Hydrology Links

USGS - Water Resources of the US - The homepage of USGS Water Resources, this site allows you to access the many extremely informative services the USGS provides concerning the nation's water resources, including updated maps and data.

Ground Water Atlas of the US - Ohio - This page allows you to access large amounts of data for regional ground water analysis, including some interesting info about regional sources of freshwater.

The Great Lakes - An Environmental Atlas and Resource Book (NOTE: THIS PAGE WILL OVERRIDE THE FRAMES OF THIS ATLAS) - Produced by the Government of Canada (Environment Canada) and the US EPA, this book is perhaps the most useful and comprehensive source readily available for any information regarding the Great Lakes.  This book is provided in full through this link, and includes everything from the natural processes of the Great Lakes to the history of the agreements made to protect the Lakes.

Weekly Palmer Drought and Crop Moisture Data - This page provides weekly meteorological statistics for eastern US, including Ohio, divided into hydrologic regions.  This table shows such data as temperature, potential evaporation, soil moisture, and how much precipitation would be needed to end a current drought. 

Rate of Long-term Trend Temperature and Precipitation Change in US - From NOAA's Climate Prediction Center, these maps show trends in temperature and precipitation, with the data beginning in 1941 and 1931, and the trends beginning in 1966.  According to these maps, Ohio is cooler and wetter.

Hydrologic Info from the University of Akron, Dept. Geology - This site gives explanations and definitions of streamflow, stream gauging, and also has real-time hydrographs of the Cuyahoga River.

Hydrologic Information Center -- NWS and NOAA 

More links of other hydrologic information provided by NOAA and NWS

Hydrologic Info provided by the NWS of Cleveland

Great Lakes Water Quality Agreement

Ohio Department Natural Resources Division of Water

Calculated Soil Moisture Anomaly Change - This map, provided by NOAA's CPC, shows US soil moisture levels as deviations from their normal conditions.

Great North American Secchi Dip-In

Great Lakes Information Network