Facilitated action for the geophysical approval of MIPAS-ENVISAT v4.61/v4.62 Ozone information.


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FIRS-2 and IBEX. Examination of MIPAS v4.61 O3 profiles with correlative estimations ... what's more, relative contrasts in the middle of MIPAS and FIRS-2 (or IBEX) O3 values. ...
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Composed action for the geophysical approval of MIPAS-ENVISAT v4.61/v4.62 Ozone information Ugo Cortesi IFAC-CNR, Firenze, Italy Atmospheric Science Conference 2006 ESA-ESRIN – Frascati, Italy, 8-12 May 2006

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MIPAS O 3 Validation – Contributing Teams Name Institute Country Contribution C.E. Blom IMK.FZK Germany AB T. Blumenstock and S. Mikuteit IMK-FZK Germany GB A. Bracher and M. Weber IUP-Un. Bremen Germany SI I. Boyd NIWA-ERI New Zealand GB M. Iarlori Univ. L\'Aquila Italy GB K. Jucks and K. Chance SAO-CfA USA AB J. Kuttipurrath CNRS-LMD France AB J-C Lambert and C. DeClercq BIRA Belgium GB Y. Meijer RIVM The Netherlands GB F.Mencaraglia IFAC-CNR Italy AB H. Oelhaf IMK-FZK Germany AB S. Payan and C. Camy-Peyret LPMA-CNRS France AB C. Piccolo Univ. Oxford UK SI M. Pirre and V. Catoire LPCE-CNRS France AB F. Ravegnani and I. Kostadinov ISAC-CNR Italy AB G. Redaelli Univ. L\'Aquila Italy MA H. Sembhi and J.J. Remedios Univ. Leicester UK GB + SI T. Steck IMK-FZK Germany SI K. Solid and T. Kerzenmacher Univ. Toronto Canada GB C. Varotsos and C. Tzanis Univ. Athens Greece GB C. Vigouroux BIRA Belgium GB A. Waterfall, J. Reburn, R. Siddans RAL UK MA + SI

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MIPAS O 3 coord. approval: OBJECTIVE AND STRATEGY Geophysical acceptance of level-2 operational O 3 information got amid MIPAS ostensible ghastly determination ( Ds = 0.025 cm - 1 ) mission, from July 6 th , 2002 to March 26 th , 2004. Concentrate on disconnected items from the Instrument Processing Facility variants 4.61 and 4.62 (in the future MIPAS IPF v4.61 and v4.62 information). Converging of individual approval comes about gave by the GBMCD, ESABC and MASI groups and taking into account re-examinations sharing basic criteria and devices for the between correlation. Upgrade of the pre-dispatch gauges for exactness and precision of MIPAS Ozone VMR vertical profiles.

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Intercomparison Criteria Baseline criteria for spatial and fleeting coincidence: D s < 300 km D t < 3 hours Additional prerequisite for max. PV contrasts (( D PV/PV) max ~ 15%) to be considered for intercomparison of polar winter estimations. Lessening of vertical smoothing contrasts utilizing averaging parts and regular from the earlier state. Prescribed representation of O 3 vertical profiles: volume blending proportion versus weight. Standard settings for count/correlation of O 3 fractional sections. Utilization of direction estimations to expand the quantity of fortuitous events (with the same pattern collocation criteria embraced for direct incidents).

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Ground-based estimations Balloon and air ship estimations SAGE II (IUP - Univ. Bremen) POAM III (IMK-FZK) ACE (Univ. Oxford) ODIN-SMR (Univ. Oxford) HALOE (Univ. Leicester) GOME (RAL) Balloon-borne instruments Airborne Instruments MIPAS-B (IMK-FZK) Falcon: ASUR (LMD-CNRS) IBEX (IFAC-CNR) M-55: MIPAS-STR (IMK-FZK) FIRS-2 (SAO-CfA) SAFIRE-A (IFAC-CNR) SPIRALE (LPCE-CNRS) GASCOD-A (ISAC-CNR) LPMA (LPMA-CNRS) FOZAN (ISAC-CNR) Pseudo-worldwide correlation with O 3 information from NDSC/GAW stations (BIRA) FT-IR estimations at high and midlatitude stations (BIRA) (IMK-FZK) Lidar estimations (EQUAL project) (RIVM) O 3 sondes at mid-latitudes (Un L\'Aquila) (Un. Athens) (Un. Toronto) Microwave radiometers and lidars at Mauna Kea and Lauder (NIWA-ERI) Satellite estimations Assimilated information ECMWF Ozone data (RAL) MIPAS O 3 correlative information sets CONTINUE =>

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MIPAS O 3 acceptance by ground-based FT-IR estimations METHODOLOGY Comparison of MIPAS v4.61/v4.62 O 3 information with O 3 profiles and segments from five FT-IR stations: Kiruna (lat. 67.8°N) Jungfraujoch (lat. 46.5°N) Wollongong (lat. 34.4°N) Lauder (lat. 45.0°S) Arrival Heights (lat. 77.5°S) Baseline collocation criteria (somewhat casual for Wollongong station: D s < 500 km). MIPAS O 3 profiles minimized to lower vertical determination, by applying FTIR AKM, and contrasted and the mean of assembled FTIR estimations recorded inside the picked worldly happenstance measure. O 3 halfway section limits characterized, considering MIPAS least elevations (mean worth ~ 12 km ) and FT-IR affectability (sensible up to ~ 40 km for O 3 )

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BIRA-IASB IMK-FZK MIPAS O 3 acceptance by ground-based FT-IR estimations Comparison of O 3 profiles: RESULTS

