Publications by authors named "John Schalles"
The development of algorithms for remote sensing of water quality (RSWQ) requires a large amount of in situ data to account for the bio-geo-optical diversity of inland and coastal waters. The GLObal Reflectance community dataset for Imaging and optical sensing of Aquatic environments (GLORIA) includes 7,572 curated hyperspectral remote sensing reflectance measurements at 1 nm intervals within the 350 to 900 nm wavelength range. In addition, at least one co-located water quality measurement of chlorophyll a, total suspended solids, absorption by dissolved substances, and Secchi depth, is provided.
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- - Water quality data for inland and coastal waters come from various sources, including professional and volunteer monitoring programs, automated sensors, and remote sensing, which when combined provide better insights for ecosystem management.
- - Recent advancements allow for improved scaling and integration of this data across different regions, leveraging satellite technology to enhance understanding and accessibility of water quality information.
- - The paper reviews current data integration frameworks and identifies gaps, proposing a new framework under the GEO AquaWatch Initiative to enhance global access and application of water quality data for effective resource management and decision-making.
The eastern oyster () is an important proxy for examining historical trajectories of coastal ecosystems. Measurement of ~40,000 oyster shells from archaeological sites along the Atlantic Coast of the United States provides a long-term record of oyster abundance and size. The data demonstrate increases in oyster size across time and a nonrandom pattern in their distributions across sites.
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