Correlations between VIMS and RADAR data over the surface of Titan: Implications for Titan’s surface properties

Tosi, F.; Orosei, R.; Seu, R.; Coradini, A.; Lunine, Jonathan I.; Filacchione, G.; Gavrishin, A. I.; Capaccioni, F.; Cerroni, P.; Adriani, A.; Moriconi, M. L.; Negrão, A.; Flamini, E.; Brown, R. H.; Wye, L.; Janssen, M. A.; West, Richard; Barnes, Jason W.; Wall, S. D.; Clark, R. N.; Cruikshank, D. P.; McCord, T. B.; Nicholson, P. D.; Soderblom, Jason M.

doi:10.1016/j.icarus.2010.02.003

Cited by 9 publications

(6 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It has a high backscatter but low emissivity as indicated in scatterometry and radiometry measurements, which is consistent with a water-ice composition in the bedrock (Wye et al 2007;Zebker et al 2008;Janssen et al 2009;. Furthermore, some portions of Xanadu are correlated with the VIMS dark blue unit, indicating there is a higher than average percentage of water-ice exposed at the surface Tosi et al, 2010).…”

Section: Xanadusupporting

confidence: 66%

“…Correlations between near-infrared and microwave data of Titan's surface are useful to gather a broader understanding of surface properties. These were quantified at coarse spatial resolution by Tosi et al (2010), who applied a multivariate statistical analysis to an aggregated data set made up of infrared spectra acquired by VIMS at spatial resolution of tens of km together with scatterometry and radiometry data measured by RADAR. This technique allowed for the identification of regional surface units at equatorial to mid-latitudes.…”

Section: Surface Composition From Vims and Radarmentioning

confidence: 99%

See 1 more Smart Citation

Titan as Revealed by the Cassini Radar

et al. 2019

Self Cite

View full text Add to dashboard Cite

Titan was a mostly unknown world prior to the Cassini spacecraft's arrival in July 2004. We review the major scientific advances made by Cassini's Titan Radar Mapper (RADAR) during 13 years of Cassini's exploration of Saturn and its moons. RADAR measurements revealed Titan's surface geology, observed lakes and seas of mostly liquid methane in the polar regions, measured the depth of several lakes and seas, detected temporal changes on its surface, and provided key evidence that Titan contains an interior ocean. As a result of the Cassini mission, Titan has gone from an uncharted world to one that exhibits a variety of Earth-like geologic processes and surfaceatmosphere interactions. Titan has also joined the ranks of "ocean worlds" along with Enceladus and Europa, which are prime targets for astrobiological research.

show abstract

Section: Xanadusupporting

confidence: 66%

Section: Surface Composition From Vims and Radarmentioning

confidence: 99%

Titan as Revealed by the Cassini Radar

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…The surface of Titan was observed from orbit using radar and imaging at infrared wavelengths, which showed broad regions of light and dark terrain (58) and geologic processes reminiscent of those on Earth. However, with surface temperatures around 93 K, methane plays the role of water on Earth, and solid water ice is an ingredient of Titan's bedrock.…”

Section: Titan An Earth-like Analogmentioning

confidence: 99%

Cassini-Huygens’ exploration of the Saturn system: 13 years of discovery

Spilker

2019

Science

View full text Add to dashboard Cite

The Cassini-Huygens mission to Saturn provided a close-up study of the gas giant planet, as well as its rings, moons, and magnetosphere. The Cassini spacecraft arrived at Saturn in 2004, dropped the Huygens probe to study the atmosphere and surface of Saturn’s planet-sized moon Titan, and orbited Saturn for the next 13 years. In 2017, when it was running low on fuel, Cassini was intentionally vaporized in Saturn’s atmosphere to protect the ocean moons, Enceladus and Titan, where it had discovered habitats potentially suitable for life. Mission findings include Enceladus’ south polar geysers, the source of Saturn’s E ring; Titan’s methane cycle, including rain that creates hydrocarbon lakes; dynamic rings containing ice, silicates, and organics; and Saturn’s differential rotation. This Review discusses highlights of Cassini’s investigations, including the mission’s final year.

show abstract

“…Для детального анализа качества шахтных вод выполнено выделение однородных типов вод с применением компьютерной технологии AGAT-2, реализующей G-метод классификации многомерных наблюдений (выделение однородных сово-купностей), который основан на оригинальном критерии Z 2 -Гавришина [Gavrishin, 2018a;Tossi et al, 2010].…”

Section: методика исследованийunclassified

“…Эта технология позволяет: строить классификацию наблюдений в условиях самоорганизации (задача без учителя); выделять таксоны различных уровней; использовать зависимые признаки; не ограничивать соотношение между числом наблюдений (N) и числом признаков (М); оценивать сходства-различия между однородными таксонами и др. Указанная цифровая технология классификации многомерных наблюдений (G-метод) успешно применена при изучении природных и антропогенных систем на Земле, Луне, Марсе, Юпитере, кометах, астероидах и в дальнем космосе [Gavrishin, 2018a;Tossi et al, 2010].…”

