, J P, kar, J, Goutail, F, Dufour, D G, Zawodny, J M, Nichitiu, F, Pommereau, J-P, Nowlan, C, Fussen, D, Zou, J, Klekociuk, A R, Forbes, G, Bovensmann, H, Bevilacqua, R M, Haley, C, Ceccherini, S, McLeod, S D, Gerard, P, Skelton, R, Firanski, B, Bourassa, A E, Degenstein, D A, Davies, J, Christensen, T, Granville, J, Parrish, A, Roth, C, Waters, J W, von Savigny, C, Standberg, A, McHugh, M, Thompson, A M, Llewellyn, E J, von der Gathen, P, Tully, M B, Witte, J C, Marshall, B T, Strawbridge, K B, Kyrola, E, McCormick, M P, Swart, D P J, Lloyd, N D, Tarasick, D W, Petelina, S V, Thomason, L W, Jones, A, and McDermid, I S

Abstract

This paper presents extensive bias determination analyses of ozone observations from the Atmospheric Chemistry Experiment (ACE) satellite instruments: the ACE Fourier Transform Spectrometer (ACE-FTS) and the Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation (ACE-MAESTRO) instrument. Here we compare the latest ozone data products from ACE-FTS and ACE-MAESTRO with coincident observations from nearly 20 satellite-borne, airborne, balloonborne and ground-based instruments, by analysing volume mixing ratio profiles and partial column densities. The ACEFTS version 2.2 Ozone Update product reports more ozone than most correlative measurements from the upper troposphere to the lower mesosphere. At altitude levels from 16 to 44 km, the average values of the mean relative differences are nearly all within +1 to +8%. At higher altitudes (45¿60 km), the ACE-FTS ozone amounts are significantly larger than those of the comparison instruments, with mean relative differences of up to +40% (about +20% on average). For the ACE-MAESTRO version 1.2 ozone data product, mean relative differences are within +10% (average values within +6%) between 18 and 40 km for both the sunrise and sunset measurements. At higher altitudes (35¿55 km), systematic biases of opposite sign are found between the ACEMAESTRO sunrise and sunset observations. While ozone amounts derived from the ACE-MAESTRO sunrise occultation data are often smaller than the coincident observations (with mean relative differences down to ¿10%), the sunset occultation profiles for ACE-MAESTRO show results that are qualitatively similar to ACE-FTS, indicating a large positive bias (mean relative differences within +10 to +30%) in the 45¿55 km altitude range. In contrast, there is no significant systematic difference in bias found for the ACE-FTS sunrise and sunset measurements.

Published
2009

18. Ozone profiles in the high-latitude stratosphere and lower mesosphere measured by the Improved Limb Atmospheric Spectrometer (ILAS)-II: Comparison with other satellite sensors and ozonesondes

Author

Sugita, T., Nakajima, H., Yokota, T., Kanzawa, H., Gernandt, Hartwig, Herber, Andreas, von der Gathen, Peter, König-Langlo, Gert, Sato, K., Dorokhov, V., Yushkov, V. A., Murayama, Y., Yamamori, M., Godin-Beekmann, S., Goutail, F., Roscoe, H. K., Deshler, T., Yela, M., Taalas, P., Kyrö, E., Oltmans, S. J., Johnson, B. J., Allaart, M., Litynska, Z., Klekociuk, A., Andersen, S. B., Braathen, G. O., De Backer, H., Randall, C. E., Bevilacqua, R. M., Taha, G., Thomason, L. W., Irie, H., Ejiri, M. K., Saitoh, N., Tanaka, T., Terao, Y., Kobayashi, H., Sasano, Y., Sugita, T., Nakajima, H., Yokota, T., Kanzawa, H., Gernandt, Hartwig, Herber, Andreas, von der Gathen, Peter, König-Langlo, Gert, Sato, K., Dorokhov, V., Yushkov, V. A., Murayama, Y., Yamamori, M., Godin-Beekmann, S., Goutail, F., Roscoe, H. K., Deshler, T., Yela, M., Taalas, P., Kyrö, E., Oltmans, S. J., Johnson, B. J., Allaart, M., Litynska, Z., Klekociuk, A., Andersen, S. B., Braathen, G. O., De Backer, H., Randall, C. E., Bevilacqua, R. M., Taha, G., Thomason, L. W., Irie, H., Ejiri, M. K., Saitoh, N., Tanaka, T., Terao, Y., Kobayashi, H., and Sasano, Y.

