Average Annual Rainfall over the Globe

Autor/in	Agrawal, D. C.
Titel	Average Annual Rainfall over the Globe
Quelle	In: Physics Teacher, 51 (2013) 9, S.540-541 (2 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-921X
DOI	10.1119/1.4830066
Schlagwörter	Weather; Water; Climate; Energy; Science Instruction; Science Activities; Scientific Principles + Suchen Sie Ihr Suchwort? Wetter; Wasser; Klima; Energie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht
Abstract	The atmospheric recycling of water is a very important phenomenon on the globe because it not only refreshes the water but it also redistributes it over land and oceans/rivers/lakes throughout the globe. This is made possible by the solar energy intercepted by the Earth. The half of the globe facing the Sun, on the average, intercepts 1.74 × 10[superscript 17]J of solar radiation per second and it is divided over various channels as given in Table 1. It keeps our planet warm and maintains its average temperature of 288 K with the help of the atmosphere in such a way that life can survive. It also recycles the water in the oceans/rivers/ lakes by initial evaporation and subsequent precipitation; the average annual rainfall over the globe is around one meter. According to M. King Hubbert the amount of solar power going into the evaporation and precipitation channel is 4.0 × 10[superscript 16]W. Students can verify the value of average annual rainfall over the globe by utilizing this part of solar energy. This activity is described in the next section. (As Provided).
Anmerkungen	American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://scitation.aip.org/tpt
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10