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Simultaneous HONO measurements in and above a forest canopy: influence of turbulent exchange on mixing ratio differences
HONO measurements a forest canopy turbulent exchange ratio differences
2011/2/24
We have combined chemical and micrometeorological measurements to investigate the formation and distribution of HONO throughout a forest canopy. HONO was measured simultaneously at two heights, close ...
CO2 column-averaged volume mixing ratio derived over Tsukuba from measurements by commercial airlines
CO2 column-averaged volume mixing ratio Tsukuba commercial airlines
2010/8/25
Column-averaged volume mixing ratios of carbon dioxide (XCO2) during the period from January 2007 to May 2008 over Tsukuba, Japan, were derived using CO2 concentrations measured by Continuous CO2 Meas...
A single gas chromatograph for accurate atmospheric mixing ratio measurements of CO2,CH4,N2O,SF6 and CO
gas chromatograph atmospheric mixing ratio measurements CO2 CH4 N2O SF6 CO
2010/2/8
We present an adapted gas chromatograph capable of measuring simultaneously and semi-continuously the atmospheric mixing ratios of the greenhouse gases CO2, CH4, N2O and SF6 and the trace gas CO with ...
Effect of Mixing Ratio of Blast-Resistant Isogenic Lines on Rice Yield of the Multiline
Blast resistance Isogenic line Mixing ratio
2009/7/8
Yielding ability of multiline composed of the blast resistant isogenic lines (Pia, Pii, Pita-2 and Piz) and original line (+) was evaluated in a paddy field with severe blast epidemic (a pathogenic ra...
Rarity of upper-tropospheric low O3 mixing ratio events during MOZAIC flights
upper-tropospheric low O3 ratio events MOZAIC flights
2009/3/11
Only a few previous observations of very low O3 mixing ratios in the upper troposphere are available. The aim of this study was to examine the rich MOZAIC data set for more. Flights with at least 25 4...
Technical Note: Quantitative long-term measurements of VOC concentrations by PTR-MS – measurement, calibration, and volume mixing ratio calculation methods
VOC PTR-MS volume mixing ratio
2008/11/26
Proton transfer reaction mass spectrometry (PTR-MS) is a technique for online measurements of atmospheric concentrations, or volume mixing ratios, of volatile organic compounds (VOCs). This paper giv...