METHODOLOGY

1. Data Sources

Main sources used on the platform include:

• TURKSTAT: National greenhouse gas inventories and statistics (annual)
• Ministry of Environment: Official environmental and climate data (annual)
• UNFCCC: International reports and national submissions (annual)

2. Data Processing

2.1 Units and Conversions

Data are standardized to common units for consistent analysis. The main display unit is Mt CO₂e (megaton CO₂ equivalent).

GWP values are based on IPCC AR5 and gas conversions follow that reference.

2.2 Quality Control & Missing Data

• Automated and manual checks are used to ensure data consistency.
• Outliers are reviewed and cross-checked with source data.
• Missing data are flagged; where appropriate, interpolation or modelling is used with methodological notes provided.

3. Visualization

Visualizations used on the platform include:

• Line charts: Time series
• Pie charts: Sectoral shares
• Bar charts: Comparative analyses

Color palettes are chosen for consistency and accessibility (contrast, color-blind friendliness).

4. Limitations

• Data lag: Official statistics are typically published with a 1-2 year delay.
• Uncertainty: Some figures are estimates and carry uncertainty; notes are included where relevant.
• Methodology changes: Changes in official methodology can affect time-series comparability and are documented.

5. Site-specific notes

• Priority is given to official sources when merging data; the platform may keep static JSON backups and database records as fallbacks.
• Some normalization and GHG calculations are performed server-side; SSR summaries are available for search engines.
• Contact: info@ghg-turkiye.com

6. References

• IPCC Guidelines for National Greenhouse Gas Inventories
• UNFCCC Reporting Guidelines
• TURKSTAT greenhouse gas inventory methodology documents