Shadow Acc - 100 Cities

Large collection of accumulated shadow tiles for over 100 cities (in 6 continents), computed using Deep Umbra. The complete dataset contains 999,807 map tiles, totaling over 16 GB. The selected cities cover six continents and have different building morphologies and urban street networks. We hope that the data will provide new opportunities for urban experts to perform not only fine-grained analyses (i.e., what is the best location for a certain facility?) but also large-scale comparisons and exploratory analyses across neighborhoods or cities (e.g., what is the park with least shadow amount? or what is the city with least shadow amount?). The dataset currently contains accumulated shadow information, but the accumulated sunlight can be obtained by simply computing the complement of the accumulated shadow value. The dataset and web viewer can be accessed at urbantk.org/shadows.