Satellite and ground measurements of solar erythemal UV radiation and ozone in Argentina

Piacentini, R. D.; Luccini, Eduardo; Micheletti, M. I.; Quel, E. J.; Wolfram, Elián; Pazmiño, Andréa; Fochesatto, Javier; Crino, E.; Cede, Alexander; Blumthaler, M.; Herman, J. R.; Godin‐Beekmann, Sophie; Mégie, G.

doi:10.1016/j.asr.2003.07.058

Cited by 8 publications

(9 citation statements)

References 13 publications

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“…Solar erythemal UV radiation incident on a range of tropical to high latitude regions from Argentina was ground measured by Piacentini et al . : in Marambio Base, Antartica (64.23°S, 56.78°W, 300 m) the UV Ery (in kJ m −2 ) was 0 and 2.3 in July and January, respectively, whereas in Buenos Aires (34.61°S, 58.41°W, 25 m) it was estimated as ranging between 0.8 (July) and 6.2 (January). In turn, at the Northwestern city of La Quiaca (22.11°S, 65.57°W, 3459 m) in the Puna region, the UV Ery was as high as 3.6 in July and 9.5 in January.…”

Section: High‐altitude Andean Lakes: Empire Of the Sunmentioning

confidence: 94%

“…As the ozone column is naturally thinner over the tropics, and UV intensity increases with the altitude, the Puna‐High Andes region is consequently exposed to an exceptionally high solar irradiation including harmful UV levels; there are numerous individual reports of climatologists and biologists exploring the Puna‐High Andes region reporting astonishing solar levels in different sampling points or climatological stations for ground measurements . Solar erythemal UV radiation incident on a range of tropical to high latitude regions from Argentina was ground measured by Piacentini et al .…”

Section: High‐altitude Andean Lakes: Empire Of the Sunmentioning

confidence: 99%

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Forged Under the Sun: Life and Art of Extremophiles from Andean Lakes

Albarracín

Gärtner

Farı́as

2015

Photochem & Photobiology

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High-altitude Andean lakes (HAAL) are a treasure chest for microbiological research in South America. Their indigenous microbial communities are exposed to extremely high UV irradiation and to multiple chemical extremes (Arsenic, high salt content, alkalinity). Microbes are found both, free-living or associated into microbial mats with different degrees of mineralization and lithification, including unique modern stromatolites located at 3570 m above sea level. Characterization of these polyextremophilic microbes began only recently, employing morphological and phylogenetic methods as well as high-throughput sequencing and proteomics approach. Aside from providing a general overview on microbial communities, special attention is given to various survival strategies; HAAL's microbes present a complex system of shared genetic and physiological mechanisms (UV-resistome) based on UV photoreceptors and stress sensors with their corresponding response regulators, UV avoidance and protection strategies, damage tolerance and UV damage repair. Molecular information will be provided for what is, so far the most studied HAAL molecule, a CPD-Class I photolyase from Acinetobacter Ver3 (Laguna Verde, 4400 m). This work further proposes some strategies that make an appeal for the preservation of HAAL, a highly fragile environment that offers promising and ample research possibilities.

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Section: High‐altitude Andean Lakes: Empire Of the Sunmentioning

confidence: 94%

Section: High‐altitude Andean Lakes: Empire Of the Sunmentioning

confidence: 99%

Forged Under the Sun: Life and Art of Extremophiles from Andean Lakes

Albarracín

Gärtner

Farı́as

2015

Photochem & Photobiology

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“…UV radiation has proved responsible for many chronic adverse effects on the skin, such as erythema and skin cancer, making, the use of sunscreens essential to prevent such problems [114][115][116]. Some authors have developed nanostructured systems containing UV-blockers, enhancing the photoprotection by synergy, combining the benefits of sun screening and active substance [114].…”

Section: Solid Lipid Nanoparticles (Sln) and Nanostructured Lipid Carmentioning

confidence: 99%

Nanotechnology-Based Drug Delivery Systems for Treatment of Hyperproliferative Skin Diseases - A Review

Santos¹,

Oyafuso²,

Kiill³

et al. 2013

Current Nanoscience

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The chronic hyperproliferative diseases (CHD) include cancer, precancerous lesions and diseases of unknown etiology such as psoriasis. Various drugs have been used in the treatment of CHD, such as antiproliferative and corticosteroids in general. However, some drugs have properties that limit their effectiveness, such as low solubility in water and low penetration of the skin. Thus, the control of drug release in the skin may improve efficacy and reduce side effects of many drugs used in hyperproliferative diseases. The purpose of this study was to make a systematic review of nanotechnology-based drug delivery systems used against hyperproliferative skin diseases.

