6,244 research outputs found

    Improving the altimetric rain record from Jason-1 & Jason-2

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    Dual-frequency rain-flagging has long been a standard part of altimetric data analysis, both for quality control of the data and for the study of rain itself, because altimeters can provide a finer spatial sampling of rain than can passive microwave instruments. However, there have been many varied implementations, using different records of the surface backscatter and different thresholds. This paper compares four different measures available for the recently-launched Jason-2. The evaluation compares these measures against clearly desired properties, finding that in most cases the adjusted backscatter and that from the ice retracker perform much better than that recommended in the users' handbook. The adjusted backscatter measure also provides a much better link to observations from Jason-1, opening up a much longer period for consistent rain investigations, and enabling greatly improved analysis of the short-scale variability of precipitation. Initial analysis shows that although the spatial and temporal gradients of backscatter increase at very low winds, the spatial gradients in rain attenuation are concentrated where rainfall is greatest, whilst the temporal changes have a simple broad latitudinal pattern

    Jason Peters Sumerian Column

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    Sumerian Column from the Jason Peters: Refraction exhibition at the Thomas J. Walsh Art Gallery, April 24-June 27, 2014.https://digitalcommons.fairfield.edu/peters-images/1003/thumbnail.jp

    Jason Peters Attempting Neoplatonism

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    Attempting Neoplatonism from the Jason Peters: Refraction exhibition at the Thomas J. Walsh Art Gallery, April 24-June 27, 2014.https://digitalcommons.fairfield.edu/peters-images/1001/thumbnail.jp

    Jason Peters: Refraction Bookmark

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    Bookmark for the Jason Peters: Refraction exhibition at the Thomas J. Walsh Art Gallery, April 24 - June 27, 2014.https://digitalcommons.fairfield.edu/peters-ephemera/1001/thumbnail.jp

    Jason Peters The Bond of Five Joys

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    The Bond of Five Joys from the Jason Peters: Refraction exhibition at the Thomas J. Walsh Art Gallery, April 24 - June 27, 2014.https://digitalcommons.fairfield.edu/peters-images/1004/thumbnail.jp

    Jason Gant, Des Walsh, Charlie Walsh heading to the boat

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    I airbrushed Des and Jason out of this photo and used it at dad's wake.Individuals photographed, if any, have been identified within the title from left to right

    Jason Peters: Refraction Opening Reception Invitation

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    Opening reception invitation for the Jason Peters: Refraction exhibition at the Thomas J. Walsh Art Gallery, April 24 - June 27, 2014.https://digitalcommons.fairfield.edu/peters-ephemera/1002/thumbnail.jp

    Jason Peters The Bond of Five Joys (detail)

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    The Bond of Five Joys (detail) from the Jason Peters: Refraction exhibition at the Thomas J. Walsh Art Gallery, April 24 - June 27, 2014.https://digitalcommons.fairfield.edu/peters-images/1002/thumbnail.jp

    Jason Bond Family History

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    Jason Bond authored this family history as part of the course requirements for HIST 550/700 Your Family in History offered online in Fall 2017 and was submitted to the Pittsburg State University Digital Commons. Please contact the author directly with any questions or comments: [email protected]

    Jason Peters: Refraction Brochure

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    Brochure for the Jason Peters: Refraction exhibition at the Thomas J. Walsh Art Gallery, April 24 - June 27, 2014.https://digitalcommons.fairfield.edu/peters-ephemera/1003/thumbnail.jp
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