Episodes of rain containing vast amounts of red algal spores in India
For other uses, see Red Rain.
Rain water sample (left) and after the particles settled (right). Dried sediment (centre)
The Kerala red rain phenomenon was a blood rain event that occurred in Wayanad district of southern Indian state Kerala on Monday, 15 July 1957 and the colour subsequently turned yellow[1] and also 25 July to 23 September 2001, when heavy downpours of red-coloured rain fell sporadically in Kerala, staining clothes pink.[2] Yellow, green and black rain was also reported.[3][4][5] Coloured rain was also reported in Kerala in 1896 and several times since,[6] most recently in June 2012,[7] and from 15 November 2012 to 27 December 2012 in eastern and north-central provinces of Sri Lanka.[8][9][10][11]
Following a light-microscopy examination in 2001, it was initially thought that the rains were coloured by fallout from a hypothetical meteor burst,[6] but a study commissioned by the Government of India concluded that the rains had been coloured by airborne spores from a locally prolific terrestrial green algae from the genus Trentepohlia.[6]
^https://eparlib.nic.in/bitstream/123456789/1523/1/lsd_02_02_06-08-1957.pdf p. 25
^Gentleman, Amelia; McKie, Robin (5 March 2006). "Red rain could prove that aliens have landed". The Guardian. Archived from the original on 20 March 2006. Retrieved 12 March 2006.
^"JULY 28, 2001, The Hindu: Multicolour rain". Hinduonnet.com. 29 July 2001. Archived from the original on 6 September 2010. Retrieved 18 October 2015.{{cite web}}: CS1 maint: unfit URL (link)
^Cite error: The named reference L&K 2006 was invoked but never defined (see the help page).
^Cite error: The named reference BBC was invoked but never defined (see the help page).
^ abcSampath, S.; Abraham, T. K; Sasi Kuma; V. & Mohanan, C.N. (2001). "Coloured Rain: A Report on the Phenomenon" (PDF). Cess-Pr-114-2001. Center for Earth Science Studies and Tropical Botanic Garden and Research Institute. Archived from the original (PDF) on 13 June 2006. Retrieved 30 August 2009.
^"Morning shower paints rural Kannur red". The Times of India. 29 June 2012. Archived from the original on 21 September 2013. Retrieved 20 July 2012.
^"Red Rain in Sri Lanka in 2012". Fabpretty.com. 31 December 2012. Archived from the original on 20 October 2015. Retrieved 18 October 2015.
^Gamini Gunaratna, Sri Lanka News Paper by LankaPage.com (LLC) (16 November 2012). "Sri Lanka to investigate the cause of red rain received in some parts". Colombopage.com. Archived from the original on 23 September 2015. Retrieved 18 October 2015.
^"No meteoritic or alien connection with Red rain". Dailynews.lk. 17 November 2012. Archived from the original on 19 November 2012. Retrieved 18 October 2015.
^Chandra Wickramasinghe says yellow rain is young red rain before growth: [1]
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