Additional MODIS Tile and Grid Information


 MODLAND Sinusoidal Grid


NumParameterValueDescription
0Sphere6371007.181Radius of reference (meters) sphere
1-3 0.0<not used
4<CentMer0.0Longitude of the central meridian
5 0.0not used
6<FE0.0False Easting in the same units as the sphere radius
7FN0.0False Northing in the same units as the sphere radius
8-14 0.0not used

 

 MODLAND Intergerized Sinusoidal (ISIN) Grid


NumParameterValueDescription
0Sphere6371007.181Radius of reference (meters) sphere
1-3 0.0not used
4CentMer0.0Longitude of the central meridian
5 0.0not used
6FE0.0False Easting in the same units as the sphere radius
7FN0.0False Northing in the same units as the sphere radius
8NZone86400.0Number of equally spaced latitudinal zones (rows). Must be 2 or larger and even.
9 0.0not used
10RFlag1.0Right justify columns flag is used to indicate what to do with zones with an odd number of columns. If it has a value of 0 or 1 it indicates the extra column is on the right (zero) or left (one) of the projection y-axis. If the flag is set to 2 the number of columns are calculated so there are always an even number of column in each zone.
11-14 0.0not used

 

 MODLAND TileGrid ID

The MODLAND TileGrid ID is an 8 digit integer, such as 51018009, that is used to specify a gridded product's projection, tile size and horizontal and vertical tile number.
The first digit (the leftmost digit) is used to identify the projection, i.e., the tiling scheme. The 3 possible values are:

   3 - Lambert Azimuthal Equal-Area projection with projection center at the North Pole
   4 - Lambert Azimuthal Equal-Area projection with projection center at the South Pole
   5 - Sinusoidal projection

The second digit is used to specify the tile size. Only one possible value is used:

   1 - full size tile

The next 3 digits (digits 3 to 5) are used to specify horizontal tile number, and the last 3 digit (digits 6 to 8) is for the vertical tile number. The ranges of horizontal and vertical tile number is depending on the projection and the tile size, they are listed in the table below.

Projection Size Horizontal Tile Range Vertical Tile Range
5 1 0 to 35 0 to 17
3 & 4 1 0 to 8 0 to 8

Example: TileGrid ID 51018009 identifies a full size tile in the Sinusoidal projection with horizontal tile number 18 and vertical tile number 9.

 

30-Sep-2020