Coding and Statistical Data Capabilities @ MD-DE-DC
Coding and Statistical Data Capabilities at the MD-DE-DC Water Science Center
Calculating Water Science
This site is dedicated to Coding and Statistical Data that is produced and analyzed by scientists at the MD-DE-DC WSC. We use many tools at the USGS including software exclusively developed for, sometimes written by the USGS.
Wastewater Nutrient Data Preps, Estimates using PSLoadEsT

The Point-Source Load Estimation Tool (PSLoadEsT) provides a user-friendly interface for generating reproducible load calculations for point source dischargers while managing common data challenges. This report serves as a detailed user's guide.
Bank‐derived material tops fluvial sediment in suburban watershed

Excess fine sediment is a leading cause of ecological degradation within the Chesapeake Bay watershed. To effectively target sediment mitigation measures, it is necessary to identify and quantify the delivery of sediment sources to local waterbodies.
What the MD-DE-DC WSC is capable of doing within the realms Coding and Statistical Data...
Important things happening related to Coding and Statistical Data:
11 May 2020 Introduction to the dataRetrieval package

The dataRetrieval package was created to simplify the process of loading hydrologic data into the R environment. It is designed to retrieve the major data types of U.S. Geological Survey (USGS) hydrologic data that are available on the Web, as well as data from the Water Quality Portal (WQP), which currently houses water quality data from the Environmental Protection Agency (EPA), U.S. Department of Agriculture (USDA), and USGS. Direct USGS data is obtained from a service called the National Water Information System (NWIS).
Statistics Web Service
Here is a sample of our exclusive USGS-based software:
- GNWISQ (Windows) Version 1.1, 2014/09/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Get National Water Information System Streamflow (Q) files - HydroClimATe (WIN) Version 1.0.0, 2014/03/07
Computer program for assessing the relations among variable climatic and hydrologic time-series data - HyDroDSS (Windows) Version 1.0.0.0, 2014/03/27
Hydrologic Drought Decision Support System - JUPITER API (DOS/Win) Version 1.7.3, 2013/8/6
The Joint Universal Parameter IdenTification and Evaluation of Reliability Application Programming Interface - KTRLine (Win) Version 1.0, 2010/01/11
Kendall-Theil Robust Line - LOADEST (Linux/Unix/Win)
Homepage for LOADEST software distributed by the U.S. Geological Survey - MkDF (Windows) Version 1.0, 2009/12/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Make U.S. Environmental Protection Agency DFLOW3 batch-input files - MkPP (Windows) Version 1.0, 2009/12/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Make Plotting Position - NSS (Win) Version 6.1, 2017/01/10
National Streamflow Statistics program - OPR-PPR (Win/DOS) Version 1.01, 2016/01/31
A Computer Program for Assessing Data Importance to Model Predictions Using Linear Statistics - QSTATS (Windows) Version 1.1, 2014/09/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Streamflow (Q) Statistics - SEDSIZE (DOS/DG/Sun) Version 1.9, 1997/06/02
Particle-size statistics of fluvial sediments - SELDM (Win) Version 1.0.0.0, 2013/03/27
Stochastic empirical loading and dilution model - SREF (Windows) Version 1.0, 2009/12/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Streamflow Record Extension Facilitator - StreamStats (online) Version 2, 2011/01/07
StreamStats streamflow statistics web application - SWSTAT (DOS/Sun) Version 4.1, 2002/02/25
Surface-Water Statistics - USGS Library for S-PLUS (Win) Version 4.0, 2011/07/13
A collection of functions, dialogs, and datasets for use in hydrologic applications - WREG (Win) Version 1.05, 2013/05/08
Weighted-multiple-linear REGression
Some related USGS-based content is featured below. This content is featured as projects, working groups, study areas, and other capability teams as they exist throughout the USGS Water Resources discipline.
Applied Statistical Methods and Tools
Everything you need to know about SPARROW
Delaware River Basin Focus Area Study: Statistical Streamflow Modeling
Determining Nutrient and Sediment Loads and Trends in the Chesapeake Bay Watershed by Using An Enhanced Statistical Technique
USGS-Chesapeake Bay Program Watershed Model
Below are publications associated with this project.
Incorporation of water-use summaries into the StreamStats web application for Maryland
Toward explaining nitrogen and phosphorus trends in Chesapeake Bay tributaries, 1992-2012
Spatial and Temporal Patterns of Best Management Practice Implementation in the Chesapeake Bay Watershed, 1985–2014
We use many tools at the USGS exclusively developed for and/or by the USGS. Below is a small sample of the statistical tools we use here at MD-DE-DC WSC.
StreamStats Application
WaterWatch Toolkit
USGS Statistics Web Service: Retrieve daily, monthly or annual statistics for sites. Statistics are provided on approved data for time-series sites. Statistics are available for any parameter with approved data.
USGS Instantaneous Values Web Service: Use this service to retrieve recent and historical values for streamflow as well as data for other regular time-series parameters served by the USGS.
Point-Source Load Estimation Tool (PSLoadEsT)
National Streamflow Statistics (NSS) Application - Formerly NSS Program
API - Graphing Water Information System (GWIS)
SELDM: Stochastic Empirical Loading and Dilution Model - Software page
KTRLine: Kendall-Theil Robust Line - Software page
SutraPlot: A Windows-Based Visualization Tool for 2D and 3D SUTRA Simulations
This site is dedicated to Coding and Statistical Data that is produced and analyzed by scientists at the MD-DE-DC WSC. We use many tools at the USGS including software exclusively developed for, sometimes written by the USGS.
Wastewater Nutrient Data Preps, Estimates using PSLoadEsT

