Hyperspectral Water Reflectance Spectra and TSS in Matagorda and Trinity BaysDataset overviewThis dataset contains 117 in situ hyperspectral water reflectance spectra collected in two Texas estuarine systems-Matagorda Bay (MB) and Trinity Bay (TB)—during monthly field campaigns spanning August 2024 to July 2025. For each spectrum, a coincident water sample was collected and analyzed for Total Suspended Solids (TSS), enabling paired spectral–TSS modeling and validation. Spectral coverage and resolution Wavelength range: 400–900 nm Sampling interval: 1 nm (501 wavelength bands) Files and structure Format: Excel (.xlsx) Sheet: Sheet1 (or spectra if using the companion file provided here) Rows: wavelengths (nm) Columns: one spectrum per sample (117 samples) First column: Wavelength (nm) Remaining columns: reflectance values for each sample Sample naming convention and TSS encodingEach spectrum column header includes the campaign label and site ID (e.g., MB/TB station code). The associated TSS value (mg L⁻¹) is stored in the column name after the final hyphen.Example: July 25 TB5 - 22 → Site: TB5, Campaign label: “July 25 TB5”, TSS = 22 mg L⁻¹.Note: spacing in column headers may vary; for reliable parsing, extract TSS using the last hyphen. Variables and units Wavelength (nm): nanometers Spectral values: in situ hyperspectral water reflectance (unitless/reflectance-based; see associated manuscript for field protocol and processing details) TSS: mg L⁻¹ (laboratory measurement paired with each spectrum) Intended useThese data support: Training/validation of empirical or ML models for TSS retrieval Spectral feature/band importance analyses (e.g., red and red–NIR sensitivity to suspended sediment) Cross-comparison with imaging spectroscopy satellite products (e.g., PRISMA/EMIT/PACE) when co-located/temporally matched Data notesSmall near-zero negative values may occur at some wavelengths due to instrument noise and processing; users may apply standard QA/QC (e.g., filtering or clipping) as appropriate for their workflow. CitationPlease cite this dataset as: Karaca, O., Khan, S., Carlson, B., Wright, K., & Aramburu Tinoco, C. (2026). Hyperspectral water reflectance spectra and TSS measurements from Matagorda Bay and Trinity Bay, Texas (Aug 2024–Jul 2025) (Version 1) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.18332065Article citation:Karaca, O., Khan, S., Carlson, B., Wright, K., & Aramburu Tinoco, C. (in review / 2026). Machine Learning Based Measuring of Total Suspended Solids in Estuarine Waters Using Hyperspectral Satellite and In Situ Data.