1 / 21

Non rotating planet

Non rotating planet. Rotating planet. Wind belts: symmetric case, and then land effects. Angular momentum. Change in length of day (10 -3 s). time. Length of the day varies by milliseconds due to climate. Wind as a function of latitude and height. Dec/Jan/Feb. Jun/Jul/Aug.

eben
Download Presentation

Non rotating planet

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Non rotating planet

  2. Rotating planet

  3. Wind belts: symmetric case, and then land effects

  4. Angular momentum Change in length of day (10-3s) time • Length of the day varies by milliseconds due to climate

  5. Wind as a function of latitude and height Dec/Jan/Feb Jun/Jul/Aug • Note the stronger jet in the winter hemisphere

  6. Temperature as a function of latitude and height Dec/Jan/Feb Jun/Jul/Aug Note the warmer summer hemisphere (duh)

  7. Northern hemisphere winter (Dec Jan Feb) – Sea level pressure Icelandic Low Aleutian Low Siberian High

  8. Northern hemisphere winter (Dec Jan Feb) – Surface wind Note the approximate geostrophic balance (c.f. pattern of surf. pressure)

  9. Northern hemisphere Winter circulation – pressure at 3km What is the Geostrophic balance here?

  10. – pressure at 5.5km Northern hemisphere Winter circulation What is the Geostrophic balance here?

  11. – pressure at 9.0km Northern hemisphere Winter circulation What is the Geostrophic balance here?

  12. Northern hemisphere - temperature difference from zonal average in lower troposphere. (0 to 5 km)

  13. Heat flux from surface to atmosphere (Winter) Wm-2 Cooling over land, heating over ocean (up to 4000W/m2 in a big storm)

  14. Northern hemisphere winter (Dec Jan Feb) – Precipitation rate Precipitation organized into storm tracks in Atlantic and Pacific basins

  15. Storm tracks in the atmosphere Density of tracks of storms in DJF, northern hemisphere

  16. Southern hemisphere winter (Jun Jul Aug) – Sea level pressure Pattern is much more zonal (east west) than Northern hemisphere

  17. Southern hemisphere winter (Jun Jul Aug) – Surface wind Note the approximate geostrophic balance (in southern hemisphere!)

  18. Southern hemisphere winter circulation- pressure at 5.5km What is the Geostrophic balance here?

  19. Southern hemisphere: heat flux from surface to atmosphere (Winter) Wm-2

  20. Southern hemisphere winter precipitation (ish!) What about the pattern here?

  21. Storm tracks in the atmosphere Density of tracks of storms in JJS, southern hemisphere Distributions of storm are much more uniform

More Related