英语词汇“accumulated temperature”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

accumulated temperature n. Meteorology and Botany the average temperature or excess temperature over a period multiplied by the number of days in the period; the sum over a month or other period of the amounts by which the mean temperature each day exceeds a particular base value.Thus if the average daily temperature during a week were successively 10°C, 12°C, 13°C, 16°C, 16°C, 15°C, 15°C, the accumulated temperature would be 97°C; with reference to a base temperature of 6°C, the excesses are 4, 6, 7, 10, 10, 9, 9, and the accumulated temperature is 4 + 6 + 7 + 10 + 10 + 9 + 9, i.e. 55 degrees.The concept was used without being named by J. B. Boussingault 1837, in Comptes rendus hebd. de l'Acad des Sci. 4 178; it was taken up in A. de Candolle Géogr. bot. raisonnée (1855) I. iv. 25, vi. 45, etc., which uses French somme des températures.

ΚΠ

1856 Proc. Meteorol. Soc. 2 10 The accumulated temperature, obtained by multiplying the mean temperature by the number of days in each month.

1884 Meteorol. Off. Weekly Weather Rep. p. iv The Accumulated Temperature is expressed in ‘Day-degrees’,—a Day-degree signifying 1° F. of excess or defect of temperature above or below 42° F. continued for 24 hours.

1992 Grasslands & Grassland Sci. Northern China (Nat. Res. Council, U.S.) 40 Northwest Tibet has a growing period of only 60-90 days and an accumulated temperature of less than 500°C.

2006 P. J. Gregory Plant Roots v. 133 The number of axes was plotted as a function of the accumulated temperature at the shoot meristem using a T_b of 12°C.

单词	accumulated temperature
释义	> as lemmas accumulated temperature accumulated temperature n. Meteorology and Botany the average temperature or excess temperature over a period multiplied by the number of days in the period; the sum over a month or other period of the amounts by which the mean temperature each day exceeds a particular base value.Thus if the average daily temperature during a week were successively 10°C, 12°C, 13°C, 16°C, 16°C, 15°C, 15°C, the accumulated temperature would be 97°C; with reference to a base temperature of 6°C, the excesses are 4, 6, 7, 10, 10, 9, 9, and the accumulated temperature is 4 + 6 + 7 + 10 + 10 + 9 + 9, i.e. 55 degrees.The concept was used without being named by J. B. Boussingault 1837, in Comptes rendus hebd. de l'Acad des Sci. 4 178; it was taken up in A. de Candolle Géogr. bot. raisonnée (1855) I. iv. 25, vi. 45, etc., which uses French somme des températures. ΚΠ 1856 Proc. Meteorol. Soc. 2 10 The accumulated temperature, obtained by multiplying the mean temperature by the number of days in each month. 1884 Meteorol. Off. Weekly Weather Rep. p. iv The Accumulated Temperature is expressed in ‘Day-degrees’,—a Day-degree signifying 1° F. of excess or defect of temperature above or below 42° F. continued for 24 hours. 1992 Grasslands & Grassland Sci. Northern China (Nat. Res. Council, U.S.) 40 Northwest Tibet has a growing period of only 60-90 days and an accumulated temperature of less than 500°C. 2006 P. J. Gregory Plant Roots v. 133 The number of axes was plotted as a function of the accumulated temperature at the shoot meristem using a T_b of 12°C. extracted from accumulatedadj. < as lemmas
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> as lemmas