Implications of Satellite OH Observations for Middle Atmospheric H 2 O and Ozone

Autor:	D. Offermann, Michael E. Summers, David E. Siskind, Robert R. Conway, Martin Riese, Darrell F. Strobel, Michael H. Stevens, James M. Russell, Peter Preusse
Rok vydání:	1997
Předmět:	Atmosphere chemistry.chemical_compound Multidisciplinary Altitude Ozone chemistry Stratopause Satellite Atmospheric sciences Occultation Stratosphere Mesosphere
Zdroj:	Science. 277:1967-1970
ISSN:	1095-9203 0036-8075
DOI:	10.1126/science.277.5334.1967
Popis:	Satellite observations by the Middle Atmosphere High Resolution Spectrograph Investigation (MAHRSI) have produced global measurements of hydroxyl (OH) in the atmosphere. These observations reveal a sharp peak in OH density near an altitude of 65 to 70 km and are thus consistent with observations from the Halogen Occultation Experiment (HALOE) on the NASA Upper Atmosphere Research Satellite (UARS), which showed an unexplained H 2 O layer at the same level. Analysis of stratopause (about 50 kilometers) OH measurements and coincident ozone observations from the Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) experiment reveals that the catalytic loss of ozone attributable to odd-hydrogen chemistry is less than that predicted with standard chemistry. Thus, the dominant portion of the ozone deficit problem in standard models is a consequence of overestimation of the OH density in the upper stratosphere and lower mesosphere.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6e8655204eaa91b6f74c25f31931e940 https://doi.org/10.1126/science.277.5334.1967 Zobrazit plný text záznamu