[ncl-talk] integrate underground vertical level

[sunmin park]

Thank you!!!

Sun-



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2017-10-16 7:46 GMT-07:00 Dennis Shea <shea at ucar.edu>:

> I believe so.
> ------
> There is no '*simpne_n*' version of the function so you will have to use
> dimension reordering.
>
> Both of the following return:
>
> result(ntim,nlat,mlon)
> -----
>
> [a] depth[*]
>
> result  = *simpne*(depth,f(time|:,lat|:,lon|:,depth|:))
>
> [b] depth(time,depth,lat,lon)
>
> result  = *simpne*(depth(time|:,lat|:,lon|:,depth|:) \
>                 ,    f(time|:,lat|:,lon|:,depth|:) )
>
> -----
>
> Add attributes:
>
> result at long_name = "vertical integral: "+f at long_name
> result at units     = "..."
>
> ===
>
> Add coordinate information:
>
> copy_VarCoords(f(:,0,:,:), result)
>
> ---
>
> printVarSummary(result)
>
> printMinMax(result, 0)
>
>
> On Sun, Oct 15, 2017 at 1:56 PM, sunmin park <mireiyue at gmail.com> wrote:
>
>> Thank you Dennis!
>> Is the function "simpne" works like that??
>>
>> Sun-
>>
>>
>>
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>>
>> 2017-10-13 7:08 GMT-07:00 Dennis Shea <shea at ucar.edu>:
>>
>>> Simple Integration is :    SUM( x*dx)
>>>
>>> Does the file have any variable like:
>>>      SOIL_LAYER_THICKNESS(time, soil_layers) ;
>>>      X (time, soil_layers ydim, xdim)           ;  (0,1,2,3) <=dimension
>>> numbers
>>> ---
>>> f = *addfile*("..." , "r")
>>>
>>> slt = f->SOIL_LAYER_THICKNESS
>>> x   = f->X
>>>
>>> SLT = *conform*( x, slt, (/0,1/) )    ; convenience, clarity
>>> XI    = *dim_sum_n*( x*SLT, *1*)     ; sum (integrate) the product;
>>> (ntim,nlat,mlon)
>>> *copy_VarCoords*(X(:,0,:,:), XI)   ; copy any coordinsate
>>> XI at long_name = "Integration: "+x at long_name
>>> XI at units  = "..."
>>> *printVarSummary*(XI)
>>>
>>> ----
>>> if you do not have a 'SOIL_LAYER_THICKNESS' variable, you will have to
>>> create one.
>>>
>>> good luck
>>>
>>> On Thu, Oct 12, 2017 at 2:02 PM, sunmin park <mireiyue at gmail.com> wrote:
>>>
>>>> Hello NCL users
>>>>
>>>> I have dataset which is soil moisture and it has 15 vertical levels. I
>>>> need to integrate the levels to the levels I want. I have been looking for
>>>> a function but so far I can find functions for pressure interpolation. Is
>>>> there any function that integrate underground values?
>>>>
>>>> Thank you
>>>> Sun-
>>>>
>>>> --
>>>>
>>>> Sunmin Park,
>>>>
>>>> PhD Candidate, Department of Earth Science,
>>>>
>>>> University of California Riverside
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>
>>
>>
>> --
>>
>> Sunmin Park,
>>
>> PhD Candidate, Department of Earth Science,
>>
>> University of California Riverside
>>
>>
>>
>>
>>
>>
>


-- 

Sunmin Park,

PhD Candidate, Department of Earth Science,

University of California Riverside
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