Global tropopause height trends estimated from GPS radio occultation data
نویسندگان
چکیده
منابع مشابه
Effect of gravity waves on the tropopause temperature, height and water vapor in Tibet from COSMIC GPS Radio Occultation observations
The tropopause plays an important role in climate change, particularly in Tibet with complex topography and climate change system. In this paper, the temperature and height of the Cold Point Tropopause (CPT) in Tibet are obtained and investigated from COSMIC (Constellation Observing System for Meteorology, Ionosphere and Climate) GPS Radio Occultation (RO) during June 2006–Feb 2014, which are c...
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We provide an assessment of the backpropagation (BP) method for processing GPS radio occultations using simulations as well as recent data from CHAMP and SAC-C. It is found that BP gives improved retrievals over the standard Doppler technique, even when multipath ambiguities are not completely removed. In addition, by being an amplitude-weighted algorithm, BP is robust in the presence of receiv...
متن کاملGPS radio occultation with CHAMP
GPS radio occultation with CHAMP: monitoring of climate change parameters T. Schmidt, S. Heise, J. Wickert, G. Beyerle, and C. Reigber GeoForschungsZentrum Potsdam, Department 1: Geodesy and Remote Sensing, Potsdam, Germany Received: 20 September 2004 – Accepted: 27 October 2004 – Published: 1 December 2004 Correspondence to: T. Schmidt ([email protected]) © 2004 Author(s). This work is l...
متن کاملPotential Impact of COSMIC GPS Radio Occultation Data on Regional
A major challenge for operational numerical weather prediction over the Antarctic and Southern Ocean is the lack of traditional meteorological observations. This increases uncertainty in the model initial condition and results in inferior forecast skills as compared with numerical weather prediction in mid-latitudes over the Northern Hemisphere. With the lack of traditional observations over th...
متن کاملDetermining the tropopause height from gridded data
[1] A method is presented to determine tropopause height from gridded temperature data with coarse vertical resolution. The algorithm uses a thermal definition of the tropopause, which is based on the concept of a ‘‘threshold lapse-rate’’. Interpolation is performed to identify the pressure at which this threshold is reached and maintained for a prescribed vertical distance. The method is verif...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2008
ISSN: 0094-8276
DOI: 10.1029/2008gl034012