A5022930599- Coral and Marine Ecosystems Studies
- Marine and coastal plant biology
- Marine and coastal ecosystems
- Coastal and Marine Management
- Water Quality Monitoring and Analysis
- Marine and fisheries research
- Underwater Acoustics Research
- Remote-Sensing Image Classification
- Atmospheric and Environmental Gas Dynamics
- Geochemistry and Geologic Mapping
- Identification and Quantification in Food
- Species Distribution and Climate Change
- Water Quality Monitoring Technologies
- Marine Toxins and Detection Methods
- Soil Geostatistics and Mapping
- Marine Ecology and Invasive Species
- Global Energy and Sustainability Research
- Remote Sensing in Agriculture
- Seismic Waves and Analysis
- Cephalopods and Marine Biology
- Pharmacological Effects and Toxicity Studies
- Ion Transport and Channel Regulation
- Geographic Information Systems Studies
- Rangeland and Wildlife Management
- Renal function and acid-base balance
National Aeronautics and Space Administration
2022-2023
Ames Research Center
2012-2021
Bay Area Environmental Research Institute
2014-2021
Ames National Laboratory
2020
University of Puerto Rico System
2012
The 2017–2027 National Academies' Decadal Survey, Thriving on Our Changing Planet, recommended Surface Biology and Geology (SBG) as a "Designated Targeted Observable" (DO). SBG DO is based the need for capabilities to acquire global, high spatial resolution, visible shortwave infrared (VSWIR; 380–2500 nm; ~30 m pixel resolution) hyperspectral (imaging spectroscopy) multispectral midwave thermal (MWIR: 3–5 μm; TIR: 8–12 ~60 measurements with sub-monthly temporal revisits over terrestrial,...
Cyanobacterial blooms are increasingly posing a severe threat to inland waters, particularly at the land-sea interface where toxins can be transported downstream with subsequent impacts both terrestrial and marine organisms. These relatively easy detect optically because of surface concentration cells, presence phycocyanin pigments, elevated backscatter associated cell size gas vacuoles. Major challenges limiting use remote sensing have been, first, that many these water bodies small...
Recent advances in machine learning and computer vision have enabled increased automation benthic habitat mapping through airborne satellite remote sensing. Here, we applied deep neural network architectures NASA NeMO-Net, a novel multimodal observation training for global of shallow tropical marine systems. These ecosystems, particularly coral reefs, are undergoing rapid changes as result increasing ocean temperatures, acidification, pollution, among other stressors. Remote sensing from air...
NASA NeMO-Net, The Neural Multimodal Observation and Training Network for global coral reef assessment, is a convolutional neural network (CNN) that generates benthic habitat maps of reefs other shallow marine ecosystems. To segment classify imagery accurately, CNNs require curated training datasets considerable volume accuracy. Here, we present citizen science approach to create these through novel 3D classification game mobile desktop devices. Leveraging science, the NeMO-Net video...
The coloration of tropical reef corals is mainly due to their association with photosynthetic dinoflagellates commonly known as zooxanthellae. Combining High Performance Liquid Chromatography (HPLC), spectroscopy and derivative analysis we provide a novel approach discriminate between the Caribbean shallow-water Acropora cervicornis Porites porites based on associated pigments. To best our knowledge, this first time that total array pigments found within coral holobiont reported. A 20...
Reef corals typically contain a number of pigments, mostly due to their symbiotic relationship with photosynthetic dinoflagellates. These pigments usually vary in presence and concentration influence the spectral characteristics corals. We studied variations pigment composition among seven Caribbean shallow-water Scleractinian by means High Performance Liquid Chromatography (HPLC) analysis further resolve discrimination found total 27 different coral species, including some alteration...
Coral reefs are one of the most biologically complex and diverse ecosystems within shallow marine environment. Unfortunately, these underwater threatened by a number anthropogenic challenges, including ocean acidification warming, overfishing, continued increase debris in oceans. This requires comprehensive assessment world's coastal environments, quantitative analysis on health extent coral other associated species, as vital Earth Science measurement. However, limitations observational...
Abstract Satellite imagery is a useful tool for monitoring and mapping the distribution of invasive or nuisance algal species on coral reefs over temporal spatial scales needed ecosystem management. Visual inspections high-resolution satellite were used to detect newly discovered alga, Chondria tumulosa , at Manawai (Pearl Hermes Atoll) in combination with ground-truthing surveys. Low-albedo (“dark”) survey sites spur habitats associated mean C. cover seven times higher than adjacent...
We present NeMO-Net, the first open-source fully convolutional neural network (FCNN) and interactive learning training software aimed at assessing past dynamics of shallow marine systems through habitat mapping into geomorphological (9 classes) biological classes (22 classes). Shallow systems, particularly coral reefs, are under significant pressures due to climate change, ocean acidification, other anthropogenic pressures, leading rapid, often devastating changes, in these fragile diverse...
Land-based sediment stress represents a threat to many coral reefs in Puerto Rico primarily as result of unrestricted land cover/land use changes and poor best management practices. The effects such stresses have been documented along most coasts around the island. However, little attention has paid located on north coast, very is known about their composition current state. Here, we present study characterizing riverine inputs, water quality conditions, benthic two previously undescribed...
NASA airborne missions over Monterey Bay demonstrated above- and in-water calibration validation measurements supporting a combined sensor approach (imaging spectrometer, microradiometers, sunphotometer) for coastal ocean color observations.