Published
2006

19. Validation of POAM III Ozone Data

Author

Randall, C. E., Rusch, D. W., Bevilacqua, R. M., Hoppel, K. W., Lumpe, J. D., Shettle, E., Thompson, E., Deaver, L., Zawodny, J., Kyrö, E., Kelder, H., Dorokhov, V. M., König-Langlo, Gert, Randall, C. E., Rusch, D. W., Bevilacqua, R. M., Hoppel, K. W., Lumpe, J. D., Shettle, E., Thompson, E., Deaver, L., Zawodny, J., Kyrö, E., Kelder, H., Dorokhov, V. M., and König-Langlo, Gert

Published
2003

20. Chemical loss of ozone during the Arctic winter of 1999/2000: An analysis based on balloon-borne observations

Author

Salawitch, R. J., Margitan, J. J., Sen, B., Toon, G. C., Osterman, G. B., Rex, Markus, Elkins, J. W., Ray, E. A., Moore, F. L., Hurst, D. F., Romashkin, P. A., Bevilacqua, R. M., Hoppel, K. W., Richard, E. C., Bui, T. P., Salawitch, R. J., Margitan, J. J., Sen, B., Toon, G. C., Osterman, G. B., Rex, Markus, Elkins, J. W., Ray, E. A., Moore, F. L., Hurst, D. F., Romashkin, P. A., Bevilacqua, R. M., Hoppel, K. W., Richard, E. C., and Bui, T. P.

Abstract

Simultaneous balloon-borne observations of ozone (O3) and nitrous oxide (N2O), a long-livedtracer of dynamical motion, are used to quantify the chemical loss of ozone in the Arctic vortexduring the winter of 1999/2000. Chemical loss of ozone occurred between altitudes of about 14 and22 km (pressures from ~120 to 30 mbar) and resulted in a 61 ± 13 Dobson unit reduction in totalcolumn ozone between late November 1999 and 5 March 2000 (the date of the last balloon-bornemeasurement considered here). This loss estimate is valid for the core of the vortex during the timeperiod covered by the observations. It is shown that the observed changes in the O3 versus N2Orelation were almost entirely due to chemistry and could not have been caused by dynamics. Thechemical loss of column ozone inferred from the balloon-borne measurements using the "ozoneversus tracer" technique is shown to compare well with estimates of chemical loss found usingboth the Match technique (as applied to independent ozonesonde data) and the "vortex-averageddescent" technique (as applied to Polar Ozone and Aerosol Measurement (POAM) III satellitemeasurements of ozone). This comparison establishes the validity of each approach for estimatingchemical loss of column ozone for the Arctic winter of 1999/2000.

Published
2002

21. Reconstruction of three-dimensional ozone fields using POAM III during SOLVE

Author

Randall, C. E., Lumpe, J. D., Bevilacqua, R. M., Hoppel, K. W., Fromm, M. D., Salawitch, R. J., Swartz, W. H., Lloyd, S. A., Kyrö, E., Claude, H., Davies, J., DeBacker, H., Dier, H., Molyneux, M. J., Sancho, J., von der Gathen, Peter, Randall, C. E., Lumpe, J. D., Bevilacqua, R. M., Hoppel, K. W., Fromm, M. D., Salawitch, R. J., Swartz, W. H., Lloyd, S. A., Kyrö, E., Claude, H., Davies, J., DeBacker, H., Dier, H., Molyneux, M. J., Sancho, J., and von der Gathen, Peter

