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Open-File Report 2013–1251

Prepared in cooperation with the U.S. Geological Survey Greater Everglades Priority Ecosystems Science

Estimation of Missing Water-Level Data for the Everglades Depth Estimation Network (EDEN), 2013 Update

By Matthew D. Petkewich and Paul A. Conrads

Thumbnail of and link to report PDF (2.81 MB)Abstract

The Everglades Depth Estimation Network is an integrated network of real-time water-level gaging stations, a ground-elevation model, and a water-surface elevation model designed to provide scientists, engineers, and water-resource managers with water-level and water-depth information (1991–2013) for the entire freshwater portion of the Greater Everglades. The U.S. Geological Survey Greater Everglades Priority Ecosystems Science provides support for the Everglades Depth Estimation Network in order for the Network to provide quality-assured monitoring data for the U.S. Army Corps of Engineers Comprehensive Everglades Restoration Plan. In a previous study, water-level estimation equations were developed to fill in missing data to increase the accuracy of the daily water-surface elevation model. During this study, those equations were updated because of the addition and removal of water-level gaging stations, the consistent use of water-level data relative to the North American Vertical Datum of 1988, and availability of recent data (March 1, 2006, to September 30, 2011). Up to three linear regression equations were developed for each station by using three different input stations to minimize the occurrences of missing data for an input station. Of the 667 water-level estimation equations developed to fill missing data at 223 stations, more than 72 percent of the equations have coefficients of determination greater than 0.90, and 97 percent have coefficients of determination greater than 0.70.

First posted November 7, 2013

For additional information, contact:
Director, USGS South Carolina Water Science Center
Stephenson Center, Suite 129
720 Gracern Road
Columbia, SC 29210–7651
http://sc.water.usgs.gov/

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Suggested citation:

Petkewich, M.D., and Conrads, P.A., 2013, Estimation of missing water-level data for the Everglades Depth Estimation Network (EDEN), 2013 update: U.S. Geological Survey Open-File Report 2013–1251, 45 p., http://pubs.usgs.gov/of/2013/1251/.



Contents

Abstract

Introduction

Data-Collection Network

Estimation of Water-Level Data

Summary and Discussion

References Cited

Appendix 1. EDEN station, type of station, operating agency, vertical datum conversion, location, and water-surface model status sorted by area

Appendix 2. EDEN water-level estimation equations and performance statistics sorted by station name


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