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@@ -62,18 +62,6 @@ Each **`entry`** element contains the following elements: | |
</entry> | ||
---- | ||
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`Entry` elements may optionally also contain the following elements: | ||
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---- | ||
<grib>GRIB parameter code</grib> | ||
<amip>AMIP identifier string</amip> | ||
---- | ||
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Not all variables have equivalent AMIP or GRIB codes. | ||
ECMWF GRIB codes start with **`E`**, NCEP codes with **`N`**. | ||
Standard codes (in the range 1-127) are not prefaced. | ||
When a variable has more than one equivalent GRIB code, the alternatives are given as a blank-separated list. | ||
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The **`alias`** elements do not contain definitions. | ||
Rather they contain the value of the **`id`** attribute of an **`entry`** element that contains the sought after definition. | ||
The purpose of the **`alias`** elements are to provide a means for maintaining the table in a backwards compatible fashion. | ||
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@@ -114,16 +102,12 @@ In exceptional cases the **`alias`** element may contain two elements: | |
<contact>[email protected]</contact> | ||
<entry id="surface_air_pressure"> | ||
<canonical_units>Pa</canonical_units> | ||
<grib>E134</grib> | ||
<amip>ps</amip> | ||
<description> | ||
The surface called "surface" means the lower boundary of the atmosphere. | ||
</description> | ||
</entry> | ||
<entry id="air_pressure_at_sea_level"> | ||
<canonical_units>Pa</canonical_units> | ||
<grib>2 E151</grib> | ||
<amip>psl</amip> | ||
<description> | ||
Air pressure at sea level is the quantity often abbreviated | ||
as MSLP or PMSL. sea_level means mean sea level, which is close | ||
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