Abstract

In this paper we demonstrate the utility of the Polar Ozone and Aerosol Measurement (POAM)III data for providing semiglobal three-dimensional ozone fields during the Stratospheric Aerosoland Gas Experiment (SAGE) III Ozone Loss and Validation Experiment (SOLVE) winter. As asolar occultation instrument, POAM III measurements were limited to latitudes of 63°N to 68°Nduring the SOLVE campaign but covered a wide range of potential vorticity. Using establishedmapping techniques, we have used the relation between potential vorticity and ozone measured byPOAM III to calculate three-dimensional ozone mixing ratio fields throughout the NorthernHemisphere on a daily basis during the 1999/2000 winter. To validate the results, we haveextensively compared profiles obtained from ozonesondes and the Halogen Occultation Experimentto the proxy O3 interpolated horizontally and vertically to the correlative measurement locations. Onaverage, the proxy O3 agrees with the correlative observations to better than ~5%, at potentialtemperatures below about 900 K and latitudes above about 30°N, demonstrating the reliability ofthe reconstructed O3 fields in these regions. We discuss the application of the POAM proxy ozoneprofiles for calculating photolysis rates along the ER-2 and DC-8 flight tracks during the SOLVEcampaign, and we present a qualitative picture of the evolution of polar stratospheric ozonethroughout the winter.

Published
2002

22. Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Author

Dupuy, E., primary, Walker, K. A., additional, Kar, J., additional, Boone, C. D., additional, McElroy, C. T., additional, Bernath, P. F., additional, Drummond, J. R., additional, Skelton, R., additional, McLeod, S. D., additional, Hughes, R. C., additional, Nowlan, C. R., additional, Dufour, D. G., additional, Zou, J., additional, Nichitiu, F., additional, Strong, K., additional, Baron, P., additional, Bevilacqua, R. M., additional, Blumenstock, T., additional, Bodeker, G. E., additional, Borsdorff, T., additional, Bourassa, A. E., additional, Bovensmann, H., additional, Boyd, I. S., additional, Bracher, A., additional, Brogniez, C., additional, Burrows, J. P., additional, Catoire, V., additional, Ceccherini, S., additional, Chabrillat, S., additional, Christensen, T., additional, Coffey, M. T., additional, Cortesi, U., additional, Davies, J., additional, De Clercq, C., additional, Degenstein, D. A., additional, De Mazière, M., additional, Demoulin, P., additional, Dodion, J., additional, Firanski, B., additional, Fischer, H., additional, Forbes, G., additional, Froidevaux, L., additional, Fussen, D., additional, Gerard, P., additional, Godin-Beekmann, S., additional, Goutail, F., additional, Granville, J., additional, Griffith, D., additional, Haley, C. S., additional, Hannigan, J. W., additional, Höpfner, M., additional, Jin, J. J., additional, Jones, A., additional, Jones, N. B., additional, Jucks, K., additional, Kagawa, A., additional, Kasai, Y., additional, Kerzenmacher, T. E., additional, Kleinböhl, A., additional, Klekociuk, A. R., additional, Kramer, I., additional, Küllmann, H., additional, Kuttippurath, J., additional, Kyrölä, E., additional, Lambert, J.-C., additional, Livesey, N. J., additional, Llewellyn, E. J., additional, Lloyd, N. D., additional, Mahieu, E., additional, Manney, G. L., additional, Marshall, B. T., additional, McConnell, J. C., additional, McCormick, M. P., additional, McDermid, I. S., additional, McHugh, M., additional, McLinden, C. A., additional, Mellqvist, J., additional, Mizutani, K., additional, Murayama, Y., additional, Murtagh, D. P., additional, Oelhaf, H., additional, Parrish, A., additional, Petelina, S. V., additional, Piccolo, C., additional, Pommereau, J.-P., additional, Randall, C. E., additional, Robert, C., additional, Roth, C., additional, Schneider, M., additional, Senten, C., additional, Steck, T., additional, Strandberg, A., additional, Strawbridge, K. B., additional, Sussmann, R., additional, Swart, D. P. J., additional, Tarasick, D. W., additional, Taylor, J. R., additional, Tétard, C., additional, Thomason, L. W., additional, Thompson, A. M., additional, Tully, M. B., additional, Urban, J., additional, Vanhellemont, F., additional, Vigouroux, C., additional, von Clarmann, T., additional, von der Gathen, P., additional, von Savigny, C., additional, Waters, J. W., additional, Witte, J. C., additional, Wolff, M., additional, and Zawodny, J. M., additional

