Snow Mapping and Classification from Landsat Thematic Mapper Data

Automated mapping of montane snow cover at subpixel resolution from the Landsat Thematic Mapper

A fully automated method uses Landsat Thematic Mapper data to map snow cover in the Sierra Nevada and make quantitative estimates of the fractional snow-covered area within each pixel. We model winter and spring reference scenes as linear mixtures of image end member spectra to produce the response variables for tree-based regression and classification models. Decision trees identify cloud cove...

Spectral Signature of Alpine Snow Cover from the Landsat Thematic Mapper

M a p p i n g of snow and estimation of snow characteristics from satellite remote sensing data require that we distinguish snow from other surface cover and from clouds and compensate for the effects of the atmosphere and rugged terrain. The spectral signature of the snowpack is calculated from a radiative transfer model accounting for scattering and absorption by the ice grains, water inclusi...

Utility of Landsat Thematic Mapper Data for Mapping Site Productivity in Tropical Moist Forests

Regression analysis was used to develop a relationship between Landsat 5 Thematic Mapper data and site quality of permanent sample plots. The thermal band (6) produced misleading results, but the ratio of band 4 on 5 showed promise when combined with geological information. Best results were obtained when regression analysis was restricted to ensure that at least one each of the visible (1 to 3...

Water Quality Assessment From Landsat Thematic Mapper Data Using Neural Network: An Approach to Optimal Band

The concern about water quality in inland water bodies such as lakes and reservoirs has been increasing. Owing to the complexity associated with field collection of water quality samples and subsequent laboratory analyses, scientists and researchers have employed remote sensing techniques for water quality information retrieval. Due to the limitations of linear regression methods, many research...

Landsat D Thematic Mapper Image Resampling for Scan Geometry Correction