Seasonal variations of hydrogen peroxide and water vapor on Mars: Further indications of heterogeneous chemistry
We have completed our seasonal monitoring of hydrogen peroxide and water vapor on Mars using ground-based thermal imaging spectroscopy, by observing the planet in March 2014, when water vapor is maximum, and July 2014, when, according to photochemical models, hydrogen peroxide is expected to be maxi...
Gespeichert in:
Veröffentlicht in: | Astronomy and astrophysics (Berlin) 2015-06, Vol.578, p.A127 |
---|---|
Hauptverfasser: | , , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | |
---|---|
container_issue | |
container_start_page | A127 |
container_title | Astronomy and astrophysics (Berlin) |
container_volume | 578 |
creator | Encrenaz, T. Greathouse, T. K. Lefèvre, F. Montmessin, F. Forget, F. Fouchet, T. DeWitt, C. Richter, M. J. Lacy, J. H. Bézard, B. Atreya, S. K. |
description | We have completed our seasonal monitoring of hydrogen peroxide and water vapor on Mars using ground-based thermal imaging spectroscopy, by observing the planet in March 2014, when water vapor is maximum, and July 2014, when, according to photochemical models, hydrogen peroxide is expected to be maximum. Data have been obtained with the Texas Echelon Cross Echelle Spectrograph (TEXES) mounted at the 3 m–Infrared Telescope Facility (IRTF) at Maunakea Observatory. Maps of HDO and H2O2 have been obtained using line depth ratios of weak transitions of HDO and H2O2 divided by CO2. The retrieved maps of H2O2 are in good agreement with predictions including a chemical transport model, for both the March data (maximum water vapor) and the July data (maximum hydrogen peroxide). The retrieved maps of HDO are compared with simulations by Montmessin et al. (2005, J. Geophys. Res., 110, 03006) and H2O maps are inferred assuming a mean martian D/H ratio of 5 times the terrestrial value. For regions of maximum values of H2O and H2O2, we derive, for March 1 2014 (Ls = 96°), H2O2 = 20+/−7 ppbv, HDO = 450 +/−75 ppbv (45 +/−8 pr-nm), and for July 3, 2014 (Ls = 156°), H2O2 = 30+/−7 ppbv, HDO = 375+/−70 ppbv (22+/−3 pr-nm). In addition, the new observations are compared with LMD global climate model results and we favor simulations of H2O2 including heterogeneous reactions on water-ice clouds. |
doi_str_mv | 10.1051/0004-6361/201425448 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1855395564</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1855395564</sourcerecordid><originalsourceid>FETCH-LOGICAL-c464t-5150e996c50d806caf5501000374abfc2da53668106614d6e795d04beb1bbe133</originalsourceid><addsrcrecordid>eNqNkU9PwzAMxSMEEmPwCbjkyKXMaf605QYT25CGEAIEtyhtXVbYmpJ0sH17MoYmjpwsW7_3bD0TcsrgnIFkAwAQkeKKDWJgIpZCpHukxwSPI0iE2ie9HXFIjrx_C23MUt4j7QMabxszp5_G1aarbeOprehsXTr7ig1t0dlVXSI1TUm_TIcukK111Db01jh_QUdL183CuG7KuvjjgIHdWKBdelrMcFH7zq2PyUFl5h5PfmufPI2uH4eTaHo3vhleTqNCKNFFkknALFOFhDIFVZhKSmDhbJ4Ik1dFXBrJlUoZKMVEqTDJZAkix5zlOTLO--Rs69s6-7FE3-mwv8D53PwcpFkqJc-kVOI_KCSpTCELKN-ihbPeO6x06-qFcWvNQG9eoTdB603QeveKoIq2qpAArnYS4961SngidQrPenSvrl7khOkx_wbO-Itk</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1850785809</pqid></control><display><type>article</type><title>Seasonal variations of hydrogen peroxide and water vapor on Mars: Further indications of heterogeneous chemistry</title><source>Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX</source><source>EDP Sciences</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><creator>Encrenaz, T. ; Greathouse, T. K. ; Lefèvre, F. ; Montmessin, F. ; Forget, F. ; Fouchet, T. ; DeWitt, C. ; Richter, M. J. ; Lacy, J. H. ; Bézard, B. ; Atreya, S. K.