Built-up land in the Doha Metro Area rises from 14.636 to 25.765 km² across a decade

Each map shows how built-up each neighbourhood looks that October. Darker magenta means a higher share of the 500 m neighbourhood is built. The north coast around Lusail stays among the densest parts of the outline in both years.

The square kilometres on the cards are that month’s built-up mask. The decade story is the first October set beside the last, not a smooth climb through every year in between.

NDBI is the built-up index this reading uses. A cell counts as built when NDBI sits above 0.18 and vegetation stays below 0.15. The Arid / desert zone profile sets those two lines so bare desert soil is less likely to read as built.

Mean NDBI across the area of interest in this run is 0.0761.

Each year contributes two satellite pictures for the same finished month, here October. Clear passes in October 2017 number 12. Clear passes in October 2026 number 11. A cell enters the built-up mask when NDBI is above 0.18 and vegetation stays below 0.15.

Gain and loss compare the first clear October with the last. Confirmed gain stayed built the next year. Confirmed loss stayed gone the next year. A flip that lasts only one October stays off both pictures.

The land consumption rate follows the land half of the UN land-consumption goal for cities, from the first picture to the last. This reading has no population, so it does not produce the full ratio.

Intermediate Octobers can jump on arid ground when bare soil answers NDBI. The finding that holds is the first October set beside the last.

Across a decade, built-up land in the Doha Metro Area rises from 14.636 km² to 25.765 km², a net gain of 11.129 km² and a rise of 76.04%.