Columbia subject headings:
Artificial satellites in earth sciences--Congresses.
Earth Observing System (Program)--Congresses.
Earth resources technology satellites--Congresses.
Earth sciences--Remote sensing--Congresses.
Harvard subject headings:
Artificial satellites in earth sciences--Congresses.
Earth Observing System (Program)--Congresses.
Earth resources technology satellites--Congresses.
Earth sciences--Remote sensing--Congresses
Radiometers--Congresses.
Spectroradiometer--Congresses.
Princeton subject headings:
Earth resources technology satellites--Congresses.
Imaging systems--Congresses.
Optical detectors--Congresses.
Remote sensing--Congresses.