Browsing Research publications by Author "Nicoll, K.A."

Now showing items 1-5 of 5

    • Atmospheric dust charging, vertical profiles, and optical properties measured in the Arabian Peninsula during the DREAME campaign 

      Ulanowski, Joseph; Sabbah, Ismail; Harrison, R.G.; Nicoll, K.A.; Hirst, Edwin; Kaye, Paul H.; Al-Abbadi, Naif; Rogers, George (2010)
      Polarimetric observations of atmospheric Saharan dust over the Canary Islands have provided strong evidence for the presence of vertically aligned particles. The alignment was thought to be due to the electric field present ...

    • Measurements of atmospheric volcanic ash using an aerosol radiosonde 

      Ulanowski, Joseph; Harrison, R.G.; Nicoll, K.A. (2010)
      A low-cost, miniature aerosol particle counter has been developed, intended for use with balloon-borne radiosondes. The counter provides a size distribution in five size bins and is interfaced to a Vaisala RS92 radiosonde, ...

    • Observations of Saharan dust layer electrification 

      Nicoll, K.A.; Harrison, R.G.; Ulanowski, Z. (2011)
      Electrification of atmospheric dust influences the coagulation, wet removal and fall speeds of dust particles. Alignment of dust particles can also occur in fair weather atmospheric electrical conditions if the particles ...

    • Radiosonde aerosol counter for vertical profiling of atmospheric dust 

      Ulanowski, Joseph; Hirst, Edwin; Kaye, Paul H.; Harrison, R.G.; Nicoll, K.A.; Rogers, George (2010)
      A low-cost, miniature aerosol particle counter has been developed, intended for use with balloon-borne meteorological radiosondes. It is particularly suitable for airborne mineral dust measurements. Ambient air is drawn ...

    • Self-charging of the Eyjafjallajokull volcanic ash plume 

      Harrison, R.G.; Nicoll, K.A.; Ulanowski, Z.; Mather, T.A. (2010)
      Volcanic plumes generate lightning from the electrification of plume particles. Volcanic plume charging at over 1200 km from its source was observed from in situ balloon sampling of the April 2010 Eyjafjallajökull plume ...