Science Inventory

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Monitoring of Cyanobacterial Harmful Algal Blooms (CyanoHABs) using traditional field methods can be time- and labor-intensive. Remote sensing of blooms can be a complement to these monitoring efforts. This presentation will focus on the Cyanobacterial Assessment Network (CyAN), ...

Optical water properties, including some types of suspended sediments, can affect satellite retrieval data.&nbsp; Select suspended sediment-laden (Secchi depth = 0.21 - 1.3 m) freshwater reservoirs in Kansas with known histories of cyanobacteria blooms and cyanotoxin production w...

Optical water properties can effect satellite retrievals including some kinds of suspended sediments. &nbsp;Selected suspended-sediment laden (Secchi Depth ranging from 0.21 to 1.3 m), freshwater reservoirs in Kansas were evaluated due to a known history of cyanobacteria blooms a...

The U.S. Harmful Algal Bloom and Hypoxia Research Control Act calls for robust approaches to forecasting cyanobacterial harmful algal blooms (cyanoHABs). Accurate forecasting technology could save local communities healthcare costs through the early detection of cyanoHABs and the...

The burning of piled woody biomass, or pile burns, is a major method for disposing of cut and downed wood from logging operations and for wildland hazardous fuel reduction. Pile burning is the predominant prescribed fire practice in the northwestern United States and is extensive...

Riparian functioning condition refers to a rating and description of the current ecological status of a reach of a riparian ecosystem in consideration of its potential hydrology, vegetation, and geomorphology. Reach rating options are Proper Functioning Condition (PFC), Functiona...

Phoenix is in nonattainment of the National Ambient Air Quality Standard (NAAQS) for ozone and related oxidants. Despite large reductions in the bottom-up estimate of nitrogen oxide emissions over the last decade, site-level ozone design values in the Phoenix nonattainment region...

Gridded datasets of methane (CH4) and carbon dioxide (CO2) fluxes are used to benchmark Earth system models, attribute changes in rates of atmospheric concentrations of greenhouse gases, and project future climate change. The main approaches for deriving these datasets are bottom...

The Southern Appalachian Mountains experienced several significant wildfires in 2016, which caused extensive damage to the region's forests and wildlife habitats, and potentially altered hydrological processes. This has raised concerns about the resilience and long-term recovery ...

Climate change is leading to river ice thinning and shorter ice cover durations, posing significant risks to travel safety. Due to limited in situ observations in Alaska, models and remote sensing are employed to understand changing river conditions. This study conducts a compara...

Several areas in the Lake Michigan region are violating the human health-based ozone (O3) National Ambient Air Quality Standard. Land-water meteorology driven build-up of precursor pollutants (NOX&nbsp;and VOC) from mobile and stationary sources undergo photochemical O3&nbsp;prod...

Fundamental physical controls on dissolved oxygen &ndash; such as salinity, light availability, and water temperature &ndash; have distinct longitudinal gradients within river ecosystems. These gradients are particularly important in major tributaries of the Chesapeake Bay, which...

As the world's reservoirs experience drawdowns from reduced precipitation and increased water demand, vast expanses of sediment are being exposed and colonized by vegetation. Within Lake Powell, the second largest reservoir in the U.S., drought in the Colorado River Basin has led...

Chlorophyll-a and cyanobacteria have not been routinely monitored in many estuaries and coastal rivers, but it is possible to detect blooms using remote sensing. The overall goal of this project is to evaluate the effectiveness of remote sensing to detect algal blooms in coastal ...

Wildland fires can negatively affect freshwater resources through release of a variety of pollutants. Nutrients releasedfrom wildland fires can also contribute to downstream eutrophication and harmful algal blooms that can adversely affectdownstream aquatic ecosystems. The impact...

Decisions on air quality management are often informed though analyses of complex data. Facilitating access to complex data sets in an analysis ready fashion is an important component to aid in improved decision making. The Remote Sensing Information Gateway (RSIG) is a web-based...

Water recreation is valuable to people, and its value can be affected by changes in water quality. This paper presents the results of a revealed preference survey to elicit coastal New England, USA, residents&rsquo; values for water recreation and water quality. We combined the s...

Post-fire harvest (PFH) is a forest management practice designed to salvage value from burned timber, mitigate safety hazards from dead trees, reduce long-term fuels, and prepare sites for replanting. Despite public controversy and extensive ecological research, little is known a...

The presentation highlights the primary sources of uncertainty in satellite-based remote sensing of atmospheric trace gas vertical column abundance using ultraviolet and visible solar backscatter, ORD efforts to provide validation from both statistical and process-level perspecti...

Formaldehyde column density (&Omega;HCHO) showed a potentially useful correlation with surface ozone during the LISTOS campaign on Long Island Sound and the KORUS-AQ campaign in Seoul, South Korea. This builds on previous work that identified this relationship from in situ aircra...

This presentation will provide an update on the EPA Pandora sun photometers to state and local agencies. It will address the roles EPA plays in ensuring the data quality and how to access data using RSIG3D. It also provides an example of Pandora NO2 data plotted against TROPOMI N...

Understanding the local-scale spatial and temporal variability of ozone formation is crucial for effective mitigation. We combine tropospheric vertical column densities (VCDTrop) of formaldehyde (HCHO) and nitrogen dioxide (NO2), referred to as HCHO-VCDTrop&nbsp;and NO2-VCDTrop, ...

An update on TEMPO history, operations, along with a bit of a primer, and a preliminary evaluation of the NO2 data product.

This talk presents an overview efforts within CEMM to improve the integration of remote sensing measurements and data for use in air quality assessments and modeling.&nbsp; Specifically this presentation focused on past and present research in this area.&nbsp; &nbsp;Past research...

Presentation overview of the five STAR projects funded under the notice of funding opportunity titled &quot;Understanding and Control of Municipal Solid Waste Landfill Air Emissions&quot;.