Published
2009
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23. Diurnal variations of mesospheric ozone obtained by ground-based microwave radiometry

Author

Zommerfelds, W. C, Kunzi, K. F, Summers, M. E, Bevilacqua, R. M, and Strobel, D. F

Subjects
Geophysics
Abstract

From December 1986 until April 1987 ground-based microwave observations of the diurnal variation of mesospheric ozone were made over Bern, Switzerland. These data were of sufficient quality to define the characteristics diurnal behavior of the ozone mixing ratio during winter and equinoctial conditions. The observed diurnal variation of ozone peaks at about 74 km, where its amplitude is about a factor of 6. At 65 km the observed diurnal variation is a factor of 3, whereas at 55 km it is only a factor of 1.4. One-dimensional model calculations accurately reproduce the relative diurnal variation of ozone at equinox, suggesting that the model value of the ozone photolysis rate coefficient is accurate to better that 10 percent. For winter conditions, however, the model underpredicts the observed relative diurnal variation by a factor of 2; a major part of this discrepancy is due to an observed postmidnight increase in ozone. Various suggested changes in model parameters to better produce the ozone abundance vertical profile result in only small differences in the relative diurnal variation, indicating that these observations do not provide a sensitive test of the mesospheric chemistry controlling the abundance of odd oxygen.

Published
1989

24. Possible seasonal variability of mesospheric water vapor

Author

Bevilacqua, R. M, Schwartz, P. R, Wilson, W. J, Ricketts, W. B, and Howard, R. J

Subjects
Meteorology And Climatology
Abstract

Ground-based spectral line measurements of the 22.2 GHz water vapor line in atmospheric emission were made at the Jet Propulsion Laboratory, which have been used to deduce the mesospheric water vapor profile. The measurements were made nearly continuously in the spring and early summer of 1984. The results indicate a temporal increase in the water vapor mixing ratio in the upper mesosphere from April through June. At 75 km, this increase is nearly by a factor of 2. Comparison of the present results with the results of a similar series of measurements made at the Haystack (radio astronomy) Observatory indicate that this temporal increase is part of a seasonal variation.

Published
1985

25. Seasonal variability of mesospheric water vapor

Author

Schwartz, P. R, Bevilacqua, R. M, Wilson, W. J, Ricketts, W. B, and Howard, R. J

Subjects
Geophysics
Abstract

Ground-based spectral line measurements of the 22.2 GHz atmospheric water vapor line in emission were made at the JPL in order to obtain data in a dry climate, and to confirm similar measurements made at the Haystack Observatory. The results obtained from March 1984 to July 1984 and from December 1984 to May 1985, were based on data recorded by a HP9816 microcomputer. The instrument spectrometer was a 64 channel, 62.5 kHz resolution filter bank. Data indicates the existence of a seasonal variation in the abundance of water vapor in the upper mesosphere, with mixing ratios higher in summer than in spring. This is consistent with recent theoretical and observational results. In the area of semiannual oscillation, Haystack data are more consistent than those of JPL, indicating an annual cycle with abundances at maximum in summer and minimum in winter.

