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PFPTCH9 - Percentage of 1 km grid cell classified as patch forest (9x9) Percentage of patch forest is calculated using a moving 270 meter
square window (9 pixels x 9 pixels) across the land cover. When
the percent forest in the window is less than 40%, the forest cell
in the center of the window is classified as patch. The number of
patch forest cells in the 1 km grid cell reporting unit is then
divided by the grid cell’s total land area (the total number
cells in the grid cell boundary minus those cells classified as
water) to derive PFPTCH9. Patch forest is unlikely to be connected
across an area or provide any interior habitat. |