## Additional MODIS Tile and Grid Information

** MODLAND Sinusoidal Grid**

Num | Parameter | Value | Description |

0 | Sphere | 6371007.181 | Radius of reference (meters) sphere |

1-3 | 0.0< | not used | |

4< | CentMer | 0.0 | Longitude of the central meridian |

5 | 0.0 | not used | |

6< | FE | 0.0 | False Easting in the same units as the sphere radius |

7 | FN | 0.0 | False Northing in the same units as the sphere radius |

8-14 | 0.0 | not used |

# MODLAND Intergerized Sinusoidal (ISIN) Grid

Num | Parameter | Value | Description |

0 | Sphere | 6371007.181 | Radius of reference (meters) sphere |

1-3 | 0.0 | not used | |

4 | CentMer | 0.0 | Longitude of the central meridian |

5 | 0.0 | not used | |

6 | FE | 0.0 | False Easting in the same units as the sphere radius |

7 | FN | 0.0 | False Northing in the same units as the sphere radius |

8 | NZone | 86400.0 | Number of equally spaced latitudinal zones (rows). Must be 2 or larger and even. |

9 | 0.0 | not used | |

10 | RFlag | 1.0 | Right 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 | 0.0 | not 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.