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1. DEOS: Current velocities of the Gulf Stream
- www.deos.tudelft.nl
- Current velocities of the Gulf Stream.
- Since 21 December 2004 the velocity maps show the absolute in stead of relative velocities. This means that the velocities now include the mean Gulf Stream current, based on the CMDT-RIO04 dynamic topography solution by Rio and Hernandez. ...
- This page presents four maps of current velocities of the Gulf Stream in the vicinity of the East coast of North-America. Velocities are represented in meters per second. ...
- Gulf Stream velocities one week ago: Friday 11 March 2005 .
- Gulf Stream velocities two weeks ago: Friday 4 March 2005 .
- Gulf Stream velocities three weeks ago: Friday 25 February 2005 .
- Gulf Stream velocities four weeks ago: Friday 18 February 2005 Additional resources.
- Animations of the Gulf Stream velocities are here. ...
- DEOS | Gulf Stream velocities | Animations | Related links | Monitoring El Niño Maintenance:.
2. ASCL: RVSAO: Digital redshifts and radial velocities
- ascl.net
- net | RVSAO: Digital redshifts and radial velocities .
- Abstract: RVSAO is a set of programs to obtain redshifts and radial velocities from digital spectra. ... bcvcorr corrects velocities for the observatory motion on the spinning Earth as well as motion of the Earth around the Earth-Moon barycenter and the motion of that barycenter around the Solar System barycenter. ...
- Subject headings: instrumentation: spectrographs, methods: data analysis, techniques: radial velocities, techniques: spectroscopic .
3. Along or across front ocean survey strategy? The estimation of quasi-geostrophic vertical velocities and temperature fluxes
- www.agu.org
- Along or across front ocean survey strategy? The estimation of quasi-geostrophic vertical velocities and temperature fluxes.
- The cruise design based on the optimal reconstruction of the density fields does however not imply that derived variables like quasi-geostrophic (QG) vertical velocities and temperature fluxes also exhibit minimal associated errors. Here we present results of optimized sampling strategies for diagnostic QG vertical velocities (wQG) and temperature fluxes (θQG) derived from the omega equation. Results are illustrated in the same framework, for the Iceland-Faroes oceanic frontal area and for a control model and reveal that at these spatio-temporal scales, the unusual AL may also provide better estimations of vertical velocities and temperature fluxes compared to the classic AC, especially when the front is sufficiently developed. ...
- Beckers (2003), Along or across front ocean survey strategy? The estimation of quasi-geostrophic vertical velocities and temperature fluxes, Geophys. ...
4. Dainis Dravins (Lund Observatory)
- www.astro.lu.se
- ASTROMETRIC VELOCITIES.
- This allows to identify systematic differences to spectroscopic values for stars of different type, and to calibrate wavelength displacements of complex spectra in terms of true stellar velocities. ...
- Although the theoretical possibility of thus deducing radial velocities was realized long ago, only Hipparcos space astrometry reached an accuracy level permitting a meaningful search for differences to spectroscopic velocities. ...
- Madsen: Astrometric Radial Velocities. ...
- Moving clusters, whose stars are grouped around the same average velocity vector, offer a special possibility to determine astrometric radial velocities. ...
- Figure: The moving-cluster method for determining astrometric radial velocities. ...
- Holmberg, Astrometric Radial Velocities from Hipparcos, in Proc. ...
- In essence, this inverts the classical problem of determining the cluster distance from proper motions and radial velocities, which (due to geometric projection effects) change across the angle subtended by the cluster. ... Dravins: Astrometric Radial Velocities. ... Maximum-Likelihood Estimation of Radial Velocities in Moving Clusters, A&A 356, 1119, 2000). ...
- The application of Hipparcos data to the Ursa Major, Hyades, Coma Berenices, Pleiades, and Praesepe clusters, and for the Scorpius-Centaurus, Alpha Persei, and 'HIP 98321' associations has given astrometric radial velocities for more than 1,000 stars. ...
- Figure: Map of the full sky, showing those stars in clusters and associations, whose radial velocities were astrometrically determined from Hipparcos data. ...
- Lindegren: Astrometric Radial Velocities. ... Astrometric versus spectroscopic velocities .
- Differences between astrometric and spectroscopic velocities permit to better understand physical processes on stellar surfaces (convective lineshifts); stellar interior structure (gravitational redshifts); and to understand which spectral features are the best sensors for the true stellar center-of-mass motion and/or its variations, e. ...
- Figure: Systematic differences between spectroscopic radial velocities, and true stellar motions. The plot shows the differences between spectroscopic velocities in the Hyades (mainly from Gunn et al. ...
5. Sheet-flow Velocities and Factors Affecting Sheet-flow Behavior of Importance to Restoration of the Florida Everglades
- pubs.usgs.gov
- Sheet-flow Velocities and Factors Affecting Sheet-flow Behavior of Importance to Restoration of the Florida Everglades .
- These flow data, documented in Riscassi and Schaffranek (2002, 2003, and 2004), define the range of flow velocities in a variety of vegetative communities and are yielding insight into factors that influence the sheet-flow regime. ...
- Over the course of the study, flow velocities, water and air temperatures, and (or) conductivities were measured at five sites with different vegetative properties. ... At four sites (SH1, GS-203, GS-33, and GS-36), flow velocities were measured at a fixed elevation in the water column using acoustic Doppler velocity (ADV) meters. ...