</creator><creatorcontrib>Encrenaz, T. ; Greathouse, T. K. ; Lefèvre, F. ; Montmessin, F. ; Forget, F. ; Fouchet, T. ; DeWitt, C. ; Richter, M. J. ; Lacy, J. H. ; Bézard, B. ; Atreya, S. K.</creatorcontrib><description>We have completed our seasonal monitoring of hydrogen peroxide and water vapor on Mars using ground-based thermal imaging spectroscopy, by observing the planet in March 2014, when water vapor is maximum, and July 2014, when, according to photochemical models, hydrogen peroxide is expected to be maximum. Data have been obtained with the Texas Echelon Cross Echelle Spectrograph (TEXES) mounted at the 3 m–Infrared Telescope Facility (IRTF) at Maunakea Observatory. Maps of HDO and H2O2 have been obtained using line depth ratios of weak transitions of HDO and H2O2 divided by CO2. The retrieved maps of H2O2 are in good agreement with predictions including a chemical transport model, for both the March data (maximum water vapor) and the July data (maximum hydrogen peroxide). The retrieved maps of HDO are compared with simulations by Montmessin et al. (2005, J. Geophys. Res., 110, 03006) and H2O maps are inferred assuming a mean martian D/H ratio of 5 times the terrestrial value. For regions of maximum values of H2O and H2O2, we derive, for March 1 2014 (Ls = 96°), H2O2 = 20+/−7 ppbv, HDO = 450 +/−75 ppbv (45 +/−8 pr-nm), and for July 3, 2014 (Ls = 156°), H2O2 = 30+/−7 ppbv, HDO = 375+/−70 ppbv (22+/−3 pr-nm). In addition, the new observations are compared with LMD global climate model results and we favor simulations of H2O2 including heterogeneous reactions on water-ice clouds.</description><identifier>ISSN: 0004-6361</identifier><identifier>EISSN: 1432-0746</identifier><identifier>DOI: 10.1051/0004-6361/201425448</identifier><language>eng</language><publisher>EDP Sciences</publisher><subject>Clouds ; Computer simulation ; Hydrogen peroxide ; Indication ; Mars (planet) ; planets and satellites: atmospheres ; planets and satellites: individual: Mars ; planets and satellites: terrestrial planets ; Transportation models ; Water vapor</subject><ispartof>Astronomy and astrophysics (Berlin), 2015-06, Vol.578, p.A127</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c464t-5150e996c50d806caf5501000374abfc2da53668106614d6e795d04beb1bbe133</citedby><cites>FETCH-LOGICAL-c464t-5150e996c50d806caf5501000374abfc2da53668106614d6e795d04beb1bbe133</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,3714,27901,27902</link.rule.ids></links><search><creatorcontrib>Encrenaz, T.</creatorcontrib><creatorcontrib>Greathouse, T. K.</creatorcontrib><creatorcontrib>Lefèvre, F.</creatorcontrib><creatorcontrib>Montmessin, F.</creatorcontrib><creatorcontrib>Forget, F.</creatorcontrib><creatorcontrib>Fouchet, T.</creatorcontrib><creatorcontrib>DeWitt, C.</creatorcontrib><creatorcontrib>Richter, M. J.</creatorcontrib><creatorcontrib>Lacy, J. H.</creatorcontrib><creatorcontrib>Bézard, B.</creatorcontrib><creatorcontrib>Atreya, S. K.</creatorcontrib><title>Seasonal variations of hydrogen peroxide and water vapor on Mars: Further indications of heterogeneous chemistry</title><title>Astronomy and astrophysics (Berlin)</title><description>We have completed our seasonal monitoring of hydrogen peroxide and water vapor on Mars using ground-based thermal imaging spectroscopy, by observing the planet in March 2014, when water vapor is maximum, and July 2014, when, according to photochemical models, hydrogen peroxide is expected to be maximum. Data have been obtained with the Texas Echelon Cross Echelle Spectrograph (TEXES) mounted at the 3 m–Infrared Telescope Facility (IRTF) at Maunakea Observatory. Maps