A Scoping Review of Landform Classification Using Geospatial Methods

Landform classification is crucial for a host of applications that include geomorphological, soil mapping, radiative and gravity-controlled processes. Due to the complexity rapid developments in field landform delineation, this study provides scoping review identify trends field. The premised on PRISMA standard aimed respond research questions pertaining global distribution studies, methods used, datasets, analysis units validation techniques. articles were screened based relevance subject matter which total 59 selected full review. parameters relating where studies conducted, analysis, scale approaches collated summarized. found predominantly conducted Europe, South East Asia North America. Not many America African region. revealed locally sourced, very high-resolution digital elevation model ( DEM) products becoming more readily available employed research. Of globally DEM sources, SRTM still remains most commonly used dataset Most delineation are expert knowledge. While object-based gaining momentum recently, pixel-based common also growing. Whereas techniques appeared be mainly knowledge, did not report These results suggest systematic may necessary. Other aspects require investigation comparison different DEMs exploring probing value quantitative data-driven methods.