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Mostrando ítems 31-40 de 431
Tropospheric and stratospheric momentum flux measurements from radar wind data collected at Jicamarca
(Elsevier, 2004-02-01)
Tropospheric and stratospheric radar wind data obtained at Jicamarca, Perú (11.95S, 76.87°W) during August 17–26, 1998 have been used to estimate the momentum flux of short-period wind fluctuations together with the ...
Mesospheric studies using the Jicamarca incoherent-scatter radar
(Elsevier, 1974-07)
Results from a VHF backscattering experiment using the Jicamarca incoherent-scatter radar are described for a mesospheric height. The echo power during the day varies intermittently and sporadically over a range of almost ...
Intercomparison of radar meteor velocity corrections using different ionization coefficients
(American Geophysical Union, 2017-05-15)
Sensitive long‐wavelength radar observations of absolute velocity never previously published from Jicamarca are brought to bear on the long‐standing problem of radar detection of slow‐moving meteors. Attention is devoted ...
Radar meteor studies at the Jicamarca Radio Observatory: what has been done and what needs to be done
(Instituto Geofísico del Perú, 2010)
Diapositivas presentadas en la conferencia organizada por la Stanford University, in June 30, 2010).
Digital filtering, calibration and correlation analysis of radar-echoes from the tropo and stratosphere
(Instituto Geofísico del Perú, Radio Observatorio de Jicamarca, 1978)
VHF-radars have been successfully used for remote sensing of the lower and middle atmosphere. The received radar-echoes are digitized and these raw data are processes in several sequential steps. By digitally filtering the ...
High-altitude-resolution observation of the upper stratosphere and lower mesosphere using Jicamarca VHF radar
(1991-08)
The high-power VHF radar technique is a powerful tool to lnvestigate winds and turbulence in the middle atmosphere. However, an entire wind or power profile from the upper troposphere to the lower thermosphere. (10-100 km) ...
Nuevo sistema de detección coherente del radar de Jicamarca
(Universidad Nacional de Ingeniería, 2023)
A statistical comparison of horizontal winds obtained by a variety of spaced antenna techniques using the Jicamarca VHF radar
(American Geophysical Union, 1998-11)
We have used the Jicamarca radar system to measure horizontal winds by a variety of time domain and frequency domain spaced antenna techniques. Horizontal wind comparisons for two orthogonal components are carried out in ...
Development of the new Jicamarca Acquisition Radar System: JARS
(Instituto Geofísico del Perú, 2010)
The need for high-precision radar measurements of the upper atmosphere has motivated the development of new acquisition systems at the Jicamarca Radio Observatory (JRO). Digital receivers have replaced the old analog ...
Incoherent scatter radar plasma density measurements at Jicamarca using a transverse-mode differential-phase method
(American Geophysical Union, 2003)
The 50 MHz Jicamarca incoherent scatter radar can be used to make very high precision F-region plasma drift measurements with less than a m/s uncertainty and 5 min/ 15 km time/height resolutions. In such measurements the ...