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Showing posts from December, 2020

Unmapped regions of the ocean floor

There is more data about the surface of Mars than there is about the Earth's seafloor . Just 20 percent of the world ocean floor has so far been planned in detail. Most of what we know about the ocean topography was received from satellites' gravity data. That's why now, seafloor maps have the resulting resolution is approximately two square miles (5.2 square kilometers). By contrast, topographic maps of Mars and Venus have a spatial resolution that's fifty times more accurate. Without exaggerating, we can say that we do not know anything about the world ocean and processes that occur there. Seabed 2030 is an international attempt to crowdsource datasets to comprehensively map the world's oceans at an exact 100m resolution.

The U.S. as Archipelago

The U.S. population distribution is uneven. This irregular distribution of the Homo sapiens is due to historical and physical factors like climate or soil conditions. Hence, about 40%t of the United States population lived on the coast, and the western U.S.'s broad expanses are almost empty. I tried to draw the United States' block-level population density as a relief map. Unpopulated areas are colored like a continental shelf. More maps you can find here .

Which Countries Have the Worst Air Pollution?

In many parts of the earth, sky-blue is a rarity—air pollution from manufacturing processes and cars cover cities skies in smog haze every day. Interesting to know how extent does air pollution force the human population around the globe? To clarify this issue, data scientist Matt Dzugan has designed a cartogram that shadows each nation based on levels of atmospheric particulate matter (PM2.5) air pollution endured by the population residing there. This original map or cartogram resizes nations' boundaries based on their cumulative populations, and each square depicts 500 thousand people.  According to Matt Dzugan, the cartogram view is intended to give a bird's eye view of the impact of air pollution and atmospheric particulate matter (PM2.5) on human lives. Very populated China and India present the most conspicuously, while other nations like Canada or Australia seem to disappear off the cartogram almost wholly. Eight hundred dark brown squares on this map (a PM2.5 concentr