Publication Date:
1996-05-10
Description:
The Galileo probe net flux radiometer measured radiation within Jupiter's atmosphere over the 125-kilometer altitude range between pressures of 0.44 bar and 14 bars. Evidence for the expected ammonia cloud was seen in solar and thermal channels down to 0.5 to 0.6 bar. Between 0.6 and 10 bars large thermal fluxes imply very low gaseous opacities and provide no evidence for a deep water cloud. Near 8 bars the water vapor abundance appears to be about 10 percent of what would be expected for a solar abundance of oxygen. Below 8 bars, measurements suggest an increasing water abundance with depth or a deep cloud layer. Ammonia appears to follow a significantly subsaturated profile above 3 bars. Unexpectedly high absorption of sunlight was found at wavelengths greater than 600 nanometers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sromovsky, L A -- Best, F A -- Collard, A D -- Fry, P M -- Revercomb, H E -- Freedman, R S -- Orton, G S -- Hayden, J L -- Tomasko, M G -- Lemmon, M T -- New York, N.Y. -- Science. 1996 May 10;272(5263):851-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Wisconsin, Madison 53706, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8629018" target="_blank"〉PubMed〈/a〉
Keywords:
Ammonia/*analysis
;
*Atmosphere
;
*Extraterrestrial Environment
;
*Jupiter
;
Oxygen/analysis
;
Pressure
;
Radiometry
;
Temperature
;
Water/*analysis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink