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appendices:appendix5_additional_information [2025/04/08 14:38] – [5.4.2 The CAMS EAC4 Data] mielkeappendices:appendix5_additional_information [2025/04/08 14:48] (current) – [5.4.3 The Pollution Release and Transfer Register] mielke
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 ==== 5.4.2 The CAMS EAC4 Data ==== ==== 5.4.2 The CAMS EAC4 Data ====
  
-The CAMS EAC4 data shows very high correlation values to the reported national totals as shown in {{:appendices:corcoeff.png?linkonly| figure 8}}., all correlation values are above 0.9 with the exception of formaldehyde (HCHO). The low values here for formaldehyde are compared to the much higher national total values for NMVOC. This shows that formaldehyde on its own is not a sufficient proxy for NMVOC in case of Germany. +The CAMS EAC4 data shows very high correlation values to the reported national totals as shown in {{:appendices:corcoeff.png?linkonly| figure 8}}., all correlation values are above 0.9 with the exception of formaldehyde (HCHO). The low values here for formaldehyde are compared to the much higher national total values for NMVOC. This shows that formaldehyde is anticorelated with NMVOC in case of Germany.
- +
-PM<sub>2.5</sub> and PM<sub>10</sub> values of the EAC4 data show a good agreement to the national totals of Germany as shown in figure {{:appendices:iir_figure_eac4.jpg?linkonly| figure 4}}. The higher values of the CAMS NO<sub>2</sub>  data and the reported NO<sub>2</sub> data in the inventory are due to the fact that the here shown CAMS NO<sub>2</sub> (ECMWF, 2024)[(ECMWF2024)] data has been compiled as the sum of the total columns of the CAMS EAC4 NO, NO<sub>2</sub> and HNO<sub>3</sub> data product. The NO2 data alone or even the sum of all NO<sub>x</sub> total column products would yield significantly lower values as reported in the national totals of Germany. Only the sum of all NO<sub>x</sub> related chemical species yields a value, which is close to the reported national totals of the inventory.+
  
 +PM<sub>2.5</sub> and PM<sub>10</sub> values of the EAC4 data show a good agreement to the trend of the national totals of Germany as shown in figure {{:appendices:iir_figure_eac4.jpg?linkonly| figure 4}}, however, both species show an offset. 
  
  
 ==== 5.4.3 The Pollution Release and Transfer Register ==== ==== 5.4.3 The Pollution Release and Transfer Register ====
  
-Data for PM<sub>10</sub>, NO<sub>2</sub> and SO<sub>10</sub> are well correlated with the reported emissions with correlation values above 0.9 as shown in {{:appendices:correlations_figure58.jpg?linkonly| figure 8}}. This is also shown in the scatterplots and trend diagrams of {{:appendices:prtr_ap_plots_figure55.jpg?linkonly| figure 5}}. NMVOC and CO show moderate correlation values above 0.7, whilst ammonia data shows almost no correlation. For the heavy metals As and Hg correlation values above 0.8 are shown in {{:appendices:correlations_figure58.jpg?linkonly| figure 8}}, whilst only moderate correlation values exist for Pb and Ni (around 0.5), whilst Cu, Cr, Zn and Ni show almost no correlation, which is also visible in the scatter plot of {{:appendices:prtr_hm_plots_figure56.jpg?linkonly| figure 6}}. +Data for PM<sub>10</sub>, NO<sub>2</sub> and SO<sub>2</sub> are well correlated with the reported emissions with correlation values above 0.9 as shown in {{:appendices:correlations_figure58.jpg?linkonly| figure 8}}. This is also shown in the scatterplots and trend diagrams of {{:appendices:prtr_ap_plots_figure55.jpg?linkonly| figure 5}}. NMVOC and CO show moderate correlation values above 0.5. For the heavy metals As and Hg correlation values above 0.8 are shown in {{:appendices:corcoeff.png?linkonly| figure 8}}, whilst only moderate correlation values exist for Pb and Ni (around 0.5), whilst Cu, Cr, Zn show almost no correlation, which is also visible in the scatter plot of {{:appendices:prtr_hm_plots_figure56.jpg?linkonly| figure 6}}.