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Showing 1 to 20 of 39 for “"precipitable"”.
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The estimation of precipitable water vapour from GPS measurements in South Africa
… it is possible to estimate the amount of precipitable water vapour (PWV) in the atmosphere. The application of the GPS data for the estimation of PWV in the atmosphere is not a new concept and has been described in numerous publications and reports since the early 1990's (Bevis et al., …
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Using total precipitable water anomaly as a forecast aid for heavy precipitation events
… data-denied regions. The hypothesis that total precipitable water anomaly (TPWA) will be positive and increasing preceding heavy precipitation events is tested in order to establish an understanding of TPWA evolution. Results are then used to create a precipitation forecast aid. The operational, …
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Developing a Multi-Band GNSS Remote Sensing Station To Measure Precipitable Water Vapor for Flash Flood Nowcasting
… offers an established alternative for measuring precipitable water vapor and is currently integrated into several numerical weather models. Recent research demonstrates that commercial-grade GNSS receivers can produce tropospheric products comparable to those from geodetic-grade equipment. The …
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Determination of the suitability of MT Gamsberg in Namibia for millimetre wave stronomy by measurements of the precipitable water vapour
Precipitable Water Vapour (PWV) is the amount of water vapour in the atmospheric column above a location equivalent to the amount of liquid precipitation that would result if all the water vapour in the column was condensed. Water vapour is the main source of opacity in the Earth’s atmosphere at …
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Kytoon observations of the Lake Mead boundary layer
… find boundary layer characteristics of height, precipitable water content, and precipitable water content residence time. In addition, the boundary layer precipitable water content was compared to tributary inflows in an approximated Lake Mead water compariSon The kytoon data was unique and …
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The stimulation or inhibition of growth and acid precipitable material production of Vibrio Fetus by Kreb's cycle intermediates, fatty acids, amines, and miscellaneous compounds
… on the growth and the production of acid precipitable material by seven strains of vibrio fetus was determined. The test compounds were Krebs cycle intermediates, lactate, pyruvate, fatty acid, amines, surface active agents, aminobutyrate, hydroxybutyrate, glutathione, asparagine, …
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Estudio sobre la síntesis de proteínas y efecto de hormonas en oocitos de xenopus laevis
… de aminoácido radiactivo externo al material precipitable con acido
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Protein preservation and rumen degradability of ensiled forage, previously treated with microwave or steam heat, formic acid, or anhydrous ammonia
… steamed alfalfa had greater NDIN and recovery of precipitable N than controls, formic acid, or ammonia treated silage. There was no difference in precipitable N between formic acid and ammonia treatments. Silage of steam treatment had lower pH than wilted or direct-cut controls, and additives to …
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Moisture transport associated with the summertime North American monsoon.
… top temperature (CCT), wind, specific humidity, precipitable water (PW), convective indices, moisture flux, and parcel trajectories are all examined. The ECMWF analyses indicate that transports of water vapor by the time-mean flow dominate the transports by the transient eddies. Climatologically, …
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Precipitation Recycling as a Mechanism for Ecoclimatological Stability Through Local and Non-Local Interactions
… in not driven by changes in evapotranspiration. Precipitable water, sensible heat and moisture fluxes are the main drivers of recycling variability in the Midwest. However, the drier soil moisture conditions over the NAMS region limit evapotranspiration, which will drive recycling variability. In …
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A lightning threat index for South Africa using numerical weather prediction data
… available potential energy, lifted index, precipitable water, equivalent potential temperature, relative humidity and air temperature. This study identifies the parameter from each of the six groups capable of predicting the occurrence of lightning over southern Africa the best during …
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Sensing atmospheric water vapour using the global positioning system
… radio astronomers and geodesists. Precipitable water vapour (PWV) is a greenhouse gas to be reckoned with in numerical weather models and climate change studies, it is a nuisance in centimetre-wavelength radio astronomy and introduces range errors in space geodetic techniques. The …
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The Relationship Between Atmospheric Circulation Patterns And Water Surface Elevation In Devils Lake, North Dakota: 1965-2010
… and the NCEP/NCAR Reanalysis datasets of precipitable water and 700 mb (hPa) geopotential height. The results from the two independent datasets show a small and inconsistent link between atmospheric circulation patterns and the water surface elevation changes. Some of the selected surge …
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A GPS-IPW Based Methodology for Forecasting Heavy Rain Events
… is measurable as the profiles of integrated precipitable water (IPW) from the GPS, the vertically integrated liquid (VIL) from the radar (representing different phases of the atmospheric water) and the pressure and temperature profiles are available. An example problem is presented …
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In vitro milk protein secretion by explants of Holstein bull mammary tissue from two different genetic lines
… in homogenized tissue, tri-chloro-acetic acid precipitable 3H-protein in media and homogenized tissue, and DNA content of cultured tissue. A subset of cultured explants from each bull was fixed and embedded for histological evaluation and auto radiographic localization of incorporated …
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The Membrane Polypeptides of the Vacuolar System: Composition and Recycling
… at 4°C leads to incorporation of label into TCA-precipitable material. The incorporated cell-associated label was present as monoiodotyrosine; negligible amounts were found in lipids. Cell viability remained> 99%. Autoradiography at both the light and EM level revealed that > 97% of the cells …
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Improvements to the modelling of radiowave propagation at millimetre wavelengths. In-depth studies are reported on resonance phenomena in the scattering of spherical ice particles, extinction and backscattering properties of clouds and on the absorption and dispersion spectra of atmospheric gases.
… and the physical characteristics of non-precipitable ice and water clouds are reviewed. Extinction and back scattering calculations for a wide variety of cloud models over the entire millimetre frequency spectrum are given. Multiple scattering and the effects of super-large drops in …
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Protein partition and digesta flow in lactating Holsteins fed 2:1 and 1:2 soybean meal:fish meal
… means of LP flows did not differ for total, precipitable protein, or microbial nitrogen, for SF and FS. Total solid phase flow of dry matter was higher for FS (9.06 kg/d) than for SF (7.97 kg/d), although intakes did not differ. Milk composition and yield did not differ for FS and SF. Average …
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Atmospheric delay modeling for satellite laser altimetry
… allowed us to investigate the estimation of precipitable water vapor using GPS data. The validation studies have shown that our atmospheric delay algorithm errors are well within the ICESat error budget of 20 mm. The overall global delay errors are estimated to be approximately 5.4 mm and the …
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