Plan of ILAS-II Validation Experiment

Hideaki Nakajima

ILAS-II Science Team Leader

National Institute for Environmental Studies (NIES)

E-mail: hide@nies.go.jp

http://www-ilas2.nies.go.jp/

ILAS-II onboard the ADEOS-II

Main Characteristics of ADEOS-II

Configuration of ILAS-II

Measurement Species of ILAS-II Vertical profiles (ILAS-II: solar occultation sensor)

in polar regions (ADEOS-II: sun-synchronous polar orbit)

• Standard Product:

O3, HNO3, NO2, N2O, CH4, H2O, aerosol(vis.)

• Research Product:

ClONO2, N2O5, CFC-12, CFC-11, CO, C2H6, OCS, NO, O3(isotope), aerosol(IR), temperature, pressure

The following simulated latitudes and local times of the ILAS-II measurements were calculated for the initial condition of ADEOS-II orbit elements on 1 November 2001 available from NASDA: The general feature is the same irrespective of specific years.

Long Term Plan of Balloon Experimentsfor ILAS-II Validation (Kiruna)

• No. 1: FY 2003 (TBD)CLD 1, SAKURA 2, MkIV 1, MIPAS 1, daily ozonesondes

• No. 2: August-September 2005 (TBD)CLD 2, SAKURA 2, other flights, daily ozonesondes

• No. 3: November-December 2007 (TBD)CLD 2, SAKURA 2, other flights,daily ozonesondes

Other satellites: Envisat, SAGE III, POAM III, Odin, ACE, EOS-Aura

Long Term Plan of Balloon Experimentsfor ILAS-II Validation (Syowa)

1) Ozonsonde• 2003 KC (Meisei) 4 Feb.

KC (Meisei) 20 MayECC 50 Jun.-Sep. (QUOBI)ECC 50 Nov.-Dec.Optical ozonesonde (up to 45 km)

5• 2004 KC (Meisei) 24 May-Jul., Nov.-Feb.• 2005 KC (Meisei) 24 May-Jul., Nov.-Feb.

2) Aerosol particle counter• 2003 2 Jan.-Feb.• 2005 2 TBD• 2007 2 TBD

3) Cryogenic sampler• 2003 Dec. - 2004 Jan. 1 or 2

Launch of ADEOS-II and On-orbit Check Out Plan

- Launch of ADEOS-II: Between 10:31-10:47 JST (Japan Standard Time)

on Saturday 14 December 2002 Date window: 14-30 December 2002

Note: The followings will be fixed after the launch.

- Initial Check Out of ILAS-II: 19-22 January 2003- *Early Turn On of ILAS-II: 11, 14, 18, 21 February 2003- *System Total #1: 23-26 March 2003- *System Total #2 (Start of routine operation of all

sensors): 2 April 2003

*ILAS-II measurements over Kiruna will be done.

ADEOS-II ON-ORBIT CHECK OUT PLAN sent from NASDA

The launch date is 14 December 2002

(The country in the parenthesis means the country supporting the flight, Gas: He, )

Total: 5 flights Balloon type

Recovery

CLD 1 flight (Japan) 150Z Russia or FinlandSAKURA 2 flights (Japan) 100Z Russia or FinlandMkIV 1 flight (Japan) 150Z Russia or FinlandMIPAS1 flight (Germany) 150Z Russia or Finland

Ozonesonde measurements: About 30 soundings. Raven 500 m3

daily sounding during the campaign period, by Esrange personnel.

List of Flights

Details of each gondola-1

1. CLD (Gondola's PI: Yutaka Kondo)a) CLD (Y. Kondo)

NO (->NO2), NOy (->HNO3)b) ASTRID-Grab sampler (Andreas Engel)

N2O, CH4, CFC-12, CFC-11c) ECC Ozonesonde (Y. Kondo)

O3d) Aerosol counter (probably) (Terry Deshler)

Aerosole) CAESR (probably) (Frank J. Murcray)

HNO3, O3, CFC112. SAKURA (Gondola’s PI: Takakiyo Nakazawa)

a) SAKURA-Cryogenic sampler(Instrument's PI: T. Nakazawa & Shuji Aoki)

N2O, CH4, CFC-11, CFC-12

Details of each gondola-2

3. MkIV (Gondola's PI: Goeffrey Toon)a) JPL MkIV (G. Toon)

CFC-11, CFC-12, HNO3, CH4, N2O, NO2, O3, H2O ClONO2, N2O5

4. MIPAS (Gondola's PI: Gerald Wetzel)a) MIPAS-B (G. Wetzel & Hermann Oelhaf)

O3, NO2, HNO3, CH4, N2O, H2O, ClONO2, N2O5, CFC-12, CFC-11, C2H6, NO, temperature

ILAS-II Validation Calendar• ILAS-II occultation measurements over Kiruna (67.88N,

21.06E) are calculated.

• ILAS-II occultation measurement location depends on an orbit parameter of ADEOS-II, i.e., local suntime of descending of the equator crossing of ADEOS-II, which should be set as

10:30 am +/- 15 minutes.

• A set of the following validation calendar information was calculated for the initial condition of ADEOS-II orbit elements on 1 November 2001 available from NASDA: The general feature is the same irrespective of specific years.

ILAS-II and GOMOSMeasurements Collocation

ILAS Validation (Feb.-Mar., 1997)Validation Experiments

- Balloon Campaign at Kiruna, Sweden (68 N, 21 E) February - March 1997; 17 large balloon flights

Japan: CLD 2, SAKURA 2, France: LPMA 3, RADIBAL 1, AMON 1, ELHYSA 1, SAOZ 4Germany: MIPAS 2, Triple 1

(Japan: Daily ozonesonde 56)- Balloon Campaign at Fairbanks, Alaska (65 N, 148 W)

April - May 1997; 2 large balloon flightsUSA: MkIV 1, FIRS-2 1

- Other validation experimentsozonesonde, aircraft (Falcon, ER-2 of POLARIS), NDSC, ground-based, (HALOE, SAGE II), etc.

Validation Analysis Resultsfor ILAS Version 5.20

J. Geophys. Res.-Atmospheres: ILAS Special Section, December 2002 Issue

(J. Geophys. Res., Vol.107, No.D24)

14 papers

- Nakajima, H. et al., ILAS Hardware performance- Nakajima, H. et al., Tangent height determination- Yokota, T. et al., ILAS algorithm- Sugita, T. et al., Validation of O3

- Kanzawa, H. et al., Validation of H2O- Kanzawa, H. et al., Validation of CH4 and N2O- Irie, H. et al., Validation of NO2 and HNO3

- Choi, W. et al., CH4 dynamics- Jucks, K. et al., Validation of ILAS using FIRS-2- Pan, L. et al., Validation of H2O using climatology- Saitoh, N. et al., PSC characterization- Terao, S. et al., O3 depletion using satellite match- Toon, G. C. et al., Validation of ILAS using Mk-IV- Wood, S. W. et al., Validation of ILAS using ground FTS

ILAS-II Web Pagehttp://www-ilas2.nies.go.jp/

ILAS-II PersonnelY. Sasano: PI, Project Leader

H. Kobayashi: Sub LeaderH. Nakajima: Science Team Leader

H. Kanzawa: Validation Team LeaderT. Yokota: Algorithm Team Leader