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Fluorescence spectroscopy measurements of dissolved organic carbon in the Broadkill River estuary from 2020-01-22 to 2020-09-09 (NCEI Accession 0241383)
The data presented in this submission was for the Delaware Sea Grant project R/HCE-37 titled "Fingerprinting the sources or organic matter using fluorescence spectroscopy: a feasibility study in the Broadkill River estuary." There were three types of samples included, the first was insitu samples from the Broadkill River watershed, located in southern Delaware, USA. Samples were collected at three different times of the year to represent seasonality. The second type of sample was source samples that represented the different land uses found within the watershed. The third type was the source mix samples, which mixed the varying sources to try to mimic the natural environment. Dissolved organic carbon (DOC) concentrations were measured on each sample as well as ultra-violet/visible and fluorescence spectroscopy in the form of the specific ultra-violet absorbance at the wavelength 254 nm (SUVA254) and excitation-emission matrices (EEMs).
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Optical measurements for surface water samples collected within the Neshaminy Creek basin during November 2021
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Here we report optical data collected as part of a collaborative study between USGS Pennsylvania Water Science Center, Pennsylvania Department of Environmental Protection and Water Mission Area Proxies Project. The optical measurements reported here were collected to aide in the characterization of water sources and mixtures and establish proxies (surrogates) for per- and poly-fluorinated alkyl substances within the Neshaminy Creek basin. Data are compiled into three tables: 1) full fluorescence spectra in vectorized format, 2) full absorbance spectra, and 3) summary file of commonly extracted optical indicators and field-based sensor arrays.
Laboratory Optical Measurements Collected for Surface Water Samples Collected within Fraser River in the Upper Colorado River Basin from September 2021 through August 2023
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Optical spectra reported here are collected from 17 surface water sampling sites within the Fraser River, a headwaters drainage of the Upper Colorado River Basin in the central western United States. The sample collection was conducted as part of the partnership between the United States Geological Survey’s (USGS) Next Generation Water Observation System (NGWOS) and Proxies Project, in coordination with the USGS Colorado Water Science Center and California Water Science Center, and the East Grand Water Quality Board.
Fluorescence measurements along Chesapeake Bay and Delaware coast
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Measurements made in the Chesapeake Bay and off the Delaware coast in 2008.
Active fluorescence measurements in the Gulf Stream in 2001
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Measurements in the Gulf Stream off the East Coast of the US in 2001
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