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Some observations on suspended sediment dynamics in Storbregrova, Jotunheimen
Author(s) -
Richards Keith
Publication year - 1984
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290090202
Subject(s) - sediment , meltwater , hydrology (agriculture) , surface runoff , streamflow , storm , sediment transport , suspended load , geology , hyperconcentrated flow , environmental science , flow (mathematics) , sedimentary budget , erosion , bed load , drainage basin , geomorphology , snow , oceanography , geotechnical engineering , biology , ecology , geometry , cartography , mathematics , geography
Observations are reported of the dynamics of suspended sediment transport in the meltstream of Storbreen in the Jotunheimen. Fine sediment is transferred from the subglacial to the proglacial environment during low flow (meltdominated) periods, and then removed from the catchment during high flow (rainfall‐controlled) events. Both diurnal and storm period sediment load‐discharge relationships involve clockwise hysteresis, but separate multivariate rating curves define variations of load with streamflow according to (1) the relative importance of meltwater and rainfall runoff, and (2) changes in the sediment source areas contributing to the stream at different times. Particle size variations in the suspended sediment also reflect varying source area influences.