StratosphereTroposphere Analyses of Regional Transport START Experiment - PowerPoint PPT Presentation

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StratosphereTroposphere Analyses of Regional Transport START Experiment

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Title: StratosphereTroposphere Analyses of Regional Transport START Experiment


1
Stratosphere-Troposphere Analyses of Regional
Transport (START) Experiment
Investigators Laura Pan (PI, ACD/TIIMES) Ken
Bowman (Texas AM) Mel Shapiro (NOAA/NCARMMM) Bill
Randel (ACD) Rushan Gao (NOAA) Teresa Campos
(ACD/EOL) Chris Davis (MMM) Sue Schauffler (ACD)
Collaborators Chris Barnet Jennifer
Wei (NOAA/NESDIS Satellite data)
Satellite data support Sylvia Murphy (ACD)
Frontal Cloud - flt 2005-12-14
2
Acknowledgments
Jorgen Jensen Al Schanot Al Cooper Jeff
Stith Henry Boynton, Bob Maxson, Lowell
Genzlinger and Ed Ringleman Rit Carbone Brian
Ridley
Enter the Rockies - FLT 051209
3
Upper Troposphere Lower Stratosphere - A
region of coupled dynamics, chemistry and cloud
microphysics
4
HIAPER Progressive Science Mission (22 November-
23 December, 2005)
Daybreak before take off 2005-12-21
5
NASA A-Train Satellites
6
Science Objectives
  • Characterize the dynamical structure of the
    extratropical tropopause in and around the
    subtropical jet
  • Identify the chemical transition from the
    troposphere to stratosphere across the
    extratropical tropopause.
  • Investigate the irreversible STE mixing
    produced by multiple scale dynamical processes

Low pass of Rockies- Flt 2005-12-07
7
AIRS Ozone on 250 hPa (in 1x1 degree average)
May 15, 2004
Monthly mean May, 2004
8
AIRS Ozone Cross Section (1x1 degree average)
May 15, 2004, Lon160 E
9
Chemical Transition using Relative Altitude
(RALT) and Tracer-Tracer Correlations (TTC)
10
Example NASA ER-2, POLARIS July 10, 1997
Pan et al., 2004
11
The Relative Altitude Coordinates (to locate
the chemical transition between St-Tr)
CO (RALT)
CO (z)
CO (pv)
Pan et al., 2004
12
ER-2 data O3-H2O (POLARIS)
13
Model Evaluation
WACCM3
1.9x2.5
4x5
14
START Experiment Highlights
  • Four successful flights (7-9 hour each, out of 6
    planned)
  • Measurements O3, H2O, CO, in addition to
    meteorological parameters (and other possible
    tracers such as CN)
  • Near real time satellite data via collaboration
    with AIRS science team
  • Sampled several cases of stratospheric intrusion
  • Obtained information on mixing and STE
  • Valuable data for AIRS ozone validation

Meteor Crater - Flight 2005-12-07
15
Status of Data and Data Analyses
  • Ozone data became available during the
    experiment. Intercomparison with CMDL ozonesonde
    show excellent agreement.
  • Initial analyses and comparison with satellite
    data, meteorological analyses data have been
    carried out
  • Water vapor preliminary data became available 2
    weeks ago, further calibration in progress
  • CO data is still under Q/C verification
  • Trajectory analyses in progress

16
Ozone Validation with CMDL Ozonesonde
17
START Flight 2 (502RF03 -051207)
18
Flight RF03 - 2005-12-07
19
START Flight 2 (RF03 -051207)
20
Enhancement of Ozone at Lower Troposphere due to
the Intrusion
21
(No Transcript)
22
(No Transcript)
23
START Flight 4 RF08 - 2005-12-14
24
(No Transcript)
25
START Flight 4 RF08 - 2005-12-14
26
(No Transcript)
27
START Flt 4 2005-12-14
28
START Flight 1 2005-12-01 (502RF01)
29
START Flight 1 2005-12-01 (502RF01)
30
Stratospheric Intrusion and the Separation of the
Thermal and Dynamical Tropopause
31
O3 (z)
O3 (RALT)
H2O (RALT)
H2O (z)
32
Summary
  • Results from the START experiment
  • Demonstrated the capability of HIAPER in UTLS
    studies
  • Initial data provided good validation for the
    satellite retrievals
  • Sampled multiple cases of stratospheric
    intrusions. Characterization of the air mass in
    the region of intrusion using tracer-tracer
    correlation and trajectory model is in progress

33
Thank You !
Shadows of Monument Valley - Flight 051209
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