Matches in SemOpenAlex for { <https://semopenalex.org/work/W2003113429> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2003113429 endingPage "18661" @default.
- W2003113429 startingPage "18661" @default.
- W2003113429 abstract "Atmospheric hydrogen peroxide (H2O2) measurements at Summit, Greenland, in May–June, 1993 exhibited a diel variation, with afternoon highs typically 1–2 parts per billion by volume (ppbv) and nighttime lows about 0.5 ppbv lower. This variation closely followed that for temperature; specific humidity exhibited the same general trend. During a 17-day snowfall-free period, surface snow was accumulating H2O2, apparently from nighttime cocondensation of H2O and H2O2. Previous photochemical modeling (Neftel et al., 1995) suggests that daytime H2O2 should be about 1 ppbv, significantly lower than our measured values. Previous equilibrium partitioning measurements between ice and gas phase (Conklin et al., 1993) suggest that air in equilibrium with H2O2 concentrations measured in surface snow (15–18 μM) should have an H2O2 concentration 2–3 times what we measured 0.2–3.5 m above the snow surface. A simple eddy diffusion model, with vertical eddy diffusion coefficients calculated from balloon soundings, suggested that atmospheric H2O2 concentrations should be affected by any H2O2 degassed from surface snow. However, field measurements showed the absence of either high concentrations of H2O2 or a measurable concentration gradient between inlets 0.2 and 3 m above the snow. A surface resistance to degassing, that is, slow release of H2O2 from the ice matrix, is a plausible explanation for the differences between observations and modeled atmospheric profiles. Degassing of H2O2 at a rate below our detection limit would still influence measured atmospheric concentrations and help explain the difference between measurements and photochemical modeling. The cumulative evidence suggests that surface snow adjusts slowly to drops in atmospheric H2O2 concentration, over timescales of at least weeks. The H2O2 losses previously observed in pits sampled over more than 1 year are thought to have occurred later in the summer or fall, after the May–July field season." @default.
- W2003113429 created "2016-06-24" @default.
- W2003113429 creator A5029526446 @default.
- W2003113429 creator A5030206382 @default.
- W2003113429 creator A5031628573 @default.
- W2003113429 creator A5035774146 @default.
- W2003113429 creator A5047977606 @default.
- W2003113429 creator A5057133748 @default.
- W2003113429 creator A5061417765 @default.
- W2003113429 creator A5074738581 @default.
- W2003113429 creator A5076942604 @default.
- W2003113429 date "1995-01-01" @default.
- W2003113429 modified "2023-10-17" @default.
- W2003113429 title "Diel variations of H<sub>2</sub>O<sub>2</sub>in Greenland: A discussion of the cause and effect relationship" @default.
- W2003113429 cites W1616442363 @default.
- W2003113429 cites W1982819315 @default.
- W2003113429 cites W2031232154 @default.
- W2003113429 cites W203616061 @default.
- W2003113429 cites W2048232455 @default.
- W2003113429 cites W2054714137 @default.
- W2003113429 cites W2064260574 @default.
- W2003113429 cites W2084883495 @default.
- W2003113429 cites W2112331062 @default.
- W2003113429 cites W2176283348 @default.
- W2003113429 cites W63731096 @default.
- W2003113429 doi "https://doi.org/10.1029/95jd01841" @default.
- W2003113429 hasPublicationYear "1995" @default.
- W2003113429 type Work @default.
- W2003113429 sameAs 2003113429 @default.
- W2003113429 citedByCount "24" @default.
- W2003113429 countsByYear W20031134292012 @default.
- W2003113429 countsByYear W20031134292013 @default.
- W2003113429 crossrefType "journal-article" @default.
- W2003113429 hasAuthorship W2003113429A5029526446 @default.
- W2003113429 hasAuthorship W2003113429A5030206382 @default.
- W2003113429 hasAuthorship W2003113429A5031628573 @default.
- W2003113429 hasAuthorship W2003113429A5035774146 @default.
- W2003113429 hasAuthorship W2003113429A5047977606 @default.
- W2003113429 hasAuthorship W2003113429A5057133748 @default.
- W2003113429 hasAuthorship W2003113429A5061417765 @default.
- W2003113429 hasAuthorship W2003113429A5074738581 @default.
- W2003113429 hasAuthorship W2003113429A5076942604 @default.
- W2003113429 hasBestOaLocation W20031134292 @default.
- W2003113429 hasConcept C104196234 @default.
- W2003113429 hasConcept C111368507 @default.
- W2003113429 hasConcept C114793014 @default.
- W2003113429 hasConcept C121332964 @default.
- W2003113429 hasConcept C127313418 @default.
- W2003113429 hasConcept C153102810 @default.
- W2003113429 hasConcept C153294291 @default.
- W2003113429 hasConcept C162725370 @default.
- W2003113429 hasConcept C196558001 @default.
- W2003113429 hasConcept C197046000 @default.
- W2003113429 hasConcept C39432304 @default.
- W2003113429 hasConcept C49204034 @default.
- W2003113429 hasConcept C91586092 @default.
- W2003113429 hasConceptScore W2003113429C104196234 @default.
- W2003113429 hasConceptScore W2003113429C111368507 @default.
- W2003113429 hasConceptScore W2003113429C114793014 @default.
- W2003113429 hasConceptScore W2003113429C121332964 @default.
- W2003113429 hasConceptScore W2003113429C127313418 @default.
- W2003113429 hasConceptScore W2003113429C153102810 @default.
- W2003113429 hasConceptScore W2003113429C153294291 @default.
- W2003113429 hasConceptScore W2003113429C162725370 @default.
- W2003113429 hasConceptScore W2003113429C196558001 @default.
- W2003113429 hasConceptScore W2003113429C197046000 @default.
- W2003113429 hasConceptScore W2003113429C39432304 @default.
- W2003113429 hasConceptScore W2003113429C49204034 @default.
- W2003113429 hasConceptScore W2003113429C91586092 @default.
- W2003113429 hasIssue "D9" @default.
- W2003113429 hasLocation W20031134291 @default.
- W2003113429 hasLocation W20031134292 @default.
- W2003113429 hasOpenAccess W2003113429 @default.
- W2003113429 hasPrimaryLocation W20031134291 @default.
- W2003113429 hasRelatedWork W1975604784 @default.
- W2003113429 hasRelatedWork W1979915631 @default.
- W2003113429 hasRelatedWork W2064589744 @default.
- W2003113429 hasRelatedWork W2125421241 @default.
- W2003113429 hasRelatedWork W2142132314 @default.
- W2003113429 hasRelatedWork W2364219211 @default.
- W2003113429 hasRelatedWork W2391163016 @default.
- W2003113429 hasRelatedWork W2556151303 @default.
- W2003113429 hasRelatedWork W3136780051 @default.
- W2003113429 hasRelatedWork W4225827137 @default.
- W2003113429 hasVolume "100" @default.
- W2003113429 isParatext "false" @default.
- W2003113429 isRetracted "false" @default.
- W2003113429 magId "2003113429" @default.
- W2003113429 workType "article" @default.