Altitude in Km above sea level for a given pair of coordinates (lat,long) 1.0

function alt_km=ITU_P1511(lat,long)computes altitude of a site at given lat,long coordinatesby means of bicubic interpolation using itu topo 0.5 degrees resolutionmatrix.refer to ITU-R Recommendation P 1511.INPUTSlat: latitude + = North, -=southlong: longitude, positive degrees East.Required data: TOPO_0d5.txt, available from the ITU-R SG3 software sitehttp://www.itu.int/ITU-R/study-groups/soft...-topography.ziphttp://www.itu.int/ITU-R/index.asp?categor...nk=rsg3&lang=enexample of usage:alt_km=ITU_P1511(52,0); %somewhere in the UKLuis Emiliani. Rel. 16/01/2009

Requirements:	No special requirements
Platforms:	Matlab
Keyword:	Alt Ditu Latlongcomputes,  Coordinatesby,  Dsouthlong,  Eastrequired,  Emiliani,  Latitude,  Latlong,  Longitude,  Means,  North,  Positive,  Software,  Topo Txt,  Ukluis,  Usagealt Ditu
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