Remote Sensing and GIS glossary

A radiometric transformation in which a higher-resolution panchromatic image is fused with a lower-resolution multiband raster dataset. It is used to increase spatial resolution and better visualize a multiband image.

Remote sensing of microwave energy naturally reflected or radiated from the Earth's surface.

The study of the seasonal cycles of plants, animals, and climate

In remote sensing, the fundamental unit of data collection. A pixel is represented in a remotely sensed image as a cell in an array of data values.

The vehicle that supports and transports sensors that gather remote sensing data.

Acronym for Portable Network Graphics. A bitmapped graphics format similar to GIF.

The direction of orientation in which the electrical field vector of electromagnetic radiation circulate.

A data transformation method that rotates the axes of the input bands to a new multivariate attribute space in which the axes are uncorrelated. The main reason to transform the data in a principal component analysis is to compress data by eliminating redundancy.

The means by which you display the coordinate system and your data on a flat surface.

Reduced-resolution datasets stored with imagery that are used to read and display imagery at lower resolutions.