But that data doesn't always play well together.
In the years that followed, a host of satellites have launched to serve similar purposes. Summary: When the first Landsat satellite launched 50 years ago, it was the only game in town in terms of civilian land remote sensing.
SATELLITE EYES ARCHIVE
Mapping those dust sources is the focus of the Earth Surface Mineral Dust Source Investigation, or EMIT, which will be supported by NASA’s Land Processes Distributed Active Archive Center (LP DAAC), which is located at the USGS EROS Center. The warming and cooling of the atmosphere, snow melt, ocean or rain forest fertilization, and even cloud formation can all be affected by dust cloud composition. That’s a huge blind spot, because those unknown characteristics-such as the particles’ lightness or darkness-have an impact on what they do.
We can see those clouds in satellite imagery, but we don’t typically know much about the composition of that dust. Summary: Clouds of dust kicked up in places like the Sahara can travel thousands of miles across the planet. Micro-climate to macro-risk: mapping fine scale differences in mosquito-borne disease risk using remote sensingĮyes on Earth Episode 75 – Mapping Dust Sources WorldwideĬlockwise from lower left: Phil Brodrick, Raymond Kokaly, David Thompson.Amazon deforestation drives malaria transmission, and malaria burden reduces forest clearing.Guests: Anna Boser, PhD student, University of California-Santa Barbara Andy MacDonald, UC-Santa Barbara Earth Research Institute On this episode, we learn how a sensor onboard the International Space Station was used to calculate West Nile virus risk in California’s San Joaquin River Valley. Changes to the land’s surface can also make it easier for mosquitos to proliferate. Mosquitos are more active under certain environmental conditions, for example, and those conditions can be tracked at wide scales from above. Even so, these sensors can gather a host of information that helps to understand the movements and behaviors of these pesky little disease vectors, which are responsible for at least a million deaths a year. Clearly, sensors on a satellite or space station can’t see them. Mosquitos, of course, are far smaller than we are. Even the most advanced among them struggle to capture high-resolution imagery of individual human beings. Summary: Spaceborne sensors orbit hundreds of miles over our heads. Upper left: Anna Boser, lower left: Andy MacDonald New ECOSTRESS and MODIS Land Surface Temperature Data Reveal Fine-Scale Heat Vulnerability in Cities: A Case Study for Los Angeles County, CaliforniaĮyes on Earth Episode 76 - ECOSTRESS and Disease Risk.ECOSTRESS Shaping How We View Urban Heat Islands.Guests: Glynn Hulley, NASA Jet Propulsion Laboratory, Greg Spotts, City of Los Angeles On this episode of Eyes on Earth, we hear from a remote sensing scientist and a sustainability coordinator for the city of Los Angeles who teamed up to study the impact of cool pavement coating as an urban heat mitigation strategy. At the height of summer, heat disparities can have a large impact on at risk human populations. That gap is sometimes referred to as the urban heat island effect. What scientists can help us understand, particularly scientists who work with spaceborne, remotely sensed data, is just how big a difference there is between cities and the countryside. Anyone who's walked barefoot from a parking lot to a beach can tell you that. Summary: We don't need a scientist to tell us that city streets catch and hold heat. Greg Spotts (lower left) and Glynn Hulley with the graphic for the USGS EROS podcast " Eyes on Earth."
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