Mathematics – Logic
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3113501l&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 13, CiteID L13501
Mathematics
Logic
10
Global Change: Biogeochemical Processes (4805), Hydrology: Stochastic Processes, Hydrology: Surface Water Quality, Mathematical Geophysics: Modeling, Oceanography: Biological And Chemical: Nutrients And Nutrient Cycling
Scientific paper
We show that the large spatial aggregation of model parameters in common catchment scale nitrogen budget modeling leads to artifacts that may, for instance, be a factor in explaining reported decreases of calibrated in-stream nitrogen loss rates, λs*, with increasing stream size. In general, the common assumption of a single representative solute travel time for an entire stream reach may lead to considerable underestimation of the actual underlying local biogeochemical loss rate λs by λs*, which increases with actual λs value and/or increasing mean solute travel time and travel time variability in the stream. We propose an up-scaling methodology to overcome such model artifacts, in form of closed-form expressions of catchment-scale, in-stream nitrogen delivery factors for diffuse and point sources, as functions of local-scale nitrogen loss rates, λs.
Destouni Georgia
Lindgren G. A.
No associations
LandOfFree
Nitrogen loss rates in streams: Scale-dependence and up-scaling methodology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nitrogen loss rates in streams: Scale-dependence and up-scaling methodology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nitrogen loss rates in streams: Scale-dependence and up-scaling methodology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1010127