A draft Request for Proposals (RFP) for an LDCM reflective band instrument, the Operational Land Imager (OLI), was released on Thursday, Dec. 7 on the NASA Acquisition Internet Service (NAIS). Please see, “Draft Document – Posted on Dec 07, 2006.”

Data as Good as it Gets: A Discussion with Brian Markham
Why do we calibrate Landsat data? We spoke with Brian Markham, a key figure of Landsat calibration science for four decades. He said that it all comes down to this: “If we’re using a system to quantify changes on the Earth, we must make sure the system we’re using is not changing.”