Meta Identifier	Dudley2002
Type of Data	Trends in Streamflow, River Ice, and Snowpack for Coastal River Basins in Maine During the 20th
Originator	U.S. Geological Survey
Description	Examination of trends streamflow, river ice, and snowpack for coastal river basins in Maine over the 20th Century. Date included in KRIS Sheepscot as images, not data tables.
Area	Maine Coastal Rivers
Metadata Date	6/21/2005
Metadata Contact	Brian Woolsey
Contact Person Primary	Robert W. Dudley
Status	complete
Access Constraints	none
Progress Log	Complete.
Lead Person	Eli
Lead Organization	IFR
Notes	STAC Priority: Not stated
Purpose	Examine the of trends streamflow, river ice, and snowpack for coastal river basins in Maine over the 20th Century.
Data Quality Information	high
Supplemental Information	Data comes from U.S. GEOLOGICAL SURVEY Water-Resources Investigations Report 02-4245
Keywords	climate, ice, snow, streamflow
On Line Linkage (URL)	http://me.water.usgs.gov
Publisher	U.S. GEOLOGICAL SURVEY
Publication Place	Augusta, Maine
Publication Date	2002
Abstract	Trends over the 20th Century were examined in streamflow, river ice, and snowpack for coastal river basins in Maine. Trends over time were tested in the timing and magnitude of seasonal river flows, the occurrence and duration of river ice, and changes in snowpack depth, equivalent water content, and density. Significant trends toward earlier spring peak flow and earlier center-of-volume runoff dates were found in the extended streamflow record spanning 1906-21 and 1929-2000. Only one of the six coastal rivers in the study analyzed for trends in cumulative runoff had a significant change in total annual runoff volume. Last spring river-ice-off dates at most coastal streamflow-gaging stations examined are trending to earlier dates. Trends in later fall initial onset of ice also are evident, although these trends are significant at fewer stations than that observed for ice-off dates. Later ice-on dates in the fall and (or) earlier ice-off dates in the spring contribute to a statistically significant decrease over time in the total number of days of ice occurrence at most gaging stations on coastal rivers in Maine. The longest, most complete snow records in coastal Maine indicate an increase in snow density for the March 1 snow-survey date during the last 60 years. The historical trends in streamflow, ice, and snow are all consistent with an earlier onset of hydrologic spring conditions in coastal Maine.
Contact Organization	U.S. Geological Survey
Contact Address	196 Whitten Road
Contact City	Augusta
Contact State	ME
Contact Zip Code	04330

 
 
 

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