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 Experiments
for 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 Experiments
for ILAS-II Validation (Syowa)
1) Ozonsonde
• 2003
•
•
2004
2005
KC (Meisei)
4
Feb.
KC (Meisei)
20
May
ECC
50
Jun.-Sep. (QUOBI)
ECC
50
Nov.-Dec.
Optical ozonesonde (up to 45 km)
5
KC (Meisei)
24
May-Jul., Nov.-Feb.
KC (Meisei)
24
May-Jul., Nov.-Feb.
2) Aerosol particle counter
• 2003
• 2005
• 2007
2
2
2
3) Cryogenic sampler
• 2003 Dec. - 2004 Jan.
1 or 2
Jan.-Feb.
TBD
TBD
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
List of Flights
(The country in the parenthesis means the country supporting the flight,
Gas: He, )
Total: 5 flights
Balloon type
CLD
SAKURA
MkIV
MIPAS
1 flight (Japan)
2 flights (Japan)
1 flight (Japan)
1 flight (Germany)
150Z
100Z
150Z
150Z
Recovery
Russia or Finland
Russia or Finland
Russia or Finland
Russia or Finland
Ozonesonde measurements: About 30 soundings. Raven 500 m3
daily sounding during the campaign period, by Esrange
personnel.
Details of each gondola-1
1. CLD
a) CLD
(Gondola's PI: Yutaka Kondo)
(Y. Kondo)
NO (->NO2), NOy (->HNO3)
b) ASTRID-Grab sampler
(Andreas Engel)
N2O, CH4, CFC-12, CFC-11
c) ECC Ozonesonde
(Y. Kondo)
O3
d) Aerosol counter (probably)
(Terry Deshler)
Aerosol
e) CAESR (probably)
(Frank J. Murcray)
HNO3, O3, CFC11
2. 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 GOMOS
Measurements 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 4
Germany: MIPAS 2, Triple 1
(Japan:
Daily ozonesonde 56)
- Balloon Campaign at Fairbanks, Alaska (65 N, 148 W)
April - May 1997; 2 large balloon flights
USA:
MkIV 1, FIRS-2 1
- Other validation experiments
ozonesonde, aircraft (Falcon, ER-2 of POLARIS), NDSC,
ground-based, (HALOE, SAGE II), etc.
Validation Analysis Results
for 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 Page
http://www-ilas2.nies.go.jp/
ILAS-II Personnel
Y. Sasano: PI, Project Leader
H. Kobayashi: Sub Leader
H. Nakajima: Science Team Leader
H. Kanzawa: Validation Team Leader
T. Yokota: Algorithm Team Leader