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MARS/Dissemination
Specifies the target grid which can be either a Gaussian or a Latitude/Longitude grid.
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grid = F160- full (or regular) Gaussian grid with 160 latitude lines between the pole and equatorgrid = N320- ECMWF original reduced Gaussian grid with 320 latitude lines between the pole and equator, see Reduced Gaussian Grids for grid numbers used at ECMWFgrid = O640- ECMWF octahedral (reduced) Gaussian grid with 640 latitude lines between the pole and equator
Not all grid names and grid number combinations are supported. Currently, the Gaussian grid names and numbers supported for MARS retrievals are:
| Octahedral reduced Gaussian (O grids) | O1280 | O1024 | O640 | O512 | O400 | O320 | O256 | O200 | O160 | O128 | O96 | O80 | O64 | O48 | O32 |
| Original reduced Gaussian (N grids) | N1280 | N1024 | N640 | N512 | N400 | N320 | N256 | N200 | N160 | N128 | N96 | N80 | N64 | N48 | N32 |
| Regular (Full) Gaussian (F grids) |
| F1280 | F1024 | F640 | F512 | F400 | F320 | F256 | F200 | F160 | F128 | F96 | F80 | F64 | F48 | F32 |
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.
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Dissemination
Dissemination uses MIR for interpolation and uses the default optionsDissemination lat/lon grids allowed are describe for each data set in the Catalogue pages
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