Tuesday, October 16, 2018
The Pacific Northwest experienced another intense wildfire season. This photo was taken on August 15, 2018 where a large smoke-cloud is hovering over eastern Canada. Although there are numerous white or normal-looking clouds in the satellite imagery, the wildfire smoke is distinguishable by it's gray tone and its dense appearance versus the clumps and wisps of normal clouds. Analyzing the size of this smoke cloud can define a region and area of people who will be affected by poor air quality from the smoke. Poor air quality is threatening to those with asthma and heart conditions because the contaminated air impedes one's lungs. Sometimes, poor air quality can be a threat to the average person because of how the contaminated air reduces lung function. This is how it was for many during this August's wildfires as the government of British Columbia called for a state of emergency due to the health risks of the smoke. Analyzing the region most affected by this accumulation of smoke is important because citizens can be warned to take precaution for their health. This could potentially reduce the instances of asthma attacks or heart-related emergencies during wildfire season by advising people to exercise indoors or reduce time outside for the time being. Analyzing remote sensing images like this may be used as preventative efforts in public health.
Thursday, October 11, 2018
This is an image of the Foxe Basin, up in the Northwestern Passages in northern Canadian, north of the Hudson bay. It seems that the ice has a brownish tint. The reason that this subtle difference is so important is discovering the reason for the brownish tint of the ice. One theory is from anthropogenic sources such as aerosols from industrial factories that have been emitted in the atmosphere and being deposited on the ice. Other sources could include sediment movement in the ocean. So looking at multiple images of the same area at different times and looking at other physical properties of the ice, we can possibly get a better sense of sediment movements in the ocean.