1 637 resources found

Goals: This experiment was performed to study product formation from stabilized Criegee intermediates (SCI) in the Isoprene + ozone under various relative humidity (RH)...

Goals: Determine atmospheric photooxidation pathways for ethyl acetate, specifically examine chemistry of CH3CH2C(O)OCH(O.)CH3 radical vs. T and O2 partial pressure Summary:...

Goals: Investigate SOA formation from D5 oxidation with DOS seeds with CIMS, SMPS, AMS. Summary: The siloxanol was the major gas-phase and particle-phase product with other...

Goals: Measure SOA yield of D5 Summary: This is the set of experiments performed with D5 where the RH was adjusted so that O3 made variable OH concentrations. This is half of...

These are year-month means on 2.5 degree grids derived from DS111.2, by DSS. Both surface and upper air. Bad grids found by Kevin Trenberth in NCAR Technical Note 373 are excluded.

Goals: Find SOA yield for octane + Cl under high NOx condition (NO and NO2 injected). Investigate volatility behavior based on 2D thermograms. Summary: Ammonium sulfate seed...

With the reduction in economic activities following the COVID19 pandemic outbreak in early 2020, most emissions of air pollutants (i.e., nitrogen oxides (NOx), carbon monoxide...

Goals: Observing OH-initiated m-xylene reactions under SOA surrogate and NOx environment. Summary: targets: 1.1 ppmC SOA surrogate + 1 ppmC H2O2 + 25 ppb NOx + 100 ppb m-xylene...

Goals: Observing NO-initiated isoprene reactions under SOA surrogate and NOx environment. Summary: Target: 1.1ppmC SOA surrogate, 25ppb NOx, 50 ppb isoprene (A) INSTRUMENTS:...

Goals: Investigate atmospheric fate of ethyl formate, specifically looking at the chemistry of the HC(O)OCH(O.)CH3 radical as a function of T and O2 partial pressure. Summary:...

Goals: Oxidize D3 using H2O2 as the oxidant precursor to promote RO2 radical reactions with HO2. Summary: The formate ester was the largest product detected, though many...

This dataset contains monthly profiles of temperature and zonal winds at stratospheric levels between 70mb and 10mb for the period from January 1953 to December 1988.

The Japanese 25-year Reanalysis (JRA-25) represents the first long-term global atmospheric reanalysis undertaken in Asia. Covering the period 1979-2004, it was completed using...

Goals: Photooxidation of toluene with initial OH and NO with step wise NO injection under black lights. Summary: Target: 80 ppb toluene + 1 ppm H2O2 + 20 ppb NO + step wise NO 5...

Goals: Photooxidation of ethylene with the existence of NO and Toluene Summary: Targets: ethylene 1ppm, NO 15ppb (both), toluene 300 ppb (A) INSTRUMENTS: GC1,2, SMPS, CEAS...

Goals: Prepare NAP SOA at 0 RH, with low NOx, and with NH3 Summary: Prepare NAP SOA at 0 RH, with low NOx, and with NH3 Organization: Nizkorodov Lab Lab Affiliation: University...

This dataset includes HadISST1 and HadSST2 from U.K. Hadley Centre. HadISST1 is a unique combination of monthly globally-complete fields of SST and sea ice concentration on a 1...

This dataset contains flight-level aircraft data collected during the GARP Atlantic Tropical Experiment (GATE) from commercial and research aircraft. The GATE period was from...

Goals: Measure SOA yield of D5 Summary: Performed in the Caltech Near Bag, continuous injection of NO at a rate of about 1 ppb per minute, initial NO of 82 ppb Organization:...

Goals: To characterize particulate organic nitrate generated from NO3 oxidation of a-pinene and understand its hydrolysis process. Summary: SOA including particulate organic...