 |
| Titel |
Arctic UTLS composition measured by the MARSCHALS instrument during the PREMIEREX and ESSENCE campaigns |
| VerfasserIn |
Ugo Cortesi, Elisa Castelli, Samuele Del Bianco, Bianca Maria Dinelli, Daniel Gerber, Brian Kerridge, Hermann Oelhaf, Wolfgang Woiwode, Baerbel Vogel, Bjoern-Martin Sinnhuber, Roland Ruhnke |
| Konferenz |
EGU General Assembly 2013
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250082518
|
|
|
|
|
|
| Zusammenfassung |
| An overview of the results obtained by the MARSCHALS (Millimetre-wave Airborne
Receivers for Spectroscopic CHaracterisation in Atmospheric Limb Sounding) instrument
during Premier-Ex (March 2010, Kiruna, Sweden) and ESSenCe 2011 (December 2011,
Kiruna, Sweden) aircraft Arctic campaigns is presented.
The two campaigns were part of the activities conducted as preparatory studies for
PREMIER (Process Exploration through Measurements of Infrared and millimeter-wave
Emitted Radiation), one of the three candidate core missions of ESA Earth Explorer 7. The
primary objective of PREMIER is to gain a better understanding of the processes that are
linking atmospheric chemistry and dynamics with climate. PREMIER will achieve this by
observing the Upper Troposphere / Lower Stratosphere (UTLS) - a region of particular
importance in the study of climate change - with unprecedented spatial and temporal
resolution. PREMIER combines the complementary capabilities of two limb-sounders in the
infrared and millimeter-wave spectral regions and MARSCHALS was developed as an
airborne demonstrator of the PREMIER millimeter-wave spectrometer.
In the frame of the two Arctic campaigns, MARSCHALS sampled the Arctic UTLS
retrieving vertical profiles of its main atmospheric targets (T, H2O, O3, HNO3, N2O,
CO).
The obtained vertical profiles have been used to investigate chemical and dynamical
processes taking place in the Arctic atmosphere. In particular, we found the presence of
filaments of vortex air during the Premier-Ex campaign and of re-nitrification or HNO3
redistribution due to sedimentation followed by evaporation of Polar Stratospheric
Cloud (PSC) particles during the ESSenCe campaign. Furthermore, the results of the
comparisonbetween MARSCHALS and MIPAS-STR products as well as the state of the
atmosphere during the ESSenCe campaign simulated by theCLaMS (Chemical Lagrangian
Model of the Stratosphere) and EMAC (ECHAM/MESSy Atmospheric Chemistry) models
will be presented. |
|
|
|
|
|
|