3/29/2024 0 Comments California smoke map![]() ![]() As AOD increases to 0.5, 1.0, and greater than 3.0, aerosols become so dense that sun is obscured (ranging from yellow to dark red on the scale). ![]() From an observer on the ground, an AOD of less than 0.1 is “clean” (lightest yellow) – characteristic of clear blue sky, bright sun, and maximum visibility. Aerosols scatter and absorb incoming sunlight, which reduces visibility. Credit: NASA Worldviewįrom the Worldview site: “Aerosol Optical Depth (AOD) (or Aerosol Optical Thickness) indicates the level at which particles in the air (aerosols) prevent light from traveling through the atmosphere. This image was taken by the MODIS, Moderate Resolution Imaging Spectroradiometer, instrument on the Terra satellite on August 20, 2020. Image showing the optical depth of the smoke coming off the California wildfires. Individuals with cardiovascular or respiratory conditions (e.g., asthma), fetuses, infants, young children, and the elderly may be more vulnerable to the health effects of smoke exposure. Individuals are advised to limit their physical exertion if exposure to high levels of smoke cannot be avoided. Exposure to high levels of smoke should be avoided. The type and amount of particles and chemicals in smoke varies depending on what is burning, how much oxygen is available, and the burn temperature. Smoke can contain many different chemicals, including aldehydes, acid gases, sulfur dioxide, nitrogen oxides, polycyclic aromatic hydrocarbons (PAHs), benzene, toluene, styrene, metals, and dioxins. All smoke contains carbon monoxide, carbon dioxide, and particulate matter (PM or soot). The smoke released by any type of fire (forest, brush, crop, structure, tires, waste, or wood burning) is a mixture of particles and chemicals produced by incomplete burning of carbon-containing materials. ![]() Although the smoke did not go into Baja California it has remained offshore over the Pacific Ocean.įire is devastating, and the effects of smoke on humans can also be devastating. The smoke has moved as far north and east as Pocatello, Idaho and as far west and south as mid-Baja California, Mexico. The NASA Worldview website has an application that can measure distances within the app and measuring this smoke trail showed the trail’s northeast to southwest trail is approximately 1,214 miles (1,954 kilometers) long. NASA’s Terra satellite was able to capture the huge swath of smoke that has been generated by the California wildfires and dispersed by the winds surrounding those fires on August 20, 2020. ![]()
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