Integrated Dynamics through Earth’s Atmosphere (IDEA)
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Why modeling the space environment?

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Why modeling the space environment

Integrated Dynamics through Earth’s Atmosphere (IDEA)A collaboration between EMC and SEC to integrate meteorological and space weather effectsInitially target upward coupling: the response of the upper atmosphere to lower atmosphere forcingPI:Tim Fuller-RowellCOI: Rashid Akmaev, and Mihail CodrescuNOAA Space Environment Centerand CIRES University of ColoradoCOI: John Retterer, AFRL


Why modeling the space environment

Why modeling the space environment?


Why modeling the space environment

Classical ionospheric storm

Geospace Mission Definition Team Report


Why modeling the space environment

TEC above the CHAMP satellite altitude of 400 km on October 30, 2003

Mannucci, private communication, 2005


Why modeling the space environment

Highly Enhanced Total Electron Content and GPS Phase Fluctuations During October 30, 2003 Storm

Intense GPS Phase Fluctuations (Delta TEC/MIN ) Occur in the Auroral Region and along the Storm Enhanced Total Electron Content (TEC) Gradient.

Basu et al., submitted to GRL 2005


Actual satcom messages

SATCOM Message

064. THE QUICK BROWN FOX JUMPS OVER THE LAZY DOGS BACK 01234567<9"TI 

?65.( VHE UUicK vROWN$GOX JUMPS OVER†THE!McZY(f~d¸z.9g?_f_}_ j›sSL 33

s %E QUICK$BROWN(FOX JUM‘S OVER THE0L—ZY ?OGS‚—CK 0123456789 TIÌU¤M

?67. (THE QUKcK BROWN GOY"JUMPS _V˜Z ™‰.O ÁOx'??.9 :c™l???0SsQJ.ª:.$~

$U ¶S?IcK0 SˆN …? MUM“Û!_VGS* THE LAZY DOGS BACK 01=3456789 TIMES

069. THE QUICK BROWN FOX JUMPS OVER THE LAZY DOGS BACK 0123456789 TIM

Average Signal Level

Receiver Fade Margin

ACTUAL SATCOM MESSAGES

SATCOM MESSAGE ERRORS

15

Ascension Island

12

6 April 1997

9

6

3

Relative Signal Strength (dB)

0

-3

-7

-9

-12

00:21:00

00:22:00

00:23:00

Universal Time (hh:mm:ss)

S. Basu, private communication


Why modeling the space environment

Geomagnetic Storm of 31 March 2001

Tropospheric wet delay =7.5 cm

Seth Gutman, FSL


Why modeling the space environment

How can one do a better modeling job?


Why modeling the space environment

Millstone Hill ISR Measurements

Tides and gravity waves

Goncharenko and Salah, JGR, 1998


Why modeling the space environment

Tides from below

Only propagating tides included in most models (active research)

No planetary waves included yet (active research)

Amplitudes and phases are uncertain by at least 50%

Very important for the D- and E-regions (80-150 km)

Important for the F-region (300-500 km) variability


Why modeling the space environment

Increasing Complexity

  • Models and the computational platforms have become extremely complex

  • Excessive time and resources are dedicated to solving computational rather than scientific problems

  • Need for software infrastructure for Earth system modeling

http://www.esmf.ucar.edu/


Why modeling the space environment

Modeling Framework Goals

  • Leverage common software

  • Solve routine computational problems once

  • Provide efficient data communication

  • Provide model component coupling and sequencing

  • Provide time management

  • Parameter specification

http://www.esmf.ucar.edu/


Why modeling the space environment

Modeling frameworks

Several under development

  • SWMF (http://csem.engin.umich.edu/SWMF)

  • Overture (http://www.llnl.gov/CASC/Overture)

  • ESMF (http://www.esmf.ucar.edu)


Why modeling the space environment

Joule Heating and

Auroral Processes

CTIPE

Major Species Composition

Ion Drag and Molecular

Dissipation

Spectral

Dynamical

Core

Eddy Mixing

Column Physics Interface

Radiative Heating

and Cooling

SMLTM

Parameterized Gravity

Waves

Troposphere: Convection,

Hydrology, Clouds

Planetary Boundary Layer

GFS

Surface: Orography, Drag,

Land-Sea Contrast


Why modeling the space environment

Coupling Layer

ESMF Superstructure

Model Layer:

User Code

Other Component Models …

IPE Model

Neutral Atmosphere Model

Fields and Grids Layer

Low Level Utilities Layer

ESMF Infrastructure

External Libraries

External Infrastructure


Why modeling the space environment

Neutral/Plasma Coupling


Why modeling the space environment

Key Requirement for Space Weather

The physics of the neutral/plasma coupling problem requires a

3D regriding scheme


Why modeling the space environment

Conclusions

We are excited to learn about and plan to use ESMF

First step will be to try the coupling layer (Fields and Grids

and Low Level Utilities)

Second step will be to try the ESMF superstructure and

infrastructure

Full ESMFisation is the final goal


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