The 8 layers for soil temperature from the top to the bottom resprent the depth of  Soil surface, 5 cm, 10 cm, 20 cm, 50 cm, 100 cm, 200 cm 300 cm.
The 5layers of soil moisture represents the layer with depth: 0-10 cm, 10-20 cm, 20-30 cm, 50-100 cm, 100-200 cm.

-updated 2013-11-18 by wenxin.
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