Prospective Work on Regridding of Remote Sensing Measurements Regridding of Remote Sensing...
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Transcript of Prospective Work on Regridding of Remote Sensing Measurements Regridding of Remote Sensing...
Prospective Work onRegridding of Remote Sensing Measurements
Y. CalisesiInternational Space Science Institute
V. SoebijantaBelgian Institute of Space Aeronomy
Comparison of remote soundings:
Homogenize respective meas. coordinates, e.g. units + vertical grid.
No problem for simple profile comparison, as simple profile interpolation would do the job…
But: problem when taking AKs + a-priori information into account! (cf. Rodgers and Connor, JGR 2003)
Method to convert also auxiliary retrieval products AKs, etc.
Idea (Trivial!)
: Retrieved profile on a given vertical grid
: Retrieved profile on another vertical grid
It exists W such as
or
And
or
: Pseudo-inverse of W
)x-W(xx-x 00
xy00 ε)xK(xyy
y00 ε)xx(Kyy
xWx *
*W
x
Wxx
)x-x(Wx-x 0*
0
Comparison procedure:
: original datasets (respective vertic. grids and units): transformed datasets (grids and units)