Please note that in contrast to runGdal
, MRT's
resample
function does not offer an 'overwrite' option, and hence,
existing files will be overwritten (see also
MRT User's Manual, p. 59).
Further arguments that require particular attention when operating MRT are
summarized in the following list:
dataFormat
:
Output file formats include:
Any other format specified through MODISoptions
or
'dataFormat' is ignored and set to "GeoTiff"
.
outProj
:
MRT uses calls to the General Cartographic Transformation Package (GCTP) and as such allows projection to the following mapping
grids:
Albers Equal Area ("AEA"
)
Equirectangular ("ER"
)
Geographic ("GEO"
)
Hammer ("HAM"
)
Integerized Sinusoidal ("ISIN"
)
Interrupted Goode Homolosine ("IGH"
)
Lambert Azimuthal ("LA"
)
Lambert Conformal Conic ("LCC"
)
Mercator ("MERCAT"
)
Molleweide ("MOL"
)
Polar Stereographic ("PS"
)
Sinusoidal ("SIN"
)
Transverse Mercator ("TM"
)
Universal Transverse Mercator ("UTM"
)
See also 'References' and
MRT User's Manual, pp. 6 and 29.
projPara
:
Output projection parameters are autodetected for
outProj %in% c("SIN", "GEO")
:
For detailed information on defining paramters for other target projections,
please refer to 'Appendix C: Projection Parameters' in the
MRT User's Manual, p. 65-66.