搜索结果: 1-15 共查到“大气化学 Formaldehyde”相关记录16条 . 查询时间(0.171 秒)
Observations of elevated formaldehyde over a forest canopy suggest missing sources from rapid oxidation of arboreal hydrocarbons
elevated formaldehyde a forest canopy suggest rapid oxidation arboreal hydrocarbons
2010/9/21
To better understand the processing of biogenic VOCs (BVOCs) in the pine forests of the US Sierra Nevada, we measured HCHO at Blodgett Research Station using Quantum Cascade Laser Spectroscopy (QCLS) ...
Pressure dependence of the deuterium isotope effect in the photolysis of formaldehyde by ultraviolet light
the deuterium isotope effect the photolysis of formaldehyde ultraviolet light
2010/8/12
The pressure dependence of the relative photolysis rate of HCHO vs. HCDO has been investigated for the first time, using a photochemical reactor at the University of Copenhagen. The dissociation of HC...
Formaldehyde and its relation to CO，PAN，and SO2 in the Houston-Galveston airshed
Formaldehyde CO PAN SO2 Houston-Galveston airshed
2010/3/16
The Houston-Galveston Airshed (HGA) is one of the major metropolitan areas in the US that is classified as a nonattainment area of federal ozone standards. Formaldehyde (HCHO) is a key species in unde...
Ground-based FTIR and MAX-DOAS observations of formaldehyde at Réunion Island and comparisons with satellite and model data
Ground-based FTIR MAX-DOAS observations formaldehyde Réunion Island
2009/12/31
Formaldehyde (HCHO) columns have been retrieved from ground-based Fourier transform infrared (FTIR) campaign measurements in 2004 and 2007 and from UV-Visible MAX-DOAS measurements in 2004–2005 at the...
On the distribution of formaldehyde in the western Po-Valley, Italy, during FORMAT 2002/2003
formaldehyde western Po-Valley Italy
2009/12/31
Formaldehyde was measured in the area of Milano, Italy, during the 2002 and 2003 FORMAT campaigns at three ground field sites and from an ultralight aircraft. The horizontal distributions show a stron...
Long-term tropospheric formaldehyde concentrations deduced from ground-based fourier transform solar infrared measurements
Long-term tropospheric formaldehyde concentrations ground-based fourier transform solar infrared measurements
2009/9/27
We report a 13-year (1992–2005) dataset of total column measurements of formaldehyde (HCHO) over Lauder, New Zealand, inferred from solar infrared spectra measured using a high-resolution Fourier Tran...
Global emissions of non-methane hydrocarbons deduced from SCIAMACHY formaldehyde columns through 2003–2006
Global emissions non-methane hydrocarbons SCIAMACHY formaldehyde columns
2009/6/16
Formaldehyde columns retrieved from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography/Chemistry (SCIAMACHY) instrument onboard ENVISAT satellite through 2003 to 2006 are used a...
SCIAMACHY formaldehyde observations: constraint for isoprene emission estimates over Europe?
SCIAMACHY formaldehyde isoprene emission Europe
2009/3/13
Formaldehyde (HCHO) is an important intermediate compound in the degradation of volatile organic compounds (VOCs) in the troposphere. Sources of HCHO are largely dominated by its secondary production ...
Formaldehyde over the eastern Mediterranean during MINOS: Comparison of airborne in-situ measurements with 3D-model results
Formaldehyde eastern Mediterranean MINOS
2009/3/11
Formaldehyde (HCHO) is an important intermediate product in the photochemical degradation of methane and non-methane volatile organic compounds. In August 2001, airborne formaldehyde measurements base...
Atmospheric methanol measurement using selective catalytic methanol to formaldehyde conversion
Atmospheric methanol selective catalytic methanol formaldehyde conversion
2009/2/18
A novel atmospheric methanol measurement technique, employing selective gas-phase catalytic conversion of methanol to formaldehyde followed by detection of the formaldehyde product, has been developed...
MAX-DOAS measurements of formaldehyde in the Po-Valley
MAX-DOAS measurements formaldehyde Po-Valley
2009/2/8
During the first measurement campaign of the EU FORMAT project in summer 2002 near Milan, northern Italy, ground-based scattered light differential optical absorption spectroscopy (DOAS) measurements ...
Intercomparison of four different in-situ techniques for ambient formaldehyde measurements in urban air
four different in-situ techniques ambient formaldehyde measurements urban air
2009/1/14
Results from an intercomparison of several currently used in-situ techniques for the measurement of atmospheric formaldehyde (CH2O) are presented. The measurements were carried out at Bresso, an urban...
Photochemical modelling in the Po basin with focus on formaldehyde and ozone
Photochemical modelling formaldehyde ozone
2008/11/27
As part of the EU project FORMAT (Formaldehyde as a Tracer of Oxidation in the Troposphere), a field campaign was carried out in the vicinity of Milan during the summer of 2002. Results from a 3-D reg...
Twelve years of global observations of formaldehyde in the troposphere using GOME and SCIAMACHY sensors
formaldehyde troposphere GOME SCIAMACHY sensors
2008/11/17
This work presents global tropospheric formaldehyde columns retrieved from near-UV radiance measurements performed by the GOME instrument onboard ERS-2 since 1995, and by SCIAMACHY, in operation on E...
Measurement and interpretation of gas phase formaldehyde concentrations obtained during the CHABLIS campaign in coastal Antarctica
formaldehyde CHABLIS coastal Antarctica
2008/11/13
Gas phase formaldehyde concentrations were measured during the 2004–2005 CHABLIS campaign at Halley research station, Antarctica. Data coverage span from May 2004 through to January 2005, thus capturi...