Unleashing RAPID

The Routing Application for Parallel computation of Discharge (RAPID, here) is a river routing model. Given surface and groundwater inflow to rivers, this model can compute the flow and volume of water everywhere in river networks made out of many thousands of reaches. The design of RAPID allows it to be adapted to any river network, if given basic connectivity information. RAPID uses a matrix version of the Muskingum method, and has an automated parameter estimation procedure that allows finding optimal model parameters based on available gauge measurements.

Posted in: Briefs, Green Design & Manufacturing

Methods for Purifying Enzymes for Mycoremediation

This process applies to remediation and restoration of soils contaminated by fuel, polychlorinated biphenyl wastes, etc. While there can be a general beneficial effect of microbial communities, individual plant-fungus combinations can vary in their efficacy in removal of pollutants from the environment. Selection of the most effective combination of plants and fungi is very important for achieving the desired benefits. Not all fungi are created equal, as some die off in contaminated soils. Having a set of enzymes from fungi specifically adapted to conditions in contaminated soils and use of native plant/fungal combinations is a huge advantage. Ectomycorrhizal (EM) mediated remediation of phenolic-based contamination through use of specifically adapted soil and enzymes utilizes plant/fungal combinations that are specifically adapted to conditions created by phenolic application to soils, and the abilities of EM fungi to oxidize these compounds. This platform can be adapted to other ecosystems through field assessments of the EM community in each new site.

Posted in: Briefs, Green Design & Manufacturing, Land pollution, Sustainable development, Bacteria

Land Cover Viewer

The Land Use Land Cover Viewer is an online visualization tool that enables users to view land use land cover maps. The maps were developed under the Land Cover Mapping for Green House Gas (GHG) Inventories project, which sought to enable SERVIR Eastern and Southern Africa countries to have data to report on GHG inventories as required by UNFCCC. The countries for which land cover maps are available are Malawi, Rwanda, Zambia, Namibia, Botswana, Tanzania, Ethiopia, Uganda, and Lesotho. The viewer has maps for all nine countries for different epochs. Each country for each epoch has four to six maps based on two different classifications: country-specific and EPA. In addition to the viewer having the basic online map elements (legend, zoom, etc.), it has statistics modules that display the basic statistics of the displayed map based on a selection by the user.

Posted in: Briefs, Green Design & Manufacturing, Cartography, Imaging and visualization, Greenhouse gas emissions, Weather and climate


The Obs4MIPS.py software package is a front end to an existing free software package written by Lawrence Livermore National Lab, called “Climate Model Output Rewriter” (CMOR2), and reads in a multitude of standard data formats such as netcdf3, netcdf4, Grads control files, MATLAB data files, or a list of netCDF files. The software prepares Earth Science Observational (obs4MIPs) data or Climate Modeling Reanalysis (ana4MIPs) data for publication in the NASA Center for Climate Simulation (NCCS) Earth System Grid Federation system (ESGF). It converts the data into a netCDF file following the Climate and Forecast (CF) metadata convention as specified by Climate Model Intercomparison Project (CMIP5). Obs4MIPs.py addresses the differences in input data format, variable definition, and Global Attribute requirements that exist within observational and re-analyses datasets.

Posted in: Briefs, Green Design & Manufacturing, CAD, CAM, and CAE, Weather and climate, Data management

System, Apparatus, and Method for Liquid Purification

Scientists at NASA's Glenn Research Center have developed a unique water purification method that can be used for water recycling or point-of-use applications. Originally developed as a means to recycle water in space, this technology has applications in industrial water treatment, water recycling, and water purification for military bases, disaster sites, and regions without easy access to clean water. Relying on only electrical energy, this technology uses plasma-generated reactive species to decompose organic contaminants, ranging from submicron particles to water soluble organics like glycol, ethanol, and industrial dyes.

Posted in: Briefs, Green Design & Manufacturing, Water reclamation, Water treatment, Electric power

WX Subsystem Weather Station

This instrument can be used by any organization that needs to monitor weather or the effects of weather.

