>Dawnseeker2000: date format audit, link maintenance, typo(s) fixed: Executive Committee → executive committee, ’s → 's

2021-06-27T10:04:49Z

date format audit, link maintenance, typo(s) fixed: Executive Committee → executive committee, ’s → 's

New page

{{Use dmy dates|date=June 2021}}
{{Use Indian English|date=December 2012}}
{{unreliable sources|date=November 2012}}
{{Infobox scientist
| name = Valiya Mannathal Hamza
| image = 
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| birth_date = {{Birth date|df=yes|1941|06|15}}
| birth_place = [[Kozhikode district|Calicut]], [[Malabar District]], [[Madras Presidency]], [[British Raj|British India]]
| death_date = 
| death_place =
| residence = [[Rio de Janeiro]]
| citizenship =
| nationality = Indian
| fields = [[Geophysics]]
| workplaces = [http://www.on.br/ Observatório Nacional]
| alma_mater = [[National Geophysical Research Institute]], [[University of Kerala]], [[University of Western Ontario]]
| doctoral_advisor =
| academic_advisors =
| doctoral_students =
| notable_students =
| known_for = Discovery of the [[Hamza River]]
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| influences =
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}}
'''Valiya Mannathal Hamza''' (born 15 June 1941)<ref name=":0">{{Cite journal|last=de Lima Gomes|first=Antonio Jorge|last2=Hamza|first2=Valiya Mannathal|year=2005|title=Geothermal Gradient and Heat Flow in the State of Rio De Janeiro|url=https://www.scielo.br/pdf/rbg/v23n4/a01v23n4.pdf|journal=Revista Brasileira de Geofísica|publisher=Sociedade Brasileira de Geofísica|volume=23|issue=4|page=347|doi=10.1590/S0102-261X2005000400001|issn=0102-261X|doi-access=free}}</ref> is an [[Indian people|Indian]]<ref>{{cite web|title= Amazon has a twin river that flows 4.000 metres below the ground|publisher= Mercopress |date= 26 August 2011 |url= http://en.mercopress.com/2011/08/26/amazon-has-a-twin-river-that-flows-4.000-metres-below-the-ground|access-date= 2 September 2011|website= MercoPress}}</ref> scientist credited with co-discovering, together with [[Elizabeth Tavares Pimentel]],<ref>{{cite web|date=31 August 2011|title=Large Underground River Flowing Beneath The Amazon Rain Forest|url=http://www.geeky-gadgets.com/large-underground-river-flowing-beneath-the-amazon-rain-forest-31-08-2011/|access-date=31 August 2011|publisher=Geeky Gadgets|via=The Guardian}}</ref> the large [[aquifer]] referred to as "Rio Hamza" or [[Hamza River]], which flows deep below and parallel to the [[Amazon River|Amazon]].<ref name="river">{{cite news|title= Underground river 'Rio Hamza' discovered 4 km beneath the Amazon |work= The Guardian|url= https://www.theguardian.com/environment/2011/aug/26/underground-river-amazon|access-date= 31 August 2011 |location=London |first=Alok |last=Jha |date=26 August 2011}}</ref> Hamza is listed as a Permanent professor in the [[Geophysics]] specialization at the [[Brazilian National Observatory]].<ref>{{cite web|title= Professors and Collaborators are displayed following CAPES' advices as well as determinations of the Technical and Scientific Council of the Observatório Nacional |publisher= Observatório Nacional |year= 2011 |url= http://www.on.br/conteudo/dppg_e_iniciacao/dppg/neweb_geo/conteudo_ingles/docentesingles.html|access-date= 31 August 2011}}</ref>

==Education==
Hamza did his undergraduate and postgraduate studies at the [[University of Kerala]] in the 1960s, finishing with a graduate degree in physics in 1962 and a postgraduate degree in applied physics in 1964. He started as a Senior Scientific Assistant at the [[National Geophysical Research Institute]] in [[Hyderabad]], India in 1966. He moved to the [[University of Western Ontario]], [[Canada]] for his PhD in 1968, and completed the degree in 1973,<ref name=":0" /> subsequently going to [[Brazil]] in 1974.<ref>{{cite web|title= From Brazil to Kerala: Hamza waters run deep below Amazon |publisher= SmasHits |date= 31 August 2011 |url= http://news.smashits.com/701956/From-Brazil-to-Kerala:-Hamza-waters-run-deep-below-Amazon.htm|access-date= 31 August 2011|archive-url=https://web.archive.org/web/20120320064907/http://news.smashits.com/701956/From-Brazil-to-Kerala:-Hamza-waters-run-deep-below-Amazon.htm|archive-date= 20 March 2012|url-status=dead}}</ref>

==Career==
Hamza served as an Associate Professor of the [[University of Sao Paulo]] from 1974 to 1981, and a Research Supervisor at the Institute of Technology Research from 1982 to 1993. He also held positions as a Secretary of the International Heat Flow Commission and member of the executive committee of the International Association of Seismology and Physics of the Earth's Interior.<ref name=":0" />

Hamza and colleague Elizabeth Tavares Pimentel discovered a subterranean river running along the same route as the Amazon River in 2011, which was later named after Hamza.<ref name="river"/>

==References==
{{reflist}}

{{authority control}}

{{DEFAULTSORT:Hamza, Valiya}}
[[Category:Indian geophysicists]]
[[Category:Indian geologists]]
[[Category:University of Kerala alumni]]
[[Category:University of Western Ontario alumni]]
[[Category:Scientists from Kozhikode]]
[[Category:Scientists from Kerala]]
[[Category:20th-century Indian physicists]]
[[Category:1941 births]]
[[Category:Indian expatriate academics]]
[[Category:Expatriate academics in Brazil]]
[[Category:Living people]]

Valiya Hamza - Revision history

>Dawnseeker2000: date format audit, link maintenance, typo(s) fixed: Executive Committee → executive committee, ’s → 's