- Photographs of vegetation at the four sites where flow velocities were measured are shown in figure 2. ...
- Hydrograph of water depths and bihourly flow velocities plotted as vectors at site GS-203. ... Negative velocities indicate southerly flow. ...
- ADV data collected at four sites indicate a range of sheet-flow velocities in typical vegetative communities within ENP. ... Ninety percent of all daily mean flow velocities were between 0. ... Mean flow velocities were 1. ... These mean flow velocities, although representative of sheet-flow conditions in similarly vegetated areas within ENP, should not be assumed to be typical of flow in compartmentalized regions of the Everglades, such as Water Conservation Areas (WCA).
- Implications are that when water levels are high, regional factors drive flow more uniformly; however, as water levels fall, flow velocities decrease, momentum is reduced, and the flow becomes more susceptible to local forcing mechanisms, such as microtopography and vegetative properties. ... Flow velocities greater than about 0. 5 cm/s are more consistent in direction than flow at slower velocities. The standard deviation in flow direction of velocities greater than 0. 5 cm/s is less than a third of the standard deviation of flow velocities less than 0. ... Near-convergence of flow velocities to a constant direction at faster speeds is clearly evident in figure 5. ... It is likely that flow velocities and sheet-flow conditions in WCA of the Everglades behave similarly to the slow (< 0. ...
6. Interpreting Doppler Radar Velocities: straight line winds and rotation
- ww2010.atmos.uiuc.edu
- Interpreting Doppler Radar Velocities straight line winds and rotation .
- However, to the left and right of the line, a sharp velocity couplet appears with strong outbound velocities just to the right and strong inbound velocities just to the left. This is the classic signature of rotation with strong inbound and outbound velocities flanking the beam axis. ...
- The image above shows the Doppler radial velocities associated with an idealized downburst. ... Note the strong velocity couplet, with the zero line perpendicular to the beam axis and strong inbound and outbound velocities along the beam axis. ...
7. Wit Busza: Colliding Nuclei at Ultra-relativistic Velocities
- insti.physics.sunysb.edu
- Colliding Nuclei at Ultra-relativistic Velocities.
8. Lorentz Transformations and the Addition of Velocities
- theory.uwinnipeg.ca
- Lorentz Transformations and the Addition of Velocities .
- 1 at high high relative velocities. ...
- First, a cursory inspection will show that for low velocities, they are nearly identical to the Galilean transformation laws. ... This correspondence with the Galilean transformation at low velocities had to be true for Special Relativity to be consistent with our everyday experience. ...
- 9 is that they will allow us to deduce the expression for the addition of velocities in special relativity. We will do this in the same way that we derived the simple addition of velocities in the case of Galilean transformations. ... This immediately gives us the relationship between the velocities u'and u: .
- It differs from the common sense Galilean transformation law only by the second term in the denominator, but this extra term makes a world of difference for high relative velocities. ... 3 for the addition of velocities. ...
9. Bibliography of Stellar Radial Velocities
- www.asc.rssi.ru
- III/4 Bibliography of Stellar Radial Velocities (Abt+ 1972).
- Bibliography of Stellar Radial Velocities.
- The data file contains a bibliography of 44,000 references for radial velocities of about 25,000 stars. The individual volumes listed in Table 1 of the Introduction were surveyed for published radial velocities. The authors estimate that 99 percent of stellar radial velocities published by June 1970 are contained in the surveyed volumes. ...
- the velocities were derived from emission lines.
- 1972, Bibliography of Stellar Radial Velocities. ...
10. Antidiffusive Velocities for Multipass Donor Cell Advection
- epubs.siam.org
- Antidiffusive Velocities for Multipass Donor Cell Advection.
- Antidiffusive Velocities for Multipass Donor Cell Advection: SIAM Journal on Scientific Computing Vol. ... We discuss the implementation of our new antidiffusive velocities and provide some examples of applications, including a third-order accurate scheme. ...
11. Flame velocities of propane- and ethylene-oxygen-nitrogen mixtures
- naca.larc.nasa.gov
- Flame velocities of propane- and ethylene-oxygen-nitrogen mixtures .
- Laminar flame velocities of propane and ethylene with oxygen-nitrogen mixtures containing 0. ...
12. Chemical Sciences: Kinetic-Molecular Theory Explains the Gas Laws: Velocities of Molecules, Effusion, and Diffusion
- www.psigate.ac.uk
- Velocities of Molecules.
- The root-mean-square velocity, like the actual distribution of velocities embodied in the Maxwell law, is a function only of the absolute temperature. ...
- Those relative velocities range between zero for two molecules moving in the same direction and 2v(rms) for a head-on collision. ...
- Root-mean-square velocities of gas molecules are sometimes directly useful, but the comparison of velocities explains the results of, and is useful in, studies of effusion of molecules through a small hole in a container or diffusion of molecules through porous barriers. ...
- The ratio of root-mean-square velocities is also the ratio of the rates of effusion, the process by which gases escape from containers through small holes, and the ratio of the rates of diffusion of gases. ...
- The ratio of root-mean-square velocities of 238UF6 and 235UF6 can be calculated as follows. ... 011513 and the ratio of root-mean-square velocities is 1. ...
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