CO2 amount on Venus constrained by a criterion of topographic-greenhouse instability

Joji Hashimoto, Yutaka Abe, Sho Sasaki

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Which mechanism determines the planetary atmospheric inventories of various gases is an important problem. It has been suggested that Venus' atmospheric CO2 abundance is controlled or buffered by carbonation reaction on the surface (carbonate buffer). According to this hypothesis, the formation or decomposition of carbonate stabilizes atmospheric CO2 concentration. However, the amount of carbonate existing on the Venus' surface is not established yet. Using a stability analysis that combines the greenhouse effect, carbonation reaction, and topography, we place an upper limit to carbonate on Venus. This upper limit of carbonate is only about 4 bar of CO2 and is much smaller than the amount of CO2 in the atmosphere. This suggests that the present CO2 concentration in Venus' atmosphere is not controlled by the carbonation reaction but by the total abundance of CO2 in near surface layers.

Original languageEnglish
Pages (from-to)289-292
Number of pages4
JournalGeophysical Research Letters
Volume24
Issue number3
Publication statusPublished - 1997
Externally publishedYes

Fingerprint

greenhouses
Venus (planet)
Venus
carbonates
carbonate
Venus surface
Venus atmosphere
greenhouse effect
atmosphere
stability analysis
surface layer
surface layers
topography
buffers
decomposition
atmospheres
gases
gas

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

CO2 amount on Venus constrained by a criterion of topographic-greenhouse instability. / Hashimoto, Joji; Abe, Yutaka; Sasaki, Sho.

In: Geophysical Research Letters, Vol. 24, No. 3, 1997, p. 289-292.

Research output: Contribution to journalArticle

@article{f91b8c32a8f1409facf2b6110ddb24b6,
title = "CO2 amount on Venus constrained by a criterion of topographic-greenhouse instability",
abstract = "Which mechanism determines the planetary atmospheric inventories of various gases is an important problem. It has been suggested that Venus' atmospheric CO2 abundance is controlled or buffered by carbonation reaction on the surface (carbonate buffer). According to this hypothesis, the formation or decomposition of carbonate stabilizes atmospheric CO2 concentration. However, the amount of carbonate existing on the Venus' surface is not established yet. Using a stability analysis that combines the greenhouse effect, carbonation reaction, and topography, we place an upper limit to carbonate on Venus. This upper limit of carbonate is only about 4 bar of CO2 and is much smaller than the amount of CO2 in the atmosphere. This suggests that the present CO2 concentration in Venus' atmosphere is not controlled by the carbonation reaction but by the total abundance of CO2 in near surface layers.",
author = "Joji Hashimoto and Yutaka Abe and Sho Sasaki",
year = "1997",
language = "English",
volume = "24",
pages = "289--292",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "3",

}

TY - JOUR

T1 - CO2 amount on Venus constrained by a criterion of topographic-greenhouse instability

AU - Hashimoto, Joji

AU - Abe, Yutaka

AU - Sasaki, Sho

PY - 1997

Y1 - 1997

N2 - Which mechanism determines the planetary atmospheric inventories of various gases is an important problem. It has been suggested that Venus' atmospheric CO2 abundance is controlled or buffered by carbonation reaction on the surface (carbonate buffer). According to this hypothesis, the formation or decomposition of carbonate stabilizes atmospheric CO2 concentration. However, the amount of carbonate existing on the Venus' surface is not established yet. Using a stability analysis that combines the greenhouse effect, carbonation reaction, and topography, we place an upper limit to carbonate on Venus. This upper limit of carbonate is only about 4 bar of CO2 and is much smaller than the amount of CO2 in the atmosphere. This suggests that the present CO2 concentration in Venus' atmosphere is not controlled by the carbonation reaction but by the total abundance of CO2 in near surface layers.

AB - Which mechanism determines the planetary atmospheric inventories of various gases is an important problem. It has been suggested that Venus' atmospheric CO2 abundance is controlled or buffered by carbonation reaction on the surface (carbonate buffer). According to this hypothesis, the formation or decomposition of carbonate stabilizes atmospheric CO2 concentration. However, the amount of carbonate existing on the Venus' surface is not established yet. Using a stability analysis that combines the greenhouse effect, carbonation reaction, and topography, we place an upper limit to carbonate on Venus. This upper limit of carbonate is only about 4 bar of CO2 and is much smaller than the amount of CO2 in the atmosphere. This suggests that the present CO2 concentration in Venus' atmosphere is not controlled by the carbonation reaction but by the total abundance of CO2 in near surface layers.

UR - http://www.scopus.com/inward/record.url?scp=0031076329&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031076329&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0031076329

VL - 24

SP - 289

EP - 292

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 3

ER -