[GRASSLIST:5623] change in projection

[Miguel A. Altamirano del C]

I have a data sets with the following characteristics:
 
Numer of rows        =  8384
Number of columns =  9102
 
XY corner coordinates :
Lower left:   -4462500.000,  -3999500.000
Upper left:   -4462500.000,   4384500.000
Upper right:  4639500.000,   4384500.000
Lower right:  4639500.000,  -3999500.000
 
Projection used: Lambert azimutal equal area
                        units = meters
                        pixel size = 1000 mts
                        Radius of sphere of influence = 6,370,997, mts
                        Longitud of origen = 100 00 00W
                        Latitud of origen = 45 00 00N
                        False easting = 0.0
                        False northing = 0.0
 
I can get it with "r.in.bin ..." in "location 1", but i need it in lat-long projection and when i try to get it in "location 2" using the following parameters into the "PROJ_INFO" file ;
type of projection= ll (lat-lon), datum= wgs84, gridnads= conus, ellips= wgs84.
With g.region n=90 s=-90 w=-180 e=180 res=0.008333 (30 secs) and using the "r.proj ..." comand , i obtain my transformation with the following coordinates of the raster new image; n=40 s=-36 w=-49 e=51res=0.008333, but it's wrong because the coordinates must be aproximately n=80 s=10 w=-170 e=-40. 
How can i solve my problem?, which are the correct parameters in the "PROJ_INFO" file?, i try with ellips = sphere and can't get results, where i must to definite lat, lon of origen and false northing and easting?
 
The data sets are int the urls:
 
http://lpdaac.usgs.gov/gtopo30/hydro/namerica.asp
 
and can be of the type : Download HYDRO1k DEM for North America as a tar file (28.2 MB).
 
I wait that anyone can help me in this.
 
Miguel



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