Site Statistics

sites selected

HydroCloud Instructions

• Map: The mapping page. This page defaults to a Google Maps interface using the topographic maps as a background and the current NEXRAD precipitation image as the foreground. Points represent USGS stream gages. By clicking on a point, the stream discharge and precipitation data for that site will be loaded into the system, where it can be viewed on the graphing page. Clicking on a point will also open a dialog box giving supplementary information about the site, including the name and ID# of the stream gage.
• Graph: The graphing page. There are two graphs available:
  • Hydrograph: Stream discharge, measured in cubic meters per second (cms) is plotted on a logarithmic Y axis. Time is plotted on the X axis. The tooltip displays the discharge and the name of the stream gage.
  • Flow Duration: a plot of all stream discharge measurements in cms ordered by size, from largest to smallest. Stream discharge is plotted on the y axis in a logarithmic scale in scientific notation, so that "1e+2" equals 100 cms and "4e+3" = 4000 cms.
• Stats: The site statistics page. This lists each site that has been selected in the map view, along with some simple site statistics, including the USGS site # and the area of the watershed in square miles.
• Help: Takes you to this page.
• Chat: Opens a chat sidebar where you can ask for help or post your comments.
• Legend: Toggles the legend box, which will float over the current page. The legend lists all of the selected sites. Selected sites with no stream gage data will be listed here, but will not appear in the graph view.

Description of the HydroCloud project

HydroCloud is a web-based, mobile-friendly tool for visually browsing hydrology data. Martin Roberge and Michael McGuire are the principal investigators for this project, which has been generously supported with a seed grant from the TU School of Emerging Technology.

Use us as a resource!

HydroCloud is easy to embed in your website, or you can use our hydrograph to plot your own data!

We've created lots of tutorials that explain how to use us as a resource.

Contributors Welcome!

Do you have an idea for improving this website? Do you have a dataset that you would like to add to our collection? Come join us on GitHub!

~~bug reports & pull requests welcome~~

Visit our GitHub repository: https://github.com/mroberge/HydroCloud

Data Sources

HydroCloud thanks the following data providers:

• Base maps & associated data services
  • Street map, terrain map, map data: ©2017 Google
  • Satellite Base Map: Google Imagery ©2017 TerraMetrics
  • Google Street View ©2017 Google
• NEXRAD imagery © 2001-2017 Iowa State University Iowa Environmental Mesonet
• Stream discharge data providers (list of stations)
  • US discharge and station data courtesy of the U.S. Geological Survey
  • German discharge and station data ©2017 Wasserstraßen- und Schifffahrtsverwaltung des Bundes
  • UK sites use Environment Agency flood and river level data from the real-time data API (Beta)
• GAGES-II station data ©2011 James Falcone