How i spent my summer vacation
Download
1 / 34

How I Spent My Summer Vacation - PowerPoint PPT Presentation


  • 236 Views
  • Uploaded on

How I Spent My Summer Vacation. By: Dylan Boyd High School Math Teacher and Harvard RET Participant. Modeling the Across North America Tracer Experiment (ANATEX) for purposes of evaluating the accuracy of the STILT atmospheric particle transport model. Who cares if STILT’s accurate or not?.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' How I Spent My Summer Vacation' - miyoko


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
How i spent my summer vacation

How I Spent My Summer Vacation

By: Dylan Boyd

High School Math Teacher and Harvard RET Participant


Modeling the Across North America Tracer Experiment (ANATEX) for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


Who cares if stilt s accurate or not
Who cares if STILT’s accurate or not? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Environmental applications

    • Ecology issues

    • Pollution issues

  • Emergency applications

  • Military applications


What is stilt
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


What is stilt1
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


What is stilt2
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Transport Model


What is stilt3
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Transport Model


What is stilt4
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Lagrangian

  • Transport Model


What is stilt5
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Lagrangian

  • Transport Model


What is stilt6
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Stochastic

  • Lagrangian

  • Transport Model


What is stilt7
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Stochastic

  • Lagrangian

  • Transport Model


What is stilt8
What is STILT? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Stochastic

  • Time

  • Inverted

  • Lagrangian

  • Transport Model


What is anatex
What is ANATEX? for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Across North America Tracer Experiment (1987)

  • Three tracers released from two locations

  • 33 releases over three months

  • 77 ground sample sites

  • 5 towers

  • 12 “remote” sites


Anatex tracer release
ANATEX Tracer Release for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Perfluorocarbons (PMCH, PTCH, oPDCH)

  • Inert

  • Nondepositing

  • Nontoxic

  • High degree of analytical detection sensitivity

  • Used previously in CAPTEX, and subsequently in ETEX and TRANSALP


Anatex tracer sampling
ANATEX Tracer Sampling for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Programmable Atmospheric Tracer Sampler (PATS)

  • Constant mass flow pump draws air through sample tubes packed with adsorbent

  • Sample tubes were desorbed by resistance heating of the tubes

  • Analyses performed by gas chromatography-electron capture


European tracer experiment etex
European Tracer Experiment (ETEX) for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Two releases

  • 170 ground sampling sites

  • Sampling period of 72 hours


Scientific importance of anatex
Scientific importance of ANATEX for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


Scientific importance of anatex1
Scientific importance of ANATEX for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


My work
My Work for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Simulate the ANATEX experiment with the STILT model

  • Render the ANATEX data and the STILT output into comparable formats

  • Perform analyses to evaluate the modeling accuracy of STILT


My work1
My Work for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Simulate the ANATEX experiment with the STILT model

  • Render the ANATEX data and the STILT output into comparable formats

  • Perform analyses to evaluate the modeling accuracy of STILT


My work2
My Work for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Simulate the ANATEX experiment with the STILT model

  • Render the ANATEX data and the STILT output into comparable formats

  • Perform analyses to evaluate the modeling accuracy of STILT


My work3
My Work for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Simulate the ANATEX experiment with the STILT model

  • Render the ANATEX data and the STILT output into comparable formats

  • Perform analyses to evaluate the modeling accuracy of STILT


My work4
My Work for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

  • Simulate the ANATEX experiment with the STILT model

  • Render the ANATEX data and the STILT output into comparable formats

  • Perform analyses to evaluate the modeling accuracy of STILT


Dynamic grid sizing
Dynamic Grid Sizing for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


Dynamic grid sizing1
Dynamic Grid Sizing for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


Dynamic grid sizing2
Dynamic Grid Sizing for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


Dynamic grid sizing3
Dynamic Grid Sizing for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


Shifted plumes
Shifted Plumes for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

Observed Plume

Simulated Plume

*note different concentration scales

(simulation should be multiplied by factor of 10!!!)


Results

log for purposes of evaluating the accuracy of the STILT atmospheric particle transport model10([fL/L])

log10([fL/L])

Results


Results1

log for purposes of evaluating the accuracy of the STILT atmospheric particle transport model10([fL/L])

log10([fL/L])

Results


Results2

log for purposes of evaluating the accuracy of the STILT atmospheric particle transport model10([fL/L])

log10([fL/L])

Results


Results3

log for purposes of evaluating the accuracy of the STILT atmospheric particle transport model10([fL/L])

log10([fL/L])

Results


1:1 line for purposes of evaluating the accuracy of the STILT atmospheric particle transport model

Regression

line


Closing remarks

Closing Remarks for purposes of evaluating the accuracy of the STILT atmospheric particle transport model


ad