Sentences with phrase «solar radiation data»

The NSRDB accounts for any recent climate changes and provides more accurate values of solar radiation due to a better model for estimating values (more than 90 percent of the solar radiation data in both data bases are modeled), more measured data including direct normal radiation, improved instrument calibration methods, and rigorous procedures for assessing quality of data.

Main activity there is the support of IEC TC 117, project 62862 -1-2 dealing with creation of annual solar radiation data sets frequently known as TMY for CSP / STE performance simulations.

Since solar radiation data were not available for these sites, we calculated monthly mean values, using differences between temperature extremes following procedures outlined by Coops et al. -LRB-[2000]-RRB-.

In addition to temperature, wind, and solar radiation data, the Pacific saildrones are measuring how the ocean and air exchange gases like carbon dioxide and oxygen, and they are using Doppler instruments to gauge currents coursing up to 100 meters below the surface.

Not exact matches

The team analysed data gathered over seven years by the international Cassini probe, and found that the interactions between Titan's atmosphere, and the solar magnetic field and radiation, create a wind of hydrocarbons and nitriles being blown away from its polar regions into space.

The first decade showed little change, but starting around 1996, the data show that due to darkening, the ice began absorbing about 2 percent more solar radiation per decade.

In the study, long - term historical meteorological data were combined with relatively short measurements of air pollution particles in China in an innovative way to clarify interactions among the solar radiation, surface wind and air pollution.

The dramatic data visualization of ions escaping Mars» atmosphere due to solar wind radiation, along with a display of energy of the escaping particles in a brown to white plume was cited for its impact, originality, execution and editorial relevance.

Though there are serious issues with the quality of some of the data (birds drinking out of uncovered evaporation pans, drift and inhomogeneities in the solar radiation measuring instruments), in the most global assessment, Beate Liepert estimated that there was globally a reduction of about 4 % in solar radiation reaching the ground between 1961 and 1990.

Also we have just begun to get good data about solar radiation in the last 20 or so years.

While there is good data over the last century, there were many different changes to planet's radiation balance (greenhouse gases, aerosols, solar forcing, volcanoes, land use changes etc.), some of which are difficult to quantify (for instance the indirect aerosol effects) and whose history is not well known.

However, they ignore much other data than year - to - year temperature readings, and they ignore basic physics (carbon dioxide affects solar radiation how?).

Solar activity has been the highest in the previous 4 centuries: http://www.climate4you.com/images/SolarIrradianceReconstructedSince1610%20LeanUntil2000%20From2001dataFromPMOD.gif The empirical data from peer reviewed science, Hatzianastassiou (2005), Goode (2007), Pinker (2005), Herman (2013), McLean (2014), shows that during the last 2 decades of the 20th century when most of the late 20th century warming occurred, the amount of solar radiation reaching the earth's surface increased by 2.7 W / m ² to 6.8 W /Solar activity has been the highest in the previous 4 centuries: http://www.climate4you.com/images/SolarIrradianceReconstructedSince1610%20LeanUntil2000%20From2001dataFromPMOD.gif The empirical data from peer reviewed science, Hatzianastassiou (2005), Goode (2007), Pinker (2005), Herman (2013), McLean (2014), shows that during the last 2 decades of the 20th century when most of the late 20th century warming occurred, the amount of solar radiation reaching the earth's surface increased by 2.7 W / m ² to 6.8 W /solar radiation reaching the earth's surface increased by 2.7 W / m ² to 6.8 W / m ².

«But no radiative data is used» It must be incorporated in his model, he states «The all - sky climatological greenhouse effect (the difference of the all - sky surface upward flux and absorbed solar flux) at this surface is equal to the reflected solar radiation.»

After Mount Pinatubo erupted, while overall solar radiation was reduced by less than five percent, data showed a reduction of direct radiation by as much as 30 percent.

Sunspot observations (going back to the 17th century), as well as data from isotopes generated by cosmic radiation, provide evidence for longer - term changes in solar activity.

WOUDC receives guidance from the WMO SAG for issues related to both ozone and solar ultraviolet radiation data.

The SAG on ozone and solar ultraviolet radiation establish data quality objectives and standard operating procedures outlining measurement methods and procedures.251

It will approach within 4 million miles of the sun, facing heat and radiation, to provide new data on solar activity, which could make crucial contributions to mankind's ability to forecast major space - weather events that can affect life on Earth.

On the historical scale — the paleoclimate scale — the sun is important, we know the sun is driving these long cycles, but if you look at the small variations in the solar radiation and the variations in the climate data they don't match up.

This measure is available for the US from the BEST data set... The reconfirmation now of a strong sun - temperature relation based specifically upon the daytime temperature maxima adds strong and independent scientific weight to the reality of the sun - temperature connection... This suggests strongly that changes in solar radiation drive temperature variations on at least a hemispheric scale... Close correlations like these simply do not exist for temperature and changing atmospheric CO2 concentration.»

A study on 1981 to 1995 weather data (Pretlove and Oreszczyn, 1998) indicated that temperature and solar radiation in the London area (UK) had changed significantly over the period, and climatic data used for energy design calculations could lead to 17 % inaccuracies in building energy - use estimates.

«These data, together with newly available surface observations from the Baseline Surface Radiation Network (BSRN) from 1990 to present, show that the decline in solar radiation reaching land surfaces seen in earlier data disappears in the 1990's.»

The only researched and quantified contribution of atmosphere on global temperature has been that of applying the Ideal Gas Laws and insolation [familiar to those educated before the popularity of «back radiation»]- Nikolov and Zeller being one example using empirically derived data from other atmospheric bodies within the Solar System.

Equinox Instruments Limited specialises in providing class leading instruments to its customers with a product portfolio that includes solar radiation sensors, compact weather stations, ultrasonic wind sensors, anemometers, wind vanes, sun tracking systems, scintillometers, sky radiometers, data loggers, temperature profilers, chart recorders, and data acquisition recorders.

This has been documented by the data of Martin Wild and others demonstrating a reduction in «solar surface radiation» during that interval — i.e, a reduction in that fraction of sunlight incident on the TOA that reached the surface under both clear sky and all - sky conditions.

In this context, mass - balance buoy data (including — as a first — a buoy in first - year ice) provide a good means of assessing the progression of bottom and surface melt, potentially allowing conclusions about the disposition of solar radiation.

Of general interest for all solar energy applications is the proposal of a flexible time series - format for solar radiation specific meteorological input data, which is drafted as IEC 62862 -1-3 and now available as a TCP Report.

Recent satellite data have revealed, however, that there seems to be a surprising spectral component to solar variability, at least in the declining phase of the current solar cycle: UV radiation decreases strongly while visible radiation increases.

In the SORCE data, total solar radiation is 330.5 Wm - 2 based on Earth's surface area — cell «2003»!

The data I use are for average daily «global» (= total) direct + diffuse solar radiation expressed as Wh / sq.