Mask a box

Masks grid cells inside a lon/lat or index box. The elements inside the box are untouched, the elements outside are set to missing value. All input fields need to have the same horizontal grid. Use sellonlatbox or selindexbox if only the data inside the box are needed.

Usage

cdo_maskindexbox(
  ifile,
  lon1 = NULL,
  lon2 = NULL,
  lat1 = NULL,
  lat2 = NULL,
  idx1 = NULL,
  idx2 = NULL,
  idy1 = NULL,
  idy2 = NULL,
  ofile = NULL
)

cdo_masklonlatbox(
  ifile,
  lon1 = NULL,
  lon2 = NULL,
  lat1 = NULL,
  lat2 = NULL,
  idx1 = NULL,
  idx2 = NULL,
  idy1 = NULL,
  idy2 = NULL,
  ofile = NULL
)

Arguments

ifile

String with the path to the input file.

lon1

FLOAT - Western longitude

lon2

FLOAT - Eastern longitude

lat1

FLOAT - Southern or northern latitude

lat2

FLOAT - Northern or southern latitude

idx1

INTEGER - Index of first longitude

idx2

INTEGER - Index of last longitude

idy1

INTEGER - Index of first latitude

idy2

INTEGER - Index of last latitude

ofile

String with the path to the output file.

Details

masklonlatbox  Mask a longitude/latitude box
               Masks grid cells inside a lon/lat box. The user must specify the longitude and latitude of the edges of the box.
               Only those grid cells are considered whose grid center lies within the lon/lat box.
               For rotated lon/lat grids the parameters must be specified in rotated coordinates.
maskindexbox   Mask an index box
               Masks grid cells within an index box. The user must specify the indices of the edges of the box.
               The index of the left edge can be greater then the one of the right edge. Use negative indexing to
               start from the end. The input grid must be a regular lon/lat or a 2D curvilinear grid.