66 research outputs found
Independent review of financial support for students in Scotland : international comparator study
The future is coming : ready or not? : delivering a successful 21st century skills system for Northern Ireland and Scotland
Atmospheric Trace Molecule Spectroscopy (ATMOS) experiment version 3 data retrievals
Version 3 of the Atmospheric Trace Molecule Spectroscopy (ATMOS) experiment data set for some 30 trace and minor gas profiles is available. From the IR solar-absorption spectra measured during four Space Shuttle missions (in 1985, 1992, 1993, and 1994), profiles from more than 350 occultations were retrieved from the upper troposphere to the lower mesosphere. Previous results were unreliable for tropospheric retrievals, but with a new global-fitting algorithm profiles are reliably returned down to altitudes as low as 6.5 km (clouds permitting) and include notably improved retrievals of H2 O, CO, and other species. Results for stratospheric water are more consistent across the ATMOS spectral filters and do not indicate a net consumption of H2 in the upper stratosphere. A new sulfuric-acid aerosol product is described. An overview of ATMOS Version 3 processing is presented with a discussion of estimated uncertainties. Differences between these Version 3 and previously reported Version 2 ATMOS results are discussed. Retrievals are available at http: /atmos.jpl.nasa.gov /atmos
Dehydration in the tropical tropopause layer: Implications from the UARS Microwave Limb Sounder
Sequential assimilation of stratospheric chemical observations in a three-dimensional model
Validation of hydrogen fluoride measurements made by the Halogen Occultation Experiment from the UARS platform
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