Watermelon snow, also called snow algae, pink snow, red snow, or blood snow, is a phenomenon caused by Chlamydomonas nivalis, a species of green algae containing a secondary red carotenoid pigment (astaxanthin) in addition to chlorophyll. Unlike most species of fresh-water algae, this species appears to be cryophilic (cold-loving) and thrives in freezing water.[1]
This type of snow is common during the summer in alpine and coastal polar regions worldwide, such as the Sierra Nevada of California. Here, at altitudes of 10,000 to 12,000 feet (3,000–3,600 m), the temperature is cold throughout the year, and so the snow has lingered from winter storms. Compressing the snow by stepping on it or making snowballs leaves it looking red. Walking on watermelon snow often results in getting bright red soles and pink trouser cuffs.
Snow algae dominates glacial biomass immediately after the onset of melting, and its pigmentation can significantly darken the surface of a glacier. This plays a substantial role in glacial melt.[2]
^William E. Williams; Holly L. Gorton & Thomas C. Vogelmann (January 21, 2003). "Surface gas-exchange processes of snow algae". Proceedings of the National Academy of Sciences of the United States of America. 100 (2): 562–566. Bibcode:2003PNAS..100..562W. doi:10.1073/pnas.0235560100. PMC 141035. PMID 12518048.
^Lutz S, Anesio AM, Raiswell R, et al. The biogeography of red snow microbiomes and their role in melting arctic glaciers. Nature Communications. 2016 Jun;7:11968. DOI: 10.1038/ncomms11968.
Watermelonsnow, also called snow algae, pink snow, red snow, or blood snow, is a phenomenon caused by Chlamydomonas nivalis, a species of green algae...
land environments. For example, Chlamydomonas nivalis, which causes Watermelonsnow, lives on summer alpine snowfields. Others, such as Trentepohlia species...
variety of temperature and moisture conditions with corn snow. Watermelonsnow – Watermelonsnow is reddish pink, caused by a red-colored green algae called...
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responsible for causing the phenomenon of watermelonsnow (also blood snow, raspberry snow), where patches of snow appear red or pink. The first account of...
enduring ice sheets and snow pack, terrestrial ice algae often color the ice due to accessory pigments, popularly known as "watermelonsnow". The dark pigments...
found in freshwater habitats or on snow, where they are one of the main algae responsible for causing watermelonsnow. Chlainomonas consists of single,...
color was used to differentiate raspberry-flavored foods from cherry-, watermelon-, and strawberry-flavored foods, each of which is red. Blue raspberry...
similar to a snow pear, and the liquid-to-flesh ratio of the wax apple is comparable to a watermelon. Unlike either apple or watermelon, the wax apple's...
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region, but commonly used nuts and seeds include: walnuts, pumpkin seeds, watermelon seeds, peanuts, sesame seeds, or almonds. The mixture for the filling...
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heureux, Il n'y a plus de chemin Lois Braun 1949 short stories A Stone Watermelon Morwyn Brebner playwright, television writer Music for Contortionist,...
is watermelon pickled in brine, which is often used as an appetizer for strong alcoholic drinks. A traditional Cossack dessert is nardek - watermelon honey...
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Slice" sharpness test consisting of ballistics tubes, sand-filled tubes, watermelons, and plastic water-filled jugs. Results: 1. Chris Moss 2. Jimmy Coronado ...
come in a variety of flavors ranging from fruits such as strawberry, watermelon, and pineapples, to sodas such as Coca-Cola, Sprite, and Fanta, and other...
pickles, house-made white sauce on a toasted bun, served with a slice of watermelon. D.B.A. Barbecue Atlanta, Georgia "Smoked Wings" – jumbo chicken wings...
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