Information for Atmospheric Chemistry and Climate Change

Theodore S. Dibble

Materials from the 2006 Workshop in the Chemical Sciences (Environmental)

Climate Science Toolkit

1) - Detailed information about climate changed from the American Chemical Society, the world's largest scientific society, including:
     Greenhouse Gases
     Energy Balance and Planetary Temperatures

Calculators by T. S. Dibble

1)           Rate Constants for Termolecular Reactions  - This Excel spreadsheet is designed to take input from the Jet Propulsion Laboratory Data Evaluation (see link below) and compute effective second order rate constants for pressure-dependent reactions. The spreadsheet has notes which explain how to use the data from the JPL Data Evaluation.
      (JPL Data Evaluation #15)  - See pages 2.1 - 2.3 (pp. 134-136 of the full pdf file) of this document for instructions, and pages 2.4 - 2.7 for input parameters.

2)          Calculating Solar Zenith Angle   - Excel file fof calculating angle of the sun's rays from the vertical, called the Solar Zenith Angle (SZA), and explained here. Requires input of date, Greenich Mean Time, latitude, and longitude. Latitude and Longitude can be determined via these links for world cities and for US cities or zip codes.

3)           Calculating Photolysis Rates - Excel file for ground-level calculations at various solar zenith angles. Data for other altitudes may be found in Chemistry of the Upper and Lower Atmosphere by Barbara J. Finlayson-Pitts and James N. Pitts, Jr.
     Input data may be obtained from that text or Section 4 (pp 162-272 of the pdf file) of the JPL Data Evaluation.

4)        Spectra of Photochemically Active Compounds - Graphs of spectra and tables of absorption cross-sections for selected compounds (Excel format).
            - CFCs and related compounds
            -  Nitrogen Reservoir Species

Maps of Ozone

           Total Ozone - Column ozone data from the satellite instrument called TOMS, the Total Ozone Mapping Spectrometer.  Follow the development of the ozone hole by calling up the IMAGES of the South Pole from late August through October, or the North Pole from January through March.

           Air Quality Conditions  - EPA color-coded maps showing records and predictions of air quality (ozone and particles) from across the United States.

Health Effects of EPA Criteria Pollutants

(from the Utah Department of Environmental Quality)

 Atmospheric Chemistry Course

Atmospheric Chemistry Links of Interest to the Dibble Group
T. S. Dibble web page

ESF Chemistry Home page
ESF Home page

This material is based upon work supported by the National Science Foundation under Grants No. 0087057 and 0937626. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.