A Satellite-Derived UV Radiation Climatology over Europe to Support Impact Studies

Verdebout, J.

doi:10.1657/1523-0430(2004)036[0357:asurco]2.0.co;2

Cited by 9 publications

(8 citation statements)

References 13 publications

(13 reference statements)

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“…Probabilities of infection during June, July, and August were estimated from a sample of 3016 midwife toads from 126 sites across Iberia with Bayesian statistical models. Walker et al (2010) obtained values in kilojoules per square meter for average daily doses of ultraviolet radiation during June, July, and August 1984–2003 from the UV radiation climatology project (Verdebout 2004), which provides values of radiation at a spatial resolution of 5 km 2 on the basis on data from ozone radiometers in the METEOSAT satellite. These data include other wavelengths of UV, such as UV‐A, but UV dose usually is correlated positively with UV‐B dose.…”

Section: Methodsmentioning

confidence: 99%

Ambient Ultraviolet B Radiation and Prevalence of Infection by Batrachochytrium dendrobatidis in Two Amphibian Species

Ortiz‐Santaliestra

Fisher

Fernández-Beaskoetxea

et al. 2011

Conservation Biology

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Chytridiomycosis, the emerging disease caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd) is responsible for declines and extirpations of amphibian populations worldwide. Environmental covariates modify the host-Bd interaction and thus affect the ongoing spread of the pathogen. One such covariate may be the intensity of ultraviolet B (UV-B) radiation. In a field experiment conducted in Laguna Grande de Peñalara (central Spain), a mountainous region where the presence of Bd has been documented since 1997, we analyzed the potential effect of environmental UV-B (daily maximum 2.5-3.9 W/m(2) ) on the susceptibility of larvae of the common toad (Bufo bufo) to Bd. The proportion of infected individuals increased as tadpoles developed. The prevalence of Bd was significantly lower in tadpoles exposed to environmental UV-B intensities (2.94%) than in tadpoles not exposed to the radiation (9.72%). This finding mirrors that seen for a second amphibian species, the European midwife toad (Alytes obstetricans), for which conditional prevalence (i.e., prevalence of infection conditioned on the probability of a site being infected) across the Iberian Peninsula was inversely correlated with the intensity of UV-B.

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Section: Methodsmentioning

confidence: 99%

Ambient Ultraviolet B Radiation and Prevalence of Infection by Batrachochytrium dendrobatidis in Two Amphibian Species

Ortiz‐Santaliestra

Fisher

Fernández-Beaskoetxea

et al. 2011

Conservation Biology

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“…The primary shortcoming in most methods to estimate daily doses of UVB is the lack of representation of the diurnal variability of clouds. To estimate surface UV fluxes, Verdebout [2000, 2004] and Wuttke et al [2003] used geostationary satellite images from Meteosat for information on the diurnal variability of clouds, and polar orbiting satellites such as TOMS, TOVS and GOME for ozone information. Application of their algorithm is restricted to European regions.…”

Section: Methodsmentioning

confidence: 99%

“…A more comprehensive approach for obtaining estimates of UV fluxes is to merge observations from multiple satellites. Such an approach has been tried by Verdebout [2000, 2004] and by Wuttke et al [2003] for European regions using cloud information from Meteosat and ozone retrievals from GOME and TOMS. The National Oceanic and Atmospheric Administration (NOAA) operates a system of Geostationary Operational Environmental Satellites (GOES), which carry an imager and an atmospheric sounder.…”

Section: Introductionmentioning

confidence: 99%

Estimates of surface ultraviolet radiation over north America using Geostationary Operational Environmental Satellites observations

2008

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[1] Information on ultraviolet (UV) radiative fluxes is needed for public safety, understanding biodiversity, and for chemical transport modeling. Space-based observations can provide homogeneous and systematic estimates of the UV flux over large regions. In the past, UV flux estimates have been made from polar orbiting satellites; such estimates lack information on diurnal variability that can result in significant errors in UV dose (diurnally integrated UV flux). An algorithm has been developed to estimate diurnally varying spectral UV flux at the surface based on information from geostationary satellites (cloud amount, surface albedo and aerosols) and from polar orbiting satellites (ozone). Algorithm evaluation is done by comparison with ground-based observations made between January 1998 and December 2000 over eighteen stations of the United States Department of Agriculture (USDA)'s UV monitoring network. A good agreement between ground-based observations and satellite estimates is found with a mean bias (satellite À ground) of +3.5% for all-sky (cloudy + clear) cases. A negative mean bias of the same magnitude is found for clear-sky cases. Root mean square (RMS) differences are 25% and 14% for all-sky and clear-sky cases, respectively. Using simulations, it is shown that when only one observation near noontime is used to estimate UV dose, errors in the range of À61% to 48% can result, depending on cloud conditions. The RMS difference is 9% and it increases to 13% when off-noon hour (±2 hrs) observations are used to estimate the UV flux over Queenstown, MD.

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“…Figure 9 shows UV Index climatology for a period of four months for North America estimated from different data sources. Surface UV radiation has been determined for Europe using GOME satellite data (Verdebout, 2004). Global climatology has also been estimated using average cloud cover and total ozone values with a discrete ordinate radiative transfer model (Sabziparvar et al, 1999).…”

Section: Forecasted Uv Indexmentioning

confidence: 99%

Surface ultraviolet radiation

Kerr

Fioletov²

2008

Atmosphere-Ocean

107

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A Satellite-Derived UV Radiation Climatology over Europe to Support Impact Studies

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 9 publications

References 13 publications

Ambient Ultraviolet B Radiation and Prevalence of Infection by Batrachochytrium dendrobatidis in Two Amphibian Species

Ambient Ultraviolet B Radiation and Prevalence of Infection by Batrachochytrium dendrobatidis in Two Amphibian Species

Estimates of surface ultraviolet radiation over north America using Geostationary Operational Environmental Satellites observations

Surface ultraviolet radiation

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