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Motion Chart for Annual Aggregations

Explanation of Chart    

 

Explanation of Chart

  • Each bubble represents a CASTNET site.
  • Change the vertical axis, horizontal axis, color or size of bubbles using the drop down menus in the axes or legend to the right of the chart.
  • View the data associated with a bubble by mousing over it; values are displayed on the axes and legend frames.
  • The size of the bubble is proportionate to the value of the Size variable and the size and value of the outline in the Size legend.
  • Set bubbles in motion over time by pressing Play.
  • Track a site's changes over time by clicking on its bubble or checking its box within the Select frame and press Play.
  • Change the opacity of non-selected bubbles, or eliminate them entirely, using the Opacity scale in the wrench at the bottom right of the chart.
  • View a time series by selecting Time on the horizontal axis and press Play.
  • Change the chart type by clicking on the bar graph or linear chart in the upper right corner of the plot.
  • Change the axes by selecting linear or logarithmic from the drop down menus. Scales adjust automatically to the range of data.
  • View data used to create this chart.

 

Explanation of Variables

Conc HNO3 (ug/m3)Annual mean ambient concentration of gaseous HNO3; ug/m3.
Conc NH4 (ug/m3)Annual mean ambient concentration of particulate NH4; ug/m3.
Conc NO3 (ug/m3)Annual mean ambient concentration of particulate NO3; ug/m3.
Conc SO2 (ug/m3)Annual mean ambient concentration of gaseous SO2; ug/m3.
Conc SO4 (ug/m3)Annual mean ambient concentration of particulate SO4; ug/m3.
Conc Total NO3 (ug/m3)Annual mean ambient concentration of total nitrate (HNO3 + NO3); ug-NO3/m3.
Dep Dry N (kg/ha)Annual nitrogen flux due to dry deposition, as measured by CASTNET; kg-N/ha.
Dep Dry S (kg/ha)Annual sulfur flux due to dry deposition, as measured by CASTNET; kg-S/ha.
Dep Total N (kg/ha)Annual total nitrogen deposition, as measured by CASTNET, NADP/NTN and PRISM; kg-N/ha.
Dep Total S (kg/ha)Annual total sulfur deposition, as measured by CASTNET, NADP/NTN and PRISM; kg-S/ha.
Dep Wet N (kg/ha)Annual nitrogen deposition in precipitation, as measured by NADP/NTN and PRISM; kg-N/ha.
Dep Wet S (kg/ha)Annual sulfur deposition in precipitation, as measured by NADP/NTN and PRISM; kg-S/ha.
Ozone 4th HDMax (ppb)Calculated 4th highest daily maximum ozone value for the year, ppb.
Precipitation (cm)Precipitation; cm.
RegionGeographic region.
SITE_IDUnique ID for site and year. Only sites with 10 or more years of data are included.
Unit CO2 200km (KTons)CO2 emissions for regulated stationary sources within 200 km of the monitoring site; Ktons.
Unit Heat 200km (TBTU)Heat output for regulated stationary sources within 200 km of the monitoring site; TBTU.
Unit NOx 200km (KTons)NOx emissions for regulated stationary sources within 200 km of the monitoring site; Ktons.
Unit SO2 200km (KTons)SO2 emissions for regulated stationary sources within 200 km of the monitoring site; Ktons.
YearYear of measurement.

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