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Quantifying gravity wave momentum fluxes with mesosphere temperature mappers and correlative instrumentation

An Advanced Mesosphere Temperature Mapper and other instruments at the Arctic Lidar Observatory for Middle Atmosphere Research in Norway (69.3°N) and at Logan and Bear Lake Observatory in Utah (42°N) are used to demonstrate a...

Atmospheric Gravity Waves
Atmospheric predictability from sub-seasonal to seasonal time scales and climate variability are both influenced critically by gravity waves (GW). The quality of regional and global numerical models relies on thorough...
Joint analysis of gravitational-wave and electromagnetic data of mergers

On 2017 August 17, Advanced LIGO and Virgo observed GW170817, the first gravitational-wave (GW) signal from a binary neutron star merger. It was followed by a short-duration gamma-ray burst, GRB 170817A, and by a non-thermal...

Joint analysis of gravitational-wave and electromagnetic data of mergers

On 2017 August 17, Advanced LIGO and Virgo observed GW170817, the first gravitational-wave (GW) signal from a binary neutron star merger. It was followed by a short-duration gamma-ray burst, GRB 170817A, and by a non-thermal...

Analysis of strong ionospheric scintillation events measured by means of GPS signals at low latitudes during disturbed conditions
Biagio Forte
Aug 01, 2012
Drifting structures characterized by inhomogeneities in the spatial electron density distribution at ionospheric heights cause the scintillation of radio waves propagating through. The fractional electron density fluctuations...
Sensitivity of Mountain Wave Drag Estimates on Separation Methods and Proposed Improvements

Internal gravity waves (GWs) are ubiquitous in the atmosphere, making significant contributions to the mesoscale motions. Since the majority of their spectrum is unresolved in global circulation models, their effects need to...

Quantifying gravity wave momentum fluxes with mesosphere temperature mappers and correlative instrumentation

An Advanced Mesosphere Temperature Mapper and other instruments at the Arctic Lidar Observatory for Middle Atmosphere Research in Norway (69.3°N) and at Logan and Bear Lake Observatory in Utah (42°N) are used to demonstrate a...

Atmospheric Gravity Waves
Atmospheric predictability from sub-seasonal to seasonal time scales and climate variability are both influenced critically by gravity waves (GW). The quality of regional and global numerical models relies on thorough...
Refractive scattering evidence from multifrequency scintillation spectra observed at auroral latitudes
Biagio Forte
Apr 01, 2008
During October 2003 major geomagnetic storm, intensity scintillations on radio
signals at 150 MHz and 400 MHz transmitted coherently from Tsykada beacon satellites have been observed. Through the analysis of intensity...
Sensitivity of Mountain Wave Drag Estimates on Separation Methods and Proposed Improvements

Internal gravity waves (GWs) are ubiquitous in the atmosphere, making significant contributions to the mesoscale motions. Since the majority of their spectrum is unresolved in global circulation models, their effects need to...

Stratospheric Gravity Waves as a Proxy for Hurricane Intensification

We conducted simulations with a 4-km resolution for Hurricane Joaquin in 2015 using the weather research and forecast (WRF) model. The model data are used to study stratospheric gravity waves (GWs) generated by the hurricane...

Stratospheric Gravity Waves as a Proxy for Hurricane Intensification

We conducted simulations with a 4-km resolution for Hurricane Joaquin in 2015 using the weather research and forecast (WRF) model. The model data are used to study stratospheric gravity waves (GWs) generated by the hurricane...

Analysis of strong ionospheric scintillation events measured by means of GPS signals at low latitudes during disturbed conditions
Biagio Forte
Aug 01, 2012
Drifting structures characterized by inhomogeneities in the spatial electron density distribution at ionospheric heights cause the scintillation of radio waves propagating through. The fractional electron density fluctuations...
On the relationship between the geometrical control of scintillation indices and the data detrending problems observed at high latitudes
Biagio Forte
Dec 01, 2007
The experimental estimate of radio waves scintillation, caused by plasma density irregularities in the ionosphere,
is usually attempted by means of scintillation indices which are essentially standard deviations of...
Maximum tension
JD Barrow, GW Gibbons
Feb 17, 2015
We discuss various examples and ramifications of the conjecture that there exists a maximum force (or tension) in general relativistic systems. We contrast this situation with that in Newtonian gravity, where no maximum force...
Analysis of the PLL phase error in presence of simulated ionospheric scintillation events
Biagio Forte
Jun 01, 2012
The functioning of standard phase locked loops (PLL), including those used to track radio signals from Global Navigation Satellite Systems (GNSS), is based on a linear approximation which holds in presence of small phase errors....
Prospects for policy advances in science and technology in the Gulf Arab States
Science, technology, engineering and mathematics (STEM) policies in the Gulf Arab States are as diverse as the individual economies and political processes that characterize its member states. During the past decade, a number of...
Why α s cannot be determined from hadronic processes without simultaneously determining the parton distributions
Abstract: We show that any determination of the strong coupling αs from a process which depends on parton distributions, such as hadronic processes or deep-inelastic scattering, generally does not lead to a correct result unless...
Analysis of the PLL phase error in presence of simulated ionospheric scintillation events
Biagio Forte
Jun 01, 2012
The functioning of standard phase locked loops (PLL), including those used to track radio signals from Global Navigation Satellite Systems (GNSS), is based on a linear approximation which holds in presence of small phase errors....
On the relationship between the geometrical control of scintillation indices and the data detrending problems observed at high latitudes
Biagio Forte
Dec 01, 2007
The experimental estimate of radio waves scintillation, caused by plasma density irregularities in the ionosphere,
is usually attempted by means of scintillation indices which are essentially standard deviations of...
Refractive scattering evidence from multifrequency scintillation spectra observed at auroral latitudes
Biagio Forte
Apr 01, 2008
During October 2003 major geomagnetic storm, intensity scintillations on radio
signals at 150 MHz and 400 MHz transmitted coherently from Tsykada beacon satellites have been observed. Through the analysis of intensity...
Setting up a rapid diagnostic clinic for patients with vague symptoms of cancer
Background
The study sought to evaluate the impact of a Rapid Diagnostic Clinic (RDC) service designed to improve general practitioner (GP) referral processes for patients who do not meet existing referral criteria yet...

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