Wednesday, April 20, 2011

Isopleths

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhMml_lr71SwiJO_xaQZG1MpyjUoXbl2fLS0NHBqX8p_Wdb5V_RXFtPCjY9bi-7DMy-cxZHpYl3cZ1X8Ur-_ne2hqcZoBcOQFXE7XjRfCVcBnlPswsRjJ6FP_IFPz3qGjX1M01_YQ_1xNY/s1600-h/isopleth.gif
Isopleths are maps that consist of lines connecting places of equal value of distribution for a given theme, such as rainfall or temperaturer. This map greated by the Oregon limate service at Oregon state university,  shows rainfall from 1961 to 1990.
[isopleth.gif]

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