Matches in SemOpenAlex for { <https://semopenalex.org/work/W2017559311> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W2017559311 endingPage "280" @default.
- W2017559311 startingPage "272" @default.
- W2017559311 abstract "Measurements in a giant expansion chamber show that the size of newly formed cloud droplets depends critically upon the cleanliness of the processed air. Droplets formed in ordinary air are small, but droplets large enough to precipitate are immediately formed by condensation whenever the condensation-nuclei density is sufficiently reduced. The product of mean drop mass and the activated nuclei density approximates the available free water per unit volume. Cloud droplets formed from polluted surface air are usually too small to precipitate, but large droplets formed overhead by condensation in sufficiently clean air may fall through the polluted cloud and initiate rain through association processes. Since the activated nuclei density is normally observed to decrease with increasing altitude, the probability of generating droplets sufficiently large to initiate rain increases as the vertical development of a cloud system increases. The population densities of large cloud droplets normally observed near the tops of precipitating clouds may be explained in terms of an overlying parcel of cooled air that is initially relatively free of nuclei. Since pollution is swept out of the atmosphere by diffusion onto cloud droplets, and by droplet movement, it is suggested that periods of general cloudiness and precipitation reduce the original nuclei density and permit the subsequently formed droplets to grow still larger, thus increasing the probability of appreciable precipitation. The rain producing cycle is, therefore, equipped with a feed-back or regenerative mechanism which normally proceeds, in a given mass of air, until the air is appreciably desiccated. Condensation nuclei as well as water vapor normally accumulate simultaneously in fair weather. The presence of nuclei may delay the initiation of precipitation until sufficient vertical instability can be established to lift or cool the relatively clean overlying layers. The precipitation cycle may then be re-established. The investigation shows that rain may be formed directly from the vapor in clean air, without the production of clouds." @default.
- W2017559311 created "2016-06-24" @default.
- W2017559311 creator A5047130524 @default.
- W2017559311 creator A5076525419 @default.
- W2017559311 date "1957-06-01" @default.
- W2017559311 modified "2023-10-14" @default.
- W2017559311 title "AN EXPERIMENTAL INVESTIGATION OF THE EFFECT OF AIR POLLUTION ON THE INITIATION OF RAIN" @default.
- W2017559311 doi "https://doi.org/10.1175/1520-0469(1957)014<0272:aeiote>2.0.co;2" @default.
- W2017559311 hasPublicationYear "1957" @default.
- W2017559311 type Work @default.
- W2017559311 sameAs 2017559311 @default.
- W2017559311 citedByCount "118" @default.
- W2017559311 countsByYear W20175593112012 @default.
- W2017559311 countsByYear W20175593112013 @default.
- W2017559311 countsByYear W20175593112014 @default.
- W2017559311 countsByYear W20175593112015 @default.
- W2017559311 countsByYear W20175593112016 @default.
- W2017559311 countsByYear W20175593112017 @default.
- W2017559311 countsByYear W20175593112018 @default.
- W2017559311 countsByYear W20175593112019 @default.
- W2017559311 countsByYear W20175593112020 @default.
- W2017559311 countsByYear W20175593112021 @default.
- W2017559311 countsByYear W20175593112022 @default.
- W2017559311 crossrefType "journal-article" @default.
- W2017559311 hasAuthorship W2017559311A5047130524 @default.
- W2017559311 hasAuthorship W2017559311A5076525419 @default.
- W2017559311 hasBestOaLocation W20175593111 @default.
- W2017559311 hasConcept C107054158 @default.
- W2017559311 hasConcept C108036090 @default.
- W2017559311 hasConcept C121332964 @default.
- W2017559311 hasConcept C153294291 @default.
- W2017559311 hasConcept C185544564 @default.
- W2017559311 hasConcept C185592680 @default.
- W2017559311 hasConcept C200093464 @default.
- W2017559311 hasConcept C2779345167 @default.
- W2017559311 hasConcept C2781345722 @default.
- W2017559311 hasConcept C33332676 @default.
- W2017559311 hasConcept C39432304 @default.
- W2017559311 hasConcept C41008148 @default.
- W2017559311 hasConcept C76155785 @default.
- W2017559311 hasConcept C91586092 @default.
- W2017559311 hasConceptScore W2017559311C107054158 @default.
- W2017559311 hasConceptScore W2017559311C108036090 @default.
- W2017559311 hasConceptScore W2017559311C121332964 @default.
- W2017559311 hasConceptScore W2017559311C153294291 @default.
- W2017559311 hasConceptScore W2017559311C185544564 @default.
- W2017559311 hasConceptScore W2017559311C185592680 @default.
- W2017559311 hasConceptScore W2017559311C200093464 @default.
- W2017559311 hasConceptScore W2017559311C2779345167 @default.
- W2017559311 hasConceptScore W2017559311C2781345722 @default.
- W2017559311 hasConceptScore W2017559311C33332676 @default.
- W2017559311 hasConceptScore W2017559311C39432304 @default.
- W2017559311 hasConceptScore W2017559311C41008148 @default.
- W2017559311 hasConceptScore W2017559311C76155785 @default.
- W2017559311 hasConceptScore W2017559311C91586092 @default.
- W2017559311 hasIssue "3" @default.
- W2017559311 hasLocation W20175593111 @default.
- W2017559311 hasOpenAccess W2017559311 @default.
- W2017559311 hasPrimaryLocation W20175593111 @default.
- W2017559311 hasRelatedWork W1996475080 @default.
- W2017559311 hasRelatedWork W2000182676 @default.
- W2017559311 hasRelatedWork W2023235228 @default.
- W2017559311 hasRelatedWork W2047832091 @default.
- W2017559311 hasRelatedWork W2092874025 @default.
- W2017559311 hasRelatedWork W2100388561 @default.
- W2017559311 hasRelatedWork W2253369061 @default.
- W2017559311 hasRelatedWork W2605993995 @default.
- W2017559311 hasRelatedWork W3196088787 @default.
- W2017559311 hasRelatedWork W4377247768 @default.
- W2017559311 hasVolume "14" @default.
- W2017559311 isParatext "false" @default.
- W2017559311 isRetracted "false" @default.
- W2017559311 magId "2017559311" @default.
- W2017559311 workType "article" @default.