Developing a consistent time series

It is good practice to calculate emissions from lime production using the same method for every year in the time series. These Guidelines introduce a new Tier 3 approach based on carbonate input to lime production. These data may or may not be available historically. If the inventory compiler chooses to implement this Tier for current and future inventories they are encouraged to collect this data for historical years to ensure time series consistency. Where these data are not available, the inventory compiler may refer to the 'Overlap approach' (see Volume 1, Section 5.3) to attempt to recalculate previous estimates.

Where data are not available, inventory compilers moving from a Tier 1 to a Tier 2 approach may assume that there has not been a significant shift in the country from use of one carbonate input to another for lime production. This is likely a reasonable assumption, specifically since limestone typically is the predominant carbonate input.

Inventory compilers should disaggregate lime production data into the three mentioned types: high calcium lime, dolomitic lime, and hydraulic lime. Where country specific data are not available for the entire time series for the proportion of lime consumed, or the proportion of hydrated lime, missing years may be estimated by the Interpolation or Trend Extrapolation Approaches as outlined in Volume 1, Section 5.3, or by assuming that the current year is reflective of the proportion of lime produced in earlier years of the time series.

Guide to Alternative Fuels

Guide to Alternative Fuels

Your Alternative Fuel Solution for Saving Money, Reducing Oil Dependency, and Helping the Planet. Ethanol is an alternative to gasoline. The use of ethanol has been demonstrated to reduce greenhouse emissions slightly as compared to gasoline. Through this ebook, you are going to learn what you will need to know why choosing an alternative fuel may benefit you and your future.

Get My Free Ebook


Post a comment