of HDO and H2O2 have been obtained using line depth ratios of weak transitions of HDO and H2O2 divided by CO2. The retrieved maps of H2O2 are in good agreement with predictions including a chemical transport model, for both the March data (maximum water vapor) and the July data (maximum hydrogen peroxide). The retrieved maps of HDO are compared with simulations by Montmessin et al. (2005, J. Geophys. Res., 110, 03006) and H2O maps are inferred assuming a mean martian D/H ratio of 5 times the terrestrial value. For regions of maximum values of H2O and H2O2, we derive, for March 1 2014 (Ls = 96°), H2O2 = 20+/−7 ppbv, HDO = 450 +/−75 ppbv (45 +/−8 pr-nm), and for July 3, 2014 (Ls = 156°), H2O2 = 30+/−7 ppbv, HDO = 375+/−70 ppbv (22+/−3 pr-nm). In addition, the new observations are compared with LMD global climate model results and we favor simulations of H2O2 including heterogeneous reactions on water-ice clouds.</description><subject>Clouds</subject><subject>Computer simulation</subject><subject>Hydrogen peroxide</subject><subject>Indication</subject><subject>Mars (planet)</subject><subject>planets and satellites: atmospheres</subject><subject>planets and satellites: individual: Mars</subject><subject>planets and satellites: terrestrial planets</subject><subject>Transportation models</subject><subject>Water vapor</subject><issn>0004-6361</issn><issn>1432-0746</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqNkU9PwzAMxSMEEmPwCbjkyKXMaf605QYT25CGEAIEtyhtXVbYmpJ0sH17MoYmjpwsW7_3bD0TcsrgnIFkAwAQkeKKDWJgIpZCpHukxwSPI0iE2ie9HXFIjrx_C23MUt4j7QMabxszp5_G1aarbeOprehsXTr7ig1t0dlVXSI1TUm_TIcukK111Db01jh_QUdL183CuG7KuvjjgIHdWKBdelrMcFH7zq2PyUFl5h5PfmufPI2uH4eTaHo3vhleTqNCKNFFkknALFOFhDIFVZhKSmDhbJ4Ik1dFXBrJlUoZKMVEqTDJZAkix5zlOTLO--Rs69s6-7FE3-mwv8D53PwcpFkqJc-kVOI_KCSpTCELKN-ihbPeO6x06-qFcWvNQG9eoTdB603QeveKoIq2qpAArnYS4961SngidQrPenSvrl7khOkx_wbO-Itk</recordid><startdate>201506</startdate><enddate>201506</enddate><creator>Encrenaz, T.</creator><creator>Greathouse, T. K.</creator><creator>Lefèvre, F.</creator><creator>Montmessin, F.</creator><creator>Forget, F.</creator><creator>Fouchet, T.</creator><creator>DeWitt, C.</creator><creator>Richter, M. J.</creator><creator>Lacy, J. H.</creator><creator>Bézard, B.</creator><creator>Atreya, S. K.</creator><general>EDP Sciences</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>201506</creationdate><title>Seasonal variations of hydrogen peroxide and water vapor on Mars: Further indications of heterogeneous chemistry</title><author>Encrenaz, T. ; Greathouse, T. K. ; Lefèvre, F. ; Montmessin, F. ; Forget, F. ; Fouchet, T. ; DeWitt, C. ; Richter, M. J. ; Lacy, J. H. ; Bézard, B. ; Atreya, S. K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c464t-5150e996c50d806caf5501000374abfc2da53668106614d6e795d04beb1bbe133</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Clouds</topic><topic>Computer simulation</topic><topic>Hydrogen peroxide</topic><topic>Indication</topic><topic>Mars (planet)</topic><topic>planets and satellites: atmospheres</topic><topic>planets and satellites: individual: Mars</topic><topic>planets and satellites: terrestrial planets</topic><topic>Transportation models</topic><topic>Water vapor</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Encrenaz, T.</creatorcontrib><creatorcontrib>Greathouse, T. K.</creatorcontrib><creatorcontrib>Lefèvre, F.</creatorcontrib><creatorcontrib>Montmessin, F.</creatorcontrib><creatorcontrib>Forget, F.</creatorcontrib><creatorcontrib>Fouchet, T.</creatorcontrib><creatorcontrib>DeWitt, C.</creatorcontrib><creatorcontrib>Richter, M. J.</creatorcontrib><creatorcontrib>Lacy, J. H.