A set of diagnostics for evaluating chemistry-climate models in the extratropical tropopause region
Identifieur interne : 000133 ( PascalFrancis/Corpus ); précédent : 000132; suivant : 000134A set of diagnostics for evaluating chemistry-climate models in the extratropical tropopause region
Auteurs : L. L. Pan ; J. C. Wei ; D. E. Kinnison ; R. R. Garcia ; D. J. Wuebbles ; G. P. BrasseurSource :
- Journal of geophysical research [ 0148-0227 ] ; 2007.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
[1] Three related diagnostics are used to evaluate the representation of chemical transport processes in the extratropical upper troposphere and lower stratosphere (UTLS) by chemistry-transport and chemistry-climate models. The diagnostics are based on in situ observations of ozone, carbon monoxide, water vapor profiles (obtained on board the NASA ER-2 research aircraft, near 65°N and during 1997), and their interrelationships in the UTLS. The first diagnostic compares the observed and modeled UTLS trace gas profiles in a relative altitude coordinate. The second one compares the observed and modeled UTLS tracer relationships. The third one compares the observed and modeled thickness of the tropopause transition layer. Together, they characterize the model's ability to reproduce the observed chemical distribution in the UTLS region and chemical transition across the extratropical tropopause. These are key indicators of whether the contributions of dynamics and chemistry to this region are correctly represented in the models. These diagnostics are used to evaluate the performance of an NCAR chemistry-transport model (CTM), MOZART-3, and a chemistry-climate model (CCM), WACCM3. Results from four model runs with different meteorological fields and grid resolution are examined. Overall, the NCAR models show qualitative agreement with the observations in the location of the chemical transition across the extratropical tropopause. Quantitatively, there are significant differences between the modeled and the observed chemical distributions. Both the meteorological field and grid resolutions are contributing factors to the differences.
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Format Inist (serveur)
NO : | PASCAL 07-0290419 INIST |
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ET : | A set of diagnostics for evaluating chemistry-climate models in the extratropical tropopause region |
AU : | PAN (L. L.); WEI (J. C.); KINNISON (D. E.); GARCIA (R. R.); WUEBBLES (D. J.); BRASSEUR (G. P.) |
AF : | Atmospheric Chemistry Division, National Center for Atmospheric Research/Boulder, Colorado/Etats-Unis (1 aut., 3 aut., 4 aut., 6 aut.); Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign/Urbana, Illinois/Etats-Unis (2 aut., 5 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Journal of geophysical research; ISSN 0148-0227; Etats-Unis; Da. 2007; Vol. 112; No. D9; D09316.1-D09316.12; Bibl. 3/4 p. |
LA : | Anglais |
EA : | [1] Three related diagnostics are used to evaluate the representation of chemical transport processes in the extratropical upper troposphere and lower stratosphere (UTLS) by chemistry-transport and chemistry-climate models. The diagnostics are based on in situ observations of ozone, carbon monoxide, water vapor profiles (obtained on board the NASA ER-2 research aircraft, near 65°N and during 1997), and their interrelationships in the UTLS. The first diagnostic compares the observed and modeled UTLS trace gas profiles in a relative altitude coordinate. The second one compares the observed and modeled UTLS tracer relationships. The third one compares the observed and modeled thickness of the tropopause transition layer. Together, they characterize the model's ability to reproduce the observed chemical distribution in the UTLS region and chemical transition across the extratropical tropopause. These are key indicators of whether the contributions of dynamics and chemistry to this region are correctly represented in the models. These diagnostics are used to evaluate the performance of an NCAR chemistry-transport model (CTM), MOZART-3, and a chemistry-climate model (CCM), WACCM3. Results from four model runs with different meteorological fields and grid resolution are examined. Overall, the NCAR models show qualitative agreement with the observations in the location of the chemical transition across the extratropical tropopause. Quantitatively, there are significant differences between the modeled and the observed chemical distributions. Both the meteorological field and grid resolutions are contributing factors to the differences. |
CC : | 220; 001E; 001E01 |
FD : | Modèle climat; Tropopause; Phénomène transport; Troposphère; Stratosphère; Transport; In situ; Ozone; Monoxyde carbone; Carbone monoxyde; Vapeur eau; NASA; Composé trace; Altitude; Coordonnée; Traceur; Epaisseur; Couche transition; Indicateur; Dynamique; Champ météorologique |
ED : | Climate models; Tropopause; Transport process; troposphere; stratosphere; transport; in situ; ozone; carbon monoxide; Carbon monoxide; water vapor; NASA; Trace compound; altitude; coordinates; tracers; thickness; Transition layer; indicators; dynamics; Meteorological field |
SD : | Tropopausa; Fenómeno transporte; Estratosfera; Transporte; Ozono; Carbono monóxido; Vapor agua; Compuesto huella; Altitud; Trazador; Espesor; Capa transición; Dinámica; Campo meteorológico |
LO : | INIST-3144.354000149880920490 |
ID : | 07-0290419 |
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Pascal:07-0290419Le document en format XML
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<term>indicators</term>
