Abstract: The hexagonal grid based on a partition of the icosahedron has distinct geometrical qualities for the mapping of a sphere and also presents some indexing difficulties. The applicability of this grid to the primitive equations ...

Abstract: The Eole Experiment with 480 constant level balloons released in the Southern Hemisphere is described. Each balloon, floating freely at approximately the 200-mb level, is a precise tracer of the horizontal motion of air ...

Abstract: The EOLE experiment with 480 constant-volume balloons distributed over the Southern Hemisphere approximately at the 200-mb level, has provided a unique, highly accurate set of tracer trajectories in the general westerly ...

Abstract: The EOLE experiment has provided a uniquely consistent and uniform set of 85,000 precise wind data, determined from the essentially horizontal displacements of over 480 constant-level balloons released in the Southern ...

Abstract: The EOLE experiment with 480 constant?volume balloons distributed over the Southern Hemisphere at about the 200?nib level, has provided a unique set of trajectories of tagged particles in the general westerly circulation. ...

Abstract: Ambient temperature measurements with usual thermistors from constant-level balloons were found to give erratic, quite erroneous data. The cause of error is found to be the differential heating of the thermistor support ...

Abstract: This paper describes the principles adopted by the NASA Earth Science Enterprise in formulating a comprehensive 2002?2010 research strategy for earth system science, and outlines one component of this broad interdisciplinary ...