(JERS) Japan's dedicated earth resources satellite system consisting of an L-band (23 cm or 9.8 in) synthetic aperture radar and a multispectral scanner —note JERS data have a spatial resolution of approximately 18 m (59 ft) and are designed to observe earth?s entire land area, including Antarctica, to obtain data useful for land survey, agriculture, forestry, fisheries, environmental protection, disaster prevention, and coastal monitoring This definition last updated 10/28/2008