<\/a><\/a>D\u0141UGOOKRESOWA ZMIENNO\u015a\u0106 STOPNIA SUCHO\u015aCI KLIMATU W POZNANIU WED\u0141UG WSKA\u0179NIKA DE MARTONNE\u2019A (1850-2024)<\/span>
\nLong-term variation of the \u201cdegree of climate aridity\u201d in Pozna\u0144 according to the De Martonne Index (1850-2024)
\n<\/span><\/span><\/p>\n

Andrzej A. Marsz, Anna Styszy\u0144ska<\/span><\/span><\/span>
\n<\/em>Przegl\u0105d Geofizyczny (2025) vol. 70, iss. 1-2, pp. 3-22<\/em><\/span>
\nhttps:\/\/doi.org\/10.32045\/PG-2024-052<\/span><\/p>\n

Tekst \/ Text<\/span><\/a><\/p>\n

Streszczenie
\n<\/strong>W pracy przedstawiono przebieg wska\u017anika sucho\u015bci klimatu de Martonne\u2019a (DMI) w Poznaniu w latach 1850-2024. Stwierdzono brak istotnego trendu w przebiegu DMI w ci\u0105gu badanego wielolecia. Przebieg DMI wykazuje wysoce istotny zwi\u0105zek z przebiegiem klimatycznego bilansu wodnego (KBW) w Poznaniu obliczonego metod\u0105 Ivanova. Przeci\u0119tnej wieloletniej warto\u015bci DMI odpowiada ujemna warto\u015b\u0107 \u2013122 mm rocznego KBW. Poniewa\u017c w Poznaniu nie zauwa\u017ca si\u0119 post\u0119puj\u0105cego niedoboru wody obliczono skorygowane warto\u015bci DMI oraz KBW. Skorygowana roczna warto\u015b\u0107 KBW w Poznaniu jest r\u00f3wna +43 mm, a warto\u015b\u0107 DMI 31,93 (klimat lekko (\u0142agodnie) suchy). Wyja\u015bnia to, \u017ce w roku, w kt\u00f3rym suma opad\u00f3w rocznych jest mniejsza od \u015bredniej wieloletniej lub\/oraz temperatura roczna jest wy\u017csza od \u015bredniej wyst\u0105pi w Poznaniu (i w Wielkopolsce) ujemny KBW. <\/span><\/p>\n

S\u0142owa kluczowe:<\/strong> Pozna\u0144, wska\u017anik sucho\u015bci klimatu de Martonne\u2019a, klimatyczny bilans wodny, skorygowany klimatyczny bilans wodny<\/span><\/p>\n

Abstract
\n<\/strong>The paper presents the course of the de Martonne aridity index (DMI) in Pozna\u0144 in the years 1850-2024. No significant trend in the course of the DMI was found during the studied multi-year period. The course of the DMI shows a highly significant relationship with the course of the climatic water balance (KBW) in Pozna\u0144 calculated using the Ivanov method. The average multi-year DMI value corresponds to a negative value of \u2013122 mm of annual KBW. Since no progressive water shortage is observed in Pozna\u0144, corrected DMI and KBW values were calculated. The corrected annual KBW value in Pozna\u0144 is equal to +43 mm, and the DMI value is 31.93 (slightly-arid climate). This explains that in a year in which the sum of annual precipitation is lower than the multi-year average and\/or the annual temperature is higher than the average, a negative KBW will occur in Pozna\u0144 (and in Greater Poland region).<\/span><\/p>\n

Keywords<\/strong>: Pozna\u0144, de Martonne aridity index, climatic water balance, corrected climatic water balance<\/span><\/p>\n

 <\/p>\n

Article is licensed under <\/span>CC BY 4.0<\/span><\/strong><\/a><\/p>\n

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D\u0141UGOOKRESOWA ZMIENNO\u015a\u0106 STOPNIA SUCHO\u015aCI KLIMATU W POZNANIU WED\u0141UG WSKA\u0179NIKA DE MARTONNE\u2019A (1850-2024) Long-term variation of the \u201cdegree of climate aridity\u201d in Pozna\u0144 according to the De Martonne Index (1850-2024) Andrzej A. Marsz, Anna Styszy\u0144ska Przegl\u0105d Geofizyczny (2025) vol. 70, iss.…<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3006","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ptgeof.pl\/index.php?rest_route=\/wp\/v2\/pages\/3006","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ptgeof.pl\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ptgeof.pl\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ptgeof.pl\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/ptgeof.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3006"}],"version-history":[{"count":6,"href":"https:\/\/ptgeof.pl\/index.php?rest_route=\/wp\/v2\/pages\/3006\/revisions"}],"predecessor-version":[{"id":3168,"href":"https:\/\/ptgeof.pl\/index.php?rest_route=\/wp\/v2\/pages\/3006\/revisions\/3168"}],"wp:attachment":[{"href":"https:\/\/ptgeof.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}