Published
1985

26. Technical Note: Validation of Odin/SMR limb observations of ozone, comparisons with OSIRIS, POAM III, ground-based and balloon-borne instruments

Author

Jégou, F., primary, Urban, J., additional, de La Noë, J., additional, Ricaud, P., additional, Le Flochmoën, E., additional, Murtagh, D. P., additional, Eriksson, P., additional, Jones, A., additional, Petelina, S., additional, Llewellyn, E. J., additional, Lloyd, N. D., additional, Haley, C., additional, Lumpe, J., additional, Randall, C., additional, Bevilacqua, R. M., additional, Catoire, V., additional, Huret, N., additional, Berthet, G., additional, Renard, J. B., additional, Strong, K., additional, Davies, J., additional, Mc Elroy, C. T., additional, Goutail, F., additional, and Pommereau, J. P., additional

Published
2008
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28. Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE)

Author

Dupuy, E., primary, Walker, K. A., additional, Kar, J., additional, Boone, C. D., additional, McElroy, C. T., additional, Bernath, P. F., additional, Drummond, J. R., additional, Skelton, R., additional, McLeod, S. D., additional, Hughes, R. C., additional, Nowlan, C. R., additional, Dufour, D. G., additional, Zou, J., additional, Nichitiu, F., additional, Strong, K., additional, Baron, P., additional, Bevilacqua, R. M., additional, Blumenstock, T., additional, Bodeker, G. E., additional, Borsdorff, T., additional, Bourassa, A. E., additional, Bovensmann, H., additional, Boyd, I. S., additional, Bracher, A., additional, Brogniez, C., additional, Burrows, J. P., additional, Catoire, V., additional, Ceccherini, S., additional, Chabrillat, S., additional, Christensen, T., additional, Coffey, M. T., additional, Cortesi, U., additional, Davies, J., additional, De Clercq, C., additional, Degenstein, D. A., additional, De Mazière, M., additional, Demoulin, P., additional, Dodion, J., additional, Firanski, B., additional, Fischer, H., additional, Forbes, G., additional, Froidevaux, L., additional, Fussen, D., additional, Gerard, P., additional, Godin-Beekman, S., additional, Goutail, F., additional, Granville, J., additional, Griffith, D., additional, Haley, C. S., additional, Hannigan, J. W., additional, Höpfner, M., additional, Jin, J. J., additional, Jones, A., additional, Jones, N. B., additional, Jucks, K., additional, Kagawa, A., additional, Kasai, Y., additional, Kerzenmacher, T. E., additional, Kleinböhl, A., additional, Klekociuk, A. R., additional, Kramer, I., additional, Küllmann, H., additional, Kuttippurath, J., additional, Kyrölä, E., additional, Lambert, J.-C., additional, Livesey, N. J., additional, Llewellyn, E. J., additional, Lloyd, N. D., additional, Mahieu, E., additional, Manney, G. L., additional, Marshall, B. T., additional, McConnell, J. C., additional, McCormick, M. P., additional, McDermid, I. S., additional, McHugh, M., additional, McLinden, C. A., additional, Mellqvist, J., additional, Mizutani, K., additional, Murayama, Y., additional, Murtagh, D. P., additional, Oelhaf, H., additional, Parrish, A., additional, Petelina, S. V., additional, Piccolo, C., additional, Pommereau, J.-P., additional, Randall, C. E., additional, Robert, C., additional, Roth, C., additional, Schneider, M., additional, Senten, C., additional, Steck, T., additional, Strandberg, A., additional, Strawbridge, K. B., additional, Sussmann, R., additional, Swart, D. P. J., additional, Tarasick, D. W., additional, Taylor, J. R., additional, Tétard, C., additional, Thomason, L. W., additional, Thompson, A. M., additional, Tully, M. B., additional, Urban, J., additional, Vanhellemont, F., additional, von Clarmann, T., additional, von der Gathen, P., additional, von Savigny, C., additional, Waters, J. W., additional, Witte, J. C., additional, Wolff, M., additional, and Zawodny, J. M., additional

