BoundaryAlt

MATLAB

hh = BoundaryAlt(h,hInt,hhInt)

Description

Maps input altitudes in the interval [hInt(1) hInt(2)] into altitudes in the interval [hhInt(1) hhInt(2)].

Intended to facilitate using atmospheric models in the earth's boundary layer where certain altitudes should be referenced to ground level, and other altitudes should be referenced to sea level. Generally, hInt(end) = hhInt(end) = boundary-layer altitude limit. However, code will accept other inputs and use them accordingly. Altitudes in interval hInt are set according to: hh = hhInt(1)+(diff(hhInt)/diff(hInt)).*(h-hInt(1)); Input altitudes less than hInt(1) are set to hhInt(1).

Parameters

Parameters	Description
h [vector]	Altitude above sea level (m)
hInt [array]	Altitude interval for mapping (m). Can be of size 1 x NumLayers+1 or NScreens x NumLayers+1.
hhInt [array]	Altitude interval for output (m). Can be of size 1 x NumLayers+1 or NScreens x NumLayers+1.

Return Values

Return Values	Description
hh [vector]	Mapped altitudes (m)

Examples

hh = BoundaryAlt(0,[0 5000],[1230 5000])
- hh = 1230, 0 m altitude maps to 1230 m
hh = BoundaryAlt(0,[1230 5000],[0 5000])
- hh = 0, 1230 m altitude maps to 0 m
hh = BoundaryAlt(1230,[1230 5000],[0 5000]
- hh = 0, 1230 m altitude maps to 0 m
hh = BoundaryAlt(1230,[1230 5000],[0 5000])
- hh = 0, 1230 m altitude maps to 0 m
[hTerr,GndAlt] = TerrainProfiler(x,G);
hh = BoundaryAlt(EarthAlt(x,G),[GndAlt repmat(5000,size(x,1),1)],[0 5000])
- Scales altitudes between ground level and 5 km to be between 0 and 5 km.