Methodology & Trust Center
Every major page should explain where a number came from, when it was updated, whether it can be downloaded, and how it can be verified.
The trust center documents sources, dataset versions, quality notes, licenses, measurement limits, and reproducibility.
These values are MERRA-2 climate reanalysis model output, not rain-gauge measurements. They are useful for reading trends, but local accuracy is affected by model biases and by how complex terrain is represented within a grid cell. Sanad samples the roughly 0.5° monthly grid at each governorate centroid; this is not a spatial average of the governorate.
Official methodology documentationThese are national series for Syria, not governorate-level measurements. FAOSTAT distinguishes official figures from values estimated or imputed by FAO; the war years include estimated or imputed observations and should not all be read as Syrian official reporting.
Official methodology documentationThese are counts of features mapped in OpenStreetMap, so they measure mapping activity and coverage rather than the true number on the ground. Community contributors create the data, and coverage may be incomplete or uneven between areas. The data is licensed under ODbL and must be attributed to OpenStreetMap contributors.
Official methodology documentationThe World Bank compiles World Development Indicators from national and international sources, with series-specific methodologies. Syria series contain long gaps caused by interrupted reporting and conflict conditions, and some indicators stop before recent years. A blank means no value is available, not zero.
Official methodology documentationThese series cover populations registered or otherwise recorded within the categories included in UNHCR statistics; they are not a census of every displaced person. Data comes primarily from governments and UNHCR operations, and coverage varies by country and population category, so unregistered displacement is not fully counted.
Official methodology documentationMarket prices collected monthly by the World Food Programme from market monitors since 2011. Sanad publishes, per governorate, the median of that governorate's market prices for the month — not a single market and not below the governorate. SYP and USD are separate series (USD is converted at the exchange rate at collection time). Some values are WFP "aggregate" figures. Unofficial/parallel-market exchange rates are not included.
Official methodology documentationThese are field estimates from IOM Displacement Tracking Matrix (DTM) baseline rounds, activated in Syria from February 2025 after the December 2024 shift — not a registration of individuals. They count internally displaced persons and returnees per governorate per round, and figures are revised round to round. They differ methodologically from UNHCR registration counts, so the two should not be summed or directly compared.
Official methodology documentationFigures are as reported to FTS by donors and implementing organizations and are continuously revisable. Sanad includes paid contributions and commitments and excludes pledges. The series covers only the primary inside-Syria response plan; it never adds the regional 3RP or global/event-specific appeals. Data is national with no governorate breakdown.
Official methodology documentationPlaceholder methodology block for public documentation, audit trails, known limitations, and reproducibility notes.
Placeholder methodology block for public documentation, audit trails, known limitations, and reproducibility notes.
Placeholder methodology block for public documentation, audit trails, known limitations, and reproducibility notes.
Placeholder methodology block for public documentation, audit trails, known limitations, and reproducibility notes.