TERENO a Network of Terrestrial Long-Term Observatories in Germany
TERENO A network of terrestrial long-term observatories in Germany Steffen Zacharias Long-Term Perspective – The Keeling Curve C. D. Keeling, S. C. Piper, R. B. Bacastow, M. Wahlen, T. P. Whorf, M. Heimann, and H. A. Meijer, Exchanges of atmospheric CO2 and 13CO2 with the terrestrial biosphere and oceans from 1978 to 2000. I. Global aspects, SIO Reference Series, No. 01-06, Scripps Institution of Oceanography, San Diego, 88 pages, 2001. Keeling, C.D., T.P. Whorf, M. Whalen and J. van der Plicht. 1995. Interannual extremes in the rate of rise of atmospheric carbon dioxide since 1980., Nature 375:666–670, Page 2 Long-Term Perspective II – Decline of Moths in the Alice Holt Research Forest Forestry Commission Research Note. 2008. The Environmental Change Network at Alice Holt Research Forest, www.forestresearch.gov.uk Page 3 Long-Term Perspective III – Characteristic Time Scales for Climate Changes and Coupled Ecological and Social-Economical Processes IPCC 2001, Synthesis Report Page 4 Temporal Variability 100.00 g/L] g/L] µ µ Pmax - Value 15 [ 15 15 [ 15 1.00 - - - - PAHPAH 0.10 0.01 Dec 93 Dec 94 Dec 95 Dec 96 Dec 97 Dec 98 Dec 99 Time Entscheidung basierend auf Tagesmessung Grundwasserkörper ist ungefährdet Grundwasserkörper ist gefährdet Page 5 Why do we need a long-term perspective in environmental monitoring? • To improve the system understanding (temporal scales, complex interactions), • To identify relevant processes, • To determine “Exceptionality”, • To develop and validate describing models, • To predict/prognose developments in the observed systems – to identify “pattern” and to recognize potential significant trends early, • To test and optimize options for control, measures, and strategies for adaption And thereby • As precondition for a sustainable use of natural resources.
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