Global Science & Technology, Inc. (GST) Chief Scientist Dr. Darrel Williams is scheduled to give a presentation on a new cost-effective small satellite concept that can provide imagery of sufficient quality and quantity to augment global Landsat coverage. The presentation will take place at the GST iLab located on the second floor, suite 1235 of the Alan B. Mollohan Innovation Center at 12 p.m., Thursday, April 28.
Dr. Williams will describe this concept, referred to as LOGICAL, which stands for Land Observations Globally In a Cost-effective Augmentation of Landsat. GST believes it is possible to build and launch a small-sat Landsat-like mission, not including the thermal infrared capability, for a cost that is approximately 10% that of a typical "gold standard" Landsat mission.
"The goal of the LOGICAL concept is to derive cost-effective alternative solutions that can provide imagery of sufficient quality and quantity to augment, but not replace, global Landsat coverage," Dr. Williams said. "And we think this augmentation role can be done for much less cost than a standard Landsat mission." Earth scientists have been using Landsat image data to document global land cover and land use change since 1972. The archive of Landsat imagery constitutes some of the most valuable climate data records available to the world. There has been a longstanding interest in not only maintaining the continuity of Landsat imaging, but in increasing its temporal repeat frequency to improve agricultural and ecological monitoring for food security, water resource allocation, and carbon stock assessments, among other uses. However, the prospect of maintaining the current 8-day repeat coverage provided by the Landsat 5 and 7 missions over the past decade will be hard to realize given the escalating production costs of these high precision missions. Dr. Williams' presentation is open to the public and will take place at the Alan B. Mollohan Innovation Center; 1000 Technology Drive; Second floor, suite 1235 at 12 p.m., Thursday, April 28. Those interested please contact Ms. Meaghan Smith at: Meghann.email@example.com
For more information, contact John Dahlia's direct line: (304) 368-1862 ext. 14; cell: (304) 657-7095; email: firstname.lastname@example.org.
About the Presenter
Dr. Williams is GST's Chief Scientist. He spent his entire career at NASA Goddard Space Flight Center where he served most recently as the Associate Chief of the Hydrospheric and Biospheric Sciences Laboratory within the Earth Science Division. He was also the Landsat Project Scientist from 1992 until his recent retirement. Throughout his NASA career, Dr. Williams has been actively involved in remote sensing research. The majority of this work has involved the development and enhancement of techniques for assessing forest ecosystems worldwide.