Total Ozone Trends in East Asia from Long-Term Satellite and Ground Observations

Long-term hmF2 trends in the Eurasian longitudinal sector from the ground-based ionosonde observations

The method earlier used for the foF2 long-term trends analysis is applied to reveal hmF2 long-term trends at 27 ionosonde stations in the European and Asian longitudinal sectors. Observed M(3000)F2 data for the last 3 solar cycles are used to derive hmF2 trends. The majority of the studied stations show significant hmF2 linear trends with a confidence level of at least 95% for the period after ...

Long-Term Trends Worldwide in Ambient NO2 Concentrations Inferred from Satellite Observations.

BACKGROUND Air pollution is associated with morbidity and premature mortality. Satellite remote sensing provides globally consistent decadal-scale observations of ambient nitrogen dioxide (NO2) pollution. OBJECTIVE We determined global population-weighted annual mean NO2 concentrations from 1996 through 2012. METHODS We used observations of NO2 tropospheric column densities from three satel...

Validation of Omi Total Ozone Using Ground-based Brewer Observations

Near-to-real time as well as “archive quality” Brewer total ozone observations, which are performed with well maintained and calibrated instruments over the Northern Hemisphere have been used for the validation of the total ozone column product of the Ozone Monitoring Instrument (OMI) aboard the NASA EOS-Aura satellite. During the commissioning phase of OMI, the near-to-real time ground-based d...

Lake level change and total water discharge in East Africa Rift Valley from satellite-based observations

Satellite observations of aerosol transport from East Asia to the Arctic: three case studies

Vertical profiles of aerosol extinction obtained with the CALIOP lidar onboard CALIPSO are used in conjunction with the GEOS-Chem chemical transport model and NOAA’s HYSPLIT trajectory model to document three aerosol export events from East Asia to the Arctic in the year 2007. During each of these events CALIOP sampled the pollution plumes multiple times over periods of five to seven days. Midl...