spectroscopy of earth’s atmosphere and solar radiation in the spectral range of 400 nm to 1000 nm

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Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm Stephanie Inabnet Edmond Wilson Harding University

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Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm. Stephanie Inabnet Edmond Wilson Harding University. Project Goals. To determine what information can be learned from measuring sunlight through Earth’s atmosphere We will be focusing mainly on - PowerPoint PPT Presentation

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Page 1: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Spectroscopy of Earth’s Atmosphere and Solar

Radiation in the Spectral Range of 400 nm to 1000

nmStephanie Inabnet

Edmond WilsonHarding University

Page 2: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Page 3: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Page 4: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Page 5: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

To determine what information can be learned from measuring sunlight through Earth’s atmosphere

We will be focusing mainly on◦ Identifying peaks in the Solar spectrum◦ Identifying components of Earth’s atmosphere◦ Measuring the atmospheric water vapor in Earth’s

atmosphere over a period of time to determine what short and long range variations occur.

Project Goals

Page 6: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Develop an understanding of the distribution of atmospheric water vapor and some of the methods used for its measurement;

Learn to use the HITRAN 2008 Molecular Spectroscopic Database and other tools to model water vapor and other molecular spectra under various conditions

Design and build a Visible/Near Infrared spectrometer or spectrograph to measure atmospheric water vapor using the Sun as the spectral source in the 600 -1000 nm wavelength range;

Calibrate our instrument for both wavelength and intensity measurements; Carry out measurements of atmospheric water vapor in Searcy, Arkansas

over an extended period of time; Interpret the data collected to produce a comprehensive report of our

findings; Identify and carry out outreach activities to educate the public and

generate excitement about our research; Travel to Bozeman, Montana in May 2014 to participate fully in the National

Student Solar Spectrograph Competition (NSSSC).

Project Objectives

Page 7: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Page 8: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Page 9: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Page 10: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Page 11: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Page 12: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

O3 Hydroxyl Radical N2O CH4 CO2 BrO

Other Gases in Earth’s Atmosphere

Page 13: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Our spectrograph instrument will contribute additional knowledge about PWV and other gases that absorb solar radiation in the wavelength ranges measured.

It will help find answers to the following science questions about Earth’s atmosphere:

o What is the diurnal variation in precipitable water vapor (PWV) in our geographical location?

o What is the weekly variation in PWV in our location?o What is the best model to use to determine PWV using the data that we

collect? After the NSSSC meeting in Bozeman, MT, the instrument will

become part of a new solar studies laboratory at Harding University that will continuously monitor Solar radiation and its interactions with Earth’s atmosphere.

Expected Significance

Page 14: Spectroscopy of Earth’s Atmosphere and Solar Radiation in the Spectral Range of 400 nm to 1000 nm

Arkansas Space Grant Consortium Montana Space Grant Consortium Richardson Grating Laboratories

Acknowledgements

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