Dear all,

I'm trying to perform a typical depth-time graph with chlorophyll isoclines for a lake study. I have a three column table with A) time since the first sample in days; B) Depth, in meters; and C) ChlA values, in micrograms/L. Does anyone know how to make this kind of graph in R? 

Also, would it be possible to interpolate values in all the depth-time space, maybe by krigging methods?

Many thanks in advance,

Andrés

-- 
Andrés Mellado Díaz

Centre for Hydrological Studies CEH-CEDEX
Aquatic Ecosystems Dividion 

Pº bajo de la Virgen del Puerto, 3
28005, Madrid
SPAIN
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