Person

Marissa L Rossi

Hydrologist (Pathways Recent Grad)

Pennsylvania Water Science Center

Email: mrossi@usgs.gov
Office Phone: 610-518-7223
ORCID: 0000-0003-2341-0312

Location
One Ridgewood Place
408 Boot Road
Suite 408
Downingtown , PA 19335
US

Supervisor: Andrew G Reif

2 items:

Benthic-macroinvertebrate and habitat data in Chester, Delaware, and Philadelphia Counties, Pennsylvania, 1998-2021 The Stream Conditions of Chester County Biological Monitoring Network was established by the U.S. Geological Survey and the Chester County Water Resources Authority in 1969. Benthic-macroinvertebrate, habitat, and stream chemistry data were collected annually from 1998-2021 at 18 fixed location sites. Additionally, nine flexible location sites were selected and sampled annually from 1998-2021. Some of the flexible location sites were sampled more than once over the study period. All data were collected in the fall months (October-November) during baseflow conditions. The benthic-macroinvertebrate data collected was used to calculate six metrics and to establish an index of biotic integrity for each sample, while... Categories: Data; Tags: Aquatic Biology, Chester County, Delaware County, Hydrology, Pennsylvania, All tags...
Surrogate regression models for computation of time series chloride concentrations, Chester County, Pennsylvania (2023) In cooperation with state and county agencies, including the Chester County Water Resources Authority (CCWRA), the U.S. Geological Survey (USGS) has collected discrete stream samples for analysis of chloride concentrations at three real-time streamflow and water-quality monitoring (specific conductance) stations located in Chester County, Pennsylvania. Data were collected from 2010-2023 at these stations for the application of predicting chloride concentrations using real-time continuous specific conductance and streamflow data. Regression equations were developed by relating discrete-sample chloride and discrete specific conductance data, as well as continuous streamflow data. Regression equations included possible... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chloride, Salinity, USGS Science Data Catalog (SDC), Water Quality, surrogate regression

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