Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft MIPAS-STR IMK-Seminar 7 Oktober 20051...

MIPAS-STR IMK-Seminar 7 Oktober 2005 1

Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft

MIPAS aircraft : current activities (update 07.10.2005)POF: Topic 4: Changes in the Tropopause Region

Topic 5: The Stratosphere in a Changing Environment

Current group members : Thomas Gulde, Corneli Keim, Guangyuan Liu, Christof Piesch, Cornelis Blom, (Michael Höpfner, AME) Former group members : Dagmar Buggle, Esat Cetin, Norbert Glatthor, Michael Höpfner, Wolfgang Kimmig,

Katrin Lessenich, Peter Loes, Guillaume Piard, Christian Sartorius, Ralf Schlipper

MIPAS-STR : MIPAS on stratospheric aircraft (M55-Geophysica) http://www-imk.fzk.de/asf/mipas-str/

Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaftmain activities since 27 April 2005

HALO: GLORIA-AB and POLSTRACC

Demonstrator (Praktikum Elio König, Sept. 2005 )

Preparation for the SCOUT-O3 campaign (Nov/Dec 2005)

Telemetry: up- and downlink (cooperation with IPE)TC5 : Testcampaign from O‘hofen (July 2005)

Data retrieval of the Aracatuba campaign

Elio beim Montieren des GLORIA Demonstrators

Jetzige Version des Demonstrators

Laborstruktur mit:

Komplettes DPI (Rotor, Stator, Antrieb, Strahteilereinheit).

LMI-Zweig wurde getestet mit Bruker IFME

Nächste Ausbaustufe:

Detektorarray (AIM)

Quelle

Demonstrator (Sept. 2005, Elio König)

11.11.

Preliminary conclusions (27 April 2005)• Zenith measurements successful

(improved deep-space calibration)• Telemetry: up- and downlink: successful, but improvement needed for SCOUT • Various other changes (heaters etc.) worked excellent (tropics !!)• Despite various ‘logistical’ problems (extremely short preparation phase in

Aracatuba) and inherent problems with clouds we have obtained good measurements at the time of the Envisat overpass.

2nd shutter for zenith measurements

System: IridiumDatenrate: 300 bytes/sec

= 1 Datenpaket / 2s

Successful tests in the two flights during TC5 (July 2005)

Telemetry

Demonstrator (Sept. 2005, Elio König)

Data processing of the Araçatuba campaign

raw spektra 17.2.2005 Aracatuba (only phase corrected)

750 800 850 900 950 1000

wavenumber [cm-1]

"deep" space (+10°)zenith (+90°)

raw spektra 17.2.2005 Aracatuba (only phase corrected)

860 865 870 875 880 885

wavenumber [cm-1]

"deep" space (+10°)zenith (+90°)

785 790 795 800 805 810

wavenumber [cm-1]

Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft17.02.2005 : MIPAS-STR tangent points

12:45 UTC 18.9 °S

13:20 UTC 22.6 °S

FalconGeophysica

Continuum from micro window #11 (952.03 – 953.50 cm-1 )

12:45 UTC 18.9 °S

13:20 UTC 22.6 °S

FalconGeophysica

195 200 205 210 215 220 225 230 235 240 245 250 255

Flight 20050217

MIPAS-STR ECMWF UCSE

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2

Flight 20050217

VMR [ppb]

MIPAS-STR (HNO3) SIOUX (NOy - NO) SIOUX (NOy)

0 1 2 3 4 5 6 7 8 9 10

MIPAS-STR (T+2k) MIPAS-STR (T+1k) MIPAS-STR FLASH FISH

Flight 20050217

VMR [ppm]

Forschungszentrum Karlsruhe in der Helmholtz-GemeinschaftSummary (7 October 2005)

Demonstrator : our contribution in-line with schedule

Telemetry: up- and downlink : completed and testedTC5 (for CHRISTA-NF and MARSCHALLS)

2 successful test flights for MIPAS-STR

17.02.2005 flight : profiles for CH1, work on CH2 in progress15.02.2005 flight : level-1 processing in progress

TROCCINOX Science Meeting, Aracatuba, 17 February 2005

ENVISAT Launch : 1 March 2002

Chemistry Payload on ENVISAT: MIPAS, SCIAMACHY and GOMOS

Validation of the ENVISAT measurements :

ESABC (ENVISAT Stratospheric Aircraft and Balloon Campaign)

Earlier validation activities : middle- and high latitudes

February 2005 : Validation in the tropics

Aircraft: Bandeirante, Falcon and the Geophysica

Motivation for validation in the tropics

Interesting region for science, thus accurate satellite data needed

Measurements from Satellite difficult because Low temperatures at the tropopause

Relatively high vertical resolution required

Why aircraft measurements for Envisat validation

Envisat is in a polar sun synchronous orbit

Equator crossing time : 10 and 22 hrs local time

Distance between two orbits about 3000 km

Aircraft can carry a large payload for - internal validation- measurement of complementary species

• Campaign base - Aracatuba - and approximate range of aircraft sorties. • The bold black lines show the area of operation.

