Latitudinal dependence of the ExTL from in situ observations
Authors
Pisso, IgnacioLaw, Kathy
Fierli, Federico
Hoor, Peter
Jégou, Fabrice
Palazzi, Elisa
Ajtić, Jelena
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Multiple in-situ datasets are combined and a consistent set of dynamical diagnostics is derived from ECMWF
wind fields. These tools are used to investigate the extra tropical transition layer (ExTL) region in terms of potential temperature – equivalent latitude coordinates and distance relative to the local dynamical (PV) tropopause. The
location and structure of the maximal vertical gradient of CO is studied as a mean to define a chemical tropopause.
The same methods applied to other tracers (e.g. ozone) give different results since different tracers have different chemical tropopauses. Iso-PV following vertical coordinates can be used to relate the dynamical/PV based
tropopause and the tracer gradient based tropopause taking into account latitudinal dependence and seasonal variability. The resulting information is intended to derive diagnostics useful to test the performance of global chemical
models and establish comparisons with Lagrangian models.
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Geophysical Research Abstracts 11, April 19–24, Vienna, Austria, 2009, 12918-Publisher:
- EGU
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Fakultet veterinarske medicineTY - CONF AU - Pisso, Ignacio AU - Law, Kathy AU - Fierli, Federico AU - Hoor, Peter AU - Jégou, Fabrice AU - Palazzi, Elisa AU - Ajtić, Jelena PY - 2009 UR - https://vet-erinar.vet.bg.ac.rs/handle/123456789/2431 AB - Multiple in-situ datasets are combined and a consistent set of dynamical diagnostics is derived from ECMWF wind fields. These tools are used to investigate the extra tropical transition layer (ExTL) region in terms of potential temperature – equivalent latitude coordinates and distance relative to the local dynamical (PV) tropopause. The location and structure of the maximal vertical gradient of CO is studied as a mean to define a chemical tropopause. The same methods applied to other tracers (e.g. ozone) give different results since different tracers have different chemical tropopauses. Iso-PV following vertical coordinates can be used to relate the dynamical/PV based tropopause and the tracer gradient based tropopause taking into account latitudinal dependence and seasonal variability. The resulting information is intended to derive diagnostics useful to test the performance of global chemical models and establish comparisons with Lagrangian models. PB - EGU C3 - Geophysical Research Abstracts 11, April 19–24, Vienna, Austria T1 - Latitudinal dependence of the ExTL from in situ observations SP - 12918 UR - https://hdl.handle.net/21.15107/rcub_veterinar_2431 ER -
@conference{ author = "Pisso, Ignacio and Law, Kathy and Fierli, Federico and Hoor, Peter and Jégou, Fabrice and Palazzi, Elisa and Ajtić, Jelena", year = "2009", abstract = "Multiple in-situ datasets are combined and a consistent set of dynamical diagnostics is derived from ECMWF wind fields. These tools are used to investigate the extra tropical transition layer (ExTL) region in terms of potential temperature – equivalent latitude coordinates and distance relative to the local dynamical (PV) tropopause. The location and structure of the maximal vertical gradient of CO is studied as a mean to define a chemical tropopause. The same methods applied to other tracers (e.g. ozone) give different results since different tracers have different chemical tropopauses. Iso-PV following vertical coordinates can be used to relate the dynamical/PV based tropopause and the tracer gradient based tropopause taking into account latitudinal dependence and seasonal variability. The resulting information is intended to derive diagnostics useful to test the performance of global chemical models and establish comparisons with Lagrangian models.", publisher = "EGU", journal = "Geophysical Research Abstracts 11, April 19–24, Vienna, Austria", title = "Latitudinal dependence of the ExTL from in situ observations", pages = "12918", url = "https://hdl.handle.net/21.15107/rcub_veterinar_2431" }
Pisso, I., Law, K., Fierli, F., Hoor, P., Jégou, F., Palazzi, E.,& Ajtić, J.. (2009). Latitudinal dependence of the ExTL from in situ observations. in Geophysical Research Abstracts 11, April 19–24, Vienna, Austria EGU., 12918. https://hdl.handle.net/21.15107/rcub_veterinar_2431
Pisso I, Law K, Fierli F, Hoor P, Jégou F, Palazzi E, Ajtić J. Latitudinal dependence of the ExTL from in situ observations. in Geophysical Research Abstracts 11, April 19–24, Vienna, Austria. 2009;:12918. https://hdl.handle.net/21.15107/rcub_veterinar_2431 .
Pisso, Ignacio, Law, Kathy, Fierli, Federico, Hoor, Peter, Jégou, Fabrice, Palazzi, Elisa, Ajtić, Jelena, "Latitudinal dependence of the ExTL from in situ observations" in Geophysical Research Abstracts 11, April 19–24, Vienna, Austria (2009):12918, https://hdl.handle.net/21.15107/rcub_veterinar_2431 .