Procedures for Adjusting Regional Regression Models of Urban-Runoff Quality Using Local Data

U.S. Geological Survey, Open-File Report 93-39

by A.B. Hoos and J.K. Sisolak

Table of Contents

Abstract

Introduction

Purpose and scope

Regional regression models of urban-runoff quality

Local urban-runoff quality data 1

Procedures for adjusting regional regression models of urban-runoff quality using local data

Model-adjustment procedures

Single-factor regression against regional prediction

Regression against regional prediction

Regression against regional prediction and additional local variables

Weighted combination of regional prediction and local-regression prediction

Selection of appropriate adjustment procedures

Model-adjustment procedure testing

Test procedures

Test results

Bellevue

Denver

Knoxville

Sensitivity analysis

Estimating the accuracy of model-adjustment procedures

Example application

Prediction of annual or seasonal urban-runoff quality

Summary

References cited

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