搜索结果: 1-15 共查到“理学 UV radiation”相关记录16条 . 查询时间(0.091 秒)
Interest in the effects of ultraviolet (UV) radiation on the marine environment surged after the Antarctic ozone hole was discovered in the mid 1980s. Much of the ensuing research has focused on quant...
X-rays and hard UV radiation From the First Galaxies: Ionization Bubbles and 21 cm Observations
stars: Population III. galaxies: high-redshift. (galaxies:) quasars: general. galaxies: star formation. cosmology: theory. (cosmology:) dark ages, reionization, rst stars
2011/10/9
The first stars and quasars are known sources of hard ionizing radiation in the first billion years of the Universe. We examine the joint effects of X-rays and hard UV radiation from such first-light ...
Comparison of TOMS retrievals and UVMRP measurements of surface spectral UV radiation in the United States
TOMS retrievals UVMRP measurements surface spectral UV radiation
2010/9/21
Surface noontime spectral ultraviolet (UV) irradiances during May-September of 2000–2004 from the total ozone mapping spectrometer (TOMS) satellite retrievals are systematically compared with the grou...
Ocean acidification exacerbates the effect of UV radiation on the calcifying phytoplankterEmiliania huxleyi
Ocean acidification UV radiation the calcifying phytoplankter Emiliania huxleyi
2014/4/17
Increasing atmospheric CO2 concentration affects calcification in most planktonic calcifiers. Both reduced or stimulated calcification under high CO2have been reported in the widespread coccolithophor...
Extensive reduction of surface UV radiation since 1750 in world's populated regions
Extensive reduction surface UV radiation world's populated regions
2009/11/9
Human activity influences a wide range of components that affect the surface UV radiation levels, among them ozone at high latitudes. We calculate the effect of human-induced changes in the surface er...
Protostellar Disks under the Influence of Winds and UV Radiation
Protostellar Disks Winds UV Radiation
2009/6/16
Protostellar Disks under the Influence of Winds and UV Radiation。
Stratospheric Ozone Depletion and Solar UV Radiation in the Arctic and Its Potential Impact on Human Health in Finland
UV Impact Ozone Human Health
2009/6/12
Stratospheric Ozone Depletion and Solar UV Radiation in the Arctic and Its Potential Impact on Human Health in Finland.
UV-enhanced fish predation and the differential migration of zooplankton in response to UV radiation and fish
UV-enhanced fish predation zooplankton
2014/4/18
The intensity and spectral composition of visible light are known to influence fish predation on zooplankton.
However, in clear-water systems, ultraviolet (UV) radiation (UVR) may also influence fish...
INTERACTION BETWEEN VARIABLE SOLAR UV RADIATION AND TROPOSPHERIC CIRCULATIONS AS A POSSIBLE CAUSE OF FIVE YEAR OSCILLATION IN EARTH ROTATION
VARIABLE SOLAR UV RADIATION TROPOSPHERIC CIRCULATIONS EARTH ROTATION
2009/3/16
It is shown that Five Year Oscillation in Earth rotation is possibly
caused by variable solar UV radiation and a corresponding perturbation mechanism
is suggested.
UV radiation below an Arctic vortex with severe ozone depletion
UV radiation Arctic vortex ozone depletion
2009/1/14
The erythemally weighted (UV) irradiance below the severely depleted Arctic vortices in spring 1996 and 1997 were substantially elevated. On average the UV increased 36 and 33% relative to the 1979-19...
Typical distribution of the solar erythemal UV radiation over Slovakia
solar erythemal UV radiation Slovakia
2008/11/19
Maps of solar erythemal ultraviolet (EUV) irradiance daily doses were created for every month with a horizontal resolution of 500 m at the geographical domain 47.15 N–49.86 N×16.94 E–22.81 E covering ...
Long-term solar UV radiation reconstructed by ANN modelling with emphasis on spatial characteristics of input data
solar UV radiation ANN input data
2008/11/11
Artificial Neural Networks (ANN) are efficient tools to derive solar UV radiation from measured meteorological parameters such as global radiation, aerosol optical depths and atmospheric column ozone....
Measurements of UV radiation on rotating vertical plane at the ALOMAR Observatory (69° N, 16° E), Norway, June 2007
UV radiation ALOMAR Observatory Norway
2008/11/11
Erythemaly weighted UV and total UV-A irradiance measured at the ALOMAR (Arctic Lidar Observatory for Middle Atmosphere Research; 69° N, 16° E) in June 2007 by two Kipp & Zonen UV broadband meters typ...
Effect of UV radiation and temperature on the emission of methane from plant biomass and structural components
UV radiation emission methane plant biomass structural components
2010/1/15
The recently reported finding that plant matter and living plants produce significant amounts of the important greenhouse gas methane under aerobic conditions has led to an intense scientific and publ...
Picophytoplankton cell death induced by UV radiation: Evidence for oceanic Atlantic communities
Picophytoplankton cell death induced oceanic Atlantic communities
2014/4/23
We analyzed the effect of ambient levels of visible and ultraviolet radiation (UVR) on picophytoplankton cell
death by exposing natural communities of picophytoplankton (Prochlorococcus, Synechococcu...