Sökning: "radiometer"

Visar resultat 1 - 5 av 18 uppsatser innehållade ordet radiometer.

  1. 1. Comparison of Coincident Ozone Profiles and the Role of the Polar Vortex in the Evolution of the Ozone Layer Above Kiruna, Sweden

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Kyriaki Blazaki; [2020]
    Nyckelord :;

    Sammanfattning : This study primarily focuses on comparing coincident ozone profiles, as well as investigating the relationship between the polar vortex and the changes in the ozone layer above Kiruna, Sweden (67.85N 20.22E) during the Arctic winters 2010/2011 and 2018/2019. LÄS MER

  2. 2. Disaggregating economic inequality from space

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Neija Maegaard Elvekjær; [2019]
    Nyckelord :Visible Infrared Imaging Radiometer Suite VIIRS ; night-time lights; Gross Domestic Product GDP ; economic inequality; regional inequality; spatial inequality; Gini coefficient; spatial scale; Social Sciences; Earth and Environmental Sciences;

    Sammanfattning : Reducing inequality is number 10 of the United Nations sustainable development goals. Inequality in society affect economic growth, development and poverty reduction, and through these indirectly affect environmental degradation, food security and other major problems facing society today. LÄS MER

  3. 3. Upgrading a groundbased 142 GHz microwave radiometer to higher sensitivity

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Emelie Siderud; [2016]
    Nyckelord :Atmospheric ozone; Radiometer; 142 GHz ozone line; Sensitivity;

    Sammanfattning : The accuracy of ozone measurements in the middle atmosphere is of great importance when determining its diurnal variation. A high time resolution of the measured data is desirable and depends on the sensitivity of the receiver used to detect the ozone. LÄS MER

  4. 4. Retrieval of Cloud Top Pressure

    Master-uppsats, Linköpings universitet/Institutionen för datavetenskapLinköpings universitet/Tekniska fakulteten

    Författare :Claudia Adok; [2016]
    Nyckelord :neural networks; multilayer perceptron; random forest regression; cloud top pressure; cloud top height;

    Sammanfattning : In this thesis the predictive models the multilayer perceptron and random forest are evaluated to predict cloud top pressure. The dataset used in this thesis contains brightness temperatures, reflectances and other useful variables to determine the cloud top pressure from the Advanced Very High Resolution Radiometer (AVHRR) instrument on the two satellites NOAA-17 and NOAA-18 during the time period 2006-2009. LÄS MER

  5. 5. SMOS satellite hardware anomaly prediction methods based on Earth radiation environment data sets

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Aleksi Walden; [2016]
    Nyckelord :SMOS; Soil Moisture and Ocean Salinity; satellite; MIRAS; Microwave Imaging Radiometer with Aperture Synthesis; ESAC; hardware anomaly; prediction; radiation environment;

    Sammanfattning : SMOS (Soil Moisture and Ocean Salinity) is ESA's Earth Explorer series satellite carrying the novel MIRAS (Microwave Imaging Radiometer with Aperture Synthesis) interferometric synthetic aperture radar. Its objective is monitoring and studying the planet's water cycle by following the changes in soil moisture levels and ocean surface salt concentrations on a global scale. LÄS MER