Sökning: "in situ radiometry"

Hittade 2 avhandlingar innehållade orden in situ radiometry.

  1. 1. Uncertainty measurements and validation of ocean colour data in optically complex waters

    Detta är en avhandling från Stockholm, Sweden : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Författare :José M. Beltrán-Abaunza; Stockholms universitet.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ocean colour validation; MERIS; in situ radiometry; water quality; CDOM; marin- och brackvattensekologi; Marine and Brackish Water Ecology;

    Sammanfattning : The thesis addresses validation activities associated with the use of in situ and satellite-based radiometers to assess water quality parameters, such as chlorophyll-a (Chl-a), total suspended matter (TSM) and coloured dissolved organic matter (CDOM- also known as yellow substances, YEL) in CDOM-dominated waters. In paper I, an inter-comparison of in situ radiometers is presented. LÄS MER

  2. 2. Retrieval of ocean surface winds and currents using satellite synthetic aperture radar and infrared radiometry

    Detta är en avhandling från Stockholm, Sweden : Department of Ecology, Environment and Plant Sciences, Stockholm University

    Författare :Gisela Carvajal; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface currents; infrared radiometry; synthetic aperture radar; surface winds; maximum cross correlation; wind direction;

    Sammanfattning : This thesis focuses on the development, analysis and evaluation of methods for the retrieval of ocean surface winds with synthetic aperture radar (SAR) and surface currents with infrared (IR) radiometer sensors. The SAR wind speed retrievals are based on geophysical model functions using wind directions obtained with two approaches. LÄS MER