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G Detecting Changes in Time and Space
Pages 501-504

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From page 501...
... NATIONAL ENVIRONMENTAL MONITORING NETWORK A National Environmental Monitoring Network (NEMN) could be used to • establish baseline data from which environmental change can be measured; • detect trends (both slope and direction)
From page 502...
... The establishment of new sites is likely to be required in some areas, either because of the low density of existing facilities in the area or because of the unusually high complexity of the area. Data Collected Each site could be equipped with the appropriate instrumentation to collect and transmit basic physical and biological data including the following: • Physical data and sampling • Weather: temperature, precipitation, cloud cover, insolation,1 wind speed, wind direction, and variability • Atmospheric chemistry • Soil chemistry and microorganisms • Water chemistry and flow rates • Biological data and sampling • Species richness and diversity • Population dynamics of target species • Land-use maps Standardizing Formats The methodologies for data collection must be standardized among all sites in the network.
From page 503...
... Qualified technicians must be on-site to supervise data monitoring instrumentation and to forward data sets to the central database. Qualifications need not include a college degree but could include training in instrument maintenance and data entry.


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