Heather Guy authored and/or contributed to the following articles/publications.
This study presents the first full annual cycle (2019–2020) of ambient surface aerosol particle number concentration measurements (condensation nuclei > 20 nm, N20) collected at Summit Station (Summit), in the centre of the Greenland Ice Sheet (72.58∘ N, −38.45∘ E; 3250 ma.s.l.). The mean surface concentration in 2019 was 129 cm−3, with the 6 h ...
Institution National Oceanic and Atmospheric Administration - NOAA
Passive ground-based remote sensing of radiation fog
Accurate boundary layer temperature and humidity profiles are crucial for successful forecasting of fog, and accurate retrievals of liquid water path are important for understanding the climatological significance of fog. Passive ground-based remote sensing systems such as microwave radiometers (MWRs) that have multiple channels between 22–31 GH...
Institution National Oceanic and Atmospheric Administration - NOAA
Observations of Fog-Aerosol Interactions Over Central Greenland
Supercooled fogs can have an important radiative impact at the surface of the Greenland Ice Sheet, but they are difficult to detect and our understanding of the factors that control their lifetime and radiative properties is limited by a lack of observations. This study demonstrates that spectrally resolved measurements of downwelling longwave r...
Institution National Oceanic and Atmospheric Administration - NOAA