| Loading Estimate from Selected Major Streams using GRDC discharge and GEMS/Water WQ dataset, combined with continental-scale river basin model / Yosuke Yamashiki et al., Disaster Prevention Research Institute DPRI), Kyoto University, Japan We aim to estimate nutrient loading from Continental Zone throughout major trans-boundary river basin using the GEMS/Water Water Quality Dataset for the purpose of estimating the gross nutrient loading to the marine environment. We applied GRDC discharge dataset for the loading estimate based on the “observed” data. The locations of GEMS/Water and GRDC stations have been compared to identify appropriate station set to calculate loading. We also made gross estimation of future nutrient loading using continental-scale river basin model featuring GDBD (Global Drainage Basin Database) calibrated with GRDC monthly and daily discharge dataset. As a result, fluxes of nitrate and BOD of those rivers that flow into the Arctic Ocean are higher than other rivers, which might be caused either by livestock cultivation in the basin or by Nitrogen associated with permafrost melting. We also performed integration of continental-scale river basin model and general ocean model to estimate impacts of nutrient load into marine environment. download now (pdf, 535 KB)Loading Estimate from Selected Major Streams using GRDC discharge and GEMS/Water WQ dataset, combined with continental-scale river basin model / Yosuke Yamashiki et al., Disaster Prevention Research Institute DPRI), Kyoto University, Japan |
