Hi All,
I want to kirg fish and seabird densities within an estuary which has several
arms. Since neither organisms cross land, the appropriate distances would not
be euclidian but over-water (as fish swim). There are several papers,
describing this problem and how to deal with it (see below), but I have not
found an easily accessible implementation. Is anybody aware of a solution in R?
Best,
Martin
@article{Rathbun:1998aa,
Author = {Rathbun, Stephen L.},
Journal = {Environmetrics},
Number = {2},
Pages = {109--129},
Title = {Spatial modelling in irregularly shaped regions: kriging
estuaries},
Volume = {9},
Year = {1998}}
@article{Little:1997aa,
Author = {Little, Laurie S. and Edwards, Don and Porter, Dwayne E.},
Journal = {Journal of Experimental Marine Biology and Ecology},
Number = {1},
Pages = {1--11},
Title = {Kriging in estuaries: as the crow flies, or as the fish
swims?},
Volume = {213},
Year = {1997}}
Martin Renner
US Geological Survey
Alaska Science Center
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