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IMPROVE Interpolation Results

IMPROVE Interpolation Results. 12/20/12 Jenny Hand. Description and Method Daily (1 in 3 day) IMPROVE RHR (second algorithm) data through 2010 were downloaded from FED. Only a simple completeness criteria was applied (75% completeness) but no RHR patching, etc.

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IMPROVE Interpolation Results

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  1. IMPROVE Interpolation Results 12/20/12 Jenny Hand

  2. Description and Method • Daily (1 in 3 day) IMPROVE RHR (second algorithm) data through 2010 were downloaded from FED. Only a simple completeness criteria was applied (75% completeness) but no RHR patching, etc. • Data were interpolated using a cubic spline interpolation algorithm. • Different sampling frequencies were chosen (every day, 1 in 4 day, 1 in 5 day) and the 20th percent haziest and cleanest values were computed using those data. • Baseline (BL) (2000-2004) and Period 1 (P1) (2005-2010) averages were computed for each sampling frequency. • Trends (2001-2010) were computed for each sampling frequency. • Only the 1 in 4 day results for totbextand dv are included here, although all of the other species were analyzed. • “Original” refers to the 1 in 3 day data, “Test” refers to 1 in 4 day.

  3. Example of 1 in 3 day IMPROVE data with interpolation (in red) for 2001, Acadia.

  4. Scatter plots of original and 1 in 4 day 20% cleanest and haziest Totbext, dv for BL and P1. Only the 110 RHTS are included.

  5. 20% Cleanest Totbext 20% Haziest Baseline Period 1

  6. 20% Cleanest 20% Haziest dv Baseline Period 1

  7. Isopleths of original and 1 in 4 day 20% cleanest and haziest Totbext, dv for BL and P1

  8. Baseline and Period 1 20% cleanest original and 1 in 4 Totbext Interpolated 1 in 4 day “Original” (1 in 3 day) BL BL P1 P1

  9. Totbext Baseline and Period 1 20% haziest original and 1 in 4 “Original” (1 in 3 day) Interpolated 1 in 4 day BL BL P1 P1

  10. dv Baseline and Period 1 20% cleanest Original and 1 in 4 Interpolated 1 in 4 day “Original” (1 in 3 day) BL BL P1 P1

  11. dv Baseline and Period 1 20% haziest original and 1 in 4 Interpolated 1 in 4 day “Original” (1 in 3 day) BL BL P1 P1

  12. Isopleths of 2001-2010 trends in original and 1 in 4 day 20% cleanest and haziest Totbext, dv for BL and P1

  13. Totbext 2001-2010 Trends in 20% cleanest original and 1 in 4 day Interpolated 1 in 4 day “Original” (1 in 3 day)

  14. Totbext 2001-2010 Trends in 20% haziest original and 1 in 4 day Interpolated 1 in 4 day “Original” (1 in 3 day)

  15. dv 2001-2010 Trends in 20% cleanest original and 1 in 4 day Interpolated 1 in 4 day “Original” (1 in 3 day)

  16. dv 2001-2010 Trends in 20% haziest original and 1 in 4 day Interpolated 1 in 4 day “Original” (1 in 3 day)

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