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QUANTIFYING UNCERTAINTY IN ECOSYSTEM STUDIES Ruth Yanai, Carrie Rose Levine, Craig See (SUNY-ESF) John Campbell, Mark Green (USFS and PSU) Amey Bailey,

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Presentation on theme: "QUANTIFYING UNCERTAINTY IN ECOSYSTEM STUDIES Ruth Yanai, Carrie Rose Levine, Craig See (SUNY-ESF) John Campbell, Mark Green (USFS and PSU) Amey Bailey,"— Presentation transcript:

1 QUANTIFYING UNCERTAINTY IN ECOSYSTEM STUDIES Ruth Yanai, Carrie Rose Levine, Craig See (SUNY-ESF) John Campbell, Mark Green (USFS and PSU) Amey Bailey, Stephanie Laseter (USFS)

2 20 collectors across SEV from 1989-1995 Solutes: NO3, NH4, SO4, Cl, Na, K, Ca, Mg, and PO4 Collections monthly or after heavy rains Gaps in the Precipitation Record at Sevilleta

3

4 Gaps in the Streamflow Record Hubbard Brook Coweeta

5 Gaps in the Streamflow Record (days) Hubbard Brook Coweeta

6 Uncertainty in change over time in sulfate in atmospheric deposition in NY as a function of sampling intensity (21 stations = 100%)

7 Uncertainty in change over time in Adirondack lake nitrate as a function of sampling intensity (50 lakes monthly = 100%)

8 Uncertainty in Forest Biomass in W6 as a function of the number of plots sampled

9 Uncertainty in Change over Time in Forest Biomass in W6

10 Variation over space and time in stream loads at Hubbard Brook, Coweeta, and Wakayama (Japan)

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