Section: методика исследованийunclassified

The mine water in the management of groundwater pollution in the Eastern Donbass

Gavrishin¹

2020

Геология И Геофизика Юга России

View full text Add to dashboard Cite

Ведущими факторами преобразования окружающей среды в регио- не являются угледобывающая и углеперерабатывающая промышленности. Под влиянием этих факторов формируется множество негативных последствий и, прежде всего, интенсивное загрязнение грунтовых вод. Цель исследований – оценить роль шахтных вод в управлении загрязненностью грунтовых вод в Вос- точном Донбассе. Методы исследования. Для решения поставленной задачи применены стандартные ме- тоды математической статистики, цифровая компьютерная классификационная технология АГАТ-2, метод оценки качества вод по суммарному показателю загрязненности. Выполнен детальный анализ закономер- ностей формирования химического состава и загрязненности шахтных и грунтовых вод в Восточном Дон- бассе. Шахтные воды содержат очень высокие концентрации многих компонентов, значительно превы- шающие ПДК. Результаты работы. Наибольшие концентрации отмечены по Fe и Mn, для которых превы- шения ПДК составляют сотни, а в отдельных случаях тысячи раз. Обычно превышение ПДК в десятки раз обнаружено для Al, Li, Be, Ni, Se, Cu и Zn. Из макрокомпонентов значительное загрязнение проявляется по концентрациям SO4, Na, Mg и M. В грунтовых водах наибольшую долю в загрязнение вод также вносят Fe и Mn, отмечается превышение ПДК по Al, Zn, Be, Li, Se, Cu, а также по SO4, Na, Mg и M. Сравнение списка компонентов загрязненности шахтных и грунтовых вод убедительно свидетельствует, что шахтные воды играют ведущую роль в управлении качеством грунтовых вод. Актуальность исследований заключается в том, что впервые для важного в промышленно-экономическом отношении региона РФ выполнена оценка качества шахтных вод и их влияния на загрязнение грунтовых по требованиям к ПДК вод в соответствии с нормативами США, ЕС и РФ. Очень высокий уровень загрязненности шахтных и грунтовых вод свиде- тельствует о настоятельной необходимости выполнения мониторинговых наблюдений, проведения мер по реабилитации состояния окружающей среды в регионе и совершенствования очистных технологий, в первую очередь, по уменьшению концентраций Fe, Mn и величины минерализации. Ключевые слова: шахтные, грунтовые воды, химический состав, показатель загрязненности, Вос- точный Донбасс Coal mining and coal-processing industries are the leading drivers of environmental transformation in the region. These factors are influenced by many negative effects and, above all, intense groundwater pollution. Aim of the research is to assess the role of mine water in the management of groundwater pollution in the Eastern Donbass. Methods. To solve the problem, standard methods of mathematical statistics, digital computer classification technology AGTA-2, and method of assessing water quality according to the total pollution indicator are used. A detailed analysis of the patterns of chemical composition and contamination of mine and groundwater in the Eastern Donbass has been carried out. Mine water contains very high concentrations of many components, much higher than MAC. Results. The highest concentrations are recorded by Fe and Mn, for which the excesses of MAC are hundreds, and in some cases thousands of times. Typically, the excess of MAC is found tenfold for Al, Li, Be, Ni, Se, Cu and Zn. Of the macro components, significant pollution is manifested by concentrations of SO4, Na, Mg and M. In groundwater, Fe and Mn also contribute to groundwater pollution, and there is an excess of MAC for Al, Zn, Be, Li, Se, Cu, as well as SO4, Na, Mg and M. The relevance of the research lies in the fact that for the first time for the industrial and economic region of the Russian Federation, an assessment of the quality of mine waters and their impact on groundwater pollution according to the requirements of the MAC of water in accordance with the regulations of the United States, the EU and the Russian Federation has been carried out. Comparison of the list of mine and groundwater pollution components strongly demonstrates that mine water plays a leading role in the management of groundwater quality. The very high level of mine and groundwater pollution demonstrates the urgent need to carry out monitoring observations, to rehabilitate the environment in the region and to improve treatment technologies, primarily to reduce the concentrations of Fe, Mn and mineralization

show abstract

Correlations between VIMS and RADAR data over the surface of Titan: Implications for Titan’s surface properties

Cited by 9 publications

References 49 publications

Titan as Revealed by the Cassini Radar

Titan as Revealed by the Cassini Radar

Cassini-Huygens’ exploration of the Saturn system: 13 years of discovery

The mine water in the management of groundwater pollution in the Eastern Donbass

Contact Info

Product

Resources

About