Quick-look MIPAS-STR

Quick-looks for the 15.02.05 and 17.02.05 flights The quick-look contains:

Location of the tangent pointsCloud information from DC output of MIPAS-STR

Conclusions

10:00 11:00 12:00 13:00 14:00 15:00

Time UTC

Flight 1, Aracatuba 15.2.05

10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00UTC

Conclusions A – B : 28 limb scans (profiles); channel 1+2;

1st half with clouds below 13 km; 2nd half only clouds at the lower (8 and 9 km) tangent heights.

B – C: a few limb scans after the dive; channel 2 only; Thin clouds at the lower tangent heights (8 and 9 km);

C – A : 10 + 1 limb scans (in between non-linearity measurements) ; channel 2 only Thin clouds at the lower tangent heights (8 and 9 km)

Overpass 12:48 UTC at C “cloud free”

Flight 2, Aracatuba 17.2.05

11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30UTC

B C D E

Conclusions

During the complete flight clouds were in the field of view of the MIPAS-STR instrument and of course also in that of MIPAS-Envisat, except in the last section

The last section was cloud free even at the 8 km tangent point and will be extremely useful for MIPAS-Envisat validation

Preliminary conclusions• Zenith measurements successful

(improved deep-space calibration)• Telemetry: up- and downlink: succesful, but improvement needed for SCOUT • Various other changes (heaters etc.) worked excellent (tropics !!)• Despite various ‘logistical’ problems (extremely short preparation phase in

Aracatuba) and inherent problems with clouds we have obtained good measurements at the time of the Envisat overpass.

2nd shutter for zenith measurements

MIPAS-STR Schedule in Aracatuba

• 05.02.2005: Arrival of the MIPAS-STR team• 11.02.2005: Arrival of the MIPAS dome and interface• 12.02.2005: Installation of MIPAS-ST• 13.02.2005: EMC and engine tests• 15.02.2005: First Envisat validation flight (7:18 LT !!)

TROCCINOX Meeting, Aracatuba, 23 February 2005

Overview of the flights wrt coincidences

with MIPAS and SCIAMACHY OBSERVATIONS

(includes all TROCCINOX flights were accidentally good coincidences were obtained)

Aircraft: Geophysica (Falcon)

(prepared by A. Lengel and C.E. Blom)

01.02.2005SCIA: 13:12 UTC

M55: 15:20 – 19:30 UTC

04.02.2005SCIA: 13:18 UTC

M55: 17:00 – 21:20 UTC

05.02.2005SCIA: 12:46 UTC

M55: 17:00 – 21:30 UTC

08.02.2005SCIA: 12:53 UTC

M55: 13:00 – 17:30 UTC

12.02.2005MIPAS: 12:42 UTCSCIA: 13:12 UTC

M55: 15:20 – 19:30 UTC

M55: 10:18 – 15:05 UTC

M55: 09:40 – 14:05 UTC

M55: 17:55 – 21:45 UTC

Coincidences of TROCCINOX and ENVISAT measurements

Date M55 SCIA MIPAS Comments01.02.05 15:20-19:30 13:12 -- Close to SCIA (> 3 hrs late)

04.02.05 17:00-21:20 13:18 -- 5 hrs after SCIA

05.02.05 17:00-21:30 12:46 -- 5 hrs after SCIA

08.02.05 13:00-17:30 12:53 -- Good coincidence (time/loc)

12.02.05 09:00-13:40 12:27 12:42 1 hr after SCIA and MIPAS

15.02.05 10:18-15:05 12:32 12:48 Good coincidence (time/loc)

17.02.05 09:40-14:15 13:09 13:25 Good coincidence (time/loc)

18.02.05 17:55-21:45 12:38 12:54 5 hrs after SCIA and MIPAS

Conclusions

Excellent coincidences between satellite and the aircraft measurements have been obtained for 4 flights

High quality in-situ and remote sensing data have been obtained

The measurements made during the campaign will provide the most extensive data set for the validationof Envisat in the tropics.

Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft MIPAS-STR IMK-Seminar 7 Oktober 20051...

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