Published
2008
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29. The polar ozone and aerosol measurements (POAM III) instrument and early validation results

Author

Lucke, R. L., Korwan, D. R., Bevilacqua, R. M., Hornstein, J. S., Shettle, E. P., Chen, D. T., Daehler, M., Lumpe, J. D., Fromm, M. D., Debrestian, D., Neff, Basil, Squire, M., König-Langlo, Gert, Davies, J., Lucke, R. L., Korwan, D. R., Bevilacqua, R. M., Hornstein, J. S., Shettle, E. P., Chen, D. T., Daehler, M., Lumpe, J. D., Fromm, M. D., Debrestian, D., Neff, Basil, Squire, M., König-Langlo, Gert, and Davies, J.

Abstract

Polar Ozone and Aerosol Measurement (POAM) III,a follow-on to the successful POAM II, is a spaceborne experiment designedto measure the vertical profiles of ozone, water vapor, nitrogen dioxide,and aerosol extinction in the polar stratosphere and upper troposphere witha vertical resolution of 1-2 km. Measurements are made by the solaroccultation technique. POAM III, now in polar orbit aboard the SPOT 4 satellite,is providing data on north- and south-polar ozone phenomena, including the south-polar ozone hole, and on the spatial and temporal variability of stratosphericaerosols, polar stratospheric clouds, and polar mesospheric clouds.Differences between POAM III and POAM II instruments are described.First validation of POAM III products by comparison with HalogenOccultation Experiment and ozonesonde data are presented.

Published
1999

31. Intercomparison of ILAS-II version 1.4 aerosol extinction coefficient at 780 nm with SAGE II, SAGE III, and POAM III

Author

Saitoh, N., primary, Hayashida, S., additional, Sugita, T., additional, Nakajima, H., additional, Yokota, T., additional, Hayashi, M., additional, Shiraishi, K., additional, Kanzawa, H., additional, Ejiri, M. K., additional, Irie, H., additional, Tanaka, T., additional, Terao, Y., additional, Bevilacqua, R. M., additional, Randall, C. E., additional, Thomason, L. W., additional, Taha, G., additional, Kobayashi, H., additional, and Sasano, Y., additional

Published
2006
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32. Ozone profiles in the high-latitude stratosphere and lower mesosphere measured by the Improved Limb Atmospheric Spectrometer (ILAS)-II: Comparison with other satellite sensors and ozonesondes

Author

Sugita, T., primary, Nakajima, H., additional, Yokota, T., additional, Kanzawa, H., additional, Gernandt, H., additional, Herber, A., additional, von der Gathen, P., additional, König-Langlo, G., additional, Sato, K., additional, Dorokhov, V., additional, Yushkov, V. A., additional, Murayama, Y., additional, Yamamori, M., additional, Godin-Beekmann, S., additional, Goutail, F., additional, Roscoe, H. K., additional, Deshler, T., additional, Yela, M., additional, Taalas, P., additional, Kyrö, E., additional, Oltmans, S. J., additional, Johnson, B. J., additional, Allaart, M., additional, Litynska, Z., additional, Klekociuk, A., additional, Andersen, S. B., additional, Braathen, G. O., additional, De Backer, H., additional, Randall, C. E., additional, Bevilacqua, R. M., additional, Taha, G., additional, Thomason, L. W., additional, Irie, H., additional, Ejiri, M. K., additional, Saitoh, N., additional, Tanaka, T., additional, Terao, Y., additional, Kobayashi, H., additional, and Sasano, Y., additional

Published
2006
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33. Retrieval of ozone column content from airborne Sun photometer measurements during SOLVE II: comparison with coincident satellite and aircraft measurements

