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MARS

Specifies the output target grid which can be either a Gaussian or a Latitude/Longitude grid.

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Octahedral reduced Gaussian (O grids)O1280O640O512O400O320O256O200O160O128O96O64O48O32
Original reduced Gaussian  (N grids) 
N640N512N400N320N256N200N160N128N96N64N48N32
Regular (Full) Gaussian (F grids)F1280F640F512F400F320F256F200F160F128F96F64F48F32

MARS requests specifying an unsupported grid will fail. For example, a retrieval request with grid=O123 will return an error.  If the letter denoting the type of Gaussian grid is omitted, e.g. grid=320, a full (or regular) Gaussian grid with 320 grid lines is returned.

For other keywords controlling the interpolation see the diagram below.

Image Added

Examples

grid = av,           # will return the archived model grid as archived
grid = 0.125/0.125,     # will return an 0.125 x 0.125 deg longitude/latitude grid
grid = F320,         #                  # will return a full Gaussian grid with 320 latitude lines between the pole and equator

Dissemination

Specifies the output grid which can be either a Gaussian or a Latitude/Longitude grid.

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