# Comparison and validation of band residual difference algorithm and principal component analysis algorithm for retrievals of atmospheric SO2 columns from satellite observations

> Research article (Acta Physica Sinica, 2016) · cited 12× · AI/ML

**Wikidata**: [openalex:W3020659657](https://www.wikidata.org/wiki/openalex:W3020659657)  
**Source**: https://4ort.xyz/entity/comparison-and-validation-of-band-residual-difference-algorithm-and-principal-component-analysis-algorithm-for-retrieval