On December 22

1990

the famous pedo geographer

expert in micro-wave remote sensing and geographic information system

Graduate Dean of Department of Geography

University of California

Santa Barbara

Professor David Simonett departed from the world. He devoted his life to the development of geography in the United States

to the establishment of the National Center for Geographic Information and Analysis. Professor Simonett was a prolific writer

whose book

《Manual of Remote Sensing》 （Vol. I） has promoted the development of remote sensing internationally. The establishment of the Earth Resources Company makes it possible to apply remote sensing and geographic information system to the exploitation of natural resources in the States with a remarkable benefit in economy.Professor Simonett was not only a world-famous educater

a scientist but also a good teacher and helpful friend to the Chinese scientific and technological field. He showed deep concern and gave ethusiastic guidance to those Chinese who were studying or doing research work in University of Califonia

Santa Barbara.. He had been invited to investigation and to academic lectures in China. He gave lots of cordial assistance to the Chinese people. In 1986

the Chinese Academia Sinica awarded him the title of Honorary Professor of Institute of Remote Sensing Application."Professor Simonett will always be remembered for his friendship and assistance to the Chinese people.