[R-sig-Geo] esri_pe_string to proj4?

[Martin Ivanov]

Dear all,

I have 2m-temperature data with the following projection information:
esri_pe_string = 
"GEOGCS[\"GCS_WGS_1984\",DATUM[\"D_WGS_1984\",SPHEROID[\"WGS_1984\",6378137.0,298.257223563]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],VERTCS[\"EGM96_Geoid\",VDATUM[\"EGM96_Geoid\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]" 


I need to project the data on a standard latitude-longitude grid.
But to do this I have to create a SpatialPoints object and specify a 
proj4 string.
Any ideas how to find the correct proj4 specification for the above 
mentioned projection?
Or is there any other way to incorporate the esri_pe_string info into an 
R object so that I can
transform the data coordinates?

Any suggestions will be appreciated.

Best regards,

-- 
Dr. Martin Ivanov
Eberhard-Karls-Universität Tübingen
Mathematisch-Naturwissenschaftliche Fakultät
Fachbereich Geowissenschaften
Water & Earth System Science (WESS)
Hölderlinstraße 12, 72074 Tübingen, Deutschland
Tel. +4970712974213