Hypsographic Functions from Tabular Interpolation
The main function creates a function list object from a data table to allow interpolation of depths, areas and volume fractions of layers.
hypsographic table (bathymetry) given as data frame with
a list of functions with the following elements (slots):
level(volume)interpolates level from volume
volume(level)interpolates volume from a given water level
area(level)interpolates area from a given level
vh(level, zmixreal)calculates hypolimnic volume from surface water level (m above ground) and mixing depth (zmixreal, thermocline in m below surface)
ve(level, zmixreal)calculates epilimnic volume from surface water level and zmixreal
zmix(level, zmixreal)calculates average mixing depth (zmix) from surface water level and zmixreal
zhm(level, zmixreal)calculates average depth of bottom layer (hypolimnion and metalimnion)
sediment_area(level)calculates sediment area for a series of water levels, where
levelshoudl be a vecor of water levels in ascending order
pelagic_ratio(level)calculates the area ratio of the pelagic part (water) to the total area of layers. It is equal to 1 - sediment area fraction.
hypso_bautzen, an example of a hypsographic table
areaFunction, functions to create a hypsographic table for
lakes with conical shape.
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