</creatorcontrib><creatorcontrib>Bézard, B.</creatorcontrib><creatorcontrib>Atreya, S. K.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Astronomy and astrophysics (Berlin)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Encrenaz, T.</au><au>Greathouse, T. K.</au><au>Lefèvre, F.</au><au>Montmessin, F.</au><au>Forget, F.</au><au>Fouchet, T.</au><au>DeWitt, C.</au><au>Richter, M. J.</au><au>Lacy, J. H.</au><au>Bézard, B.</au><au>Atreya, S. K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Seasonal variations of hydrogen peroxide and water vapor on Mars: Further indications of heterogeneous chemistry</atitle><jtitle>Astronomy and astrophysics (Berlin)</jtitle><date>2015-06</date><risdate>2015</risdate><volume>578</volume><spage>A127</spage><pages>A127-</pages><issn>0004-6361</issn><eissn>1432-0746</eissn><abstract>We have completed our seasonal monitoring of hydrogen peroxide and water vapor on Mars using ground-based thermal imaging spectroscopy, by observing the planet in March 2014, when water vapor is maximum, and July 2014, when, according to photochemical models, hydrogen peroxide is expected to be maximum. Data have been obtained with the Texas Echelon Cross Echelle Spectrograph (TEXES) mounted at the 3 m–Infrared Telescope Facility (IRTF) at Maunakea Observatory. Maps of HDO and H2O2 have been obtained using line depth ratios of weak transitions of HDO and H2O2 divided by CO2. The retrieved maps of H2O2 are in good agreement with predictions including a chemical transport model, for both the March data (maximum water vapor) and the July data (maximum hydrogen peroxide). The retrieved maps of HDO are compared with simulations by Montmessin et al. (2005, J. Geophys. Res., 110, 03006) and H2O maps are inferred assuming a mean martian D/H ratio of 5 times the terrestrial value. For regions of maximum values of H2O and H2O2, we derive, for March 1 2014 (Ls = 96°), H2O2 = 20+/−7 ppbv, HDO = 450 +/−75 ppbv (45 +/−8 pr-nm), and for July 3, 2014 (Ls = 156°), H2O2 = 30+/−7 ppbv, HDO = 375+/−70 ppbv (22+/−3 pr-nm). In addition, the new observations are compared with LMD global climate model results and we favor simulations of H2O2 including heterogeneous reactions on water-ice clouds.</abstract><pub>EDP Sciences</pub><doi>10.1051/0004-6361/201425448</doi><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0004-6361 |
ispartof | Astronomy and astrophysics (Berlin), 2015-06, Vol.578, p.A127 |
issn | 0004-6361 1432-0746 |
language | eng |
recordid | cdi_proquest_miscellaneous_1855395564 |
source | Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX; EDP Sciences; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
subjects | Clouds Computer simulation Hydrogen peroxide Indication Mars (planet) planets and satellites: atmospheres planets and satellites: individual: Mars planets and satellites: terrestrial planets Transportation models Water vapor |
title | Seasonal variations of hydrogen peroxide and water vapor on Mars: Further indications of heterogeneous chemistry |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-13T23%3A08%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Seasonal%20variations%20of%20hydrogen%20peroxide%20and%20water%20vapor%20on%20Mars:%20Further%20indications%20of%20heterogeneous%20chemistry&rft.jtitle=Astronomy%20and%20astrophysics%20(Berlin)&rft.au=Encrenaz,%20T.&rft.date=2015-06&rft.volume=578&rft.spage=A127&rft.pages=A127-&rft.issn=0004-6361&rft.eissn=1432-0746&rft_id=info:doi/10.1051/0004-6361/201425448&rft_dat=%3Cproquest_cross%3E1855395564%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1850785809&rft_id=info:pmid/&rfr_iscdi=true |