ATMS/PHYS 497 Senior Thesis [main page] [assignments].

 


Summer Work:

August 16th

Algorithm for the photoacoustic instrument. Click on image for larger version.

 

August 15th

Uncertainty discussion for BAM PM10 measurements, AOD, surface albedo, apparent boundary layer height, and boundary layer height.
Click on images for a larger version.


August 11th

Algorithm for computing the Allan deviation for the Teensy audio card, photoacoustic cell application. Click on image for a larger version.
Here's a paper that shows calculation for a photoacoustic instrument.

August 8th

Aerosol optical depth relation to aerosol sources, and aerosol processing by clouds. We will need the Angström coefficient calculated for wavelength pairs
380nm and 870 nm; 440 nm and 870 nm; 440 nm and 675 nm; 870 nm and 1640 nm, with the goal in mind of studying aerosol size and amount, and relationship
to the time of day. We're aiming at making the graph on the lower left, using the equation on the lower right. Click on image for larger version.

August 7th

Boundary layer height papers: Paper 1, Paper 2.
Extended discussion of boundary layer dynamics.
Paper on clear sky vs cloudy sky determination from pyranometer measurements.

 

August 4th and 7th

Teensy audio card sampling properties, and explanation of the observed lock in spectrum. Click on images for larger version. Excel spreadsheet for the plot.
Here's a sketch to test it.


August 3rd

Photoacoustic references.
How to clamp input voltage level to an analog to digital converter range of measurement.

August 2nd

Application note on protecting the analog to digital convertor. (local backup)

July 31st

Teensy audio card schematic and layout. Click image for larger version.

July 20th

Spectrometer transfer function theory. Click on image for larger version.

July 17th

Relationships for PM2.5, PM10, PM, aerosol optical depth (AOD), and planetary boundary layer height. Click on images for larger version.

July 14th

Lockin amplifier basics. Click on image for larger version.

July 3rd

How to calculate absorption optical depth for ozone, water vapor, nitrogen dioxide, and carbon dioxide. Click on image for larger version.


June 27th

Summary of hand held albedo meter road map. Click on image for larger version.

June 5th

Summary of project activity. Click on image for larger version.

Low and high pass RC filters for electronic filtering. Click on image for larger version.

 

May 25th

Photoacoustic instrument and aerosol discussion. Click on image for larger version.

 

Weeks 5 through 8: 21 February through 13 March

Prepare a rough draft of your introductory chapter and turn it in by email (electronic version), as time permits with acquiring your data.
We will update on Friday.

We meet and discuss progress and issues, types of data being acquired, timing of that data acquistion, and issues that are preventing progress.

Week 4: 13 February

Prepare a rough draft of your introductory chapter and turn it in by email (electronic version).

Board from discussion about downwelling IR and satellite remote sensing. Click on it for a larger version.

Week 3: 6 February

Look at the syllabus. Prepare your topic, firm up the title and idea. Collect relevant research papers. Prepare for assignment 1.
We will meet in class on Friday from 1 pm to 3 pm (maximum time).

Week 2: 30 January

Aaron and Zoey presented assignment 1. Michael and Chasity will do so next week. Michael presented the microspectrometer later in the day.

Week 1: 23 January

Look at the syllabus. Prepare your topic, firm up the title and idea. Collect relevant research papers. Prepare for assignment 1.