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1 - Simple assessments of the physical conditions in alpine ecosystems do not necessarily depend on sophisticated instrumentation. |
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2 & 3 - A spade and a pocket thermometer may provide immediately useful information on soil moisture and ground temperature. The latter is the simplest and best surrogate for thermal life conditions. |
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4 - So called minimum-maximum thermometers ($20 US) can be left behind to store extremes for you. |
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5 - Nut-size electronic data loggers ($160 US) can store up to 4 years temperatures measured at hourly intervals and need no attendance once buried. |
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29 August 2011 |
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