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retrieve,
    class    = od,
    type     = an, 
    expver   = 1,
    date     = 19990215,
    time     = 12,
    param    = 130.128, 
    levtype  = pressure level,
    levelist = 1000/850/700/500,
    target   = "t.grb"

Retrieve wind components valid for tomorrow 5 days ago at 12:00 and 18:00 from yesterday's 12Z forecast at forecast made 7 days ago at 12 UTC at all 137 model levels  > see in MARS Catalogue

retrieve,
    type     = forecast, 
    param    = 131/132, 
    levtype  = model level,
    levelist = 1/to/137,
    date     = -17,
    time     = 12,
    step     = 48/54, 
    target   = "wind"

Retrieve geopotential and surface pressure for yesterday's from analysis produced 2 days ago, analysis cycles (00,06,12,18)  > see in MARS Catalogue

retrieve,
    class   = od,
    type    = analysis,
    levtype = surface,
    date    = -12,
    time    = 00/06/12/18,
    param   = 129.128/134.128,
    target  = "all.an"

Retrieve surface pressure and surface long-wave (thermal) radiation downwards at every 12-hour time-step for the 12Z forecast from two 12 days ago  > see in MARS Catalogue

retrieve,
    type    = forecast,
    param   = 134.128/175.128,
    date    = -212,
    step    = 12/to/240/by/12,
    time    = 12,
    levtype = sfc,
    target  = "sfc.grb"

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Retrieve the temperature on model levels 1, 2 and 3 for yesterday's a week old 12 hour forecast.   > see in MARS Catalogue

retrieve,
    type    = fc,
    date    = -17,
    time    = 12,
    step    = 12,
    levtype = ml,
    level   = 1/2/3,
    param   = 130,
    target  = "t_ml_1_2_3"

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Retrieve the 1000 hPa geopotential from yesterday's two weeks old 12 UTC forecast (> see in MARS Catalogue) for:

• the 12 hour forecast

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  title solution
  retrieve, type = fc, date = -114, time = 12, step = 12, levtype = pl, level = 1000, param = 129.128, target = "z1000_a"

  
  

• the 6, 12, 24 and 48 hour forecasts

  Expand
  title solution
  retrieve, type = fc, date = -114, time = 12, step = 6/12/24/48, levtype = pl, level = 1000, param = 129.128, target = "z1000_b"

  
  

• the 12 hour to 240 hour forecasts at 12 hour intervals

  Expand
  title solution
  retrieve, type = fc, date = -114, time = 12, step = 12/to/240/by/12, levtype = pl, level = 1000, param = 129.128, target = "z1000_c"

  
  

• all forecast time-steps (tip: you can use MARS catalogue to generate list of all available steps for you)

  Expand
  title solution
  Expand
  title solution
  retrieve, type = fc, date = -1, time = 12, # step = all, # The value "all" is convenient to use but MARS can only report on missing steps if # the full list of steps is specified: step = 0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/34/35/36/37/38/39/40/41/42/43/44/45/46/47/48/49/50/51/52/53/54/55/56/57/58/59/60/61/62/63/64/65/66/67/68/69/70/71/72/73/74/75/76/77/78/79/80/81/82/83/84/85/86/87/88/89/90/93/96/99/102/105/108/111/114/117/120/123/126/129/132/135/138/141/144/150/156/162/168/174/180/186/192/198/204/210/216/222/228/234/240, levtype = pl, level = 1000, param = 129.128, target = "z1000_d"

  
  

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Retrieve Total Precipitation, perturbed forecast overlap for 26th June 2023 (> see in MARS Catalogue)

See also FAQ: "How can I compute the accumulation using data from the overlap stream?"

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