Meteorology Studies

Derived Meteorological Product (DMP) Availability Date: 15 September 2006 Derived Meteorological Product (DMP) have been produced for many solar occultation (SO) satellite datasets, as part of an ACMAP/Aura Validation project to help facilitate validation of noncoincident measurements. DMPs have been calculated for ACE-FTS, (Atmospheric Chemistry Experiment-Fourier Transform Spectrometer), SAGE (Stratospheric Aerosol and Gas Experiment) II and III, HALOE (Halogen Occultation Experiment), and POAM (Polar Ozone and Aerosol Measurement) II and III; these can also be provided for user-defined data locations. The DMP products include temperature, potential temperature, horizontal winds, potential vorticity (PV), equivalent Latitude (EqL), vortex edge criteria, tropopause heights, and other useful quantities, derived from the UK Met Office meteorological analyses. There are also DMPs derived from GEOS-4 (NASA's Global Modeling and Assimilation Office's Goddard Earth Observing System V4.03 product) for ACE-FTS, and from NCEP/CPC (National Centers for Environmental Prediction/Climate Prediction Center) for SAGE II. A description of the DMP products is given; examples are shown using the DMPs to compare solar occultation measurements with Aura Microwave Limb Sounder (MLS) data in EqL/theta space. Visit the MLS public FTP site to retrieve these files at: ftp://mls.jpl.nasa.gov/pub/outgoing/manney/ Documentation: Poster on DMPs and anticipated validation activities from 2006 Aura Science Team Meeting Poster on DMPs presented at 2005 SOSST meeting Poster on SAGE II DMPs presented at 2004 SOSST meeting
Polar Winter Stratospheric Conditions Minimum 50~hPa (~20 km) Temperatures at high latitudes (top), and maximum 490~K (~50 hPa, ~20 km) potential vorticity (PV) gradients during the <Antarctic/Arctic winter> <YYYY>/<YYYY-YYYY>. At temperatures below about 195 K at this level in the lower stratosphere, polar stratospheric clouds can form, and lead to chlorine activation and chemical ozone loss (see "Polar Ozone Loss" page). The maximum PV gradients indicate the strength of the polar vortex; a stronger vortex means less mixing between vortex and extravortex regions, and hence less dilution of effects of chemical processing within the vortex. The grey shading gives the range of values observed in previous years, the white line the average value for previous years, and the black lines, values for the current winter. From NCEP/CPC meteorological dataset. +See current NH winter or previous SH winter
The area (expressed as a fraction of the <NH/SH>) where temperatures are low enough to form polar stratospheric clouds during the <Antarctic/Arctic> winter <YYYY>/<YYYY-YYYY>. Threshold temperature is pressure-dependent, and is calculated using the formula of Hansen and Mauersberger (1988), with standard profiles based on UARS MLS and CLAES data used for nitric acid and water values. Area is calculated from four meteorological analyses: GEOS-4 (the NASA Global Modeling and Assimilation Office's Goddard Earth Observing System Version 4.03 assimilation system), NCEP (the NCEP/CPC meteorological dataset, a combined assimilation and objective analysis product), MetO (the UK Met Office assimilated dataset), and Rean (the NCEP/NCAR 50-year Reanalysis assimilated dataset. NOTE THAT Rean DATA ARE NOT RECOMMENDED FOR STRATOSPHERIC STUDIES, e.g., Manney et al (2003, 2005)). +See current winter or previous SH winter Previous Winter Plots: SH Winter 2004 SH Winter 2005 NH Winter 2004-2005 NH Winter 2005-2006
On-Line Meteorological Daily Maps Date: 07 July 2005 The two types of maps are now available: Stratospheric potential vorticity (PV) and temperature plots, separately from GMAO and the UK Met Office Upper Troposphere / Lower Stratosphere daily maps of GPH, windspeed, tropopause, PV, cold point temperature, diabatic heating rates, 200 hPa divergence, and 200 hPa velocity potential These plots are available at: http://mls.jpl.nasa.gov/data/gallery.php

MLS-related publications concerning meteorological studies

Featured Publications

2006: papers published or in press to date

• Allen, D.R., L. Coy, S.D. Eckermann, J.P. McCormack, G.L. Manney, T.F. Hogan, and Y.-J. Kim, "NOGAPS-ALPHA Simulations of the 2002 Southern Hemisphere Major Warming," Monthly Weather Review 134, 498-518, February 2006.   reprint   one page summary
• Oikonomou, E.K., and A. O'Neill, "Evaluation of ozone and water vapor fields from the ECMWF reanalysis ERA-40 during 1991-1999 in comparison with UARS satellite and MOZAIC aircraft observations," J. Geophys. Res. 111, D14109, doi:10.1029/2004JD005341, 2006.    reprint

• Su, H., W.G. Read, J.H. Jiang, J.W. Waters, D.L. Wu, and E.J. Fetzer, "Enhanced positive water vapor feedback associated with tropical deep convection: New evidence from Aura MLS," Geophys. Res. Lett. 33, L05709, doi:10.1029/2005GL025505, 2006.    reprint

  Papers currently in review

• Gobiet, A., G. Kirchentgast, G.L. Manney, M. Borsche, C. Retscher, and G. Stiller,, "Retrieval of temperature profiles from CHAMP for climate monitoring: Intercomparison with Envisat MIPAS and GOMOS and different atmospheric analyses," Atmos. Chem. Phys. , in review.