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“…The PEREX model is based on different data sources from shipborne solar UV radiation instruments on deck and on the person [Meyer et al, 2014;Feister et al, 2013] as well as on a climatology of worldwide gridded monthly averages of daily solar erythemal exposure derived from hourly UV index forecasts by Deutscher WetterDienst (DWD, German Meteorological Service). The database was derived for cloudless and cloudy-sky conditions from short-term UV forecast data during the period of 2004, 2014]. It will be compared to ship-based measurements of erythemal radiation taken along four routes of merchant ships, 2 years of erythemal radiation measurements taken on the research vessel (R/V) Meteor (2009Meteor ( -2010, and satellite-based (1 × 1)°grid data of daily erythemal exposure from the Ozone Monitoring Instrument (OMI) on the Earth Observing System (EOS) Aura satellite [Tanskanen et al, 2007].…”

Section: Introductionmentioning

confidence: 99%

“…It will be compared to ship-based measurements of erythemal radiation taken along four routes of merchant ships, 2 years of erythemal radiation measurements taken on the research vessel (R/V) Meteor (2009Meteor ( -2010, and satellite-based (1 × 1)°grid data of daily erythemal exposure from the Ozone Monitoring Instrument (OMI) on the Earth Observing System (EOS) Aura satellite [Tanskanen et al, 2007]. While a number of validation studies of solar erythemal irradiance from different satellite data sets have been performed using ground-based observations at terrestrial sites [e.g., Kalliskota et al, 2000;Wang et al, 2000;McKenzie et al, 2001;Chubarova et al, 2002;Fioletov et al, 2004;Piacentini et al, 2004;Arola et al, 2005;Meloni et al, 2005;Tanskanen et al, 2007;Buchard et al, 2008;Ialongo et al, 2008;Weihs et al, 2008;Kazadzis et al, 2009;Lindfors et al, 2009;Janjai et al, 2010;Mateos et al, 2013;Sharma et al, 2013], the present analysis deals for the first time with comparisons of PEREX model data, satellite-based data, and ship-based measurements along shipping routes on the world oceans. Comparisons between the database of PEREX erythemal exposure were performed along four shipping routes of merchant vessels and along the R/V Meteor track comprising about 130,000 km (about 70,000 nautical miles) from 2009 to 2010.…”

Section: à2mentioning

confidence: 99%

Validation of modeled daily erythemal exposure along tropical and subtropical shipping routes by ship‐based and satellite‐based measurements

et al. 2015

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The Personal ERythemal EXposure (PEREX) model for seafarers working on decks of vessels has been developed to be used for retrospective estimates of personal occupational erythemal exposure in dependence of work profile, time period, and sea route. Extremely high UV index values up to 22 and daily erythemal exposure up to 89 standard erythemal dose have been derived from ship-based measurements in tropical oceans. Worldwide climatological maps of daily solar erythemal exposure derived from 10 year (2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013) hourly grid point radiative transfer model calculations for both cloudless sky and cloudy sky serve as the database of PEREX. The PEREX database is compared with ship-based measurements taken along four routes of merchant vessels, continuous UV radiation measurements taken on the research vessel Meteor on its mainly tropical and subtropical routes for 2 years, daily cloudless-sky erythemal exposure derived from 10 min LibRadtran radiative transfer model calculations, and 2 years of satellite-based erythemal exposure data of the Ozone Monitoring Instrument on the Aura satellite along the ship routes. Systematic differences between PEREX model data, ship-based data, and satellite-based daily erythemal exposure for all-sky conditions are only 1 to 3%, while short-term variations of cloudiness result in standard deviations of differences around 30%. Measured ratios between cloudless-sky erythemal radiation at vertical to horizontal incidence decrease with decreasing solar zenith angle, while clouds flatten their diurnal course.

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Satellite and ground measurements of solar erythemal UV radiation and ozone in Argentina

Cited by 8 publications

References 13 publications

Forged Under the Sun: Life and Art of Extremophiles from Andean Lakes

Forged Under the Sun: Life and Art of Extremophiles from Andean Lakes

Nanotechnology-Based Drug Delivery Systems for Treatment of Hyperproliferative Skin Diseases - A Review

Validation of modeled daily erythemal exposure along tropical and subtropical shipping routes by ship‐based and satellite‐based measurements

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