How i spent my summer vacation
This presentation is the property of its rightful owner.
Sponsored Links
1 / 34

How I Spent My Summer Vacation PowerPoint PPT Presentation


  • 176 Views
  • Uploaded on
  • Presentation posted in: General

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?.

Download Presentation

How I Spent My Summer Vacation

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


How i spent my summer vacation

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?

  • Environmental applications

    • Ecology issues

    • Pollution issues

  • Emergency applications

  • Military applications


What is stilt

What is STILT?


What is stilt1

What is STILT?


What is stilt2

What is STILT?

  • Transport Model


What is stilt3

What is STILT?

  • Transport Model


What is stilt4

What is STILT?

  • Lagrangian

  • Transport Model


What is stilt5

What is STILT?

  • Lagrangian

  • Transport Model


What is stilt6

What is STILT?

  • Stochastic

  • Lagrangian

  • Transport Model


What is stilt7

What is STILT?

  • Stochastic

  • Lagrangian

  • Transport Model


What is stilt8

What is STILT?

  • Stochastic

  • Time

  • Inverted

  • Lagrangian

  • Transport Model


What is anatex

What is ANATEX?

  • 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

  • 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

  • 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)

  • Two releases

  • 170 ground sampling sites

  • Sampling period of 72 hours


Scientific importance of anatex

Scientific importance of ANATEX


Scientific importance of anatex1

Scientific importance of ANATEX


My work

My Work

  • 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

  • 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

  • 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

  • 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

  • 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


Dynamic grid sizing1

Dynamic Grid Sizing


Dynamic grid sizing2

Dynamic Grid Sizing


Dynamic grid sizing3

Dynamic Grid Sizing


Shifted plumes

Shifted Plumes

Observed Plume

Simulated Plume

*note different concentration scales

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


Results

log10([fL/L])

log10([fL/L])

Results


Results1

log10([fL/L])

log10([fL/L])

Results


Results2

log10([fL/L])

log10([fL/L])

Results


Results3

log10([fL/L])

log10([fL/L])

Results


How i spent my summer vacation

1:1 line

Regression

line


Closing remarks

Closing Remarks


  • Login