Machine Learning Specialist
Office of the Chief Operating Officer
Email:
jsmith@usgs.gov
ORCID:
0000-0003-3124-8255
Location
12201 Sunrise Valley Dr
Reston
, VA
20192
US
Supervisor:
Joel D Blomquist
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This model archive contains the input data, model code, and model outputs for machine learning models that predict daily non-tidal stream salinity (specific conductance) for a network of 459 modeled stream segements across the Delaware River Basin (DRB). Results are provided for two time periods: the historical drought-of-record from 1965-10-02 to 1969-12-30, and that same drought evaluated in climatic conditions that are consistent with a LENS2 enseble climate projection from 2057-10-02 to 2061-12-30. Results are provided for a total of three Random Forest models, corresponding to three input attribute sets (dynamic attributes, dynamic and static attributes, and dynamic attributes and a minimum set of static attributes)....
Categories: Data,
Data Release - In Progress;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Delaware (DE),
Delaware River Basin,
Environment,
Machine Learning,
Maryland (MD), All tags...
Modeling,
New Jersey (NJ),
New York (NY),
Pennsylvania (PA),
Stream Salinity,
United States (US),
Water quality/Water chemistry, Fewer tags
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Salinity dynamics in the Delaware Bay estuary are a critical water quality concern as elevated salinity can damage infrastructure and threaten drinking water supplies. Current state-of-the-art modeling approaches use hydrodynamic models, which can produce accurate results but are limited by significant computational costs. We developed a machine learning (ML) model to predict the 250 mg/L Cl- isochlor, also known as the salt front, using daily river discharge, meteorological drivers, and tidal water level data. We use the ML model to predict the location of the salt front, measured in river miles (RM) along the Delaware River, during the period 2001-2020, and we compare the ML model results to results from the hydrodynamic...
Categories: Data;
Tags: DE,
Delaware,
Delaware River Basin,
Hydrology,
MD, All tags...
Maryland,
NJ,
NY,
New Jersey,
New York,
PA,
Pennsylvania,
US,
USGS Science Data Catalog (SDC),
United States,
coastal science,
deep learning,
environment,
estuary,
explainable AI,
hybrid modeling,
information theory,
inlandWaters,
machine learning,
modeling,
salinity,
salt front,
water,
water resources, Fewer tags
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