Sentences with phrase «radiation measurements at»

The alarming headlines stem from a Tokyo Electric Power Company (TEPCO) announcement of high radiation measurements at the Fukushima site.

Not exact matches

The UV index is an international standard measurement of how strong the ultraviolet (UV) radiation from the sun is at a particular place on a particular day.

«Measurements of the extragalactic background radiation are always hard to get, because this signal is very faint and, as a result, its detection is strongly dependent on how well one can remove the sources of contamination,» says Angelica De Oliveira - Costa, an expert on cosmic background observations at the Massachusetts Institute of Technology.

«Until the 1990s, we thought that the Van Allen belts were pretty well - behaved and changed slowly,» said Geoff Reeves, the first author on the paper and a radiation belt scientist at Los Alamos National Laboratory in Los Alamos, N.M. «With more and more measurements, however, we realized how quickly and unpredictably the radiation belts changed.

This calculation method enabled us to more accurately perform theoretical prediction of IMFP compared to the experimental value, which was obtained by applying spectrometry (extended X ‐ ray absorption fine structure spectrometry) to low - speed electrons of Copper and molybdenum at the high - brilliant synchrotron radiation facility, and to explain the relationship between energy measurement and the types of materials.

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

«The radiation dose rates from measurements obtained over the last four years exceeded trends from previous solar cycles by at least 30 percent, showing that the radiation environment is getting far more intense,» said Nathan Schwadron, professor of physics and lead author of the study.

If a sample is radiation - sensitive, it can be difficult to do the experiment at a synchrotron, where X-ray pulses tend to be longer and samples may be damaged during the measurement.

An accurate measurement of the EBL is as fundamental to cosmology as measuring the heat radiation left over from the Big Bang (the cosmic microwave background) at radio wavelengths.

«This is the first time detailed measurements of Earth's radiation belts have ever been recorded during such rare conditions,» said Harlan Spence, director of EOS at UNH and a co-author of the study.

If the phenomena are the same, the Korean measurements would suggest that «radiation clouds» may exist at middle latitudes, too.

«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).

Comprehensive measurements from ARM's state - of - the - art instrument systems at Barrow and Oliktok Point will help scientists improve the understanding of high - latitude cloud and radiation processes, and their representation in global climate models.

Surface measurements find more longwave radiation returning back to Earth at these same wavelengths.

''... Satellite measurements confirm less longwave radiation is escaping to space... Surface measurements find more longwave radiation returning back to Earth at these same wavelengths.»

Satellite measurements confirm less longwave radiation is escaping to space at carbon dioxide absorptive wavelengths.

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.

Using satellite radiation balance measurements and ocean heaing measurements the earth appears to be gaining heat at a rate of 0.6 Watts / M2 on average.

Other needs: make cloud and radiation measurements; perform experiments at appropriately short physical and temporal scales; and amass relevant data any climate researcher could use.

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

Finally, a small surface radiation and ceilometer system was deployed at the PNG Lombrum Naval Base about 6 km away from the Manus ARM site in order to provide some documentation of scale variability with respect to the representativeness of the ARM measurements.

A new paper published in Atmospheric Chemistry and Physics finds from direct measurements that there was a significant increase in solar radiation at the surface of the Northern Hemisphere from 1982 to 2008.

''... Satellite measurements confirm less longwave radiation is escaping to space... Surface measurements find more longwave radiation returning back to Earth at these same wavelengths.»

Both measurements and models show that there is no reduction in IR radiation out at Top - of - atmosphere.

Kipp & Zonen is launching a new solar radiation measurement solution at Intersolar Europe 2016.

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.

Also, I could not find any correctly conducted experiments (tests & measurements) that would somehow prove to me that the warming properties of CO2 (by trapping earth's radiation between the wavelengths 14 - 15 um) are greater than its cooling properties (by deflecting sunlight at various wavelengths between 0 — 5 um).

Just look at the satellite measurements of LW infrared radiation coming up from the earth.

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?

Thompson looks at several peer - reviewed analyses examining satellite measurements of outgoing longwave radiation.

The SST of the periode mentioned as tuning parameter seems to be much more plausibely than the TOA - imbalance which is not directly observable at all also with the sofisticatest recent technonolgies, see http://journals.ametsoc.org/doi/abs/10.1175/JAMC-D-16-0406.1 «Uncertainties in absolute calibration and the algorithms used to determine Earth's radiation budget from satellite measurements are too large to enable Earth's energy imbalance to be quantified in an absolute sense.»

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.

If one looks at the satellite measurements of radiation from the earth you see that at certain wavelengths the radiation is characteristic of the temperature of the earth's surface.

Abstract Measurements of the flux of downward solar radiation through the atmosphere of Venus and at the planetary surface are reported.

With these measurements, the role of solar radiation and wind speed could be treated as separate entities, so that when these two phenomena occur at different times of day — as they do over the Dead Sea, which is windy and dark at night but calm and sunny during the day — it is possible to determine their individual impacts on evaporation.

The evidence here comes from satellite measurements of infrared radiation escaping from the earth into outer space, from measurements of sunlight reflected from clouds and from measurements of the temperature the earth's surface or of the troposphere, the roughly 10 km thick layer of the atmosphere above the earth's surface that is filled with churning air and clouds, heated from below at the earth's surface, and cooled at the top by radiation into space.

When partnered with cloud remote sensing observations the radiation measurements and retrievals allow the characterization of cloud and aerosol radiative effects at the surface, which is essential in order to quantify the amount of radiative energy available at the surface to interact with heating the air, evaporating water, and interacting with clouds and greenhouse gasses in the atmosphere.

Call it «less cooling» or «back radiation» or «invisible pajamas» but the measurements and the math arrive at the same conclusion.

Although the amount of UV radiation reaching the snow surface at Summit is notably influenced by stratospheric ozone levels, the UV measurement time series available in the Arctic is not yet long enough to allow trends to be detected.

So previously I asked about the measurements at the surface of downward radiation in the 15um CO2 band.

CERES achieves high radiometric measurement precision and accuracy, and it measures comprehensive Earth radiation budget parameters at higher accuracy than did its predecessors.

But though Pouillet was the first to examine DLR in the large context of Earth's heat budget, he was not the first to make experimental measurements of radiation at night.

But at the very least, the soot concentration measurements show that the soot is there, and the most solid part of the deductive chain — the fact that soot makes snow absorb more radiation — is already firmly in place.

I have also noted from my experience with heat transfer measurement and calculation that at low surface temperatures (less than 50C) convection is more important than radiation.