The WX Subsystem Weather Station was designed for use as part of the Weather Instrumentation (WX) Subsystem for the Constellation Program (CxP) to be implemented in the Launch Complex 39B at Kennedy Space Center. The weather stations need to be rugged, robust, and reliable. Although this equipment is not to be located in hazardous zones, it is still required to withstand harsh environmental conditions typical of the launch environment. Health management considerations are incorporated in the design so the user can be notified remotely when sensors, power supplies, dataloggers, etc. require service or maintenance.

Posted in: Briefs, Green Design & Manufacturing, Weather and climate, Durability, Reliability, Test equipment and instrumentation

Vulnerability Assessment Tool

Malawi has not been spared from the severe impacts of climate change. In the past two decades, Malawi has experienced a number of adverse climatic hazards, the most serious being dry spells, seasonal droughts, intense and unpredictable rainfall, riverine floods, and flash floods. Some of these, especially droughts and floods, have since increased in frequency, intensity, and magnitude over the past decades, and have adversely impacted food and water security, water quality, energy, and sustainable livelihoods of most rural communities. With its narrow economic base, limited agroprocessing industries, over-dependency on rain-fed agriculture, and biomass for household energy, Malawi is highly vulnerable to the adverse impacts of climate change and extreme weather events. This situation is exacerbated by increasing poverty among rural communities, increasing population pressure on a limited land resource base, land degradation arising from agricultural expansion and the cultivation of marginal lands, and increasing deforestation to meet the increasing demands for energy, food, and construction purposes.

Posted in: Briefs, Green Design & Manufacturing, Statistical analysis, Weather and climate, Developing countries, Risk assessments

Algae Bioreactor Using Submerged Enclosures with Semi-Permeable Membranes

Applications include diesel fuel production, lipid-based chemical production, advanced sewage treatment, and renewable energy.

NASA has invented an innovative method to grow algae, clean wastewater, and capture carbon dioxide to ultimately produce biofuel. The invention consists of floating flexible-plastic enclosures and photo-bioreactors with semi-permeable membranes. This new cultivation system is made of lightweight material and is deployed offshore, avoiding the problems of land costs and competition with other land uses. The surrounding waters provide infrastructure, cooling, and some mixing from wave action. Ideally, this cultivation system is filled with nutrient-rich domestic wastewater and a source of CO2 to promote the growth of algae and to remediate pollution.

Posted in: Briefs, Green Design & Manufacturing, Water reclamation, Biofuels, Biological sciences, Performance upgrades, Product development

Three-Band Cloud and Precipitation Radar

After many years of use of Tropical Rainfall Measurement Mission (TRMM) and CloudSat data, focus groups within the cloud and precipitation science community produced requirements for the next generation of missions. The first draft of Aerosol-Cloud-Ecosystem mission requirements was formalized in 2009, snowfall observation requirements were documented in 2011, and recently the discussion for the definition of a mission concept called the Cloud and Precipitation Process Mission (CaPPM) has been initiated.

Posted in: Briefs, Green Design & Manufacturing, Architecture, Radar, Weather and climate

System for In-Situ Detection of Plant Exposure to Trichloroethylene (TCE)

The system can scan the surface of a leaf to quickly detect the presence or absence of TCE without damaging the plant.

In collaboration with the State University of New York and the Naval Research Laboratory, NASA’s Marshall Space Flight Center is developing a hyperspectral estimator to detect trichloroethylene (TCE) in plants. TCE has been a widely used industrial solvent known to be toxic to humans and animals. Although its use and disposal have become more restricted in recent years, TCE is one of the more prevalent groundwater contaminants in the United States. Current methods exist to identify the locations of TCE at contaminated sites; however, these methods typically require destructive sampling techniques as well as time-consuming and expensive laboratory analysis. In contrast, the hyperspectral estimator is being designed as a nondestructive, quick, and lower-cost way to screen for TCE across large areas. It works by using spectral signatures to determine the presence/absence of TCE in the leaves of plants that may have absorbed the contaminant from surrounding groundwater.

Posted in: Briefs, Green Design & Manufacturing, Water pollution, Chemicals, Hazardous materials, Test equipment and instrumentation

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