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Environment

News : Sensors/Data Acquisition
Beach Buoys Detect Water Contamination

Beachgoers may soon be able to know in a timely manner if the water is clean enough for swimming. The technology comes in the form of buoys that are deployed in the water near a beach. By combining statistical models with real-time data gathered by sensors embedded in the buoys, they provide quick and...

News : Data Acquisition
AI-Driven Application Stops Poachers

With support from the National Science Foundation (NSF) and the Army Research Office, researchers are using artificial intelligence (AI) and game theory to solve poaching and illegal logging.

News : Green Design & Manufacturing
Graphene-Based Device Improves Water Filtering

According to the World Economic Forum’s Global Risks Report, lack of access to safe, clean water is the biggest risk to society over the coming decade. A new graphene-based filter built by Monash University and the University of Kentucky allows water and other liquids to be filtered nine times...

News : Test & Measurement
NASA Tests Life-Detection Drill in Earth’s Driest Place

The Atacama Rover Astrobiology Drilling Studies (ARADS) project completed its first deployment after one month of field work in the hyper-arid core of the Atacama Desert in Chile, the “driest place on Earth.” More than 20 scientists from the United States, Chile, Spain, and France...

Briefs : Green Design & Manufacturing
Daily Mesoscale Sea Surface Salinity from Evaporation and Precipitation

This model leads to a method for deriving sea surface salinity from evaporation and precipitation data at improved resolution.

Quantification of salinity is hampered by the lack of time and space resolution of existing measurements and models. At present, skin...

Briefs : Green Design & Manufacturing
Software for Inferring the Aerosol Water and Soot Fractions from Remote Sensing Measurements

The technique uses the aerosol real refractive index.

Aerosol water content and soot concentrations are important components of aerosol forcing. Aerosols contain varying amounts of water depending upon their aerosol hygroscopicity, and...

Briefs : Aerospace
Algae Photobioreactor Using Floating Enclosures With Semi-Permeable Membranes

Various species of algae are known to produce valuable products ranging from food to fertilizer to biofuels. Methods have been developed for producing biofuels by processing algae and other micro-organisms that grow in aquatic environments, but the largescale...

Briefs : Green Design & Manufacturing
Parallelization of Snowflake Growth Simulation

Gravner and Griffeath have developed a serial numerical model that simulates the growth of snowflakes in three dimensions under the assumptions of 24-fold symmetry. To allow for much larger and asymmetric snowflakes as well as to reduce simulation time, their model was re-implemented using...

Briefs : Green Design & Manufacturing
Soil Remediation with Plant-Fungal Combinations

This work applies to remediation and restoration of soil contaminated by fuel, polychlorinated biphenyl (PCB) wastes, etc. While there can be a beneficial effect of microbial communities, individual plant-fungus combinations can vary in their efficacy in removing pollutants from the environment....

Briefs : Photonics/Optics
Continental-Scale Mapping of Adélie Penguin Colonies from Landsat Imagery

The Adélie penguin has a circum-Antarctic distribution and is widely considered a useful indicator of status and change in the Antarctic and Southern Ocean ecosystems. Breeding distribution of the Adélie penguin was surveyed with Landsat-7 Enhanced Thematic Mapper Plus...

News : Software
NASA Shakes Up Earthquake Warning Systems

The most important information that is immediately needed for earthquake disasters is the location, depth, and magnitude of the earthquake. The most common method of establishing an earthquake's magnitude is using seismic sensors on the ground that measure the shaking of the earth's crust. Authorities...

News : Software
NASA Maps Support Earthquake Relief Efforts

During natural disasters like high-magnitude earthquakes, areas most in need of assistance must be located as fast as possible. Researchers, led by Sang-Ho Yun at NASA's Jet Propulsion Laboratory, Pasadena, California, have developed a way to make maps of damage using the remote sensing technology of...

News : Green Design & Manufacturing
NASA's EPIC Camera Captures Developing Tropical Lows

NASA's Earth Polychromatic Imaging Camera (EPIC) captured three developing tropical low-pressure areas in the Indian Ocean. The EPIC instrument flies aboard NOAA's Deep Space Climate Observatory (DSCOVR) satellite. EPIC views the entire sunlit face of the Earth from sunrise to sunset in 10...

News : Test & Measurement
NASA Studies How Volcanic Ash Affects Airplane Engines

NASA researchers are poring over data from a recent test that involved sending volcanic ash through an airplane engine. The primary issue, according to NASA, is that volcanic ash forms glass in the hot sections of some engines that clogs cooling holes and chokes off flow within the engine,...

News : Green Design & Manufacturing
Tiny Carbon-Capturing Motors Could Clean up Carbon Dioxide Pollution

Machines that are much smaller than the width of a human hair could one day help clean up carbon dioxide pollution in the oceans. Nanoengineers at the University of California, San Diego have designed enzyme-functionalized micromotors that rapidly zoom around in water, remove...

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