Dalton dị Obere
Dalton Minimum bụ ógè nkè ọnụ ọgụgụ nké gbadara àlà ébé anyanwụ, na-anọchite anya ọrụ dị ala nke anwụ, nke akpọrọ aha ónyé England na-ahụ màkà ihu igwe John Dalton, nke na-adị site n'afo 1790 ruo afọ 1830 ma ọ bụ afọ 1796 ruo 1820, nke kwekọrọ na ógè okirikiri anyanwụ 4 ruo okirikiri nke anyanwụ 7.
Ọ bụ ezie na a na-ejikarị Dalton Minimum tụnyere Maunder Minimum, ọnụ ọgụgụ sunspot ya dịtụ elu ma kọọrọ sunspots na-ekesa na hemispheres anyanwụ abụọ n'adịghị ka Maunder Minimal. A na-egosipụta ihe ndị na-acha uhie uhie na Ezra Ames na José Joaquin de Ferrerz na ihe osise eclipse n'afọ 1806 ma gosipụta ọdịdị nke magnetik ya ọ bụghị nke Maunder Minimum kama na nke okirikiri anyanwụ nke ógé a.

Okpomọkụ 
Dị ka Maunder Minimum na Spörer Minimum, Dalton Minimum dakọtara na ógé okpomọkụ ụwa dị ala karịa nkezi. N'oge ahụ, enwèrè mgbanwe nké okpomọkụ nkè ihe dịka otu Celsius na Germany.

A ghọtachaghị ihe kpatara okpomọkụ dị ala karịa nkezi na njikọ ha nwèrè ike inwe na ọnụ ọgụgụ dị ala nke anyanwụ. Akwụkwọ ndị na-adịbeghị ányá atụwo aro na ịrị elu nkè mgbawa ugwu bụ ihe kpatara usoro oyi.

Ọ bụ ezie na Afọ Na-enweghị Oge Ọchịchị, n'afọ 1816, mèrè n'oge Dalton Minimum, isi ihe kpatara okpomọkụ dị jụụ nke afọ ahụ bụ mgbawa ugwu nke ukwuu n'afọ gara aga nke Ugwu Tambora na Indonesia, nke bụ otu n'ime mgbawa abụọ kachasị ukwuu n'ime afọ 2000 gara-aga. Otu ónyé ga-echekwa na ịrị elu nke mgbawa ugwu nwèrè ike ịbụ site na ọkwa dị ala nke mmepụta anyanwụ n'ihi na enwèrè njikọ na-adịghị ike ma dị ịrịba ama n'etiti mbelata nke mmepụta nke anyanwụ na mmụba nke mgbawa ọkụ.

Hụkwa 

 Okirikiri anyanwụ

Ihe edeturu

Edensibia 

 Hayakawa, Hisashi et al. (2020a) "Thaddäus Derfflinger's Sunspot Observations during 1802X1824: A Primary Reference to Understand the Dalton Minimum", na The Astrophysical Journal, 890, 98.
 Hayakawa, Hisashi et al. (2020b) ""The Solar Corona n'oge Total Eclipse na 1806 June 16: Ihe akaebe nke Coronal Structure n'oge Dalton Minimum", na The Astrophysical Journal, 900, 114.
 Komitov, Boris na Vladimir Kaftan (2004) "The Sunspot Activity in the Last Two Millennias on the Basis of Indirect and Instrumental Indexes: Time Series Models and Their Extrapolations for the 21st Century", na Proceedings of the International Astronomical Union, 2004, pp. 113化114.
 Wagner, Sebastian and Eduardo Zorita (2005) "Mmetụta nke mgbawa ugwu, anyanwụ na CO2 na-amanye okpomọkụ na Dalton Minimum (17901830): a model study", Climate Dynamics v. 25, pp. 205218, doi 10.1007/s00382-005-0029-0.
 Wilson, Robert M. (nd) "Volcanism, Cold Temperature, and Paucity of Sunspot Observing Days (18181858): Njikọ?", The Smithsonian/NASA Astrophysics Data System, nwetara na Febụwarị 2009.