Author

Livingston, J. M., primary, Schmid, B., additional, Russell, P. B., additional, Eilers, J. A., additional, Kolyer, R. W., additional, Redemann, J., additional, Ramirez, S. R., additional, Yee, J.-H., additional, Swartz, W. H., additional, Trepte, C. R., additional, Thomason, L. W., additional, Pitts, M. C., additional, Avery, M. A., additional, Randall, C. E., additional, Lumpe, J. D., additional, Bevilacqua, R. M., additional, Bittner, M., additional, Erbertseder, T., additional, McPeters, R. D., additional, Shetter, R. E., additional, Browell, E. V., additional, Kerr, J. B., additional, and Lamb, K., additional

Published
2005
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37. Validation of POAM III ozone: Comparisons with ozonesonde and satellite data

Author

Randall, C. E., primary, Rusch, D. W., additional, Bevilacqua, R. M., additional, Hoppel, K. W., additional, Lumpe, J. D., additional, Shettle, E., additional, Thompson, E., additional, Deaver, L., additional, Zawodny, J., additional, Kyrö, E., additional, Johnson, B., additional, Kelder, H., additional, Dorokhov, V. M., additional, König‐Langlo, G., additional, and Gil, M., additional

Published
2003
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41. Trajectory hunting as an effective technique to validate multiplatform measurements: Analysis of the MLS, HALOE, SAGE‐II, ILAS, and POAM‐II data in October–November 1996

Author

Danilin, M. Y., primary, Ko, M. K. W., additional, Froidevaux, L., additional, Santee, M. L., additional, Lyjak, L. V., additional, Bevilacqua, R. M., additional, Zawodny, J. M., additional, Sasano, Y., additional, Irie, H., additional, Kondo, Y., additional, Russell, J. M., additional, Scott, C. J., additional, and Read, W. G., additional

Published
2002
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42. Chemical loss of ozone during the Arctic winter of 1999/2000: An analysis based on balloon‐borne observations

Author

Salawitch, R. J., primary, Margitan, J. J., additional, Sen, B., additional, Toon, G. C., additional, Osterman, G. B., additional, Rex, M., additional, Elkins, J. W., additional, Ray, E. A., additional, Moore, F. L., additional, Hurst, D. F., additional, Romashkin, P. A., additional, Bevilacqua, R. M., additional, Hoppel, K. W., additional, Richard, E. C., additional, and Bui, T. P., additional

Published
2002
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45. Comparison of ER‐2 aircraft and POAM III, MLS, and SAGE II satellite measurements during SOLVE using traditional correlative analysis and trajectory hunting technique

Author

Danilin, M. Y., primary, Ko, M. K. W., additional, Bevilacqua, R. M., additional, Lyjak, L. V., additional, Froidevaux, L., additional, Santee, M. L., additional, Zawodny, J. M., additional, Hoppel, K. W., additional, Richard, E. C., additional, Spackman, J. R., additional, Weinstock, E. M., additional, Herman, R. L., additional, McKinney, K. A., additional, Wennberg, P. O., additional, Eisele, F. L., additional, Stimpfle, R. M., additional, Scott, C. J., additional, Elkins, J. W., additional, and Bui, T. V., additional

Published
2002
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46. ATMOS version 3 water vapor measurements: Comparisons with observations from two ER‐2 Lyman‐α hygrometers, MkIV, HALOE, SAGE II, MAS, and MLS

Author

Michelsen, H. A., primary, Manney, G. L., additional, Irion, F. W., additional, Toon, G. C., additional, Gunson, M. R., additional, Rinsland, C. P., additional, Zander, R., additional, Mahieu, E., additional, Newchurch, M. J., additional, Purcell, P. N., additional, Remsberg, E. E., additional, Russell, J. M., additional, Pumphrey, H. C., additional, Waters, J. W., additional, Bevilacqua, R. M., additional, Kelly, K. K., additional, Hintsa, E. J., additional, Weinstock, E. M., additional, Chiou, E.‐W., additional, Chu, W. P., additional, McCormick, M. P., additional, and Webster, C. R., additional

Published
2002
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