Essays about: "UTC"

Showing result 1 - 5 of 7 essays containing the word UTC.

  1. 1. Fragmentation in graupel snow collisions

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Martanda Gautam; [2022]
    Keywords : Ecosystem Analysis; Clouds; Snow; Graupel; SIP; Fragmentation; CKE; Rime Fraction; Earth and Environmental Sciences;

    Abstract : Aircraft observations of precipitating clouds with cloud top temperatures higher than -38°C have revealed that Secondary Ice Production (SIP) is responsible for presence of majority of ice particles. One such SIP mechanism is fragmentation via collisions between ice particles. READ MORE

  3. 2. Synchronization of Acoustic Sensors in a Wireless Network

    University essay from Linköpings universitet/Datorteknik

    Author : Malin Johansson; [2019]
    Keywords : Synchronization; GNSS; GPS; WSN;

    Abstract : Geographically distributed networks of acoustic sensors can be used to identify and localize the origin of acoustic phenomena. One area of use is localization of snipers by detecting the bullet's shock wave and the muzzle blast. READ MORE

  4. 3. Investigation of Aerosol Influence on Operational Weather Forecasts

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Author : Nellie Edvardsson; [2016]
    Keywords : Sea salt aerosols; aerosols; numerical weather prediction; NWP; HARMONIE; weather forecasts; Physics and Astronomy;

    Abstract : Low precipitation events are difficult to predict due to the many processes taking part in formation of precipitation. An additional challenge is that many of the processes act on a smaller scale than what weather models can resolve. The aerosol impact on the state of the atmosphere is an example of one of these processes. READ MORE

  5. 4. RETRIEVING THE HEIGHT OF THE PLANETARY BOUNDARY LAYER OVER STOCKHOLM FROM LIDAR MEASUREMENTS

    University essay from Lunds universitet/Fysiska institutionen

    Author : Ewa Johansson; [2013]
    Keywords : Planetary Boundary Layer; Meteorology; weather forecast; Raman LIDAR; Physics and Astronomy;

    Abstract : LIDAR data from the Polly system on the roof of the Arrhenius laboratory at Stockholm University are used to determine the planetary boundary layers (PBL) height distribution. To this end, a wavelet covariance transform method is employed to analyze LIDAR measured data signals from the years 2011-2012. READ MORE

  6. 5. Spatial correlation between lightning strikes and whistler observations

    University essay from KTH/Rymd- och plasmafysik

    Author : Jonas Öster; [2008]
    Keywords : ;

    Abstract : A whistler wave is a Very Low frequency (VLF) trace that obtains its characteristics from dispersive propagation in the magnetosphere. Field-aligned ducts of enhanced plasma density ensure the propagation from one hemisphere to the other. READ MORE