| 释义 |
hythergraph Climatol.|ˈhaɪθəgrɑːf, -æ-|
[f. Gr. ὑ-ετός rain + θέρ-µη heat + -graph.]
A climograph having temperature and either humidity or precipitation as coordinates; usu., one in which the mean monthly values of these coordinates are plotted for each month of the year, the plotted points for each successive month then being joined by straight lines.
1918T. G. Taylor Austral. Environment viii. 30 The two chief controls..are temperature and rainfall... To the graph representing these controls I have given the name hythergraph—from the Greek words for rain and heat. [Note] Tyler has used the word ‘hyther’ to express the joint effect of humidity and temperature. 1940Ecology XXI. 189/1 Though shown..as being an area of tall grass, the hythergraphs of stations in the area depart somewhat from the typical grassland figure and approach diagrams of the deciduous forest. 1950Conrad & Pollak Methods in Climatol. (ed. 2) vii. 221 The annual variation of the combined rainfall–temperature element is represented by the graphs shown in Fig. 58. These curves are called hythergraphs. |