Cover for Volume.13, No.2

Effect of surface BRDF of various land cover types on geostationary observations of tropospheric NO2

We investigated the effect of surface reflectance anisotropy, bidirectional reflectance distribution function (BRDF), on satellite retrievals of tropospheric NO2. We assume the geometry of geostationary measurements over Tokyo, which is one of the worst air-polluted regions in East Asia. We calculated air mass factors (AMF) and box AMFs (BAMF) for tropospheric NO2 to evaluate the effect of BRDF...

Comparing GOME NO2 columns with ground-based NO2 profiles

Comparison of GOME tropospheric NO2 columns with NO2 profiles deduced from ground-based in situ measurements D. Schaub, K. F. Boersma, J. W. Kaiser, A. K. Weiss, D. Folini, H. J. Eskes, and B. Buchmann Swiss Federal Institute for Materials Science and Technology (Empa), Ueberlandstrasse 129, CH-8600 Duebendorf, Switzerland Royal Netherlands Meteorological Institute (KNMI), P.O. Box 201, 3730 AE...

Cover for Volume.13, No.4

Cover for Volume.13, No.3

Cover and information for Summer School

Bacterium-based NO2- biosensor for environmental applications.

A sensitive NO2- biosensor that is based on bacterial reduction of NO2- to N2O and subsequent detection of the N2O by a built-in electrochemical N2O sensor was developed. Four different denitrifying organisms lacking NO3- reductase activity were assessed for use in the biosensor. The relevant physiological aspects examined included denitrifying characteristics, growth rate, NO2- tolerance, and ...