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BIRA-IASB IMK-FZK MIPAS O 3 approval by ground-based FT-IR estimations Comparison of O 3 incomplete segments: RESULTS Statistics1: D s < 300 km, D t < 3h Statistics2: D s < 500 km, D t < 3h Statistics3: D s < 200 km, D t < 3h Station Pressure Range Statistics1 Statistics2 Statistics3 Kiruna 2 –168 hPa +1.3  6.3% [24] - - Jungfraujoch 3 – 214 hPa + 0.3  5.6% [12] +0.8  4.7% [26] - Wollongong 3 – 196 hPa +1.9  2.3% [4] +3.4  3.9% [19] - Lauder 2 – 185 hPa - 1.6  3.5% [17] - 1.1  3.4% [46] - Arrival Heights 2 – 163 hPa - 4.4  11.1% [16] - 0.8  13.5% [39] 0.5  5.6 % [9]

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MIPAS O 3 approval by ground-based FT-IR estimations CONCLUSIONS In the area of the O 3 greatest, around 10 hPa, MIPAS and FTIR profiles are in great understanding for every one of the stations Significant inclination around 90 hPa at Wollongong. The standard deviation is inside the consolidated arbitrary mistake from the maximum furthest reaches of the examination down to  10 hPa for Arrival Heights and down to  60 hPa for every single other station.

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MIPAS O 3 acceptance by lidar estimations (EQUAL task) Methodology Comparison of MIPAS v4.61/v4.62 O 3 information with O 3 profiles from ground-based lidar estimations got by 11 stations of the EQUAL venture (ENVISAT QUality Assessment by Lidar) in the period 6 th July 2002 to 26 th March 2004. Spatial and fleeting fortuitous event criteria:  D s < 800 km, D t < 20 h  D s < 400 km, D t < 10 h  D s < 200 km, D t < 5 h Collocated sets of MIPAS and lidar O 3 profiles spoke to utilizing number thickness as an element of elevation: MIPAS profiles  altitude lattice recreation utilizing ECMWF information

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Comparison of MIPAS and lidar O 3 profiles: RESULTS ALL CASES

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Comparison of MIPAS and lidar O 3 profiles: RESULTS LATITUDE DEPENDENCY

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MIPAS O 3 approval by lidar estimations CONCLUSIONS Very great assention amongst MIPAS and LIDAR O 3 mean profiles: Relative diff. inside 5% 20 - 40 km Relative diff. inside 15-20% below  20 km or more  40 km Larger contrasts in the tropical UTLS (up to 40% and higher at  15-20 km) and in the polar stratosphere (- 10% < D O 3/O 3 < –5% at 30 km)

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Pseudo-worldwide examination with O 3 information from NDACC stations METHODOLOGY Comparison of MIPAS v4.61 O 3 information with correlative estimations from: -39 ozonesondes stations (O3S) -8 lidars (LID) -7 microwave radiometers (MWR) Spatial and fleeting fortuitous event criteria: D s < 500 km, D t < 6 h (O3S, LID) D s < 500 km, D t < 2 h (MWR) Comparison of O 3 profiles and fractional sections restricted to 2003 information Error spending plan including: (a) MIPAS and ground-based instrument blunders (b) Vertical smoothing mistake (b) Horizontal smoothing mistake (c) Error because of geolocation contrasts Estimates taking into account acclimatized O 3 fields by the Belgian Assimilation System of Chemical Observations from ENVISAT (BASCOE).

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MIPAS versus NDACC O 3 35.0-15.0 hPa PC Pseudo-worldwide correlation with O 3 information from NDACC stations RESULTS: time arrangement of O 3 incomplete segments contrasts O 3 fractional sections characterized on 5 layers extending from 75 to 0.8 hPa (  18 - 50 km) Time arrangement of the rate relative distinction in O 3 halfway segments amongst MIPAS and ozone sondes information from Western and Central Europe stations

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Pseudo-worldwide examination with O 3 information from NDACC stations CONCLUSIONS Observed contrasts: Lower stratosphere =>  brief behaviour (chemistry & elements) Upper stratosphere =>  zonal behaviour (photochemistry) Comparison blunder spending plan: Errors because of MIPAS > vulnerability related to > mistakes because of vertical horizontal smoothing geolocation contrasts smoothing contrasts The diverse mistake segments for the most part record for the watched contrasts in O 3 fractional segments, with the accompanying special cases: In the 75-35 hPa layer at mid-scopes, equator and tropics In the 35-15 hPa layer at equator,tropics and Antarctica amid O 3 opening In the 3-0.8 hPa layer at European stations

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Validation of MIPAS O 3 profiles via air ship/inflatable borne estimations MIPAS-B Balloon-borne form of the MIPAS-ENVISAT instrument, worked by IMK-FZK. Field of perspective, otherworldly range, phantom determination, radiometric clamor like MIPAS-ENVISAT Correlative measurements: Aire-Sur-L\'Adour 43.5°N 24 Sep 2002 Kiruna 67.8°N 20/21 Mar 2003 03 Jul 2003 High quality coordinating inside standard collocation criteria: 300 km, 3 h Max PV rel. diff. at the digression focuses  15%

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IMK-FZK Comparison of MIPAS-ENVISAT and MIPAS-B O 3 profiles: RESULTS

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IMK-FZK Comparison of MIPAS-ENVISAT and MIPAS-B O 3 profiles: RESULTS

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Comparison of MIPAS O 3 profiles with inflatable borne FT-FIR information FIRS-2 and IBEX Comparison of MIPAS v4.61 O 3 profiles with correlative estimations performed by high determination FT-FIR spectrometers amid inflatable flights at mid-scopes: FIRS-2 (Far InfraRed Spectromeer, CfA-SAO, USA): Fort Sumner (34°N), Sep 19-20, 2003 IBEX (Infrared Balloon EXperiment, IFAC-CNR, Italy), Trapani (38°N), Sep 29-30, 2002 Methodology: Matching pair

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