Sökning: "SNOE"

Hittade 2 avhandlingar innehållade ordet SNOE.

  1. 1. Solar Forcing of Nitric Oxide in the Upper Atmosphere

    Författare :Koen Hendrickx; Linda Megner; Jörg Gumbel; Bernd Funke; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nitric oxide; NO; mesosphere; lower thermosphere; MLT; energetic particle precipitation; EPP; medium energy electrons; MEE; SOFIE; SNOE; WACCM; POES; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Sammanfattning : The forcing of the Sun on Earth's atmosphere manifests itself via solar radiation and energetic particle precipitation (EPP), which variations are most noticeable in the upper regions of the atmosphere. A key species in the lower thermosphere, which is influenced by solar forcing, is nitric oxide (NO). LÄS MER

  3. 2. Empirical Modeling of Solar Induced Variations of Nitric Oxide in the Upper Mesosphere and Lower Thermosphere

    Författare :Joonas Kiviranta; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; mesosphere; nitric oxide; Odin; thermosphere; empirical modeling; SANOMA;

    Sammanfattning : Nitric Oxide (NO) is produced by solar photolysis and auroral activity in the upper mesosphere and lower thermosphere region and can, via transport processes, eventually impact the ozone layer in the stratosphere. This thesis uses measurements of NO taken between 2004 and 2016 by the Odin Sub Millimetre Radiometer (SMR) to build an empirical model which links the prevailing solar and auroral conditions with the measured number density of NO. LÄS MER