Introduction
This is a brief introduction of the main request parameter syntax.
| Note |
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We recommend that you get familiar with archive the data and their its availability using MARS browserCatalogue You can also get the request syntax using " View MARS request " feature. |
Syntax
| Code Block |
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|
verb,
keyword1 = value1,
... = value2,
keywordN = valueN |
...
| Code Block |
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| language | bash |
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| title | MARS request |
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|
retrieve,
class="ei",
stream=oper,
expver=1,
levtype=sfc,
param=165.128/41.128,
step=0,
grid=0.75/0.75,
time=00,
date=2013-09-01/to/2013-09-30,
area=75/-15/30/42.5,
type=an,
target="ei_sfc_165_41.grib" |
| No Format |
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title |
MARS
...
Request explanation
...
Identification Keywords
https://software.ecmwf.int/wiki/display/UDOC/Identification+keywords
| No Format |
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#Specifies
#Specifies the ECMWF classification given to the data
class="ei",
#Identifies the forecasting system used to generated the data when the same meteorological types are archived
stream=oper,
#Is the version of the data, 1 is OPERATIONAL
expver=1,
#Denotes type of level
levtype=sfc,
#Meteorological parameter
param=165.128/41.128,
#Determines the type of field to be retrieved:
type=an,
##DATE AND TIME KEYWORDS
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Date and Time Keywords
https://software.ecmwf.int/wiki/display/UDOC/Date+and+time+keywords
| No Format |
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#Specifies
#Specifies the forecast time step from forecast base time
step=0,
#Base time
time=00,
#Specifies the Analysis date, the Forecast base date or Observations date
date=2013-09-01/to/2013-09-30,
##POST-PROCESSING KEYWORDS
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Post Processing Keywords
https://software.ecmwf.int/wiki/display/UDOC/Post-processing+keywords
| No Format |
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#Output grid mesh
grid=0.75/0.75,
#Area
area=75/-15/30/42.5
##DATA STORAGE KEYWORDS
, |
Data Storage Keywords
https://software.ecmwf.int/wiki/display/UDOC/Data+storage+keywords
| No Format |
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#specifies a Unix file into which data is to be written after retrieval
target="ei_sfc_165_41.grib",
##OPTIONAL MARS SERVICE KEYWORD
#(Optional) argument to retrieve NetCDF format
format="netcdf",
|
Keywords
You can find all the keyword explanation in our Mars Keywords page.
There is an extra keyword that you can user within use in Access MARS Service that does not appear in the MARS Documentation:
| Keyword | definition |
|---|
| format | You can add format = |
""| to retrieve the data in NetCDF format. |