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<front><div type="abstract" xml:lang="en">[1] Three related diagnostics are used to evaluate the representation of chemical transport processes in the extratropical upper troposphere and lower stratosphere (UTLS) by chemistry-transport and chemistry-climate models. The diagnostics are based on in situ observations of ozone, carbon monoxide, water vapor profiles (obtained on board the NASA ER-2 research aircraft, near 65°N and during 1997), and their interrelationships in the UTLS. The first diagnostic compares the observed and modeled UTLS trace gas profiles in a relative altitude coordinate. The second one compares the observed and modeled UTLS tracer relationships. The third one compares the observed and modeled thickness of the tropopause transition layer. Together, they characterize the model's ability to reproduce the observed chemical distribution in the UTLS region and chemical transition across the extratropical tropopause. These are key indicators of whether the contributions of dynamics and chemistry to this region are correctly represented in the models. These diagnostics are used to evaluate the performance of an NCAR chemistry-transport model (CTM), MOZART-3, and a chemistry-climate model (CCM), WACCM3. Results from four model runs with different meteorological fields and grid resolution are examined. Overall, the NCAR models show qualitative agreement with the observations in the location of the chemical transition across the extratropical tropopause. Quantitatively, there are significant differences between the modeled and the observed chemical distributions. Both the meteorological field and grid resolutions are contributing factors to the differences.</div>
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<s5>15</s5>
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<fC03 i1="15" i2="2" l="ENG"><s0>coordinates</s0>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="2" l="FRE"><s0>Traceur</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="2" l="ENG"><s0>tracers</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="2" l="SPA"><s0>Trazador</s0>
<s5>16</s5>
</fC03>
<fC03 i1="17" i2="2" l="FRE"><s0>Epaisseur</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="2" l="ENG"><s0>thickness</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="2" l="SPA"><s0>Espesor</s0>
<s5>17</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE"><s0>Couche transition</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="X" l="ENG"><s0>Transition layer</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="X" l="SPA"><s0>Capa transición</s0>
<s5>18</s5>
</fC03>
<fC03 i1="19" i2="2" l="FRE"><s0>Indicateur</s0>
<s5>19</s5>
</fC03>
<fC03 i1="19" i2="2" l="ENG"><s0>indicators</s0>
<s5>19</s5>
</fC03>
<fC03 i1="20" i2="2" l="FRE"><s0>Dynamique</s0>
<s5>20</s5>
</fC03>
<fC03 i1="20" i2="2" l="ENG"><s0>dynamics</s0>
<s5>20</s5>
</fC03>
<fC03 i1="20" i2="2" l="SPA"><s0>Dinámica</s0>
<s5>20</s5>
</fC03>
<fC03 i1="21" i2="X" l="FRE"><s0>Champ météorologique</s0>
<s5>21</s5>
</fC03>
<fC03 i1="21" i2="X" l="ENG"><s0>Meteorological field</s0>
<s5>21</s5>
</fC03>
<fC03 i1="21" i2="X" l="SPA"><s0>Campo meteorológico</s0>
<s5>21</s5>
</fC03>
<fN21><s1>190</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
</standard>
<server><NO>PASCAL 07-0290419 INIST</NO>
<ET>A set of diagnostics for evaluating chemistry-climate models in the extratropical tropopause region</ET>
<AU>PAN (L. L.); WEI (J. C.); KINNISON (D. E.); GARCIA (R. R.); WUEBBLES (D. J.); BRASSEUR (G. P.)</AU>
<AF>Atmospheric Chemistry Division, National Center for Atmospheric Research/Boulder, Colorado/Etats-Unis (1 aut., 3 aut., 4 aut., 6 aut.); Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign/Urbana, Illinois/Etats-Unis (2 aut., 5 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of geophysical research; ISSN 0148-0227; Etats-Unis; Da. 2007; Vol. 112; No. D9; D09316.1-D09316.12; Bibl. 3/4 p.</SO>
<LA>Anglais</LA>
<EA>[1] Three related diagnostics are used to evaluate the representation of chemical transport processes in the extratropical upper troposphere and lower stratosphere (UTLS) by chemistry-transport and chemistry-climate models. The diagnostics are based on in situ observations of ozone, carbon monoxide, water vapor profiles (obtained on board the NASA ER-2 research aircraft, near 65°N and during 1997), and their interrelationships in the UTLS. The first diagnostic compares the observed and modeled UTLS trace gas profiles in a relative altitude coordinate. The second one compares the observed and modeled UTLS tracer relationships. The third one compares the observed and modeled thickness of the tropopause transition layer. Together, they characterize the model's ability to reproduce the observed chemical distribution in the UTLS region and chemical transition across the extratropical tropopause. These are key indicators of whether the contributions of dynamics and chemistry to this region are correctly represented in the models. These diagnostics are used to evaluate the performance of an NCAR chemistry-transport model (CTM), MOZART-3, and a chemistry-climate model (CCM), WACCM3. Results from four model runs with different meteorological fields and grid resolution are examined. Overall, the NCAR models show qualitative agreement with the observations in the location of the chemical transition across the extratropical tropopause. Quantitatively, there are significant differences between the modeled and the observed chemical distributions. Both the meteorological field and grid resolutions are contributing factors to the differences.</EA>
<CC>220; 001E; 001E01</CC>
<FD>Modèle climat; Tropopause; Phénomène transport; Troposphère; Stratosphère; Transport; In situ; Ozone; Monoxyde carbone; Carbone monoxyde; Vapeur eau; NASA; Composé trace; Altitude; Coordonnée; Traceur; Epaisseur; Couche transition; Indicateur; Dynamique; Champ météorologique</FD>
<ED>Climate models; Tropopause; Transport process; troposphere; stratosphere; transport; in situ; ozone; carbon monoxide; Carbon monoxide; water vapor; NASA; Trace compound; altitude; coordinates; tracers; thickness; Transition layer; indicators; dynamics; Meteorological field</ED>
<SD>Tropopausa; Fenómeno transporte; Estratosfera; Transporte; Ozono; Carbono monóxido; Vapor agua; Compuesto huella; Altitud; Trazador; Espesor; Capa transición; Dinámica; Campo meteorológico</SD>
<LO>INIST-3144.354000149880920490</LO>
<ID>07-0290419</ID>
</server>
</inist>
</record>
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