a limb/nadir imaging Fourier transform spectrometer as a next generation of MIPAS

Transcription

1 GLORIA-AB a limb/nadir imaging Fourier transform spectrometer as a next generation of MIPAS - to explore meso-scale processes and their role for the global scale - to provide proof of concept for PREMIER 1

2 MIPAS-history 2

3 3

4 The early 80ies 4

5 Cryogenic balloon-borne MIPAS: starting in the mid 80ies 5

6 Cryogenic instruments tailored to aircraft: starting in the late 80ies 6

7 Black&white Compact Non-glossy Drafting team: H. Fischer, P. Burkert, F. Fergg, H. Oelhaf, H. Wildgruber 7

8 ~ 20 years later 8

9 Why GLORIA? Over the last decades state of the art spaceborne sensors have increased a lot our knowledge on large-scale stratospheric composition, chemistry and transport But important issues, particularly on smaller scales, still remain open Mesoscale processes and their role for the global scale Emerging IR detector array and computer technology allow limb imaging instead of limb scanning Improvement of spatial sampling by a factor of 5-10 along with providing spatial coverage and tomographic capabilities 9

10 Project team (development phase) FORSCHUNGSZENTRUM JÜLICH: INSTITUT FÜR ENERGIE UND KLIMAFORSCHUNG: M. Riese, P. Preusse, V. Tan, A. Schönfeld, J. Ungermann et al. ZENTRALINSTITUT FÜR ELEKTRONIK: T. Neubert, H. Rongen et al. ZENTRALABTEILUNG FÜR TECHNOLOGIE: H. Schneider, T. Kulessa, J. Schillings, N. Beyer BERGISCHE UNIVERSITÄT WUPPERTAL F.Olschewski KIT: INSTITUT FÜR METEOROLOGIE UND KLIMAFORSCHUNG H. Fischer, J. Orphal, H. Oelhaf F. Friedl-Vallon, T. Gulde, A. Kleinert, E. Kretschmer, G. Maucher, H. Nordmeyer, C. Piesch, C. Sartorius, M. K. Sha et al. INSTITUT FÜR PROZESSINSTRUMENTIERUNG UND ELEKTRONIK: A. Ebersoldt, R.Dapp 10

11 GLORIA & PREMIER-IRLS Following the MIPAS rationale Two active development threads GLORIA is a KIT/FZJ project, PREMIER is an ESA led project GLORIA is the airborne precursor to the space borne PREMIER-IRLS instrument Proof of concept and problem scout Development tool for L0/L1/L2 algorithms & methods GLORIA will contribute to science independently Geophysica & HALO aircraft First mission completed in Nov/Dec Further missions planned: 2012ff Balloon flights with conventional and long duration stratospheric balloons intended (2014++) Projects are interrelated 11

12 Observation characteristics HALO and Geophysica vertical direction (128 pixels) horizontal direction (64 pixels) Chemistry mode spatial sampling 64 x 4 pixels: 2 x 8 = 9 km x 560 m (@ 10 km) FOV moved from 45 to 132 to flight direction in 2 steps. Limb-nadir synergy Dynamics mode spatial sampling 64 x 1 pixels: 2 x 2 = 9 km x 140 m (@ 10 km) 12

13 ESSENCE Geophysica Nov./Dec Base: Arena Arctica Objectives: Very first GLORIA deployment Validation vs. MIPAS- STR and in-situ instruments Premier POC Gravity waves Filaments Tropopause faults etc. Supported by ESA 13

14 Impressions from first deployment Mounting of GLORIA in Geophysica front bay Photo: Erik Kretschmer/KIT LOS performance test with moving instrument (on trailer) Photo: Peter Preusse/FZJ 14

15 First atmospheric (preliminarily) calibrated spectra Kiruna, 24 Nov. 2011, chemistry mode (32 vertical levels) Spectral Radiance [W/(cm 2 sr cm -1 )] 2.0x x x x10-6 Spectral Radiance [W/(cm 2 sr cm -1 )] 2.0x x x x Wavenumber [cm -1 ] Wavenumber [cm -1 ] h_000_000 h_000_001 h_000_002 h_000_003 h_000_004 h_000_005 h_000_006 h_000_007 h_000_008 h_000_009 h_000_010 h_000_011 h_000_012 h_000_013 h_000_014 h_000_015 h_000_016 h_000_017 h_000_018 h_000_019 h_000_020 h_000_021 h_000_022 h_000_023 h_000_024 h_000_025 h_000_026 h_000_027 h_000_028 h_000_029 h_000_030 h_000_031 15

16 1.5x10-5 H2O Spectral Radiance [W/(cm 2 sr cm -1 )] 1.0x x10-6 CO2 laser band CFC-11 CFC Wavenumber [cm -1 ] 16

17 H2O H2O H2O H2O+CO2 Spectral Radiance [W/(cm 2 sr cm -1 )] 1.0x x10-6 CFC-12 CO2 CFC-12 CFC-12 +CO Wavenumber [cm -1 ] 17

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19 Spectral radiance [nw/(cm sr cm )] Spectral radiance [nw/(cm sr cm )] GLORIA Calibrated flight spectra: 1x128 vs. 4x Wavenumber [cm ] -1 Wavenumber [cm ] Anne Kleinert, 26 Feb years of MIPAS in space GLORIA - the next generation Hermann Oelhaf IMK/ASF/IFB+FFB

20 Future Missions and Science ESSENCE Geophysica (2011): POC, Premier Themes 1&3 TACTS/ESMVal HALO (2012): Transport through sub-trop. jet CLIAM Geophysica (tbc 2014): Monsoon outflow, POLSTRACC HALO (tbc 2014/15: Bottom of polar vortex Balloons: 2014/2015: POC, stratosph. processes Long-duration balloons, 2015 onwards: Premier precursor, bridging gaps in satellite missions 20

21 HALO: Flight Certification flights with belly pod 21 Katrin Witte, Flugexperimente, Oberpfaffenhofen

22 HALO Flightpath für TACTS und ESMVal N x3 65 S 22

23 ani 23