Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Daily ozone patterns and AOT40 index on the East Coast of the Iberian Peninsula
Autore:
Sanz, MJ; Carratala, A; Mantilla, E; Dieguez, JJ; Millan, M;
Indirizzi:
Fdn CEAM, Valencia 46980, Spain Fdn CEAM Valencia Spain 46980Fdn CEAM, Valencia 46980, Spain
Titolo Testata:
PHYSICS AND CHEMISTRY OF THE EARTH PART C-SOLAR-TERRESTIAL AND PLANETARY SCIENCE
fascicolo: 5, volume: 24, anno: 1999,
pagine: 491 - 494
SICI:
1464-1917(1999)24:5<491:DOPAAI>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
RESEARCH PROJECTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Carratala, A Fdn CEAM, Parque Tecnol C-4,Sector Oeste, Valencia 46980, Spain Fdn CEAM Parque Tecnol C-4,Sector Oeste Valencia Spain 46980
Citazione:
M.J. Sanz et al., "Daily ozone patterns and AOT40 index on the East Coast of the Iberian Peninsula", PHYS CH P C, 24(5), 1999, pp. 491-494

Abstract

The results from the Valencian Community air quality network show that within a natural pathway of air mass transport (e.g. a valley) three differentO-3 diurnal patterns are clearly distinguished: high elevation (I-IE), mid-elevation (ME) and coastal sites (CE). HE are characterised by maintainingan almost constant high O-3 level throughout the day (no diurnal cycle). CE have maximum levels coinciding with daylight hours and close-to-zero O-3 levels at night (diurnal cycle). At ME the maximum values occur in the daylight hours; however, O-3 levels never drop to zero. These different patterns occur within a spatial range of 50 to 60 Km,which implies a huge spatial variability in the area, and may strongly affect the values of several indices, e.g. the AOT40. Thus, AOT40 indices for 3 months are calculated as a running value through the year and compared for the different O-3 patterns. Also, several daylight windows have been applied in the AOT40 calculations in order to check the sensitivity of the index to the daylight window choice and to the different daily ozone patterns, compared to the AOT40 calculated for hours with radiation>50W/m(2) (real daylight period) and to the total exposure dose (TED, 24 h). It has been concluded that most windows estimate up to 90% of the TED in CE, and the estimations drop below 50% of the TED in non-diurnal cycle sites. This could be of importance for species whoseperiod of stomatal conductance do not correspond to the daylight hours. (C) 1999 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 13:40:14