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  • This is a copy of The Berlin Stratospheric Data Series provided to the BADC by K. Labitzke and her collaborators (2002) as a CD from the Meteorological Institute, Free University Berlin. This data set contains temperature and geopotential height data on the 100, 50, 30, 10 mb pressure surfaces produced at the Meteorological Institute, Free University of Berlin, from radiosonde data and rocket observations. This data series also contains summer, winter and annual trends and variability of the data, climatological monthly mean temperature and geopotential height at 30 mb, and intercomparisons with other data series. There are also sections on the quasi-biennial oscillation (QBO) and the global signal of the 11-year sunspot cycle in the stratosphere.

  • The Improved Stratospheric and Mesospheric Sounder (ISAMS) measured vertical profiles of temperature and a number of atmospheric constituents. An instrument on board UARS (Upper Atmosphere Research Satellite) measured global stratospheric and mesospheric temperature, CO, H2O, CH4, O3, HNO3, N2O5, NO2, N2O and aerosol extinction. Gridded, global measurements between 80S and 80N, October 1991 - July 1992. Data include level 2 and 3A product (gridded in time or latitude along the satellite track). Data are version 9/10 for Level 3 and version 8 for Level 2. ISAMS data is public.

  • The European Arctic Stratospheric Ozone Experiment is a European Commission (EC) measurement campaign undertaken in the Northern Hemisphere winter of 1991-92 to study ozone chemistry and dynamics. This dataset contains measurements of HNO3, CLO, HCL, air temperature and air pressure during the Arctic winter period of 1991/1992. The experiment provides spectrally resolved molecular line profiles that allow the retrieval of vertical volume-mixing-ratio (VMR) distributions. Altitude information can be extracted from the pressure broadening of the emission feature that dominates the line shape at altitudes approximately below 60 km.

  • The Halogen Occultation Experiment (HALOE) is one of 10 instruments aboard the Upper Research Satellite (UARS), which used solar occultation technique to measure global stratospheric and mesospheric profiles of pressure, temperature, O3, HCl, HF, CH4, H2O, NO, NO2 and aerosol extinction. The dataset contains approximately 30 sunset and sunrise profiles per day between 80S and 80N from October 1991 to 1994. Data are level 2 products i.e. profiles at actual measurement location and not interpolated in horizontal. Data are version 19.

  • The European Arctic Stratospheric Ozone Experiment is a European Commission (EC) measurement campaign undertaken in the Northern Hemisphere winter of 1991-92 to study ozone chemistry and dynamics. This dataset contains vertical column measurements of NO2 and O3.

  • The European Arctic Stratospheric Ozone Experiment is a European Commission (EC) measurement campaign undertaken in the Northern Hemisphere winter of 1991-92 to study ozone chemistry and dynamics. This dataset contains vertical column measurements of NO2 and O3.

  • The European Arctic Stratospheric Ozone Experiment is a European Commission (EC) measurement campaign undertaken in the Northern Hemisphere winter of 1991-92 to study ozone chemistry and dynamics. This dataset contains vertical column measurements of NO2, O4, H2O and O3.

  • The Halogen Occultation Experiment (HALOE) is one of 10 instruments aboard the Upper Research Satellite (UARS). The HALOE instrument was built by an instrument team based at NASA Langley and launched on the UARS on 12th September 1991. Data collection began on 11th October 1991 until 21st November 2005. The Principal Investigator (PI) is Dr James M. Russell III. The HALOE experiment uses solar occultation to measure vertical profiles of ozone (O3), hydrogen chloride (HCl), Hydrogen Fluoride (HF), methane (CH4), water vapour (H2O), nitric oxide (NO), nitrogen dioxide (NO2), aerosol extinction, and temperature versus pressure with an instantaneous vertical field of view of 1.6 km at the Earth limb. The instrument achieves near-global coverage with measurements sweeping between high latitudes in one hemisphere and high latitudes in the other over a period of between 2 and 6 weeks. The latitude range covered by the instrument varies over the course of the year between 80°S and 80°N. The maximum northerly and southerly latitudes occur in spring and autumn in the few weeks either side of the equinoxes. The range of altitude of the measurements depends on the channel being used, but measurements cover the stratosphere and lower mesosphere and, in the case of the nitric oxide channel, extend into the lower thermosphere. HALOE studies the dynamics of polar and other atmospheric regions using the tracers, HF, CH4 and H2O. Studying the trends in HCl and HF will help distinguish the relative importance of anthropogenic versus natural chlorine sources and analyse in detail the development and recovery of the Antarctic ozone hole. Additional studies are intended to identify and assess stratosphere-troposphere exchange. The BADC holds HALOE data at level 2 (uninterpolated profiles at measurement locations), version 19 for the period 11th Ocotber 1991 to 21st November 2005. The BADC also holds the HALOE level 3A version 19 data spanning the time period from 11th October 1991 through 21st December 2000. HALOE L3 data is public. Updates through to September 24, 2001 are available directly from GSFC NASA. The HALOE level 3A data are vertical profiles of methane (CH4), hydrogen chloride (HCl), hydrogen fluoride (HF), nitric oxide (NO), nitrogen dioxide (NO2), water vapor (H2O), ozone (O3), temperature (TEMP), and aerosol extinction (AEXTCH4, AEXTHCL, AEXTHF and AEXTNO), interpolated onto a standard set of vertical levels evenly spaced in pressure, and onto standard times (level 3AT) and standard latitudes (level 3AL). The vertical scan range is from about 10 to 65 km, and the vertical resolution is approximately 2.5 km between pressure levels.

  • The Halogen Occultation Experiment (HALOE) is one of 10 instruments aboard the Upper Research Satellite (UARS), which used solar occultation technique to measure global stratospheric and mesospheric profiles of pressure, temperature, O3, HCl, HF, CH4, H2O, NO, NO2 and aerosol extinction. The dataset contains approximately 30 sunset and sunrise profiles per day between 80S and 80N from October 1991 to 1994. Data are level 2 products i.e. profiles at actual measurement location and not interpolated in horizontal. Data are version 19.

  • Validation data for the IASI (Infrared Atmospheric Sounding Interferometer) satellite instrument. IASI was a moderate resolution (0.25cm^-1) Fourier Transform spectrometer which was scheduled for flight in 2002 on the European METOP satellite. IASI delivered vertical profiles of temperature and humidity data with a resolution of 1km. VIRTEM was an EU project to validate the instrumentation and retrieval methods to be used on IASI.This dataset contains radiosonde, air pressure and air temperature measurements from the C-130 Met Office Hercules aircraft.