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dc.contributorRiver Ice Management Program-
dc.contributor.authorBilello, Michael A.-
dc.contributor.authorGatto, Lawrence W.-
dc.contributor.authorDaly, Steven F.-
dc.contributor.authorGagnon, John J.-
dc.descriptionSpecial Report-
dc.descriptionAbstract: Corps of Engineers and National Weather Service records of ice conditionson the Allegheny and Monongahela Rivers in Pennsylvania and West Virginia were analyzed for seven recent winters. The on-ground observations recorded daily at a number of lock and dam locations were issued in the form of alpha numeric ice codes that included the coverage, type, thickness, structure and extent of river ice. These codes were used to graph ice conditions throughout the rivers to allow easier analysis of historical ice conditions. In addition, comparisons were made between these observations and aerial videotapes and satellite images of the ice. Results of these comparisons illustrate that ice data from these three sources are complementary and should be used together whenever possible.-
dc.publisherCold Regions Research and Engineering Laboratory (U.S.)-
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesSpecial report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 88-25.-
dc.rightsApproved for public release; distribution is unlimited.-
dc.sourceThis Digital Resource was created from scans of the Print Resource-
dc.subjectAllegheny River (Pa. and N.Y.)-
dc.subjectRiver ice-
dc.subjectWinter navigation-
dc.subjectMonongahela River-
dc.titleIce observations on the Allegheny and Monongahela-
Appears in Collections:Special Report

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