[ncl-talk] TRMM 2A12 data
Dennis Shea
shea at ucar.edu
Tue May 31 15:17:15 MDT 2016
I don't think people associated with ncl-talk have time to read a large
document. We have our own jobs to do.
---
Look at your data. You must look at the file's contents.
Presumably you have something like:
%> ncl_filedump 2A12.20100101.69095.7.HDF -v heightLayerTop | less
Many part snipped out.
dimensions:
nlayer = 28
ncluster = 100
nfindex = 13
nspecies = 6
nscan = 2921 // unlimited
npixel = 208
float heightLayerTop ( nlayer )
units : km
hdf_name : heightLayerTop
float Latitude ( nscan, npixel )
units : degrees
hdf_name : Latitude
float Longitude ( nscan, npixel )
units : degrees
hdf_name : Longitude
float surfaceRain ( nscan, npixel )
units : mm/hr
hdf_name : surfaceRain
float cloudWaterPath ( nscan, npixel ) <==== *no layers*
units : kg/m^2
hdf_name : cloudWaterPath
float cluster ( ncluster, nlayer, nfindex, nspecies )
hdf_name : cluster
byte clusterNumber ( nscan, npixel, nspecies )
hdf_name : clusterNumber
float clusterScale ( nscan, npixel, nspecies )
hdf_name : clusterScale
Variables:
Variable No. 0
heightLayerTop:
0.5000 1.000 1.500 2.000 2.500 3.000
3.500 4.000 4.500 5.000 5.500 6.000
6.500 7.000 7.500 8.000 8.500 9.000
9.500 10.00 11.00 12.00 13.00 14.00
15.00 16.00 17.00 18.00
=====================================
So ...
layer index 0 ==> 0.5000
layer index 1 ==> 1.000
etc
====================================
LAYER = 1 ; you specify
fa12 = addfile("....hdf","r")
x_1km = fa12->cluster(?, LAYER, ?,?)
printVarSummary(x_1km)
======================================
The Latitude and Longitude units must be changes to degrees_north and
degrees_east
On Sat, May 28, 2016 at 12:11 PM, Geeta Geeta <geetag54 at yahoo.com> wrote:
> Hi .
> i have to make spatial plots of each hydrometeor available in 2A12 TRMM
> data.
> The document says that (Pls refer to Pg 119 of the document attached).
>
> Profile Value = clusterScale * cluster(S,F,L,C)
> These arrays are of different sizes. How can I get the spatial plot of say
> CLOUDWater at a height of 1.0km above msl.
> I am able to plot surface_rain variable but not the variable which is
> extending in the vertical
>
> Pls suggest.
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