Sentences with phrase «radiation measurement for»

Not exact matches

The WEIGHTRAC 31 is a radiation - based sensor for precise flow measurement of bulk solids.

The Mesonet system will collect measurements such as temperature, relative humidity, wind speed and direction, surface pressure, soil moisture, soil temperature, solar radiation, and precipitation amounts for rainfall and snow accumulation.

APRIL 1960 RADIATION — «With the new measurement of the mean lethal dose for reproductive function of mammalian cells, it is now possible to explain the relatively low mean lethal dose of 400 to 500 roentgens for the entire body.

In 1925, three decades after Röntgen's discovery and after the loss of possibly hundreds of lives to radiation sickness, the National Council on Radiation Protection and Measurements was formed to establish a maximum exposure for X-rays.

The measurements have also played a vital role in UNH space scientists» efforts to develop both the first Web - based tool for predicting and forecasting the radiation environment in near - Earth, lunar, and Martian space environments and a space radiation detector that possesses unprecedented performance capabilities.

The papers in a special issue of the journal Space Weather document and quantify measurements made since 2009 by the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) radiation detector.

Snow, humidity, and solar radiation measurements are too sparse, for example, and few observations of soil moisture or groundwater stocks exist.

Outfitted with specialised instruments, the buoy functions as an unmanned research platform for continuous measurements of solar radiation absorption and other critical properties of Arctic snow and ice.

The newly released measurements constitute a nearly continuous global record of the variability in this radiation belt for the past 16 years, including how it responds to solar storms.

All the characteristics mentioned before turn this device into an instrument of electromagnetic fields measurements for any person who wish to control the radiation levels.

The new approach involves using a radiation detector to take multiple periodic measurements of an air sample for at least two hours.

Human skin emits infrared radiation almost like a perfect black body, and IRT is thus well suited for the measurement of skin temperature.

To find out whether the test sites are once again safe for humans, researchers took measurements of damaging gamma radiation on six affected islands, one unaffected island, and New York City's Central Park.

«We have flown radiation sensors onboard 264 research flights at altitudes as high as 17.3 km (56,700 ft) from 2013 to 2017,» says Kent Tobiska, lead author of the paper and PI of the NASA - supported program Automated Radiation Measurements for Aerospace Safety (ARMAS).

The micrometre is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cells and bacteria, [1] and for grading wool by the diameter of the fibres.

SNL is an internationally recognized leader in the development of MOFs for practical applications, with several MOF - related «firsts,» including integration with MEMS devices, measurement of mechanical properties, catalytic nanoreactors for hydrogen storage, and luminescent MOFs for radiation detection.

For instance, taking one of the two examples mentioned above, the radiation code can be tested against field measurements at specific times and places where the composition of the atmosphere is known alongside a line - by - line code.

Ok, so we aren't quite there with measuring the radiation budget; for now, just look at relative rather than absolute measurement.

Please show where I have relied on «computer models with an almost 100 % fail rate» for measurements of back radiation.

Incoming solar radiation is measured by satellites; the recent minimum set records for the reduction in solar radiation since satellite measurements began in the 1970s.

Temperatures aloft can be measured in a number of ways, two of which are useful for climate monitoring: by radiosondes (balloon - borne instrument packages, including thermometers, released daily or twice daily at a network of observing stations throughout the world), and by satellite measurements of microwave radiation emitted by oxygen gas in the lower to mid-troposphere, taken with an instrument known as the Microwave Sounding Unit (MSU).5 The balloon measurements are taken at the same Greenwich mean times each day, whereas the times of day of the satellite measurements for a given location drift slowly with changes in the satellite orbits.

«Our results demonstrate how synergistic use of satellite TOA radiation observations and recently improved ocean heat content measurements, with appropriate error estimates, provide critical data for quantifying short - term and longer - term changes in the Earth's net TOA radiation imbalance.

