Observing the moist troposphere with radio occultation signals from COSMIC
نویسندگان
چکیده
منابع مشابه
Observing the moist troposphere with radio occultation signals from COSMIC
[1] New approaches for observing the moist troposphere using radio occultation (RO) signals transformed to impact parameter representation by radio-holographic (RH) methods are presented. Large changes in the RH bending angle are used as indicators of significant vertical refractivity gradients that often occur on top of the atmospheric boundary layer (ABL), convective cloud layers such as the ...
متن کاملEffect of superrefraction on inversions of radio occultation signals in the lower troposphere
[1] Radio occultation remote sensing of the Earth’s atmosphere by use of GPS encounters problems in the moist lower troposphere (planetary boundary layer). The negative errors in retrieved refractivity (bias) may not be explained by the horizontal inhomogeneity in refractivity. In part, these errors can be attributed to the use of signal tracking algorithms inappropriate for the complicated str...
متن کاملGPS profiling of the lower troposphere from space: Inversion and demodulation of the open-loop radio occultation signals
[1] Global Positioning System (GPS) radio occultation (RO) is a space-borne remote sensing technique providing accurate, all-weather, high vertical resolution atmospheric parameters, including pressure, temperature and humidity in the troposphere and stratosphere. In the moist lower troposphere (LT) RO encounters known problem related to the phase-locked loop (PLL) tracking technique applied in...
متن کاملComparison of three retrievals of COSMIC GPS radio occultation results in the tropical upper troposphere and lower stratosphere
Combining geometrical optics (GO) and wave optics (WO), the COSMIC data analysis and archive center (CDAAC) retrieved two sets of dry atmosphere temperatures (T) from COSMIC GPS radio occultation (GPS-RO), which are called atmPrf2010 and atmPrf2013. In atmPrf2010, the sewing height between WO and GO varies between 10 and 20 km, but is fixed at 20 km for atmPrf2013. The height resolution of the ...
متن کاملRadio-holographic analysis of Microlab-1 radio occultation data in the lower troposphere
[1] The interpretation of radio occultation data in the lower troposphere is a complicated problem due to strong multipath effects. This problem can be solved on the basis of the wave optics. We analyze Microlab-1 radio occultation using two radio-holographic approaches: the radio-optics method, which employs the analysis of the local spatial spectra of the registered wave field, and the canoni...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2007
ISSN: 0094-8276
DOI: 10.1029/2007gl030458