Source of data and monetary valuations for i-Tree Eco European adaptation

[Jason.Henning]

In November of 2018 i-Tree Eco was adapted for use in a number of European Union countries. This adaptation required the use of a number of local data sources to support the i-Tree models and create localized monetary valuations. Below is a list of the data sources used.

• Primary/Secondary Partitions: the country and country subdivision names and geographies are from Eurostat, NUTS database - NUTS 1 and 3 (2013), https://ec.europa.eu/eurostat/web/gisco ... units/nuts
• Tertiary Partitions: the city names and geographies are from ESRI - Europe Basemap (2010), https://www.arcgis.com/home/item.html?i ... 74f0149025
• Demographics are from Eurostat (2011), https://ec.europa.eu/eurostat/web/gisco ... hy/geostat
• Local leaf on/leaf off dates are from Weather Online (2000), https://www.weatheronline.co.uk/weather/
• Albedo data are from WorldClim - Global Climate Data (1970-2000 avg), CORINE Land Cover (2012),http://worldclim.org
• Monetary Cost of Electricity/Fuels used in determining monetary value of energy benefits are from Eurostat (2017), https://ec.europa.eu/eurostat/statistic ... statistics
• Emissions Factors used in determining pollution reduction due to reduced energy use are from European Commission, Joint Research Center (2017), http://data.jrc.ec.europa.eu/dataset/jr ... mw-ef-2017
• Carbon Monetary Value are US values converted to local currency. The source of US values are here, https://canopy.itreetools.org/resources ... Carbon.pdf
• Rainfall Interception Monetary Value are US values converted to local currency. The source of US values are described here, https://www.itreetools.org/eco/resource ... tions.pdf.
• Structural Monetary Value are US values converted to local currency. Note a US national average based on the modified US International Society of Arboriculture (ISA) and State Chapter Council of Tree and Landscape Appraisal (CTLA) methodology is applied for European country structural estimates. CTLA methods are described in this forum post and associated links, viewtopic.php?t=993.
• European pollution data source 2013-2015 - European Environment Agency (EEA) - https://www.eea.europa.eu/data-and-maps ... a-explorer
• Pollutant Monetary Base Costs used in determining the monetary value of pollution removal are from CE Delft - External Costs of Transportation (2011), http://ecocalc-test.ecotransit.org/CE_D ... pe_def.pdf

In some locations users have provided location, precipitation and/or pollution data using the i-Tree Database system. In these cases the user provided data take priority over the i-Tree default data. Pollution data that was previously submitted for cities in Europe by users through i-Tree Database is now averaged with data from EEA stations. You can see pollution monitor stations locations in the Reports tab by selecting the Project Metadata Report after project configuration is complete, click on the coordinates check box to the far left in the ribbon, and then select Map Active Report to see pollution station locations for a given year in a map interface.

Important Note: Users can enter custom monetary values for many of the benefits directly in i-Tree Eco by accessing the "Benefit Prices" table on the "Data" tab. Users are encouraged to use customized local monetary values whenever they are available. Such localized values will be easier for users to explain and defend, and in general will be more accurate than regional generalizations that are used to create the i-Tree Eco default values.