• Li, J.-L., J.H. Jiang, D.E. Waliser, and A.M. Tompkins, "Assessing Consistency between EOS MLS and ECMWF Analyzed and Forecast Estimates of Cloud Ice," Geophys. Res. Lett., in review.    preprint    supplementary material

  2005

• Manney, G.L., D.R. Allen, K. Krueger, B. Naujokat, M.L. Santee, J.L. Sabutis, S. Pawson, R. Swinback, C.E. Randall, A.J. Simmons, and C. Long, "Diagnostic comparison of meteorological analyses during the 2002 Antarctic winter," Monthly Weather Review 133 , 1261-1278, May 2005.  reprint    one page summary
• Manney, G.L., K. Krueger, J.L. Sabutis, S.A. Sena, and S. Pawson, "The remarkable 2003-2004 winter and other recent warm winters in the Arctic stratosphere since the late 1990s," J. Geophys. Res. 110 , D04107, doi:10.1029/2004JD005367, 25 Feb 2005.   reprint   one page summary
• Waugh, D.W., "Impact of potential vorticity intrusions on subtropical upper tropospheric humidity," J. Geophys. Res. 110, D11, D11305, doi:10.1029/2004JD005664, 16 Jun 2005.    reprint

  2004

• Randel, W., P. Udelhofen, E. Fleming, M. Geller, M. Gelman, K. Hamilton, D. Karoly, D. Ortland, S.Pawson, R. Swinbank, F. Wu, A. Simmons, and D. Wu, "The SPARC Intercomparison of Middle-Atmosphere Climatologies," J. Climate 17, 986-1003, 2004.   reprint   MLS one page summary

2003

• Manney, G.L., J.L. Sabutis, S. Pawson, M.L. Santee, B. Naujokat, R. Swinbank, M.E. Gelman, and W. Ebisuzaki, "Lower stratospheric temperature differences between meteorological analyses in two cold Arctic winters and their impact on polar processing studies,"J. Geophys. Res. 108, doi:10.1029/2001JD001149, January 2003. reprint    one page summary

  2002

• Manney, G.L., W.A. Lahoz, J.L. Sabutis, A. O'Neill, and L. Steenman-Clark, "Simulations of fall and early winter in the stratosphere," Q.J. Roy. Meteorol. Soc. 128, 2205-2237, 2002.    reprint    one page summary

  2001

• Manney, G.L., J.L. Sabutis, and R. Swinbank, "A unique stratospheric warming event in November 2000," Geophys. Res. Lett. 28, 2629-2632, 2001.    reprint

  2000

• Sabutis, J. L., and G. L. Manney, "Wave propagation in the 1999-2000 Arctic early winter stratosphere," Geophys. Res. Lett., 27, 3205-3208, 2000.

  1999

• Manney, G. L., W. A. Lahoz, R. Swinbank, A. O'Neill, P. M. Connew, and R. W. Zurek, "Simulation of the December 1998 stratospheric major warming," Geophys. Res. Lett., 26, 2733-2736, 1999.

  1996

• Manney, G. L., R. Swinbank, S. Massie, M. E. Gelman, A. J. Miller, R. Nagatani, A. O'Neill, and R. W. Zurek, "Comparison of UK Meteorological Office and US National Meteorological Center stratospheric analyses during northern and southern winter," J. Geophys. Res., 101, 10,311-10,334, 1996.

• Manney, G.L., M.L. Santee, L. Froidevaux, J.W. Waters, and W. Zurek, "Polar vortex conditions during the 1995-96 Arctic winter: Meteorology and MLS ozone," Geophys. Res. Lett. 23, 3203-3206, 1996.   reprint

• Singh, U.N., P. Keckhut, T.J. McGee, M.R. Gross, A. Hauchecorne, E.F. Fishbein, J.W. Waters, J.C. Gille, A.E. Roche, and J.M. Russell III, "Stratospheric temperature measurements by two collocated NDSC lidar during UARS validation campaign," J. Geophys. Res. 101, 10,287-10,297, 1996.   reprint

• Zurek, R. W., G. L. Manney, A. J. Miller, M. E. Gelman, and R. Nagatani, "Interannual variability of the north polar vortex in the lower stratosphere during the UARS mission," Geophys. Res. Lett., 23, 289-292, 1996.

  1994

• Manney, G. L., R. W. Zurek, A. O'Neill, and R. Swinbank, "On the motion of air through the stratospheric polar vortex," J. Atmos. Sci., 51, 2973-2994, 1994.

• Manney, G. L., R. W. Zurek, M. E. Gelman, A. J. Miller, and R. Nagatani, "The anomalous Arctic lower stratospheric polar vortex of 1992-1993," Geophys. Res. Lett., 21, 2405-2408, 1994.

• Manney, G. L., R. W. Zurek, A. O'Neill, R. Swinbank, J. B. Kumer, J. L. Mergenthaler, and A. E. Roche, "Stratospheric Warmings during February and March 1993," Geophys. Res. Lett., 21, 813-816, 1994.

  1993

• Manney, G. L., and R. W. Zurek, "Interhemispheric comparison of the development of the stratospheric polar vortex during fall: A 3-dimensional perspective for 1991-1992," Geophys. Res. Lett., 20, 1275-1278, 1993.