A5083693879- Marine and coastal ecosystems
- Water Quality Monitoring and Analysis
- Remote Sensing and LiDAR Applications
- Remote Sensing in Agriculture
- Water Quality Monitoring Technologies
- Land Use and Ecosystem Services
- Water Quality and Pollution Assessment
- Coastal wetland ecosystem dynamics
- Fish Ecology and Management Studies
- Soil erosion and sediment transport
- Marine and coastal plant biology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Rangeland and Wildlife Management
- Hydrology and Sediment Transport Processes
- Heavy metals in environment
- Aeolian processes and effects
- Marine and fisheries research
- Spacecraft Design and Technology
- Remote Sensing and Land Use
- Mercury impact and mitigation studies
- Oil Spill Detection and Mitigation
- Remote-Sensing Image Classification
- COVID-19 Pandemic Impacts
- Coastal and Marine Dynamics
- Species Distribution and Climate Change
U.S. Army Engineer Research and Development Center
2014-2025
United States Army
2014-2025
United States Army Corps of Engineers
2011-2023
NOAA National Centers for Coastal Ocean Science
2022-2023
National Oceanic and Atmospheric Administration
2022-2023
Environmental Technologies (United States)
2018-2022
GDA (United States)
2021
Aquatic Systems (United States)
2021
University of Cincinnati
2019
Adam Mickiewicz University in Poznań
2019
Abstract Supreme Court cases have questioned if jurisdiction under the Clean Water Act extends to water bodies such as streams without year‐round flow. Headwater are central this issue because many periodically dry, and little is known about their influence on navigable waters. An accurate account of extent flow permanence headwater critical estimating downstream contributions. We compared from two field surveys with values databases maps. The first used data 29 in nine U.S. forests, whereas...
Segmentation and object-oriented processing of single-season multi-season Landsat-7 Enhanced Thematic Mapper Plus (ETM+) data was utilized for the classification wetlands in a 1560 km2 study area north central Florida. This segmentation outperformed traditional maximum likelihood algorithm (MLC) accurately mapping wetlands, with overall accuracies 90.2% (single-season imagery) 90.8% (multi-season imagery), compared to MLC classifiers 78.4 79.0%, respectively. Kappa coefficients were over...
We analyzed 27 established and new simple therefore perhaps portable satellite phycocyanin pigment reflectance algorithms for estimating cyanobacterial values in a temperate 8.9 km2 reservoir southwest Ohio using coincident hyperspectral aircraft imagery dense water surface observations collected from 44 sites within 1 h of image acquisition. The were adapted to real Compact Airborne Spectrographic Imager (CASI), synthetic WorldView-2, Sentinel-2, Landsat-8, MODIS Sentinel-3/MERIS/OLCI...
ABSTRACT Restoration monitoring is generally perceived as costly and time consuming, given the assumptions of successfully restoring ecological functions services a particular ecosystem or habitat. Opportunities exist for remote sensing to bolster restoration science associated with wide variety injured resources, including resources affected by fire, hydropower operations, chemical releases, oil spills, among others. In last decade, role support has increased, in part due advent...
Traditional field vegetation plot surveys are critical for monitoring ecosystem restoration performance and include visual observations to quantitatively measure plants (e.g., species composition abundance). However, can be costly, time-consuming, only provide data at discrete locations, leaving potential gaps across a site. Uncrewed aircraft system (UAS) technology help fill between high-to-moderate spatial resolution 1–30 m) satellite imagery, manned airborne data, traditional surveys, yet...
Tailings generated by mining account for the largest world-wide waste from industrial activities. As an element, copper is relatively uncommon, with low concentrations in sediments and waters, yet very elevated around operations. On Keweenaw Peninsula of Michigan, USA, jutting out into Lake Superior, 140 mines extracted native Portage Volcanic Series, part intercontinental rift system. Between 1901 1932, two mills at Gay (Mohawk, Wolverine) sluiced 22.7 million metric tonnes (MMT)...
Various empirical algorithms have been developed to retrieve chlorophyll-a (Chl-a) from multispectral and hyperspectral images as a proxy variable for algal blooms in inland waters. In most previous studies, single model (global model) was calibrated the entire water body under study. Our analysis shows that performance of global is limited optically complex We discovered tends overestimate some regions underestimate other regions, residuals (errors) display an apparent spatial...
Monitoring harmful algal blooms (HABs) in freshwater over regional scales has been implemented through mapping chlorophyll-a (Chl-a) concentrations using multi-sensor satellite remote sensing data. Cloud-free measurements and a sufficient number of matched-up ground samples are critical for constructing predictive model Chl-a concentration. This paper presents methodological framework automatically pairing surface reflectance values from observations with water quality time space to form...
Remote sensing technologies offer a consistent, spatiotemporal approach to assess water quality, which includes the detection, monitoring, and forecasting of cyanobacteria harmful algal blooms. In this study, series ex-situ mesoscale experiments were conducted first develop then monitor Microcystis sp. bloom using hyperspectral sensor mounted on an unmanned aircraft system (UAS) along with coincident ground sampling efforts including laboratory analyses in-situ field probes. This allowed for...
GIS and remote sensing (RS) techniques using Landsat ETM+ objectoriented segmentation were developed to identify depressional isolated wetlands in a >2,600 km2 mixed land use area of north-central Florida, USA. Both the standalone RS method combined GIS/RS successful at identifying > 0.20 ha. Combining methods yielded producer user accuracies ranging from 93 100% 86 95%, respectively. The utilized successfully mapped could be used address questions surrounding national estimates areal...
Nesting habitat for the federally endangered loggerhead sea turtle (Caretta caretta) were designated as critical in 2014 beaches along Atlantic Coast and Gulf of Mexico. suitability is routinely determined based on site specific information. Given expansive geographic location C. caretta nesting highly dynamic coastal environment, understanding a regional scale essential monitoring changing status coast result hydrodynamic forces maintenance efforts. The increasing spatial resolution...
Monitoring and modeling of coastal vegetation wetland systems are considered major challenges, especially when considering environmental response to hazards, disturbances, management activities. Remote sensing applications can provide alternatives complementary approaches the often costly laborious field-based collection methods traditionally used for ecosystem monitoring. New improved sensors data analysis techniques have become available, making remote attractive evaluation potential use...
The eastern oyster (Crassostrea virginica) is a reef-forming organism commonly found in estuaries throughout the Atlantic and Gulf coasts of North America. Eastern reefs provide several ecosystem services, including water filtration, habitat diversity, storm surge protection, among others. Oyster abundance has declined precipitously during past century along as result overfishing, disease predation, large-scale human-mediated events. Given importance oysters, both ecologically economically,...
Advances in remote-sensing technology have led to its increased use for posthurricane disaster response and assessment; however, the of is underutilized recovery phase management cycle. This study illustrates an example a postdisaster assessment by detecting coastal land cover, elevation, volume changes using 3 years post-Katrina hyperspectral light detection ranging data collected along south shore Lake Pontchartrain, Louisiana. Digital elevation models basic land-cover classifications were...
There are numerous examples of past and present mine disposal into freshwater marine coastal bays riverine environments. Due to its high spatial resolution extended water penetration, light detection ranging (LiDAR), coupled with multispectral scanning (MSS), has great promise for resolving disturbed shoreline features in low turbidity Migrating tailings serious issues Lake Superior Previous investigations uncovered a metal-rich “halo” around the Keweenaw Peninsula, related copper mining...