Data to Support 'Persistent cloud cover over mega-cities linked to surface heat release'

"Persistent cloud cover over mega-cities linked to surface heat release
by Theeuwes et al., 2019 NPJ Climate and atmospheric science

HRV_london_landuse.txt

• HRV processed time series of cloud fractions [-] over each land use type (pixels have to be 100% of one land use class)
  • "high" - forest/high vegetation 
  • "low" - low vegetation
  • "urban" - urban areas 
  • "water" - water bodies for London domain.

HRV_paris_landuse.txt -

• HRV processed time series of cloud fractions over each land use type (pixels have to be 100% of one land use class)
  • "high" - forest/high vegetation,
  • "low" - low vegetation,
  • "urban" - urban areas for Paris domain.

"london_CBH.csv" -

• Cloud base heights ("CBH_L") [m] from CL31 ceilometer at London site (Marylebone road) and logical array whether it is clear or clouds are observed in the 15-min period "clear_L, cloudy_L"

"chilbolton_CBH.csv" -

• Cloud base heights ("CBH_C") [m] from CL75K ceilometer at Chilbolton site and logical array whether it is clear or clouds are observed in the 15-min period "clear_C, cloudy_C"

raw data: doi:10.5285/1aa2df5a-798b-46c7-b74a-421f9ca0aa82

"london_met.csv" -

• Data from meteorological measurements at London (Kings College London site):
  • "DIP_L" - dew point depression (air temperature - dew point temperature) [K],      
  • "RR_L" - precipitation [mm],
  • "T_L" - absolute air temperature [K],
  • "Td_L" - dew point temperature [K].

"chilbolton_met.csv" -

• Data from meteorological measurements at Chilbolton:
  • "DIP_C" - dew point depression (air temperature - dew point temperature) [K],
  • "T_C" - absolute air temperature [K],
  • "Td_C" - dew point temperature [K].

"london_fluxes.csv"

• - Kinematic sensible ("wth_L" [K m s-1]) and latent heat ("wq_L" [kg kg-1 m s-1]) fluxes at London (Kings College London site).

"chilbolton_fluxes.csv"

• - Kinematic sensible ("wth_C" [K m s-1]) and latent heat ("wq_C" [kg kg-1 m s-1]) fluxes at Chilbolton.

"2011_chil_lidarwstats.nc"

• - Hourly statistics of the LiDAR stare data for Chilbolton site. Vertical velocity variance corrected.

Note: all Chilbolton raw data: http://catalogue.ceda.ac.uk/uuid/7cbc3fc19bfa037a48ba4cba4b93544d