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Climate Change in the Arctic Ocean NABOS 2013

Radiative transfer in the atmosphere Tobias Wolf, Nansen Environmental and Remote Sensing Center. Climate Change in the Arctic Ocean NABOS 2013. What have we looked at so far and what are we going too look at now?. Liou, K.N. (2002). An Introduction to atmospheric radiation. Chapter 1.

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Climate Change in the Arctic Ocean NABOS 2013

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  1. Radiative transfer in the atmosphere Tobias Wolf, Nansen Environmental and Remote Sensing Center Climate Change in the Arctic OceanNABOS 2013

  2. NABOS 2013 What have we looked at so far and what are we going too look at now? Liou, K.N. (2002). An Introduction to atmospheric radiation

  3. NABOS 2013 Chapter 1 1. Interaction of gases and particles with radiation2. Mathematical description of radiative transfer 3. Clouds, clouds, clouds 4. Why do we care about top of the atmosphere radiative forcing?

  4. Scattering Rayleigh scattering: Mie scattering: Geometric Optics: (1) Interactions

  5. Scattering II Liou, K.N. (2002). An Introduction to atmospheric radiation (1) Interactions

  6. Scattering III Olseth, J.A. (2013). GEOF329, UiB (1) Interactions

  7. NABOS 2013 Emission Schubert , E.F. (????). lightemittingdiodes.org (1) Interactions

  8. NABOS 2013 Absorption Olseth, J.A. (2013). GEOF329, UiB (1) Interactions

  9. NABOS 2013 Chapter 2 1. Interaction of gases and particles with radiation2. Mathematical description of radiative transfer 3. Clouds, clouds, clouds 4. Why do we care about top of the atmosphere radiative forcing?

  10. NABOS 2013 A beam of radiation What are the interactions to change the strength of ??? Extinction: Emission: Liou, K.N. (2002). An Introduction to atmospheric radiation (2) Mathematics

  11. NABOS 2013 A simplified example Let us assume no emission and no multiple scattering (We will come back to that one) Optical depth Optical path Liou, K.N. (2002). An Introduction to atmospheric radiation (2) Mathematics

  12. NABOS 2013 The full radiative transfer equation What are the processes leading to radiation in a random direction??? Liou, K.N. (2002). An Introduction to atmospheric radiation (2) Mathematics

  13. NABOS 2013 Let’s combine all of that in one equation! Beam of radiation Single scattering Multiple scattering emission Liou, K.N. (2002). An Introduction to atmospheric radiation (2) Mathematics

  14. NABOS 2013 Radiative transfer calculation is crazy expensive. But why, what do you think??? Pencil of radiation Single scattering Multiple scattering emission Liou, K.N. (2002). An Introduction to atmospheric radiation (2) Mathematics

  15. NABOS 2013 Chapter 3 1. Interaction of gases and particles with radiation2. Mathematical description of radiative transfer 3. Clouds, clouds, clouds 4. Why do we care about top of the atmosphere radiative forcing?

  16. Effects of clouds on incoming SW radiation Liou, K.N. (2002). An Introduction to atmospheric radiation (3) Clouds

  17. NABOS 2013 Effects of clouds on incoming SW radiation Olseth, J.A. (2013). GEOF329, UiB (1) Interactions

  18. Effects of clouds on outgoing LW radiation Arya, S., Introduction to Micrometeorology, 2001 (3) Clouds

  19. NABOS 2013 Chapter 4 1. Interaction of gases and particles with radiation2. Mathematical description of radiative transfer 3. Clouds, clouds, clouds 4. Why do we care about top of the atmosphere radiative balance?

  20. NABOS 2013 Back to basics Liou, K.N. (2002). An Introduction to atmospheric radiation (4) Forcing

  21. Planetary Albedo Liou, K.N. (2002). An Introduction to atmospheric radiation (4) Forcing

  22. NABOS 2013 Thank you for your attention

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