﻿ Astronomy Picture of the Day [1]Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2021 September 15 [2]The picture shows a the paths of tropical storms across Earth from 1985 to 2005. Please see the explanation for more detailed information. Cyclone Paths on Planet Earth Image Credit: [3]National Hurricane Center, [4]NOAA, [5]NASA; Processing: [6]Nilfanion (via [7]Wikipedia) Explanation: Where on Earth do cyclones go? Known as [8]hurricanes when in the Atlantic Ocean and typhoons when in the Pacific, the [9]featured map shows the path of all major storms from 1985 through 2005. The map shows graphically that [10]cyclones usually occur over water, which makes sense since evaporating warm water [11]gives them energy. The map also shows that [12]cyclones never cross -- and rarely approach -- the [13]Earth's equator, since the [14]Coriolis effect goes to zero there, and cyclones need the Coriolis force to circulate. The [15]Coriolis force also causes [16]cyclone paths to arc away from the equator. Although long-term trends remain a [17]topic of research, evidence indicates that [18]hurricanes have become, on the average, [19]more powerful in the North Atlantic over the past 30 years, and their power is [20]projected to keep increasing. Follow APOD on Instagram in: [21]English, [22]Farsi, [23]Indonesian, [24]Persian, or [25]Portuguese Tomorrow's picture: off the coast __________________________________________________________________ [26]< | [27]Archive | [28]Submissions | [29]Index | [30]Search | [31]Calendar | [32]RSS | [33]Education | [34]About APOD | [35]Discuss | [36]> __________________________________________________________________ Authors & editors: [37]Robert Nemiroff ([38]MTU) & [39]Jerry Bonnell ([40]UMCP) NASA Official: Phillip Newman [41]Specific rights apply. [42]NASA Web Privacy Policy and Important Notices A service of: [43]ASD at [44]NASA / [45]GSFC & [46]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2109/StormPaths_NHC_8000.jpg 3. https://www.nhc.noaa.gov/ 4. https://www.noaa.gov/ 5. https://www.nasa.gov/ 6. https://commons.wikimedia.org/wiki/User:Nilfanion 7. https://www.wikipedia.org/ 8. https://www.aoml.noaa.gov/hrd-faq/ 9. https://commons.wikimedia.org/wiki/File:Global_tropical_cyclone_tracks-edit.jpg 10. https://gpm.nasa.gov/education/articles/what-hurricane-typhoon-or-tropical-cyclone 11. https://www.pbs.org/wgbh/nova/article/hurricane-power/ 12. https://www.nhc.noaa.gov/cyclones/ 13. https://en.wikipedia.org/wiki/Equator 14. https://en.wikipedia.org/wiki/Coriolis_effect 15. https://www.youtube.com/watch?v=aeY9tY9vKgs 16. https://apod.nasa.gov/apod/ap040406.html 17. https://www.gapphotos.com/images/WebPreview/0100/0100358.jpg 18. https://spaceplace.nasa.gov/hurricanes/en/ 19. https://www.sciencenews.org/article/hurricanes-frequency-danger-climate-change-atlantic 20. https://www.gfdl.noaa.gov/global-warming-and-hurricanes/ 21. https://www.instagram.com/astronomypicturesdaily/ 22. https://www.instagram.com/skypixapod/ 23. https://www.instagram.com/apod.id/ 24. https://www.instagram.com/avastarapod/ 25. https://www.instagram.com/apodbrasil/ 26. https://apod.nasa.gov/apod/ap210914.html 27. https://apod.nasa.gov/apod/archivepix.html 28. https://apod.nasa.gov/apod/lib/apsubmit2015.html 29. https://apod.nasa.gov/apod/lib/aptree.html 30. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 31. https://apod.nasa.gov/apod/calendar/allyears.html 32. https://apod.nasa.gov/apod.rss 33. https://apod.nasa.gov/apod/lib/edlinks.html 34. https://apod.nasa.gov/apod/lib/about_apod.html 35. http://asterisk.apod.com/discuss_apod.php?date=210915 36. https://apod.nasa.gov/apod/ap210916.html 37. http://www.phy.mtu.edu/faculty/Nemiroff.html 38. http://www.phy.mtu.edu/ 39. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 40. http://www.astro.umd.edu/ 41. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 42. https://www.nasa.gov/about/highlights/HP_Privacy.html 43. https://astrophysics.gsfc.nasa.gov/ 44. https://www.nasa.gov/ 45. https://www.nasa.gov/centers/goddard/ 46. http://www.mtu.edu/