Water stats flow to Web

Water stats flow to Web

A new Web calculator has cut 'from two or three days to 10 seconds' the time it takes to estimate the water flow in a Massachusetts river or stream, said U.S. Geological Survey hydrologist Kernell Ries.

Streamstats, posted at ma.water.usgs.gov/streamstats, was a collaborative effort by USGS, the state of Massachusetts and contractor Syncline Inc. of Cambridge, Mass.

'We created the polynomial equations, the MassGIS staff did the geographic information system, and Syncline did the Web end and Java programming,' Ries said.

The GIS is ArcView from Environmental Systems Research Institute of Redlands, Calif. USGS' 13 equations plug watershed gauge readings from user-chosen locations into Minitab statistical software from Minitab Inc. of State College, Pa.

State and federal agencies, local commissioners, planners and engineers can use Streamstats to calculate flows for pollutant discharge or water withdrawal permits. USGS plans to take the service nationwide.

'Susan M. Menke

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