Aerosol collections on the NOAA Ron Brown for subsequent processing of INP activation temperature spectra and composition analyses, add a valuable measurement to the ACAPEX and related CalWater2 (NOAA) studies for use in parameterizing and modeling the impacts of marine boundary layer and other aerosols on climate and radiation via aerosol - indirect effects on mixed phase clouds.

Trenberth 2009 examined satellite measurements of incoming and outgoing radiation for the March 2000 to May 2004 period and found the planet accumulating energy at a rate of 0.9 ± 0.15 Wm?

«An automated quality assessment and control algorithm for surface radiation measurements.»

The QCRAD methodology uses climatological analyses of the surface radiation measurements to define reasonable limits for testing the data for unusual data values.

The measurements have been performed for the increase of the back radiation by approximately 100 W / m ^ 2 due to the appearance of clouds above the ocean as compared to the cloudless sky.

But for those who want to see a better experiment that compared real and modeled conditions, take a look at Part Six — Visualization where actual measurements of humidity and temperature through the atmosphere were taken, the detailed spectra of downwards longwave radiation was measured and the model and measured values were compared.

``... The solar X-ray radiation varies more than other wavelengths during flares; thus solar X-ray irradiance measurements are relied upon for detecting flare events as well as used to study flare parameters.

To correct for aerosol absorption of the radiation, ship and buoy near - surface temperature measurements are required to calibrate the SST values.

His research has been closely aligned with the development of increasingly sophisticated satellite platform measurements, such as the terrestrial radiation budget, ozone and weather - related data, and the need for increasingly sophisticated atmospheric models to assess and evaluate the information content and utility of these measurements.

The device is indeed measuring radiation, then combining this measurement with others to calculate a temperature for the object.

Great to hear from you again Dave Springer and thanks again for putting me on to the radiation measurement curves in the Perry book in your comment on a previous thread.

Some participants also noted the need for ocean measurement input to several atmospheric ECVs (surface wind speed and direction, precipitation, surface radiation, surface air temperature, and water vapor).

1950s: Research on military applications of radar and infrared radiation promotes advances in radiative transfer theory and measurements = > Radiation math — Studies conducted largely for military applications give accurate values of infrared absorption by gases = > CO2 greenhouse — Nuclear physicists and chemists develop Carbon - 14 analysis, useful for dating ancient climate changes = > Carbon dates, for detecting carbon from fossil fuels in the atmosphere, and for measuring the rate of ocean turnover = > CO2 greenhouse — Development of digital computers affects many fields including the calculation of radiation transfer in the atmosphere = > Radiation math, and makes it possible to model weather processes = > Models (GCMs)-- Geological studies of polar wandering help provoke Ewing - Donn model of ice ages = > Simple models — Improvements in infrared instrumentation (mainly for industrial processes) allow very precise measurements of atmospheric CO2 = > CO2 greenhouse.

my percentages using data from Evans and Puckrin: Figure 1 shows the strong CO2 peak (Winter measurement) as noted by SoD in earlier comments, and in corresponding Table 2, we see that CO2 accounts for about 80 % of the back radiation on a water free basis.

We all know, of course, Trenberth's now famous behind the scenes remark that it is a travesty that we can't account for the lack of recent global warming, and his exclamation that the observing system must be inadequate (which I guess is reference to the satellite radiation budget measurements?).

I was not talking about Angstrom's solar radiation measurements, even though you mentioned Angstrom's experiment being conclusive, since it's Koch's experiment, as stated above, that was mainly used to argue for saturation.

Yet, the characteristics of clouds on which the back radiation is most dependent, such as cloud base, are not well determined from conventional space - based measurements and hence the need for missions such as CloudSat (e.g., Stephens et al. 2002; Haynes and Stephens 2007).

So, the 729.9 W / m ^ 2 shown during the hours just before and after noon on a dry clear - sky day should be reading somewhat below 729.9 / (1 — 0.313) or less than 1062 W / m ^ 2 by measurement, near noon, on the equator, for the atmosphere itself, in those conditions, would not be absorbing as much direct solar radiation as the average shows in column C either (no clouds).

Considerable work is needed to develop radiation - budget instruments for surface - based measurements.