The Point-Source Load Estimation Tool (PSLoadEsT) provides a user-friendly interface for generating reproducible load calculations for point source dischargers while managing common data challenges. This report serves as a detailed user's guide.
Bank‐derived material tops fluvial sediment in suburban watershed

Excess fine sediment is a leading cause of ecological degradation within the Chesapeake Bay watershed. To effectively target sediment mitigation measures, it is necessary to identify and quantify the delivery of sediment sources to local waterbodies.
What the MD-DE-DC WSC is capable of doing within the realms Coding and Statistical Data...
Important things happening related to Coding and Statistical Data:
11 May 2020 Introduction to the dataRetrieval package

The dataRetrieval package was created to simplify the process of loading hydrologic data into the R environment. It is designed to retrieve the major data types of U.S. Geological Survey (USGS) hydrologic data that are available on the Web, as well as data from the Water Quality Portal (WQP), which currently houses water quality data from the Environmental Protection Agency (EPA), U.S. Department of Agriculture (USDA), and USGS. Direct USGS data is obtained from a service called the National Water Information System (NWIS).
Statistics Web Service
Here is a sample of our exclusive USGS-based software:
- GNWISQ (Windows) Version 1.1, 2014/09/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Get National Water Information System Streamflow (Q) files - HydroClimATe (WIN) Version 1.0.0, 2014/03/07
Computer program for assessing the relations among variable climatic and hydrologic time-series data - HyDroDSS (Windows) Version 1.0.0.0, 2014/03/27
Hydrologic Drought Decision Support System - JUPITER API (DOS/Win) Version 1.7.3, 2013/8/6
The Joint Universal Parameter IdenTification and Evaluation of Reliability Application Programming Interface - KTRLine (Win) Version 1.0, 2010/01/11
Kendall-Theil Robust Line - LOADEST (Linux/Unix/Win)
Homepage for LOADEST software distributed by the U.S. Geological Survey - MkDF (Windows) Version 1.0, 2009/12/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Make U.S. Environmental Protection Agency DFLOW3 batch-input files - MkPP (Windows) Version 1.0, 2009/12/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Make Plotting Position - NSS (Win) Version 6.1, 2017/01/10
National Streamflow Statistics program - OPR-PPR (Win/DOS) Version 1.01, 2016/01/31
A Computer Program for Assessing Data Importance to Model Predictions Using Linear Statistics - QSTATS (Windows) Version 1.1, 2014/09/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Streamflow (Q) Statistics - SEDSIZE (DOS/DG/Sun) Version 1.9, 1997/06/02
Particle-size statistics of fluvial sediments - SELDM (Win) Version 1.0.0.0, 2013/03/27
Stochastic empirical loading and dilution model - SREF (Windows) Version 1.0, 2009/12/15
Obtaining and analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web Site: Streamflow Record Extension Facilitator - StreamStats (online) Version 2, 2011/01/07
StreamStats streamflow statistics web application - SWSTAT (DOS/Sun) Version 4.1, 2002/02/25
Surface-Water Statistics - USGS Library for S-PLUS (Win) Version 4.0, 2011/07/13
A collection of functions, dialogs, and datasets for use in hydrologic applications - WREG (Win) Version 1.05, 2013/05/08
Weighted-multiple-linear REGression
Some related USGS-based content is featured below. This content is featured as projects, working groups, study areas, and other capability teams as they exist throughout the USGS Water Resources discipline.
Applied Statistical Methods and Tools
Everything you need to know about SPARROW
Delaware River Basin Focus Area Study: Statistical Streamflow Modeling
Determining Nutrient and Sediment Loads and Trends in the Chesapeake Bay Watershed by Using An Enhanced Statistical Technique
USGS-Chesapeake Bay Program Watershed Model
Below are publications associated with this project.
Incorporation of water-use summaries into the StreamStats web application for Maryland
Toward explaining nitrogen and phosphorus trends in Chesapeake Bay tributaries, 1992-2012
Spatial and Temporal Patterns of Best Management Practice Implementation in the Chesapeake Bay Watershed, 1985–2014
We use many tools at the USGS exclusively developed for and/or by the USGS. Below is a small sample of the statistical tools we use here at MD-DE-DC WSC.
StreamStats Application
WaterWatch Toolkit
USGS Statistics Web Service: Retrieve daily, monthly or annual statistics for sites. Statistics are provided on approved data for time-series sites. Statistics are available for any parameter with approved data.
USGS Instantaneous Values Web Service: Use this service to retrieve recent and historical values for streamflow as well as data for other regular time-series parameters served by the USGS.