Hyperspectral remote sensing is the definitive optical tool for increasing knowledge and understanding of the Earth's surface. Contiguous high-resolution spectrometry provides a new dimension in mapping capability because of the potential for quantitative measurement of surface biogeochemistry. previous termAlexander Goetznext term provided the vision and leadership that has produced nearly all critical developments in this field. He was among the first to recognize that spectrometry would change optical remote sensing from qualitative observations to quantitative physical measurements. His significant accomplishments over the last 25 years include development of critical image processing and atmospheric correction software, spectrometers that made it possible to move research out of the lab and into the field environment, and the development of NASA's airborne imaging spectrometer program. This special issue is dedicated to Dr. previous termGoetznext term and his accomplishments.